MainActivity: generate dynamic menu from last two weeks

Make the UI more flexible and
slightly easier to understand.

app/build.gradle.kts

@@ -6,12 +6,12 @@ plugins {
 
 android {
     namespace = "it.danieleverducci.lunatracker"
-    compileSdk = 34
+    compileSdk = 36
 
     defaultConfig {
         applicationId = "it.danieleverducci.lunatracker"
         minSdk = 21
-        targetSdk = 34
+        targetSdk = 36
         versionCode = 7
         versionName = "0.9"
 
@@ -31,6 +31,12 @@ android {
         sourceCompatibility = JavaVersion.VERSION_11
         targetCompatibility = JavaVersion.VERSION_11
     }
+    dependenciesInfo {
+        // Disables dependency metadata when building APKs.
+        includeInApk = false
+        // Disables dependency metadata when building Android App Bundles.
+        includeInBundle = false
+    }
     kotlinOptions {
         jvmTarget = "11"
     }
@@ -40,7 +46,6 @@ android {
 }
 
 dependencies {
-
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.activity.compose)
@@ -51,7 +56,7 @@ dependencies {
     implementation(libs.androidx.material3)
     implementation(libs.androidx.appcompat)
     implementation(libs.androidx.recyclerview)
-    implementation("com.github.thegrizzlylabs:sardine-android:v0.9")
+    implementation(libs.sardine.android)
     implementation(libs.material)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
@@ -60,4 +65,5 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+    implementation(libs.mpandroidchart.vv310)
 }

app/src/main/AndroidManifest.xml

@@ -30,6 +30,10 @@
             android:name=".SettingsActivity"
             android:label="@string/settings_title"
             android:theme="@style/Theme.LunaTracker"/>
+        <activity
+            android:name=".StatisticsActivity"
+            android:label="@string/statistics_title"
+            android:theme="@style/Theme.LunaTracker"/>
     </application>
 
 </manifest>

app/src/main/java/it/danieleverducci/lunatracker/MainActivity.kt

@@ -6,13 +6,16 @@ import android.content.DialogInterface
 import android.content.Intent
 import android.os.Bundle
 import android.os.Handler
+import android.text.Editable
 import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.AdapterView
 import android.widget.ArrayAdapter
+import android.widget.Button
 import android.widget.EditText
+import android.widget.LinearLayout
 import android.widget.NumberPicker
 import android.widget.PopupWindow
 import android.widget.Spinner
@@ -49,6 +52,9 @@ class MainActivity : AppCompatActivity() {
         const val TAG = "MainActivity"
         const val UPDATE_EVERY_SECS: Long = 30
         const val DEBUG_CHECK_LOGBOOK_CONSISTENCY = false
+        // list of all events
+        var allEvents = arrayListOf<LunaEvent>()
+        var currentPopupItems = listOf<LunaEvent.Type>()
     }
 
     var logbook: Logbook? = null
@@ -80,31 +86,13 @@ class MainActivity : AppCompatActivity() {
         recyclerView = findViewById(R.id.list_events)
         recyclerView.setLayoutManager(LinearLayoutManager(applicationContext))
 
+        populateHeaderMenu()
+
         // Set listeners
         findViewById<View>(R.id.logbooks_add_button).setOnClickListener {
             showAddLogbookDialog(true)
         }
-        findViewById<View>(R.id.button_bottle).setOnClickListener {
-            addBabyBottleEvent(LunaEvent(LunaEvent.TYPE_BABY_BOTTLE))
-        }
-        findViewById<View>(R.id.button_food).setOnClickListener {
-            addNoteEvent(LunaEvent(LunaEvent.TYPE_FOOD))
-        }
-        findViewById<View>(R.id.button_nipple_left).setOnClickListener {
-            addPlainEvent(LunaEvent(LunaEvent.TYPE_BREASTFEEDING_LEFT_NIPPLE))
-        }
-        findViewById<View>(R.id.button_nipple_both).setOnClickListener {
-            addPlainEvent(LunaEvent(LunaEvent.TYPE_BREASTFEEDING_BOTH_NIPPLE))
-        }
-        findViewById<View>(R.id.button_nipple_right).setOnClickListener {
-            addPlainEvent(LunaEvent(LunaEvent.TYPE_BREASTFEEDING_RIGHT_NIPPLE))
-        }
-        findViewById<View>(R.id.button_change_poo).setOnClickListener {
-            addAmountEvent(LunaEvent(LunaEvent.TYPE_DIAPERCHANGE_POO))
-        }
-        findViewById<View>(R.id.button_change_pee).setOnClickListener {
-            addAmountEvent(LunaEvent(LunaEvent.TYPE_DIAPERCHANGE_PEE))
-        }
+
         val moreButton = findViewById<View>(R.id.button_more)
         moreButton.setOnClickListener {
             showOverflowPopupWindow(moreButton)
@@ -120,7 +108,11 @@ class MainActivity : AppCompatActivity() {
             loadLogbookList()
         }
         findViewById<View>(R.id.button_sync).setOnClickListener {
-            loadLogbookList()
+            if (logbook != null) {
+                loadLogbook(logbook!!.name)
+            } else {
+                loadLogbookList()
+            }
         }
     }
 
@@ -144,7 +136,86 @@ class MainActivity : AppCompatActivity() {
         if (logbook == null)
             Log.w(TAG, "showLogbook(): logbook is null!")
 
-        setListAdapter(logbook?.logs ?: arrayListOf())
+        allEvents = logbook?.logs ?: arrayListOf()
+        setListAdapter(allEvents)
+
+        populateHeaderMenu()
+    }
+
+    private fun populateHeaderMenu() {
+        val settingsRepository = LocalSettingsRepository(this)
+        val dynamicMenu = settingsRepository.loadDynamicMenu()
+        val eventTypeStats = mutableMapOf<LunaEvent.Type, Int>()
+
+        if (dynamicMenu) {
+            // populate frequency map from all events of the last two weeks
+            val lastWeekTime = (System.currentTimeMillis() / 1000) - (14 * 24 * 60 * 60)
+            allEvents.forEach {
+                if (it.time > lastWeekTime) {
+                    eventTypeStats[it.type] = 1 + (eventTypeStats[it.type] ?: 0)
+                }
+            }
+        }
+
+        // sort all event types by frequency and ordinal
+        val eventTypesSorted = LunaEvent.Type.entries.toList().sortedWith(
+            compareBy({ -1 * (eventTypeStats[it] ?: 0) }, { it.ordinal })
+        ).filter { it != LunaEvent.Type.UNKNOWN }
+
+        fun setupMenu(maxButtonCount: Int, sortedEventTypes: List<LunaEvent.Type>): Int {
+            val row1 = findViewById<View>(R.id.linear_layout_row1)
+            val row1Button1 = findViewById<TextView>(R.id.button1_row1)
+            val row1Button2 = findViewById<TextView>(R.id.button2_row1)
+
+            val row2 = findViewById<View>(R.id.linear_layout_row2)
+            val row2Button1 = findViewById<TextView>(R.id.button1_row2)
+            val row2Button2 = findViewById<TextView>(R.id.button2_row2)
+            val row2Button3 = findViewById<TextView>(R.id.button3_row2)
+
+            val row3 = findViewById<View>(R.id.linear_layout_row3)
+            val row3Button1 = findViewById<TextView>(R.id.button1_row3)
+            val row3Button2 = findViewById<TextView>(R.id.button2_row3)
+
+            // hide all rows/buttons (except row 3)
+            for (view in listOf(row1, row1Button1, row1Button2,
+                                row2, row2Button1, row2Button2, row2Button3,
+                                row3, row3Button1, row3Button2)) {
+                view.visibility = View.GONE
+            }
+            row3.visibility = View.VISIBLE
+
+            var showCounter = 0
+
+            fun show(vararg tvs: TextView) {
+                for (tv in tvs) {
+                    val type = sortedEventTypes[showCounter]
+                    tv.text = LunaEvent.getHeaderEmoji(applicationContext, type)
+                    tv.setOnClickListener { showCreateDialog(type) }
+                    tv.visibility = View.VISIBLE
+                    // show parent row
+                    (tv.parent as View).visibility = View.VISIBLE
+                    showCounter += 1
+                }
+            }
+
+            when (maxButtonCount) {
+                0 -> { } // ignore - show empty row3
+                1 -> show(row3Button1)
+                2 -> show(row3Button1, row3Button2)
+                3 -> show(row1Button1, row3Button1)
+                4, 5, 6 -> show(row1Button1, row1Button2, row3Button1, row3Button2)
+                else -> show(row1Button1, row1Button2, row2Button1, row2Button2, row2Button3, row3Button1, row3Button2)
+            }
+
+            return showCounter
+        }
+
+        val usedEventCount = eventTypeStats.count { it.value > 0 }
+        val maxButtonCount = if (dynamicMenu) { usedEventCount } else { 7 }
+        val eventsShown = setupMenu(maxButtonCount, eventTypesSorted)
+
+        // store left over events for popup menu
+        currentPopupItems = eventTypesSorted.subList(eventsShown, eventTypesSorted.size)
     }
 
     override fun onStart() {
@@ -167,12 +238,6 @@ class MainActivity : AppCompatActivity() {
 
         signature = settingsRepository.loadSignature()
 
-        val noBreastfeeding = settingsRepository.loadNoBreastfeeding()
-        findViewById<View>(R.id.layout_nipples).visibility = when (noBreastfeeding) {
-            true -> View.GONE
-            false -> View.VISIBLE
-        }
-
         // Update list dates
         recyclerView.adapter?.notifyDataSetChanged()
 
@@ -191,10 +256,6 @@ class MainActivity : AppCompatActivity() {
         super.onStop()
     }
 
-    fun getAllEvents(): ArrayList<LunaEvent> {
-        return logbook?.logs ?: arrayListOf()
-    }
-
     fun addBabyBottleEvent(event: LunaEvent) {
         setToPreviousQuantity(event)
         askBabyBottleContent(event, true) {
@@ -205,19 +266,19 @@ class MainActivity : AppCompatActivity() {
     fun askBabyBottleContent(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_bottle, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
         val numberPicker = dialogView.findViewById<NumberPicker>(R.id.dialog_number_picker)
         numberPicker.minValue = 1 // "10"
-        numberPicker.maxValue = 25 // "250
-        numberPicker.displayedValues = ((10..250 step 10).map { it.toString() }.toTypedArray())
+        numberPicker.maxValue = 34 // "340
+        numberPicker.displayedValues = ((10..340 step 10).map { it.toString() }.toTypedArray())
         numberPicker.wrapSelectorWheel = false
         numberPicker.value = event.quantity / 10
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -247,7 +308,7 @@ class MainActivity : AppCompatActivity() {
         // Show number picker dialog
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_weight, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
@@ -255,7 +316,7 @@ class MainActivity : AppCompatActivity() {
         weightET.setText(event.quantity.toString())
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -291,12 +352,12 @@ class MainActivity : AppCompatActivity() {
         // Show number picker dialog
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_temperature, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
         val tempSlider = dialogView.findViewById<Slider>(R.id.dialog_temperature_value)
-        val range = NumericUtils(this).getValidEventQuantityRange(LunaEvent.TYPE_TEMPERATURE)!!
+        val range = NumericUtils(this).getValidEventQuantityRange(LunaEvent.Type.TEMPERATURE)!!
         tempSlider.valueFrom = range.first.toFloat()
         tempSlider.valueTo = range.second.toFloat()
         tempSlider.value = if (event.quantity == 0) {
@@ -306,7 +367,7 @@ class MainActivity : AppCompatActivity() {
         }
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -330,7 +391,8 @@ class MainActivity : AppCompatActivity() {
         alertDialog.show()
     }
 
-    fun datePickerHelper(time: Long, dateTextView: TextView): Calendar {
+    // Pick a date/time.
+    fun dateTimePicker(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
         dateTextView.text = DateUtils.formatDateTime(time)
 
         val dateTime = Calendar.getInstance()
@@ -349,6 +411,7 @@ class MainActivity : AppCompatActivity() {
                     { _, hour, minute ->
                         dateTime.set(year, month, day, hour, minute)
                         dateTextView.text = DateUtils.formatDateTime(dateTime.time.time / 1000)
+                        onChange.invoke(dateTime.time.time / 1000)
                     },
                     startHour,
                     startMinute,
@@ -360,25 +423,145 @@ class MainActivity : AppCompatActivity() {
         return dateTime
     }
 
-    fun saveEvent(event: LunaEvent) {
-        if (!getAllEvents().contains(event)) {
-            // new event
-            logEvent(event)
+    fun addSleepEvent(event: LunaEvent) {
+        askSleepValue(event, true) { saveEvent(event) }
+    }
+
+    fun askSleepValue(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
+        val d = AlertDialog.Builder(this)
+        val dialogView = layoutInflater.inflate(R.layout.dialog_edit_duration, null)
+        d.setTitle(event.getDialogTitle(this))
+        d.setView(dialogView)
+
+        val durationTextView = dialogView.findViewById<TextView>(R.id.dialog_date_duration)
+        val datePickerBegin = dialogView.findViewById<TextView>(R.id.dialog_date_picker_begin)
+        val datePickerEnd = dialogView.findViewById<TextView>(R.id.dialog_date_picker_end)
+        val dateDelimiter = dialogView.findViewById<TextView>(R.id.dialog_date_range_delimiter)
+        val durationButtons = dialogView.findViewById<LinearLayout>(R.id.duration_buttons)
+        val durationNowButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_now)
+        val durationAsleepButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_asleep)
+        val durationMinus5Button = dialogView.findViewById<Button>(R.id.dialog_date_duration_minus5)
+        val durationPlus5Button = dialogView.findViewById<Button>(R.id.dialog_date_duration_plus5)
+
+        val currentDurationTextColor = durationTextView.currentTextColor
+        val invalidDurationTextColor = ContextCompat.getColor(this, R.color.danger)
+
+        // in seconds
+        var sleepBegin = event.time
+        var sleepEnd = event.time + event.quantity
+
+        fun isValidTime(timeUnix: Long): Boolean {
+            val now = System.currentTimeMillis() / 1000
+            return timeUnix in 1..now
         }
 
-        logbook?.sort()
-        recyclerView.adapter?.notifyDataSetChanged()
-        saveLogbook()
+        fun isValidTimeSpan(timeBeginUnix: Long, timeEndUnix: Long): Boolean {
+            return (timeBeginUnix <= timeEndUnix) && (timeEndUnix - timeBeginUnix) < (24 * 60 * 60)
+        }
+
+        // prevent printing of seconds
+        fun adjustToMinute(unixTime: Long): Long {
+            return unixTime - (unixTime % 60)
+        }
+
+        fun updateFields() {
+            datePickerBegin.text = DateUtils.formatDateTime(sleepBegin)
+            datePickerEnd.text = DateUtils.formatDateTime(sleepEnd)
+
+            durationTextView.setTextColor(currentDurationTextColor)
+            val duration = sleepEnd - sleepBegin
+            if (duration == 0L) {
+                // baby is sleeping
+                durationTextView.text = "💤"
+            } else {
+                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration)
+                if (!isValidTimeSpan(sleepBegin, sleepEnd)) {
+                    durationTextView.setTextColor(invalidDurationTextColor)
+                }
+            }
+
+            datePickerBegin.setTextColor(if (isValidTime(sleepBegin)) { currentDurationTextColor } else { invalidDurationTextColor })
+            datePickerEnd.setTextColor(if (isValidTime(sleepEnd)) { currentDurationTextColor } else { invalidDurationTextColor })
+        }
+
+        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { time: Long ->
+            sleepBegin = adjustToMinute(time)
+            updateFields()
+        }
+
+        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { time: Long ->
+            sleepEnd = adjustToMinute(time)
+            updateFields()
+        }
+
+        sleepBegin = adjustToMinute(pickedDateTimeBegin.time.time / 1000)
+        sleepEnd = adjustToMinute(pickedDateTimeEnd.time.time / 1000)
+
+        updateFields()
+
+        if (showTime) {
+            dateDelimiter.visibility = View.GONE
+            datePickerEnd.visibility = View.GONE
+            durationTextView.visibility = View.GONE
+            durationButtons.visibility = View.GONE
+            //d.setMessage("")
+        } else {
+            dateDelimiter.visibility = View.VISIBLE
+            datePickerEnd.visibility = View.VISIBLE
+            durationTextView.visibility = View.VISIBLE
+            durationButtons.visibility = View.VISIBLE
+            d.setMessage(event.getDialogMessage(this))
+        }
+
+        durationMinus5Button.setOnClickListener {
+            sleepEnd = (sleepEnd - 300).coerceAtLeast(sleepBegin)
+            updateFields()
+        }
+
+        durationPlus5Button.setOnClickListener {
+            sleepEnd = (sleepEnd + 300).coerceAtLeast(sleepBegin)
+            updateFields()
+        }
+
+        durationAsleepButton.setOnClickListener {
+            sleepEnd = sleepBegin
+            updateFields()
+        }
+
+        durationNowButton.setOnClickListener {
+            val now = System.currentTimeMillis() / 1000
+            sleepEnd = adjustToMinute(now)
+            updateFields()
+        }
+
+        d.setPositiveButton(android.R.string.ok) { dialogInterface, i ->
+            if (isValidTime(sleepBegin) && isValidTime(sleepEnd) && isValidTimeSpan(sleepBegin, sleepEnd)) {
+                event.time = sleepBegin
+                event.quantity = (sleepEnd - sleepBegin).toInt()
+                onPositive()
+            } else {
+                Toast.makeText(this, R.string.toast_date_error, Toast.LENGTH_SHORT).show()
+            }
+            dialogInterface.dismiss()
+        }
+
+        d.setNegativeButton(android.R.string.cancel) { dialogInterface, i ->
+            dialogInterface.dismiss()
+        }
+
+        val alertDialog = d.create()
+        alertDialog.show()
     }
 
     fun addAmountEvent(event: LunaEvent) {
+        setToPreviousQuantity(event)
         askAmountValue(event, true) { saveEvent(event) }
     }
 
     fun askAmountValue(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_amount, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
@@ -388,11 +571,11 @@ class MainActivity : AppCompatActivity() {
             R.array.AmountLabels,
             android.R.layout.simple_spinner_dropdown_item
         )
-        // set pre-selected item and ensure the quantity to index is in bounds
+
         spinner.setSelection(event.quantity.coerceIn(0, spinner.count - 1))
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -420,12 +603,12 @@ class MainActivity : AppCompatActivity() {
     fun askDateValue(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_plain, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedDateTime = datePickerHelper(event.time, dateTV)
+        val pickedDateTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -449,18 +632,18 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun askNotes(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
-        val useQuantity = (event.type != LunaEvent.TYPE_NOTE && event.type != LunaEvent.TYPE_CUSTOM)
+        val useQuantity = (event.type != LunaEvent.Type.NOTE)
 
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_notes, null)
-        d.setTitle(event.getTypeDescription(this))
+        d.setTitle(event.getDialogTitle(this))
         d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
         val notesET = dialogView.findViewById<EditText>(R.id.notes_edittext)
         val qtyET = dialogView.findViewById<EditText>(R.id.notes_qty_edittext)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -468,11 +651,11 @@ class MainActivity : AppCompatActivity() {
 
         val nextTextView = dialogView.findViewById<TextView>(R.id.notes_template_next)
         val prevTextView = dialogView.findViewById<TextView>(R.id.notes_template_prev)
+        val templates = allEvents.filter { it.type == event.type }.distinctBy { it.notes }.sortedBy { it.time }
 
         fun updateContent(current: LunaEvent) {
-            val allEvents = getAllEvents()
-            val prevEvent = getPreviousSameEvent(current, allEvents)
-            var nextEvent = getNextSameEvent(current, allEvents)
+            val prevEvent = getPreviousSameEvent(current, templates)
+            var nextEvent = getNextSameEvent(current, templates)
 
             notesET.setText(current.notes)
             if (useQuantity) {
@@ -523,7 +706,7 @@ class MainActivity : AppCompatActivity() {
         updateContent(event)
 
         d.setPositiveButton(android.R.string.ok) { dialogInterface, i ->
-            val notes = notesET.text.toString()
+            val notes = notesET.text.toString().trim()
 
             if (useQuantity) {
                 val quantity = qtyET.text.toString().toIntOrNull()
@@ -574,13 +757,13 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun setToPreviousQuantity(event: LunaEvent) {
-        val prev = getPreviousSameEvent(event, getAllEvents())
+        val prev = getPreviousSameEvent(event, allEvents)
         if (prev != null) {
             event.quantity = prev.quantity
         }
     }
 
-    fun getPreviousSameEvent(event: LunaEvent, items: ArrayList<LunaEvent>): LunaEvent? {
+    fun getPreviousSameEvent(event: LunaEvent, items: List<LunaEvent>): LunaEvent? {
         var previousEvent: LunaEvent? = null
         for (item in items) {
             if (item.type == event.type && item.time < event.time) {
@@ -594,7 +777,7 @@ class MainActivity : AppCompatActivity() {
         return previousEvent
     }
 
-    fun getNextSameEvent(event: LunaEvent, items: ArrayList<LunaEvent>): LunaEvent? {
+    fun getNextSameEvent(event: LunaEvent, items: List<LunaEvent>): LunaEvent? {
         var nextEvent: LunaEvent? = null
         for (item in items) {
             if (item.type == event.type && item.time > event.time) {
@@ -611,6 +794,12 @@ class MainActivity : AppCompatActivity() {
     fun showEventDetailDialog(originalEvent: LunaEvent) {
         val event = LunaEvent(originalEvent)
 
+        fun eventValuesChanged(): Boolean {
+            return (event.time != originalEvent.time
+                || event.quantity != originalEvent.quantity
+                || event.notes != originalEvent.notes)
+        }
+
         // Do not update list while the detail is shown, to avoid changing the object below while it is changed by the user
         pauseLogbookUpdate = true
 
@@ -621,38 +810,12 @@ class MainActivity : AppCompatActivity() {
         val emojiTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_emoji)
         val descriptionTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_description)
         val dateTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_date)
+        val dateEndTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_date_end)
         val quantityTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_quantity)
         val notesTextView = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_notes)
 
-        emojiTextView.text = event.getTypeEmoji(this)
-        descriptionTextView.text = event.getTypeDescription(this)
-
-        val pickedTime = datePickerHelper(event.time, dateTextView)
-        val updateValues = {
-            quantityTextView.text = NumericUtils(this).formatEventQuantity(event)
-            notesTextView.text = event.notes
-        }
-        updateValues()
-
-        quantityTextView.setOnClickListener {
-            when (event.type) {
-                LunaEvent.TYPE_BABY_BOTTLE -> askBabyBottleContent(event, false, updateValues)
-                LunaEvent.TYPE_WEIGHT -> askWeightValue(event, false, updateValues)
-                LunaEvent.TYPE_DIAPERCHANGE_POO,
-                LunaEvent.TYPE_DIAPERCHANGE_PEE,
-                LunaEvent.TYPE_PUKE -> askAmountValue(event, false, updateValues)
-                LunaEvent.TYPE_TEMPERATURE -> askTemperatureValue(event, false, updateValues)
-                LunaEvent.TYPE_NOTE -> askNotes(event, false, updateValues)
-            }
-        }
-
-        notesTextView.setOnClickListener {
-            when (event.type) {
-                LunaEvent.TYPE_FOOD,
-                LunaEvent.TYPE_MEDICINE,
-                LunaEvent.TYPE_NOTE -> askNotes(event, false, updateValues)
-            }
-        }
+        emojiTextView.text = event.getHeaderEmoji(this)
+        descriptionTextView.text = event.getDialogTitle(this)
 
         d.setView(dialogView)
 
@@ -661,12 +824,8 @@ class MainActivity : AppCompatActivity() {
             dialogInterface.dismiss()
         }
 
-        d.setPositiveButton(R.string.dialog_event_detail_close_button) { dialogInterface, i ->
-            event.time = pickedTime.time.time / 1000
-
-            if (event.time != originalEvent.time
-                    || event.quantity != originalEvent.quantity
-                    || event.notes != originalEvent.notes) {
+        d.setNegativeButton(R.string.dialog_event_detail_save_button) { dialogInterface, i ->
+            if (eventValuesChanged()) {
                 originalEvent.time = event.time
                 originalEvent.quantity = event.quantity
                 originalEvent.notes = event.notes
@@ -676,6 +835,10 @@ class MainActivity : AppCompatActivity() {
             dialogInterface.dismiss()
         }
 
+        d.setPositiveButton(R.string.dialog_event_detail_close_button) { dialogInterface, i ->
+            dialogInterface.dismiss()
+        }
+
         val alertDialog = d.create()
         alertDialog.show()
 
@@ -688,6 +851,56 @@ class MainActivity : AppCompatActivity() {
             pauseLogbookUpdate = false
         }
 
+        val updateValues = {
+            quantityTextView.text = NumericUtils(this).formatEventQuantity(event)
+            notesTextView.text = event.notes
+            if (event.type == LunaEvent.Type.SLEEP && event.quantity > 0) {
+                dateEndTextView.text = DateUtils.formatDateTime(event.getEndTime())
+                dateEndTextView.visibility = View.VISIBLE
+            } else {
+                dateEndTextView.visibility = View.GONE
+            }
+
+            alertDialog.getButton(DialogInterface.BUTTON_NEGATIVE).visibility = if (eventValuesChanged()) {
+                View.VISIBLE
+            } else {
+                View.GONE
+            }
+        }
+        updateValues()
+
+        dateTimePicker(event.time, dateTextView, { newTime: Long ->
+            event.time = newTime
+            updateValues()
+        })
+
+        quantityTextView.setOnClickListener {
+            when (event.type) {
+                LunaEvent.Type.BABY_BOTTLE -> askBabyBottleContent(event, false, updateValues)
+                LunaEvent.Type.WEIGHT -> askWeightValue(event, false, updateValues)
+                LunaEvent.Type.DIAPERCHANGE_POO,
+                LunaEvent.Type.DIAPERCHANGE_PEE,
+                LunaEvent.Type.PUKE -> askAmountValue(event, false, updateValues)
+                LunaEvent.Type.TEMPERATURE -> askTemperatureValue(event, false, updateValues)
+                LunaEvent.Type.NOTE -> askNotes(event, false, updateValues)
+                LunaEvent.Type.SLEEP -> askSleepValue(event, false, updateValues)
+                else -> {
+                    Log.w(TAG, "Unexpected type: ${event.type}")
+                }
+            }
+        }
+
+        notesTextView.setOnClickListener {
+            when (event.type) {
+                LunaEvent.Type.FOOD,
+                LunaEvent.Type.MEDICINE,
+                LunaEvent.Type.NOTE -> askNotes(event, false, updateValues)
+                else -> {
+                    Log.w(TAG, "Unexpected type: ${event.type}")
+                }
+            }
+        }
+
         // show optional signature
         if (event.signature.isNotEmpty()) {
             val signatureTextEdit = dialogView.findViewById<TextView>(R.id.dialog_event_detail_type_signature)
@@ -695,14 +908,12 @@ class MainActivity : AppCompatActivity() {
             signatureTextEdit.visibility = View.VISIBLE
         }
 
-        val allEvents = getAllEvents()
-
         // create link to prevent event of the same type
         val previousTextView = dialogView.findViewById<TextView>(R.id.dialog_event_previous)
         val previousEvent = getPreviousSameEvent(event, allEvents)
         if (previousEvent != null) {
-            val emoji = previousEvent.getTypeEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, event.time - previousEvent.time)
+            val emoji = previousEvent.getHeaderEmoji(applicationContext)
+            val time = DateUtils.formatTimeDuration(applicationContext, event.getStartTime() - previousEvent.getEndTime())
             previousTextView.text = String.format("⬅️ %s %s", emoji, time)
             previousTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -716,8 +927,8 @@ class MainActivity : AppCompatActivity() {
         val nextTextView = dialogView.findViewById<TextView>(R.id.dialog_event_next)
         val nextEvent = getNextSameEvent(event, allEvents)
         if (nextEvent != null) {
-            val emoji = nextEvent.getTypeEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.time - event.time)
+            val emoji = nextEvent.getHeaderEmoji(applicationContext)
+            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.getStartTime() - event.getEndTime())
             nextTextView.text = String.format("%s %s ➡️", time, emoji)
             nextTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -887,7 +1098,7 @@ class MainActivity : AppCompatActivity() {
 
                     if (DEBUG_CHECK_LOGBOOK_CONSISTENCY) {
                         for (e in logbook?.logs ?: listOf()) {
-                            val em = e.getTypeEmoji(this@MainActivity)
+                            val em = e.getHeaderEmoji(this@MainActivity)
                             if (em == getString(R.string.event_unknown_type)) {
                                 Log.e(TAG, "UNKNOWN: ${e.type}")
                             }
@@ -942,23 +1153,6 @@ class MainActivity : AppCompatActivity() {
         })
     }
 
-    fun logEvent(event: LunaEvent) {
-        savingEvent(true)
-
-        event.signature = signature
-
-        setLoading(true)
-        logbook?.logs?.add(0, event)
-        recyclerView.adapter?.notifyItemInserted(0)
-        recyclerView.smoothScrollToPosition(0)
-        saveLogbook(event)
-
-        // Check logbook size to avoid OOM errors
-        if (logbook?.isTooBig() == true) {
-            askToTrimLogbook()
-        }
-    }
-
     fun deleteEvent(event: LunaEvent) {
         // Update view
         savingEvent(true)
@@ -970,6 +1164,32 @@ class MainActivity : AppCompatActivity() {
         saveLogbook()
     }
 
+    fun saveEvent(event: LunaEvent) {
+        if (allEvents.contains(event)) {
+            // event was modified
+            logbook?.sort()
+            recyclerView.adapter?.notifyDataSetChanged()
+            saveLogbook()
+        } else {
+            // add new event
+            savingEvent(true)
+            setLoading(true)
+            if (signature.isNotEmpty()) {
+                event.signature = signature
+            }
+            logbook?.logs?.add(0, event)
+            logbook?.sort()
+            recyclerView.adapter?.notifyDataSetChanged()
+            recyclerView.smoothScrollToPosition(0)
+            saveLogbook(event)
+
+            // Check logbook size to avoid OOM errors
+            if (logbook?.isTooBig() == true) {
+                askToTrimLogbook()
+            }
+        }
+    }
+
     /**
      * Saves the logbook. If saving while adding an event, please specify the event so in case
      * of error can be removed from the list.
@@ -1072,6 +1292,29 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
+    private fun showCreateDialog(type: LunaEvent.Type) {
+        val event = LunaEvent(type)
+        when (type) {
+            LunaEvent.Type.BABY_BOTTLE -> addBabyBottleEvent(event)
+            LunaEvent.Type.WEIGHT -> addWeightEvent(event)
+            LunaEvent.Type.BREASTFEEDING_LEFT_NIPPLE -> addPlainEvent(event)
+            LunaEvent.Type.BREASTFEEDING_BOTH_NIPPLE -> addPlainEvent(event)
+            LunaEvent.Type.BREASTFEEDING_RIGHT_NIPPLE -> addPlainEvent(event)
+            LunaEvent.Type.DIAPERCHANGE_POO -> addAmountEvent(event)
+            LunaEvent.Type.DIAPERCHANGE_PEE -> addAmountEvent(event)
+            LunaEvent.Type.MEDICINE -> addNoteEvent(event)
+            LunaEvent.Type.ENEMA -> addNoteEvent(event)
+            LunaEvent.Type.NOTE -> addNoteEvent(event)
+            LunaEvent.Type.COLIC -> addPlainEvent(event)
+            LunaEvent.Type.TEMPERATURE -> addTemperatureEvent(event)
+            LunaEvent.Type.FOOD -> addNoteEvent(event)
+            LunaEvent.Type.PUKE -> addAmountEvent(event)
+            LunaEvent.Type.BATH -> addPlainEvent(event)
+            LunaEvent.Type.SLEEP -> addSleepEvent(event)
+            LunaEvent.Type.UNKNOWN -> {} // ignore
+        }
+    }
+
     private fun showOverflowPopupWindow(anchor: View) {
         if (showingOverflowPopupWindow)
             return
@@ -1080,37 +1323,31 @@ class MainActivity : AppCompatActivity() {
             isOutsideTouchable = true
             val inflater = LayoutInflater.from(anchor.context)
             contentView = inflater.inflate(R.layout.more_events_popup, null)
-            contentView.findViewById<View>(R.id.button_medicine).setOnClickListener {
-                addNoteEvent(LunaEvent(LunaEvent.TYPE_MEDICINE))
+
+            // Add statistics (hard coded)
+            contentView.findViewById<View>(R.id.button_statistics).setOnClickListener {
+                if (logbook != null && !pauseLogbookUpdate) {
+                    val i = Intent(applicationContext, StatisticsActivity::class.java)
+                    i.putExtra("LOOGBOOK_NAME", logbook!!.name)
+                    startActivity(i)
+                } else {
+                    Toast.makeText(applicationContext, "No logbook selected!", Toast.LENGTH_SHORT).show()
+                }
                 dismiss()
             }
-            contentView.findViewById<View>(R.id.button_enema).setOnClickListener {
-                addPlainEvent(LunaEvent(LunaEvent.TYPE_ENEMA))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_note).setOnClickListener {
-                addNoteEvent(LunaEvent(LunaEvent.TYPE_NOTE))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_temperature).setOnClickListener {
-                addTemperatureEvent(LunaEvent(LunaEvent.TYPE_TEMPERATURE))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_puke).setOnClickListener {
-                addAmountEvent(LunaEvent(LunaEvent.TYPE_PUKE))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_colic).setOnClickListener {
-                addPlainEvent(LunaEvent(LunaEvent.TYPE_COLIC))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_scale).setOnClickListener {
-                addWeightEvent(LunaEvent(LunaEvent.TYPE_WEIGHT))
-                dismiss()
-            }
-            contentView.findViewById<View>(R.id.button_bath).setOnClickListener {
-                addPlainEvent(LunaEvent(LunaEvent.TYPE_BATH))
-                dismiss()
+
+            val linearLayout = contentView.findViewById<LinearLayout>(R.id.layout_list)
+
+            // Add buttons to create other events
+            for (type in currentPopupItems) {
+                val view = layoutInflater.inflate(R.layout.more_events_popup_item, linearLayout, false)
+                val textView = view.findViewById<TextView>(R.id.tv)
+                textView.text = LunaEvent.getPopupItemTitle(applicationContext, type)
+                textView.setOnClickListener {
+                    showCreateDialog(type)
+                    dismiss()
+                }
+                linearLayout.addView(textView)
             }
         }.also { popupWindow ->
             popupWindow.setOnDismissListener({

app/src/main/java/it/danieleverducci/lunatracker/SettingsActivity.kt

@@ -4,6 +4,7 @@ import android.os.Bundle
 import android.view.View
 import android.widget.EditText
 import android.widget.RadioButton
+import android.widget.Spinner
 import android.widget.TextView
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
@@ -24,7 +25,7 @@ open class SettingsActivity : AppCompatActivity() {
     protected lateinit var textViewWebDAVUser: TextView
     protected lateinit var textViewWebDAVPass: TextView
     protected lateinit var progressIndicator: LinearProgressIndicator
-    protected lateinit var switchNoBreastfeeding: SwitchMaterial
+    protected lateinit var switchDynamicMenu: SwitchMaterial
     protected lateinit var textViewSignature: EditText
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -37,7 +38,7 @@ open class SettingsActivity : AppCompatActivity() {
         textViewWebDAVUser = findViewById(R.id.settings_data_webdav_user)
         textViewWebDAVPass = findViewById(R.id.settings_data_webdav_pass)
         progressIndicator = findViewById(R.id.progress_indicator)
-        switchNoBreastfeeding = findViewById(R.id.switch_no_breastfeeding)
+        switchDynamicMenu = findViewById(R.id.switch_dynamic_menu)
         textViewSignature = findViewById(R.id.settings_signature)
 
         findViewById<View>(R.id.settings_save).setOnClickListener({
@@ -54,7 +55,7 @@ open class SettingsActivity : AppCompatActivity() {
     fun loadSettings() {
         val dataRepo = settingsRepository.loadDataRepository()
         val webDavCredentials = settingsRepository.loadWebdavCredentials()
-        val noBreastfeeding = settingsRepository.loadNoBreastfeeding()
+        val dynamicMenu = settingsRepository.loadDynamicMenu()
         val signature = settingsRepository.loadSignature()
 
         when (dataRepo) {
@@ -63,7 +64,7 @@ open class SettingsActivity : AppCompatActivity() {
         }
 
         textViewSignature.setText(signature)
-        switchNoBreastfeeding.isChecked = noBreastfeeding
+        switchDynamicMenu.isChecked = dynamicMenu
 
         if (webDavCredentials != null) {
             textViewWebDAVUrl.text = webDavCredentials[0]
@@ -160,7 +161,7 @@ open class SettingsActivity : AppCompatActivity() {
             if (radioDataWebDAV.isChecked) LocalSettingsRepository.DATA_REPO.WEBDAV
             else LocalSettingsRepository.DATA_REPO.LOCAL_FILE
         )
-        settingsRepository.saveNoBreastfeeding(switchNoBreastfeeding.isChecked)
+        settingsRepository.saveDynamicMenu(switchDynamicMenu.isChecked)
         settingsRepository.saveSignature(textViewSignature.text.toString())
         settingsRepository.saveWebdavCredentials(
             textViewWebDAVUrl.text.toString(),

app/src/main/java/it/danieleverducci/lunatracker/StatisticsActivity.kt

@@ -0,0 +1,907 @@
+package it.danieleverducci.lunatracker
+
+import android.graphics.Canvas
+import android.graphics.Color
+import android.os.Bundle
+import android.util.Log
+import android.view.View
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import android.widget.Spinner
+import android.widget.TextView
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.graphics.toColorInt
+import com.github.mikephil.charting.animation.ChartAnimator
+import com.github.mikephil.charting.charts.BarChart
+import com.github.mikephil.charting.components.YAxis
+import com.github.mikephil.charting.data.BarData
+import com.github.mikephil.charting.data.BarDataSet
+import com.github.mikephil.charting.data.BarEntry
+import com.github.mikephil.charting.data.Entry
+import com.github.mikephil.charting.formatter.ValueFormatter
+import com.github.mikephil.charting.highlight.Highlight
+import com.github.mikephil.charting.interfaces.dataprovider.BarDataProvider
+import com.github.mikephil.charting.listener.OnChartValueSelectedListener
+import com.github.mikephil.charting.renderer.HorizontalBarChartRenderer
+import com.github.mikephil.charting.utils.ViewPortHandler
+import it.danieleverducci.lunatracker.entities.LunaEvent
+import utils.DateUtils
+import utils.NumericUtils
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.Date
+import java.util.Locale
+import kotlin.math.max
+import kotlin.math.min
+
+class StatisticsActivity : AppCompatActivity() {
+    var lastToastShown = 0L
+
+    lateinit var barChart: BarChart
+    lateinit var noDataTextView: TextView
+    lateinit var graphTypeSpinner: Spinner
+    lateinit var timeRangeSpinner: Spinner
+
+    lateinit var unixToSpan: (Long) -> Int
+    lateinit var spanToUnix: (Int) -> Long
+
+    enum class GraphType {
+        BOTTLE_EVENTS,
+        BOTTLE_SUM,
+        SLEEP_SUM,
+        SLEEP_EVENTS,
+        SLEEP_PATTERN
+    }
+
+    enum class TimeRange {
+        DAY,
+        WEEK,
+        MONTH
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContentView(R.layout.activity_statistics)
+
+        val logbookName = intent.getStringExtra("LOOGBOOK_NAME")
+        if (logbookName == null) {
+            finish()
+            return
+        }
+
+        noDataTextView = findViewById(R.id.no_data)
+
+        barChart = findViewById(R.id.bar_chart)
+        barChart.setBackgroundColor(Color.WHITE)
+        barChart.description.text = logbookName
+        barChart.setDrawValueAboveBar(false)
+
+        barChart.axisLeft.setAxisMinimum(0F)
+        barChart.axisLeft.setDrawGridLines(false)
+        barChart.axisLeft.setDrawLabels(false)
+
+        barChart.axisRight.setDrawGridLines(false)
+        barChart.axisRight.setDrawLabels(false)
+
+        barChart.xAxis.setDrawLabels(true)
+        barChart.xAxis.setDrawAxisLine(false)
+
+        barChart.isScaleXEnabled = false
+        barChart.isScaleYEnabled = true
+
+        graphTypeSpinner = findViewById(R.id.graph_type_selection)
+        timeRangeSpinner = findViewById(R.id.time_range_selection)
+
+        setupSpinner(graphTypeSelection.name,
+            R.id.graph_type_selection,
+            R.array.StatisticsTypeLabels,
+            R.array.StatisticsTypeValues,
+            object : SpinnerItemSelected {
+                override fun call(newValue: String?) {
+                    //Log.d("event", "new value: $newValue")
+                    newValue ?: return
+                    graphTypeSelection = GraphType.valueOf(newValue)
+                    showGraph()
+                }
+            }
+        )
+
+        setupSpinner(timeRangeSelection.name,
+            R.id.time_range_selection,
+            R.array.StatisticsTimeLabels,
+            R.array.StatisticsTimeValues,
+            object : SpinnerItemSelected {
+                override fun call(newValue: String?) {
+                    //Log.d("event", "new value: $newValue")
+                    newValue ?: return
+                    timeRangeSelection = TimeRange.valueOf(newValue)
+                    setSpans()
+                    showGraph()
+                }
+            }
+        )
+
+        setSpans()
+        showGraph()
+    }
+
+    fun setSpans() {
+        unixToSpan  = when (timeRangeSelection) {
+            TimeRange.DAY -> { unix: Long -> unixToDays(unix) }
+            TimeRange.WEEK -> { unix: Long -> unixToWeeks(unix) }
+            TimeRange.MONTH -> { unix: Long -> unixToMonths(unix) }
+        }
+
+        spanToUnix = when (timeRangeSelection) {
+            TimeRange.DAY -> { span: Int -> daysToUnix(span) }
+            TimeRange.WEEK -> { span: Int -> weeksToUnix(span) }
+            TimeRange.MONTH -> { span: Int -> monthsToUnix(span) }
+        }
+    }
+
+    data class SleepRange(val start: Long, var end: Long)
+
+    fun toSleepRanges(events: List<LunaEvent>): ArrayList<SleepRange> {
+        val ranges = arrayListOf<SleepRange>()
+        val now = System.currentTimeMillis() / 1000
+
+        // Transform events into time ranges.
+        // Merge overlapping times and extend
+        // ongoing sleep events until now.
+        var warningShown = false
+        for (event in events) {
+            val startTime = event.time
+            val endTime = if (event.quantity == 0) {
+                now
+            } else {
+                event.time + event.quantity
+            }
+
+            // handle overlap
+            val previousRange = ranges.lastOrNull()
+            if (previousRange != null && previousRange.end > startTime) {
+                // cap previous range to avoid overlap
+                previousRange.end = startTime
+                if (!warningShown) {
+                    Toast.makeText(applicationContext, "Overlapping sleep event at ${DateUtils.formatDateTime(startTime)}", Toast.LENGTH_SHORT).show()
+                    warningShown = true
+                }
+            }
+
+            ranges.add(SleepRange(startTime, endTime))
+        }
+
+        return ranges
+    }
+
+    fun showSleepPatternBarGraphSlotted(state: GraphState) {
+        val ranges = toSleepRanges(state.events)
+        val values = ArrayList<BarEntry>()
+        val stack = ArrayList(List(state.endSpan - state.startSpan + 1) { IntArray(24 * 60 * 60 / SLEEP_PATTERN_GRANULARITY) })
+
+        fun stackValuePattern(index: Int, spanBegin: Long, spanEnd: Long, begin: Long, end: Long) {
+            val beginDays = unixToDays(begin)
+            val endDays = unixToDays(end)
+            var mid = begin
+
+            for (i in beginDays..endDays) {
+                // i is the days/weeks/months since unix epoch
+                val dayBegin = daysToUnix(i)
+                val dayEnd =  daysToUnix(i + 1)
+                val sleepBegin = max(mid, dayBegin)
+                val sleepEnd = min(end, dayEnd)
+
+                if (sleepBegin != sleepEnd) {
+                    assert(dayBegin <= dayEnd)
+                    assert(sleepBegin <= sleepEnd)
+                    val iBegin = (sleepBegin - dayBegin) / SLEEP_PATTERN_GRANULARITY
+                    val iEnd = iBegin + (sleepEnd - sleepBegin) / SLEEP_PATTERN_GRANULARITY
+                    for (j in iBegin..<iEnd) {
+                        stack[index][j.toInt()] += 1
+                    }
+                }
+                mid = sleepEnd
+            }
+        }
+
+        for (range in ranges) {
+            // a sleep event can span to another day
+            // distribute sleep time over the days
+            val startUnix = range.start
+            val endUnix = range.end
+            val begIndex = unixToSpan(startUnix)
+            val endIndex = unixToSpan(endUnix)
+            var mid = startUnix
+
+            for (i in begIndex..endIndex) {
+                // i is the days/weeks/months since unix epoch
+                val spanBegin = spanToUnix(i)
+                val spanEnd =  spanToUnix(i + 1)
+                val sleepBegin = max(mid, spanBegin)
+                val sleepEnd = min(endUnix, spanEnd)
+                val index = i - state.startSpan
+                val duration = sleepEnd - sleepBegin
+
+                state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
+                stackValuePattern(index, spanBegin, spanEnd, sleepBegin, sleepEnd)
+
+                mid = sleepEnd
+            }
+        }
+
+        fun mapColor(occurrences: Int, maxOccurrences: Int): Int {
+            // occurrences: number of reported sleeps in a specific time slot
+            // maxOccurrences: maximum number of days with data that can contribute to maxOccurrences
+            assert(maxOccurrences > 0)
+            assert(occurrences <= maxOccurrences)
+
+            // map to color
+            val q = occurrences.toFloat() / maxOccurrences.toFloat()
+            val i = q * (SLEEP_PATTERN_COLORS.size - 1).toFloat()
+            return SLEEP_PATTERN_COLORS[i.toInt()]
+        }
+
+        val allColors = ArrayList<Int>()
+
+        // convert array of time slots that represent a day to value and color arrays used by chart library
+        for ((index, dayArray) in stack.withIndex()) {
+            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
+
+            val vals = ArrayList<Float>()
+
+            var prevIndex = -1 // time slot index
+            var prevValue = -1 // number of entries we have found for time slot
+            for ((i, v) in dayArray.withIndex()) {
+                if (i == 0) {
+                    prevIndex = i
+                    prevValue = v
+                } else if (prevValue != v) {
+                    vals.add((i - prevIndex).toFloat())
+                    allColors.add(mapColor(prevValue.coerceAtMost(daysWithData), daysWithData))
+                    prevIndex = i
+                    prevValue = v
+                }
+            }
+
+            if (prevIndex != -1) {
+                vals.add((dayArray.size - prevIndex).toFloat())
+                allColors.add(mapColor(prevValue, daysWithData))
+            }
+
+            assert(values.size == index)
+            values.add(BarEntry(values.size.toFloat(), vals.toFloatArray()))
+        }
+
+        barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
+            override fun onValueSelected(e: Entry?, h: Highlight?) {
+                if (e == null || h == null) {
+                    return
+                }
+
+                val index = e.x.toInt()
+                if (index !in 0..values.size) {
+                    return
+                }
+
+                val value = values[index]
+                if (value.yVals == null || h.stackIndex !in 0..value.yVals.size) {
+                    return
+                }
+
+                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
+                    // only show one Toast message after another
+                    return
+                }
+
+                val dayStartUnix = daysToUnix(unixToDays(state.startUnix) + index)
+
+                //Log.d(TAG, "startUnix: ${Date(startUnix * 1000)}, x: ${e.x.toInt()}, dayStartUnix: ${Date(dayStartUnix * 1000)}")
+                val startSeconds =
+                    SLEEP_PATTERN_GRANULARITY * value.yVals.sliceArray(0..<h.stackIndex)
+                        .fold(0) { acc, y -> acc + y.toInt() }
+                val durationSeconds =
+                    SLEEP_PATTERN_GRANULARITY * value.yVals[h.stackIndex].toInt()
+                val endSeconds = startSeconds + durationSeconds
+
+                val format = SimpleDateFormat("HH:mm", Locale.getDefault())
+                val startTimeString =
+                    format.format((dayStartUnix + startSeconds) * 1000).toString()
+                val endTimeString =
+                    format.format((dayStartUnix + endSeconds) * 1000).toString()
+                val durationString = DateUtils.formatTimeDuration(applicationContext, durationSeconds.toLong())
+
+                val daysWithData =
+                    stack[e.x.toInt()][startSeconds / SLEEP_PATTERN_GRANULARITY]
+                val daysWithDataMax = state.dayCounter.countDaysWithData(
+                    spanToUnix(state.startSpan + index),
+                    spanToUnix(state.startSpan + index + 1)
+                )
+
+                // percentage of days in this span where baby is asleep in this time slot
+                val pc = if (daysWithDataMax > 0) {
+                    (100F * daysWithData.toFloat() / daysWithDataMax.toFloat()).toInt()
+                } else {
+                    // no data for this day
+                    0
+                }
+
+                Toast.makeText(
+                    applicationContext,
+                    "$startTimeString - $endTimeString ($durationString) - ${pc}%",
+                    Toast.LENGTH_LONG
+                ).show()
+                lastToastShown = System.currentTimeMillis()
+            }
+
+            override fun onNothingSelected() {}
+        })
+
+        val set1 = BarDataSet(values, "")
+        set1.colors = allColors
+        set1.setDrawValues(false) // usually too many values
+        set1.isHighlightEnabled = true
+        set1.setDrawIcons(false)
+
+        val data = BarData(set1)
+        data.setValueTextSize(12f)
+
+        val valueCount = min(values.size, 24)
+        barChart.setData(data)
+        barChart.legend.isEnabled = false
+        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
+        barChart.xAxis.setLabelCount(valueCount)
+        barChart.xAxis.setCenterAxisLabels(false)
+        barChart.moveViewTo(data.getEntryCount().toFloat(), 0f, YAxis.AxisDependency.LEFT)
+        barChart.invalidate()
+    }
+
+    // Sleep pattern bars that do not use time slots.
+    // This is useful/nicer for bars that only represent data of a singular days.
+    fun showSleepPatternBarGraphDaily(state: GraphState) {
+        val ranges = toSleepRanges(state.events)
+        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), FloatArray(0)) })
+
+        // stack awake/sleep durations
+        fun stackValuePattern(index: Int, spanBegin: Long, spanEnd: Long, begin: Long, end: Long) {
+            assert(begin in spanBegin..spanEnd)
+            assert(end in spanBegin..spanEnd)
+            assert(begin <= end)
+
+            val x = values[index].x
+            val yVals  = values[index].yVals // alternating sleep/awake durations
+            val y = yVals.fold(0F) { acc, next -> acc + next }
+
+            // y value is seconds when last awake
+            val awakeDuration = max(begin - spanBegin - y.toLong(), 0L)
+            val sleepDuration = end - begin
+
+            if ((awakeDuration + sleepDuration) > (spanEnd - spanBegin)) {
+                Log.e(TAG, "Invalid sleep duration, exceeds day/week or month bounds => ignore value")
+                return
+            }
+
+            // update value
+            val newYVals = appendToFloatArray(yVals, awakeDuration.toFloat(), sleepDuration.toFloat())
+            assert(index == x.toInt())
+            values[index] = BarEntry(index.toFloat(), newYVals)
+        }
+
+        for (range in ranges) {
+            // a sleep event can span to another day
+            // distribute sleep time over the days
+            val startUnix = range.start
+            val endUnix = range.end
+            val begIndex = unixToSpan(startUnix)
+            val endIndex = unixToSpan(endUnix)
+            var mid = startUnix
+
+            for (i in begIndex..endIndex) {
+                // i is the days/weeks/months since unix epoch
+                val spanBegin = spanToUnix(i)
+                val spanEnd =  spanToUnix(i + 1)
+                val sleepBegin = max(mid, spanBegin)
+                val sleepEnd = min(endUnix, spanEnd)
+                val index = i - state.startSpan
+                val duration = sleepEnd - sleepBegin
+
+                state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
+                stackValuePattern(index, spanBegin, spanEnd, sleepBegin, sleepEnd)
+
+                mid = sleepEnd
+            }
+        }
+
+        // awake phase color is transparent
+        val set1 = BarDataSet(values, "")
+        set1.colors = arrayListOf("#00000000".toColorInt(), "#72d7f5".toColorInt())
+        set1.setDrawValues(false) // usually too many values
+        set1.setDrawIcons(false)
+        set1.isHighlightEnabled = true
+
+        barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
+            override fun onValueSelected(e: Entry?, h: Highlight?) {
+                if (e == null || h == null) {
+                    return
+                }
+
+                val index = e.x.toInt()
+                if (index !in 0..values.size) {
+                    return
+                }
+
+                val value = values[index]
+                if (value.yVals == null || h.stackIndex !in 0..value.yVals.size) {
+                    return
+                }
+
+                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
+                    // only show one Toast message after another
+                    return
+                }
+
+                val duration = value.yVals[h.stackIndex].toInt()
+                val durationString = DateUtils.formatTimeDuration(applicationContext, duration.toLong())
+
+                val offsetUnix = spanToUnix(state.startSpan + e.x.toInt()) // start of the time span (day/week/month)
+                val startUnix = offsetUnix + value.yVals.sliceArray(0..<h.stackIndex).fold(0) { acc, y -> acc + y.toInt() }
+                val endUnix = startUnix + duration
+
+                val format = SimpleDateFormat("HH:mm", Locale.getDefault())
+                val startTimeString = format.format(startUnix * 1000).toString()
+                val endTimeString = format.format(endUnix * 1000).toString()
+                Toast.makeText(applicationContext, "$startTimeString - $endTimeString ($durationString)", Toast.LENGTH_LONG).show()
+                lastToastShown = System.currentTimeMillis()
+            }
+
+            override fun onNothingSelected() {}
+        })
+
+        val data = BarData(set1)
+        data.setValueTextSize(12f)
+
+        val valueCount = min(values.size, 24)
+        barChart.setData(data)
+        barChart.legend.isEnabled = false
+        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
+        barChart.xAxis.setLabelCount(valueCount)
+        barChart.xAxis.setCenterAxisLabels(false)
+        barChart.moveViewTo(data.getEntryCount().toFloat(), 0f, YAxis.AxisDependency.LEFT)
+        barChart.invalidate()
+    }
+
+    // Make sure the value on the bar is not out of screen.
+    class CustomHorizontalBarChartRenderer(chart: BarDataProvider, animator: ChartAnimator, viewPortHandler: ViewPortHandler): HorizontalBarChartRenderer(chart, animator, viewPortHandler) {
+        override fun drawValue(
+            c: Canvas,
+            valueText: String,
+            x: Float,
+            y: Float,
+            color: Int
+        ) {
+            mValuePaint.setColor(color)
+            c.drawText(valueText, x.coerceAtLeast(60F), y, mValuePaint)
+        }
+    }
+
+    fun showSleepBarGraph(state: GraphState) {
+        val ranges = toSleepRanges(state.events)
+        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
+        //Log.d(TAG, "startUnix: ${Date(state.startUnix * 1000)}, endUnix: ${Date(state.endUnix * 1000)}")
+
+        for (range in ranges) {
+            // a sleep event can span to another day
+            // distribute sleep time over the days
+            val startUnix = range.start
+            val endUnix = range.end
+            val begIndex = unixToSpan(startUnix)
+            val endIndex = unixToSpan(endUnix)
+            var mid = startUnix
+
+            for (i in begIndex..endIndex) {
+                // i is the days/weeks/months since unix epoch
+                val spanBegin = spanToUnix(i)
+                val spanEnd =  spanToUnix(i + 1)
+                val sleepBegin = max(mid, spanBegin)
+                val sleepEnd = min(endUnix, spanEnd)
+                val index = i - state.startSpan
+                val duration = sleepEnd - sleepBegin
+
+                state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
+
+                if (graphTypeSelection == GraphType.SLEEP_SUM) {
+                    values[index].y += duration.toFloat()
+                } else if (graphTypeSelection == GraphType.SLEEP_EVENTS) {
+                    values[index].y += 1F
+                } else {
+                    Log.e(TAG, "Unexpected graph type.")
+                    return
+                }
+
+                mid = sleepEnd
+            }
+        }
+
+        for (index in values.indices) {
+            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
+            if (daysWithData == 0) {
+                assert(values[index].y == 0F)
+            } else {
+                values[index].y /= daysWithData
+            }
+        }
+
+        val set1 = BarDataSet(values, "")
+        set1.setDrawValues(true)
+        set1.setDrawIcons(false)
+        set1.isHighlightEnabled = false
+
+        val data = BarData(set1)
+        data.setValueTextSize(12f)
+        data.setValueFormatter(object : ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+
+                val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
+                return when (graphTypeSelection) {
+                    GraphType.SLEEP_EVENTS -> {
+                        prefix + value.toInt().toString()
+                    }
+                    GraphType.SLEEP_SUM -> {
+                        prefix + DateUtils.formatTimeDuration(applicationContext, value.toLong())
+                    }
+                    else -> {
+                        Log.e(TAG, "unhandled graphTypeSelection $graphTypeSelection")
+                        prefix + value.toInt().toString()
+                    }
+                }
+            }
+        })
+
+        val valueCount = min(values.size, 24)
+        barChart.renderer = CustomHorizontalBarChartRenderer(barChart, barChart.animator, barChart.viewPortHandler)
+        barChart.setData(data)
+        barChart.legend.isEnabled = false
+        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
+        barChart.xAxis.setLabelCount(valueCount)
+        barChart.xAxis.setCenterAxisLabels(false)
+        barChart.moveViewTo(data.getEntryCount().toFloat(), 0f, YAxis.AxisDependency.LEFT)
+        barChart.invalidate()
+    }
+
+    fun showBottleBarGraph(state: GraphState) {
+        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
+
+        for (event in state.events) {
+            val index = unixToSpan(event.time) - state.startSpan
+
+            state.dayCounter.setDaysWithData(event.time, event.time)
+
+            if (graphTypeSelection == GraphType.BOTTLE_EVENTS) {
+                values[index].y += 1F
+            } else if (graphTypeSelection == GraphType.BOTTLE_SUM) {
+                values[index].y += event.quantity.toFloat()
+            } else {
+                Log.e(TAG, "unhandled graphTypeSelection: $graphTypeSelection")
+                return
+            }
+        }
+
+        for (index in values.indices) {
+            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
+            if (daysWithData == 0) {
+                assert(values[index].y == 0F)
+            } else {
+                values[index].y /= daysWithData
+            }
+        }
+
+        val set1 = BarDataSet(values, "")
+        set1.setDrawValues(true)
+        set1.isHighlightEnabled = false
+
+        val data = BarData(set1)
+        data.setValueTextSize(12f)
+        data.setValueFormatter(object : ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
+                //Log.d(TAG, "getFormattedValue ${dataTypeSelectionValue} ${eventTypeSelectionValue}")
+                return when (graphTypeSelection) {
+                    GraphType.BOTTLE_EVENTS -> {
+                        prefix + value.toInt().toString()
+                    }
+                    GraphType.BOTTLE_SUM -> {
+                        prefix + NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.BABY_BOTTLE, value.toInt())
+                    }
+                    else -> {
+                        Log.e(TAG, "unhandled graphTypeSelection")
+                        prefix + value.toInt()
+                    }
+                }
+            }
+        })
+
+        val valueCount = min(values.size, 24)
+        barChart.renderer = CustomHorizontalBarChartRenderer(barChart, barChart.animator, barChart.viewPortHandler)
+        barChart.setData(data)
+        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
+        barChart.xAxis.setLabelCount(valueCount)
+        barChart.xAxis.setCenterAxisLabels(false)
+        barChart.moveViewTo(data.getEntryCount().toFloat(), 0f, YAxis.AxisDependency.LEFT)
+        barChart.invalidate()
+    }
+
+    class DayCounter(val startDays: Int, val stopDays: Int) {
+        val daysWithData = BooleanArray(stopDays - startDays + 1)
+
+        // count days in a span that have data
+        // e.g. return 7 (days) for applied span of a week where there is data for every day 
+        fun countDaysWithData(beginUnix: Long, endUnix: Long): Int {
+            val beginDays = unixToDays(beginUnix)
+            val endDays = unixToDays(endUnix)
+            var count = 0
+            for (i in (beginDays - startDays)..<(endDays - startDays)) {
+                //Log.d(TAG, "countDaysWithData: i: $i, size: ${daysWithData.size}")
+                count += if (daysWithData[i]) { 1 } else { 0 }
+            }
+            return count
+        }
+
+        fun setDaysWithData(beginUnix: Long, endUnix: Long) {
+            val beginDays = unixToDays(beginUnix)
+            val endDays = unixToDays(endUnix)
+            assert(beginDays <= endDays)
+            assert(startDays <= beginDays)
+            for (i in (beginDays - startDays)..(endDays - startDays)) {
+                daysWithData[i] = true
+            }
+        }
+    }
+
+    data class GraphState(val events: List<LunaEvent>, val dayCounter: DayCounter, val startUnix: Long, val endUnix: Long, val startSpan: Int, val endSpan: Int)
+
+    fun showGraph() {
+        //Log.d(TAG, "showGraph: graphTypeSelection: $graphTypeSelection, timeRangeSelection: $timeRangeSelection")
+        barChart.fitScreen()
+        barChart.data?.clearValues()
+        barChart.xAxis.valueFormatter = null
+        barChart.notifyDataSetChanged()
+        barChart.clear()
+        barChart.invalidate()
+
+        val type = when (graphTypeSelection) {
+            GraphType.BOTTLE_EVENTS,
+            GraphType.BOTTLE_SUM -> LunaEvent.Type.BABY_BOTTLE
+            GraphType.SLEEP_EVENTS,
+            GraphType.SLEEP_SUM,
+            GraphType.SLEEP_PATTERN -> LunaEvent.Type.SLEEP
+        }
+
+
+        val events = MainActivity.allEvents.filter { it.type == type }.sortedBy { it.time }
+
+        if (events.isEmpty()) {
+            barChart.visibility = View.GONE
+            noDataTextView.visibility = View.VISIBLE
+            return
+        } else {
+            barChart.visibility = View.VISIBLE
+            noDataTextView.visibility = View.GONE
+        }
+
+        // unix time span of all events
+        val startUnix = events.minOf { it.time }
+        val endUnix = System.currentTimeMillis() / 1000
+
+        // convert to days, weeks or months
+        val startSpan = unixToSpan(startUnix)
+        val endSpan = unixToSpan(endUnix)
+
+        // days when the a day/week/month starts/ends
+        val startDays = unixToDays(spanToUnix(startSpan))
+        val endDays = unixToDays(spanToUnix(endSpan + 1)) // until end of next span
+        val dayCounter = DayCounter(startDays, endDays)
+
+        // print dates
+        barChart.xAxis.valueFormatter = object: ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                val index = value.toInt()
+                val unixSeconds = spanToUnix(startSpan + index)
+
+                val dateTime = Calendar.getInstance()
+                dateTime.time = Date(1000L * unixSeconds)
+                val year = dateTime.get(Calendar.YEAR)
+                val month = dateTime.get(Calendar.MONTH) + 1 // month starts at 0
+                val week = dateTime.get(Calendar.WEEK_OF_YEAR)
+                val day = dateTime.get(Calendar.DAY_OF_MONTH)
+
+                // Adjust years if the first week of a year starts in the previous year.
+                val years = if (month == 12 && week == 1) {
+                    year + 1
+                } else {
+                    year
+                }
+
+                val days = "%02d".format(day)
+                val weeks = "%02d".format(week)
+                val months = "%02d".format(month)
+
+                return when (timeRangeSelection) {
+                    TimeRange.DAY -> "$days/$months/$years"
+                    TimeRange.WEEK -> "$weeks/$years"
+                    TimeRange.MONTH -> "$months/$years"
+                }
+            }
+        }
+
+        val state = GraphState(events, dayCounter, startUnix, endUnix, startSpan, endSpan)
+
+        when (graphTypeSelection) {
+            GraphType.BOTTLE_EVENTS,
+            GraphType.BOTTLE_SUM -> showBottleBarGraph(state)
+            GraphType.SLEEP_EVENTS,
+            GraphType.SLEEP_SUM -> showSleepBarGraph(state)
+            GraphType.SLEEP_PATTERN -> if (timeRangeSelection == TimeRange.DAY) {
+                // specialized pattern bar for daily view (optional)
+                showSleepPatternBarGraphDaily(state)
+            } else {
+                showSleepPatternBarGraphSlotted(state)
+            }
+        }
+    }
+
+    private interface SpinnerItemSelected {
+        fun call(newValue: String?)
+    }
+
+    private fun setupSpinner(
+        currentValue: String,
+        spinnerId: Int,
+        arrayId: Int,
+        arrayValuesId: Int,
+        callback: SpinnerItemSelected
+    ) {
+        val arrayValues = resources.getStringArray(arrayValuesId)
+        val spinner = findViewById<Spinner>(spinnerId)
+        val spinnerAdapter =
+            ArrayAdapter.createFromResource(this, arrayId, R.layout.statistics_spinner_item)
+
+        spinner.adapter = spinnerAdapter
+        spinner.setSelection(arrayValues.indexOf(currentValue))
+        spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+            var check = 0
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, pos: Int, id: Long) {
+                if (pos >= arrayValues.size) {
+                    Toast.makeText(
+                        this@StatisticsActivity,
+                        "pos out of bounds: $arrayValues", Toast.LENGTH_SHORT
+                    ).show()
+                    return
+                }
+                if (check++ > 0) {
+                    callback.call(arrayValues[pos])
+                }
+            }
+
+            override fun onNothingSelected(parent: AdapterView<*>?) {
+                // ignore
+            }
+        }
+    }
+
+    companion object {
+        const val TAG = "StatisticsActivity"
+
+        // 15 min steps
+        const val SLEEP_PATTERN_GRANULARITY = 15 * 60
+
+        // Time between toast messages (to prevent jams)
+        const val TOAST_FREQUENCY_MS = 3500
+
+        // color gradient
+        val SLEEP_PATTERN_COLORS = arrayOf(
+            "#FFFFFF".toColorInt(), "#EEF5F7".toColorInt(), "#DDEBEF".toColorInt(), "#CCE2E7".toColorInt(),
+            "#BBD8DF".toColorInt(), "#AACED7".toColorInt(), "#99C4CF".toColorInt(), "#88BAC7".toColorInt(),
+            "#77B1BF".toColorInt(), "#66A7B7".toColorInt(), "#559DAF".toColorInt(), "#4493A7".toColorInt(),
+            "#33899F".toColorInt(), "#228097".toColorInt(), "#11768F".toColorInt(), "#006C87".toColorInt()
+        )
+
+        var graphTypeSelection = GraphType.SLEEP_SUM
+        var timeRangeSelection = TimeRange.DAY
+
+        private val dateTime = Calendar.getInstance() // scratch pad
+
+        // convert month to seconds since epoch
+        fun unixToMonths(seconds: Long): Int {
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR)
+            val months = dateTime.get(Calendar.MONTH)
+            return 12 * years + months
+        }
+
+        // convert month to seconds since epoch
+        fun monthsToUnix(months: Int): Long {
+            dateTime.time = Date(0)
+            dateTime.set(Calendar.YEAR, months / 12)
+            dateTime.set(Calendar.MONTH, months % 12)
+            dateTime.set(Calendar.HOUR, 0)
+            dateTime.set(Calendar.MINUTE, 0)
+            dateTime.set(Calendar.SECOND, 0)
+            return dateTime.time.time / 1000
+        }
+
+        // convert seconds to weeks since epoch
+        fun unixToWeeks(seconds: Long): Int {
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR) - 1970
+            val weeks = dateTime.get(Calendar.WEEK_OF_YEAR)
+            val month = dateTime.get(Calendar.MONTH) + 1 // month starts at 0
+
+            if (month == 12 && weeks == 1) {
+                // The first week if the year might start in the previous year.
+                return 52 * (years + 1) + weeks
+            }
+
+            return 52 * years + weeks
+        }
+
+        // convert weeks to seconds since epoch
+        fun weeksToUnix(weeks: Int): Long {
+            dateTime.time = Date(0)
+            dateTime.set(Calendar.YEAR, 1970 + weeks / 52)
+            dateTime.set(Calendar.WEEK_OF_YEAR, weeks % 52)
+            dateTime.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY)
+            dateTime.set(Calendar.HOUR, 0)
+            dateTime.set(Calendar.MINUTE, 0)
+            dateTime.set(Calendar.SECOND, 0)
+            return dateTime.time.time / 1000
+        }
+
+        // convert seconds to days since epoch
+        fun unixToDays(seconds: Long): Int {
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR)
+            val days = dateTime.get(Calendar.DAY_OF_YEAR)
+            return 365 * years + days
+        }
+
+        // convert days to seconds since epoch
+        fun daysToUnix(days: Int): Long {
+            dateTime.time = Date(0)
+            dateTime.set(Calendar.YEAR, days / 365)
+            dateTime.set(Calendar.DAY_OF_YEAR, days % 365)
+            dateTime.set(Calendar.HOUR, 0)
+            dateTime.set(Calendar.MINUTE, 0)
+            dateTime.set(Calendar.SECOND, 0)
+            return dateTime.time.time / 1000
+        }
+
+        fun appendToFloatArray(array: FloatArray, vararg values: Float): FloatArray {
+            // create new array
+            val newArray = FloatArray(array.size + values.size)
+            // copy old values
+            for (i in array.indices) {
+                newArray[i] = array[i]
+            }
+            // add new values
+            for (i in values.indices) {
+                newArray[array.size + i] = values[i]
+            }
+            return newArray
+        }
+
+        // for debugging
+        fun debugBarValues(values: ArrayList<BarEntry>) {
+            for (value in values) {
+                val yVals = value.yVals
+                if (yVals != null) {
+                    val y = yVals.fold(0F) { acc, next -> acc + next }
+                    val yVals = yVals.joinToString { it.toString() }
+                    Log.d(TAG, "value: ${value.x} $y ($yVals)")
+                } else {
+                    Log.d(TAG, "value: ${value.x} ${value.y}")
+                }
+            }
+        }
+    }
+}

app/src/main/java/it/danieleverducci/lunatracker/adapters/LunaEventRecyclerAdapter.kt

@@ -52,18 +52,17 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
         )
         holder.quantity.setTextColor(ContextCompat.getColor(context, R.color.textColor))
         // Contents
-        holder.type.text = item.getTypeEmoji(context)
+        holder.type.text = item.getHeaderEmoji(context)
         holder.description.text = when (item.type) {
-            LunaEvent.TYPE_MEDICINE -> item.notes
-            LunaEvent.TYPE_NOTE -> item.notes
-            LunaEvent.TYPE_CUSTOM -> item.notes
-            else -> item.getTypeDescription(context)
+            LunaEvent.Type.MEDICINE -> item.notes
+            LunaEvent.Type.NOTE -> item.notes
+            else -> item.getRowItemTitle(context)
         }
-        holder.time.text = DateUtils.formatTimeAgo(context, item.time)
+        holder.time.text = DateUtils.formatTimeAgo(context, item.getEndTime())
         var quantityText = numericUtils.formatEventQuantity(item)
 
         // if the event is weight, show difference with the last one
-        if (item.type == LunaEvent.TYPE_WEIGHT) {
+        if (item.type == LunaEvent.Type.WEIGHT) {
             val lastWeight = getPreviousWeightEvent(position)
             if (lastWeight != null) {
                 val differenceInWeight = item.quantity - lastWeight.quantity
@@ -94,7 +93,7 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
             return null
         for (pos in startFromPosition + 1 until items.size) {
             val item = items.get(pos)
-            if (item.type != LunaEvent.TYPE_WEIGHT)
+            if (item.type != LunaEvent.Type.WEIGHT)
                 continue
             return item
         }

app/src/main/java/it/danieleverducci/lunatracker/entities/LunaEvent.kt

@@ -12,24 +12,24 @@ import java.util.Date
  * release, it is simply ignored by previous ones).
  */
 class LunaEvent: Comparable<LunaEvent> {
-
-    companion object {
-        const val TYPE_BABY_BOTTLE = "BABY_BOTTLE"
-        const val TYPE_WEIGHT = "WEIGHT"
-        const val TYPE_BREASTFEEDING_LEFT_NIPPLE = "BREASTFEEDING_LEFT_NIPPLE"
-        const val TYPE_BREASTFEEDING_BOTH_NIPPLE = "BREASTFEEDING_BOTH_NIPPLE"
-        const val TYPE_BREASTFEEDING_RIGHT_NIPPLE = "BREASTFEEDING_RIGHT_NIPPLE"
-        const val TYPE_DIAPERCHANGE_POO = "DIAPERCHANGE_POO"
-        const val TYPE_DIAPERCHANGE_PEE = "DIAPERCHANGE_PEE"
-        const val TYPE_MEDICINE = "MEDICINE"
-        const val TYPE_ENEMA = "ENEMA"
-        const val TYPE_NOTE = "NOTE"
-        const val TYPE_CUSTOM = "CUSTOM"
-        const val TYPE_COLIC = "COLIC"
-        const val TYPE_TEMPERATURE = "TEMPERATURE"
-        const val TYPE_FOOD = "FOOD"
-        const val TYPE_PUKE = "PUKE"
-        const val TYPE_BATH = "BATH"
+    enum class Type {
+        BABY_BOTTLE,
+        FOOD,
+        BREASTFEEDING_LEFT_NIPPLE,
+        BREASTFEEDING_BOTH_NIPPLE,
+        BREASTFEEDING_RIGHT_NIPPLE,
+        DIAPERCHANGE_POO,
+        DIAPERCHANGE_PEE,
+        SLEEP,
+        WEIGHT,
+        MEDICINE,
+        ENEMA,
+        NOTE,
+        COLIC,
+        TEMPERATURE,
+        PUKE,
+        BATH,
+        UNKNOWN
     }
 
     private val jo: JSONObject
@@ -39,10 +39,16 @@ class LunaEvent: Comparable<LunaEvent> {
         set(value) {
             jo.put("time", value)
         }
-    var type: String
-        get(): String = jo.getString("type")
+    var type: Type
+        get(): Type {
+            return try {
+                Type.valueOf(jo.getString("type"))
+            } catch (_: Exception) {
+                Type.UNKNOWN
+            }
+        }
         set(value) {
-            jo.put("type", value)
+            jo.put("type", value.name)
         }
     var quantity: Int
         get() = jo.optInt("quantity")
@@ -80,78 +86,45 @@ class LunaEvent: Comparable<LunaEvent> {
         this.signature = event.signature
     }
 
-    constructor(type: String) {
+    constructor(type: Type) {
         this.jo = JSONObject()
         this.time = System.currentTimeMillis() / 1000
         this.type = type
     }
 
-    constructor(type: String, quantity: Int) {
+    constructor(type: Type, quantity: Int) {
         this.jo = JSONObject()
         this.time = System.currentTimeMillis() / 1000
         this.type = type
         this.quantity = quantity
     }
 
-    fun getTypeEmoji(context: Context): String {
-        return context.getString(
-            when (type) {
-                TYPE_BABY_BOTTLE -> R.string.event_bottle_type
-                TYPE_WEIGHT -> R.string.event_weight_type
-                TYPE_BREASTFEEDING_LEFT_NIPPLE -> R.string.event_breastfeeding_left_type
-                TYPE_BREASTFEEDING_BOTH_NIPPLE -> R.string.event_breastfeeding_both_type
-                TYPE_BREASTFEEDING_RIGHT_NIPPLE -> R.string.event_breastfeeding_right_type
-                TYPE_DIAPERCHANGE_POO -> R.string.event_diaperchange_poo_type
-                TYPE_DIAPERCHANGE_PEE -> R.string.event_diaperchange_pee_type
-                TYPE_MEDICINE -> R.string.event_medicine_type
-                TYPE_ENEMA -> R.string.event_enema_type
-                TYPE_NOTE -> R.string.event_note_type
-                TYPE_TEMPERATURE -> R.string.event_temperature_type
-                TYPE_COLIC -> R.string.event_colic_type
-                TYPE_FOOD -> R.string.event_food_type
-                TYPE_PUKE -> R.string.event_puke_type
-                TYPE_BATH -> R.string.event_bath_type
-                else -> R.string.event_unknown_type
-            }
-        )
+    fun getHeaderEmoji(context: Context): String {
+        return getHeaderEmoji(context, type)
     }
 
-    fun getTypeDescription(context: Context): String {
-        return context.getString(
-            when (type) {
-                TYPE_BABY_BOTTLE -> R.string.event_bottle_desc
-                TYPE_WEIGHT -> R.string.event_weight_desc
-                TYPE_BREASTFEEDING_LEFT_NIPPLE -> R.string.event_breastfeeding_left_desc
-                TYPE_BREASTFEEDING_BOTH_NIPPLE -> R.string.event_breastfeeding_both_desc
-                TYPE_BREASTFEEDING_RIGHT_NIPPLE -> R.string.event_breastfeeding_right_desc
-                TYPE_DIAPERCHANGE_POO -> R.string.event_diaperchange_poo_desc
-                TYPE_DIAPERCHANGE_PEE -> R.string.event_diaperchange_pee_desc
-                TYPE_MEDICINE -> R.string.event_medicine_desc
-                TYPE_ENEMA -> R.string.event_enema_desc
-                TYPE_NOTE -> R.string.event_note_desc
-                TYPE_TEMPERATURE -> R.string.event_temperature_desc
-                TYPE_COLIC -> R.string.event_colic_desc
-                TYPE_FOOD -> R.string.event_food_desc
-                TYPE_PUKE -> R.string.event_puke_desc
-                TYPE_BATH -> R.string.event_bath_desc
-                else -> R.string.event_unknown_desc
-            }
-        )
+    fun getDialogTitle(context: Context): String {
+        return getDialogTitle(context, type)
     }
 
-    fun getDialogMessage(context: Context): String? {
-        return context.getString(
-            when(type) {
-                TYPE_BABY_BOTTLE -> R.string.log_bottle_dialog_description
-                TYPE_MEDICINE -> R.string.log_medicine_dialog_description
-                TYPE_TEMPERATURE -> R.string.log_temperature_dialog_description
-                TYPE_DIAPERCHANGE_POO,
-                TYPE_DIAPERCHANGE_PEE,
-                TYPE_PUKE -> R.string.log_amount_dialog_description
-                TYPE_WEIGHT -> R.string.log_weight_dialog_description
-                else -> R.string.log_unknown_dialog_description
-            }
-        )
+    fun getRowItemTitle(context: Context): String {
+        return getPopupItemTitle(context, type).split(" ", limit = 2).last() // remove emoji
+    }
+
+    fun getDialogMessage(context: Context): String {
+        return getDialogMessage(context, type)
+    }
+
+    fun getStartTime(): Long {
+        return time
+    }
+
+    fun getEndTime(): Long {
+        return if (type == Type.SLEEP) {
+            time + quantity
+        } else {
+            time
+        }
     }
 
     fun toJson(): JSONObject {
@@ -165,4 +138,95 @@ class LunaEvent: Comparable<LunaEvent> {
     override fun compareTo(other: LunaEvent): Int {
         return (this.time - other.time).toInt()
     }
+
+    companion object {
+        fun getHeaderEmoji(context: Context, type: Type): String {
+            return context.getString(
+                when (type) {
+                    Type.BABY_BOTTLE -> R.string.event_bottle_type
+                    Type.WEIGHT -> R.string.event_weight_type
+                    Type.BREASTFEEDING_LEFT_NIPPLE -> R.string.event_breastfeeding_left_type
+                    Type.BREASTFEEDING_BOTH_NIPPLE -> R.string.event_breastfeeding_both_type
+                    Type.BREASTFEEDING_RIGHT_NIPPLE -> R.string.event_breastfeeding_right_type
+                    Type.DIAPERCHANGE_POO -> R.string.event_diaperchange_poo_type
+                    Type.DIAPERCHANGE_PEE -> R.string.event_diaperchange_pee_type
+                    Type.MEDICINE -> R.string.event_medicine_type
+                    Type.ENEMA -> R.string.event_enema_type
+                    Type.NOTE -> R.string.event_note_type
+                    Type.TEMPERATURE -> R.string.event_temperature_type
+                    Type.COLIC -> R.string.event_colic_type
+                    Type.FOOD -> R.string.event_food_type
+                    Type.PUKE -> R.string.event_puke_type
+                    Type.BATH -> R.string.event_bath_type
+                    Type.SLEEP -> R.string.event_sleep_type
+                    Type.UNKNOWN -> R.string.event_unknown_type
+                }
+            )
+        }
+
+        fun getDialogMessage(context: Context, type: Type): String {
+            return context.getString(
+                when (type) {
+                    Type.BABY_BOTTLE -> R.string.log_bottle_dialog_description
+                    Type.MEDICINE -> R.string.log_medicine_dialog_description
+                    Type.TEMPERATURE -> R.string.log_temperature_dialog_description
+                    Type.DIAPERCHANGE_POO,
+                    Type.DIAPERCHANGE_PEE,
+                    Type.PUKE -> R.string.log_amount_dialog_description
+                    Type.WEIGHT -> R.string.log_weight_dialog_description
+                    Type.SLEEP -> R.string.log_sleep_dialog_description
+                    else -> R.string.log_unknown_dialog_description
+                }
+            )
+        }
+
+        fun getDialogTitle(context: Context, type: Type): String {
+            return context.getString(
+                when (type) {
+                    Type.BABY_BOTTLE -> R.string.event_bottle_desc
+                    Type.WEIGHT -> R.string.event_weight_desc
+                    Type.BREASTFEEDING_LEFT_NIPPLE -> R.string.event_breastfeeding_left_desc
+                    Type.BREASTFEEDING_BOTH_NIPPLE -> R.string.event_breastfeeding_both_desc
+                    Type.BREASTFEEDING_RIGHT_NIPPLE -> R.string.event_breastfeeding_right_desc
+                    Type.DIAPERCHANGE_POO -> R.string.event_diaperchange_poo_desc
+                    Type.DIAPERCHANGE_PEE -> R.string.event_diaperchange_pee_desc
+                    Type.MEDICINE -> R.string.event_medicine_desc
+                    Type.ENEMA -> R.string.event_enema_desc
+                    Type.NOTE -> R.string.event_note_desc
+                    Type.TEMPERATURE -> R.string.event_temperature_desc
+                    Type.COLIC -> R.string.event_colic_desc
+                    Type.FOOD -> R.string.event_food_desc
+                    Type.PUKE -> R.string.event_puke_desc
+                    Type.BATH -> R.string.event_bath_desc
+                    Type.SLEEP -> R.string.event_sleep_desc
+                    Type.UNKNOWN -> R.string.event_unknown_desc
+                }
+            )
+        }
+
+        // Entries for for popup list
+        fun getPopupItemTitle(context: Context, type: Type): String {
+            return context.getString(
+                when (type) {
+                    Type.BABY_BOTTLE -> R.string.event_type_item_bottle
+                    Type.WEIGHT -> R.string.event_type_item_weight
+                    Type.BREASTFEEDING_LEFT_NIPPLE -> R.string.event_type_item_breastfeeding_left
+                    Type.BREASTFEEDING_BOTH_NIPPLE -> R.string.event_type_item_breastfeeding_both
+                    Type.BREASTFEEDING_RIGHT_NIPPLE -> R.string.event_type_item_breastfeeding_right
+                    Type.DIAPERCHANGE_POO -> R.string.event_type_item_diaperchange_poo
+                    Type.DIAPERCHANGE_PEE -> R.string.event_type_item_diaperchange_pee
+                    Type.MEDICINE -> R.string.event_type_item_medicine
+                    Type.ENEMA -> R.string.event_type_item_enema
+                    Type.NOTE -> R.string.event_type_item_note
+                    Type.TEMPERATURE -> R.string.event_type_item_temperature
+                    Type.COLIC -> R.string.event_type_item_colic
+                    Type.FOOD -> R.string.event_type_item_food
+                    Type.PUKE -> R.string.event_type_item_puke
+                    Type.BATH -> R.string.event_type_item_bath
+                    Type.SLEEP -> R.string.event_type_item_sleep
+                    Type.UNKNOWN -> R.string.event_type_item_unknown
+                }
+            )
+        }
+    }
 }

app/src/main/java/it/danieleverducci/lunatracker/repository/LocalSettingsRepository.kt

@@ -13,7 +13,7 @@ class LocalSettingsRepository(val context: Context) {
         const val SHARED_PREFS_DAV_URL = "webdav_url"
         const val SHARED_PREFS_DAV_USER = "webdav_user"
         const val SHARED_PREFS_DAV_PASS = "webdav_password"
-        const val SHARED_PREFS_NO_BREASTFEEDING = "no_breastfeeding"
+        const val SHARED_PREFS_DYNAMIC_MENU = "dynamic_menu"
         const val SHARED_PREFS_SIGNATURE = "signature"
     }
     enum class DATA_REPO {LOCAL_FILE, WEBDAV}
@@ -31,12 +31,12 @@ class LocalSettingsRepository(val context: Context) {
         return sharedPreferences.getString(SHARED_PREFS_SIGNATURE, "") ?: ""
     }
 
-    fun saveNoBreastfeeding(content: Boolean) {
-        sharedPreferences.edit { putBoolean(SHARED_PREFS_NO_BREASTFEEDING, content) }
+    fun saveDynamicMenu(content: Boolean) {
+        sharedPreferences.edit { putBoolean(SHARED_PREFS_DYNAMIC_MENU, content) }
     }
 
-    fun loadNoBreastfeeding(): Boolean {
-        return sharedPreferences.getBoolean(SHARED_PREFS_NO_BREASTFEEDING, false)
+    fun loadDynamicMenu(): Boolean {
+        return sharedPreferences.getBoolean(SHARED_PREFS_DYNAMIC_MENU, false)
     }
 
     fun saveDataRepository(repo: DATA_REPO) {

app/src/main/java/utils/DateUtils.kt

@@ -56,16 +56,14 @@ class DateUtils {
                 return builder.toString()
             }
 
-            if (years > 0) {
+            if (years != 0L) {
                 return format(years, days, R.string.year_ago, R.string.years_ago, R.string.day_ago, R.string.days_ago)
-            } else if (days > 0) {
+            } else if (days != 0L) {
                 return format(days, hours, R.string.day_ago, R.string.days_ago, R.string.hour_ago, R.string.hours_ago)
-            } else if (hours > 0) {
+            } else if (hours != 0L) {
                 return format(hours, minutes, R.string.hour_ago, R.string.hours_ago, R.string.minute_ago, R.string.minutes_ago)
-            } else if (minutes > 0) {
-                return format(minutes, seconds, R.string.minute_ago, R.string.minute_ago, R.string.second_ago, R.string.seconds_ago)
             } else {
-                return context.getString(R.string.now)
+                return format(minutes, seconds, R.string.minute_ago, R.string.minute_ago, R.string.second_ago, R.string.seconds_ago)
             }
         }
 

app/src/main/java/utils/NumericUtils.kt

@@ -7,6 +7,7 @@ import android.os.Build
 import android.util.Log
 import it.danieleverducci.lunatracker.R
 import it.danieleverducci.lunatracker.entities.LunaEvent
+import utils.DateUtils.Companion.formatTimeDuration
 import java.text.NumberFormat
 
 class NumericUtils (val context: Context) {
@@ -62,45 +63,54 @@ class NumericUtils (val context: Context) {
     }
 
     fun formatEventQuantity(event: LunaEvent): String {
+        return formatEventQuantity(event.type, event.quantity)
+    }
+
+    fun formatEventQuantity(type: LunaEvent.Type, quantity: Int): String {
         val formatted = StringBuilder()
-        if (event.quantity > 0) {
-            formatted.append(when (event.type) {
-                LunaEvent.TYPE_TEMPERATURE ->
-                    (event.quantity / 10.0f).toString()
-                LunaEvent.TYPE_DIAPERCHANGE_POO,
-                LunaEvent.TYPE_DIAPERCHANGE_PEE,
-                LunaEvent.TYPE_PUKE -> {
+        if (quantity > 0) {
+            formatted.append(when (type) {
+                LunaEvent.Type.TEMPERATURE ->
+                    (quantity / 10.0f).toString()
+                LunaEvent.Type.DIAPERCHANGE_POO,
+                LunaEvent.Type.DIAPERCHANGE_PEE,
+                LunaEvent.Type.PUKE -> {
                     val array = context.resources.getStringArray(R.array.AmountLabels)
-                    return array.getOrElse(event.quantity) {
-                        Log.e("NumericUtils", "Invalid index ${event.quantity}")
+                    return array.getOrElse(quantity) {
+                        Log.e("NumericUtils", "Invalid index $quantity")
                         return ""
                     }
                 }
-                else ->
-                    event.quantity
+                LunaEvent.Type.SLEEP -> formatTimeDuration(context, quantity.toLong())
+                else -> quantity
             })
 
             formatted.append(" ")
             formatted.append(
-                when (event.type) {
-                    LunaEvent.TYPE_BABY_BOTTLE -> measurement_unit_liquid_base
-                    LunaEvent.TYPE_WEIGHT -> measurement_unit_weight_base
-                    LunaEvent.TYPE_MEDICINE -> measurement_unit_weight_tiny
-                    LunaEvent.TYPE_TEMPERATURE -> measurement_unit_temperature_base
+                when (type) {
+                    LunaEvent.Type.BABY_BOTTLE -> measurement_unit_liquid_base
+                    LunaEvent.Type.WEIGHT -> measurement_unit_weight_base
+                    LunaEvent.Type.MEDICINE -> measurement_unit_weight_tiny
+                    LunaEvent.Type.TEMPERATURE -> measurement_unit_temperature_base
                     else -> ""
                 }
             )
+        } else {
+            formatted.append(when (type) {
+                LunaEvent.Type.SLEEP -> "💤" // baby is sleeping
+                else -> ""
+            })
         }
-        return formatted.toString()
+        return formatted.toString().trim()
     }
 
     /**
      * Returns a valid quantity range for the event type.
      * @return min, max, normal
      */
-    fun getValidEventQuantityRange(lunaEventType: String): Triple<Int, Int, Int>? {
+    fun getValidEventQuantityRange(lunaEventType: LunaEvent.Type): Triple<Int, Int, Int>? {
         return when (lunaEventType) {
-            LunaEvent.TYPE_TEMPERATURE -> {
+            LunaEvent.Type.TEMPERATURE -> {
                 if (isMetricSystem())
                     Triple(
                         context.resources.getInteger(R.integer.human_body_temp_min_metric),

app/src/main/res/drawable/ic_more.xml

@@ -1,5 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
-      
-    <path android:fillColor="@android:color/white" android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z"/>
-    
-</vector>

app/src/main/res/layout/activity_main.xml

@@ -86,15 +86,16 @@
             android:orientation="vertical">
 
             <LinearLayout
+                android:id="@+id/linear_layout_row1"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:orientation="horizontal">
 
                 <TextView
-                    android:id="@+id/button_bottle"
+                    android:id="@+id/button1_row1"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
-                    android:layout_weight="2"
+                    android:layout_weight="1"
                     android:layout_margin="5dp"
                     android:background="@drawable/button_background"
                     android:gravity="center_horizontal"
@@ -102,7 +103,7 @@
                     android:text="@string/event_bottle_type"/>
 
                 <TextView
-                    android:id="@+id/button_food"
+                    android:id="@+id/button2_row1"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:layout_weight="1"
@@ -115,80 +116,77 @@
             </LinearLayout>
 
             <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:id="@+id/layout_nipples">
-
-                <TextView
-                    android:id="@+id/button_nipple_left"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
-                    android:layout_weight="1"
-                    android:background="@drawable/button_background"
-                    android:gravity="center_horizontal"
-                    android:textSize="30sp"
-                    android:text="🤱⬅️"/>
-
-                <TextView
-                    android:id="@+id/button_nipple_both"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
-                    android:layout_weight="1"
-                    android:background="@drawable/button_background"
-                    android:gravity="center_horizontal"
-                    android:textSize="30sp"
-                    android:text="🤱↔️"/>
-
-                <TextView
-                    android:id="@+id/button_nipple_right"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
-                    android:layout_weight="1"
-                    android:background="@drawable/button_background"
-                    android:gravity="center_horizontal"
-                    android:textSize="30sp"
-                    android:text="🤱➡️️"/>
-
-            </LinearLayout>
-
-            <LinearLayout
+                android:id="@+id/linear_layout_row2"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content">
 
                 <TextView
-                    android:id="@+id/button_change_poo"
+                    android:id="@+id/button1_row2"
                     android:layout_width="0dp"
                     android:layout_height="wrap_content"
                     android:layout_margin="5dp"
-                    android:layout_weight="2"
-                    android:background="@drawable/button_background"
-                    android:gravity="center_horizontal"
-                    android:textSize="30sp"
-                    android:text="🚼 💩"/>
-
-                <TextView
-                    android:id="@+id/button_change_pee"
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
-                    android:layout_weight="2"
-                    android:background="@drawable/button_background"
-                    android:gravity="center_horizontal"
-                    android:textSize="30sp"
-                    android:text="🚼 💧"/>
-
-                <ImageView
-                    android:id="@+id/button_more"
-                    android:layout_width="0dp"
-                    android:layout_height="match_parent"
-                    android:layout_margin="5dp"
                     android:layout_weight="1"
                     android:background="@drawable/button_background"
                     android:gravity="center_horizontal"
-                    android:src="@drawable/ic_more"
+                    android:textSize="30sp"/>
+
+                <TextView
+                    android:id="@+id/button2_row2"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:background="@drawable/button_background"
+                    android:gravity="center_horizontal"
+                    android:textSize="30sp"/>
+
+                <TextView
+                    android:id="@+id/button3_row2"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:background="@drawable/button_background"
+                    android:gravity="center_horizontal"
+                    android:textSize="30sp"/>
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:id="@+id/linear_layout_row3"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <TextView
+                    android:id="@+id/button1_row3"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="5dp"
+                    android:layout_weight="2"
+                    android:background="@drawable/button_background"
+                    android:gravity="center_horizontal"
+                    android:textSize="30sp"/>
+
+                <TextView
+                    android:id="@+id/button2_row3"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="5dp"
+                    android:layout_weight="2"
+                    android:background="@drawable/button_background"
+                    android:gravity="center_horizontal"
+                    android:textSize="30sp"/>
+
+                <TextView
+                    android:id="@+id/button_more"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:background="@drawable/button_background"
+                    android:gravity="center_horizontal"
+                    android:textSize="30sp"
+                    android:text="☰"
                     app:tint="@android:color/darker_gray"/>
 
             </LinearLayout>

app/src/main/res/layout/activity_settings.xml

@@ -137,7 +137,7 @@
         <TextView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginStart="30dp"
+            android:layout_marginStart="20dp"
             android:layout_marginTop="5dp"
             android:text="@string/settings_signature_desc"/>
 
@@ -149,13 +149,13 @@
 
             <TextView
                 android:layout_width="0dp"
-                android:layout_weight="1"
                 android:layout_height="wrap_content"
+                android:layout_weight="1"
                 android:textStyle="bold"
-                android:text="@string/settings_no_breastfeeding" />
+                android:text="@string/settings_dynamic_menu" />
 
             <com.google.android.material.switchmaterial.SwitchMaterial
-                android:id="@+id/switch_no_breastfeeding"
+                android:id="@+id/switch_dynamic_menu"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginEnd="20dp"
@@ -166,9 +166,9 @@
         <TextView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginStart="30dp"
+            android:layout_marginStart="20dp"
             android:layout_marginTop="5dp"
-            android:text="@string/settings_no_breastfeeding_desc"/>
+            android:text="@string/settings_dynamic_menu_desc"/>
 
         <LinearLayout
             android:layout_width="match_parent"

app/src/main/res/layout/activity_statistics.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:padding="10dp">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="1">
+
+        <com.github.mikephil.charting.charts.HorizontalBarChart
+            android:id="@+id/bar_chart"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+        <TextView
+            android:id="@+id/no_data"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:visibility="gone"
+            android:gravity="center"
+            android:text="@string/statistics_no_data"/>
+
+    </FrameLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="0"
+        android:orientation="horizontal">
+
+        <Spinner
+            android:id="@+id/graph_type_selection"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="center"/>
+
+        <Spinner
+            android:id="@+id/time_range_selection"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:gravity="center"/>
+
+    </LinearLayout>
+
+</LinearLayout>

app/src/main/res/layout/dialog_edit_duration.xml

@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_gravity="center"
+    android:gravity="center"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/dialog_date_duration"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:textSize="20sp"
+        android:text="💤"/>
+
+    <LinearLayout
+        android:id="@+id/duration_buttons"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:gravity="center"
+        android:layout_marginTop="20dp"
+        android:layout_marginHorizontal="10dp"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/dialog_date_duration_minus5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/dialog_duration_button_minus_5"/>
+
+        <Button
+            android:id="@+id/dialog_date_duration_now"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/dialog_duration_button_now"/>
+
+        <Button
+            android:id="@+id/dialog_date_duration_asleep"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/dialog_duration_button_asleep"/>
+
+        <Button
+            android:id="@+id/dialog_date_duration_plus5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/dialog_duration_button_plus_5"/>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:gravity="center"
+        android:layout_marginTop="20dp"
+        android:layout_marginHorizontal="10dp"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/dialog_date_picker_begin"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"/>
+
+        <TextView
+            android:id="@+id/dialog_date_range_delimiter"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"
+            android:text="－"/>
+
+        <TextView
+            android:id="@+id/dialog_date_picker_end"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"/>
+
+    </LinearLayout>
+
+</LinearLayout>

app/src/main/res/layout/dialog_event_details.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -46,6 +45,18 @@
         android:textSize="28sp"
         android:text="@string/dialog_event_detail_quantity"/>
 
+    <TextView
+        android:id="@+id/dialog_event_detail_type_date_end"
+        android:layout_width="wrap_content"
+        android:layout_height="40dp"
+        android:layout_gravity="center_horizontal"
+        android:gravity="center_vertical"
+        android:drawablePadding="10dp"
+        android:drawableTint="@color/accent"
+        android:visibility="gone"
+        android:textSize="16sp"
+        android:textStyle="bold"/>
+
     <ScrollView
         android:layout_width="match_parent"
         android:layout_height="200dp"

app/src/main/res/layout/more_events_popup.xml

@@ -6,89 +6,21 @@
     android:background="@color/transparent">
 
     <LinearLayout
+        android:id="@+id/layout_list"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">
 
             <TextView
-                android:id="@+id/button_medicine"
+                android:id="@+id/button_statistics"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
                 android:padding="10dp"
                 android:background="@drawable/dropdown_list_item_background"
                 style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_medicine"/>
-
-            <TextView
-                android:id="@+id/button_note"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_note"/>
-
-            <TextView
-                android:id="@+id/button_temperature"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_temperature"/>
-
-            <TextView
-                android:id="@+id/button_puke"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_puke"/>
-
-            <TextView
-                android:id="@+id/button_colic"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_colic"/>
-
-            <TextView
-                android:id="@+id/button_scale"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_weight"/>
-
-            <TextView
-                android:id="@+id/button_bath"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_bath"/>
-
-            <TextView
-                android:id="@+id/button_enema"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:layout_marginTop="10dp"
-                android:padding="10dp"
-                android:background="@drawable/dropdown_list_item_background"
-                style="@style/OverflowMenuText"
-                android:text="@string/overflow_event_enema"/>
+                android:text="📊 Statistics"/>
 
+                <!-- Other buttons are inserted dynamically -->
     </LinearLayout>
 
 </ScrollView>

app/src/main/res/layout/more_events_popup_item.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/tv"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_marginTop="10dp"
+    android:padding="10dp"
+    android:background="@drawable/dropdown_list_item_background"
+    style="@style/OverflowMenuText"
+    android:text="Item Template"/>

app/src/main/res/layout/statistics_spinner_item.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView  
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent" 
+    android:layout_height="wrap_content"
+    android:textSize="20sp"
+    android:gravity="center"
+    android:padding="5dip" />

app/src/main/res/values-de/strings.xml

@@ -18,13 +18,6 @@
     <string name="event_colic_desc">Blähungskolik</string>
     <string name="event_unknown_desc"></string>
 
-    <string name="overflow_event_weight">⚖️ Gewicht</string>
-    <string name="overflow_event_medicine">💊 Medikament</string>
-    <string name="overflow_event_enema">🪠 Einlauf</string>
-    <string name="overflow_event_note">📝 Notiz</string>
-    <string name="overflow_event_temperature">🌡️ Temperatur</string>
-    <string name="overflow_event_colic">💨 Blähungskolik</string>
-
     <string name="toast_event_added">Ereignis gespeichert</string>
     <string name="toast_logbook_saved">Logbuch gespeichert</string>
     <string name="toast_event_add_error">Ereignis konnte nicht protokolliert werden</string>
@@ -42,7 +35,6 @@
     <string name="no_connection_retry">Erneut versuchen</string>
 
     <string name="settings_title">Einstellungen</string>
-    <string name="settings_no_breastfeeding">Kein Stillen</string>
     <string name="settings_storage">Speicherort für Daten auswählen</string>
     <string name="settings_storage_local">Auf dem Gerät</string>
     <string name="settings_storage_local_desc">Datenschutzfreundlichste Lösung: Deine Daten verlassen dein Gerät nicht</string>

app/src/main/res/values-fr/strings.xml

@@ -18,13 +18,6 @@
     <string name="event_colic_desc">Colique gazeuse</string>
     <string name="event_unknown_desc"></string>
 
-    <string name="overflow_event_weight">⚖️ Poids</string>
-    <string name="overflow_event_medicine">💊 Médicament</string>
-    <string name="overflow_event_enema">🪠 Lavement</string>
-    <string name="overflow_event_note">📝 Note</string>
-    <string name="overflow_event_temperature">🌡️ Température</string>
-    <string name="overflow_event_colic">💨 Colique gazeuse</string>
-
     <string name="toast_event_added">Entrée ajoutée</string>
     <string name="toast_logbook_saved">Journal ajouté</string>
     <string name="toast_event_add_error">Impossible d\'enregistrer cette entrée</string>

app/src/main/res/values-it/strings.xml

@@ -3,13 +3,6 @@
     <string name="title">🌜 LunaTracker 🌛</string>
     <string name="logbook">Diario di bordo</string>
 
-    <string name="overflow_event_weight">⚖️ Peso</string>
-    <string name="overflow_event_medicine">💊 Medicina</string>
-    <string name="overflow_event_enema">🪠 Clistere</string>
-    <string name="overflow_event_note">📝 Nota</string>
-    <string name="overflow_event_temperature">🌡️ Temperatura</string>
-    <string name="overflow_event_colic">💨 Colichette</string>
-
     <string name="event_bottle_desc">Biberon</string>
     <string name="event_food_desc">Cibo</string>
     <string name="event_weight_desc">Pesata</string>

app/src/main/res/values/arrays.xml

@@ -6,4 +6,32 @@
         <item>@string/amount_normal</item>
         <item>@string/amount_plenty</item>
     </string-array>
+
+    <string-array name="StatisticsTypeLabels">
+        <item>@string/statistics_bottle_sum</item>
+        <item>@string/statistics_bottle_events</item>
+        <item>@string/statistics_sleep_sum</item>
+        <item>@string/statistics_sleep_events</item>
+        <item>@string/statistics_sleep_pattern</item>
+    </string-array>
+
+    <string-array name="StatisticsTypeValues">
+        <item>BOTTLE_SUM</item>
+        <item>BOTTLE_EVENTS</item>
+        <item>SLEEP_SUM</item>
+        <item>SLEEP_EVENTS</item>
+        <item>SLEEP_PATTERN</item>
+    </string-array>
+
+    <string-array name="StatisticsTimeLabels">
+        <item>Day</item>
+        <item>Week</item>
+        <item>Month</item>
+    </string-array>
+
+    <string-array name="StatisticsTimeValues">
+        <item>DAY</item>
+        <item>WEEK</item>
+        <item>MONTH</item>
+    </string-array>
 </resources>

app/src/main/res/values/strings.xml

@@ -3,12 +3,13 @@
     <string name="title">🌜 LunaTracker 🌛</string>
     <string name="logbook">Logged events</string>
 
+    <!-- menu header items -->
     <string name="event_bottle_type" translatable="false">🍼</string>
     <string name="event_food_type" translatable="false">🥣</string>
     <string name="event_weight_type" translatable="false">⚖️</string>
-    <string name="event_breastfeeding_left_type" translatable="false">🤱 ←</string>
-    <string name="event_breastfeeding_both_type" translatable="false">🤱 ↔</string>
-    <string name="event_breastfeeding_right_type" translatable="false">🤱 →</string>
+    <string name="event_breastfeeding_left_type" translatable="false">🤱⬅️</string>
+    <string name="event_breastfeeding_both_type" translatable="false">🤱↔️</string>
+    <string name="event_breastfeeding_right_type" translatable="false">🤱➡️️</string>
     <string name="event_diaperchange_poo_type" translatable="false">🚼 💩</string>
     <string name="event_diaperchange_pee_type" translatable="false">🚼 💧</string>
     <string name="event_medicine_type" translatable="false">💊</string>
@@ -18,16 +19,37 @@
     <string name="event_colic_type" translatable="false">💨</string>
     <string name="event_puke_type" translatable="false">🤮</string>
     <string name="event_bath_type" translatable="false">🛁</string>
-    <string name="event_unknown_type" translatable="false">\?</string>
+    <string name="event_sleep_type" translatable="false">💤</string>
+    <string name="event_unknown_type" translatable="false">❓</string>
 
-    <string name="event_bottle_desc">Baby bottle</string>
+    <!-- dropdown menu item -->
+    <string name="event_type_item_bottle">🍼 Bottle</string>
+    <string name="event_type_item_food">🥣 Food</string>
+    <string name="event_type_item_weight">⚖️ Weight</string>
+    <string name="event_type_item_breastfeeding_left">🤱⬅️ Nursing</string>
+    <string name="event_type_item_breastfeeding_both">🤱↔️ Nursing</string>
+    <string name="event_type_item_breastfeeding_right">🤱➡️️ Nursing</string>
+    <string name="event_type_item_diaperchange_poo">🚼💩 Diaper</string>
+    <string name="event_type_item_diaperchange_pee">🚼💧 Diaper</string>
+    <string name="event_type_item_medicine">💊 Medicine</string>
+    <string name="event_type_item_enema">🪠 Enema</string>
+    <string name="event_type_item_note">📝 Note</string>
+    <string name="event_type_item_temperature">🌡️ Temperature</string>
+    <string name="event_type_item_colic">💨 Colic</string>
+    <string name="event_type_item_puke">🤮 Puke</string>
+    <string name="event_type_item_sleep">💤 Sleep</string>
+    <string name="event_type_item_bath">🛁 Bath</string>
+    <string name="event_type_item_unknown">❓ Unknown</string>
+
+    <!-- dialog titles -->
+    <string name="event_bottle_desc">Milk Bottle</string>
     <string name="event_food_desc">Food</string>
     <string name="event_weight_desc">Weight</string>
-    <string name="event_breastfeeding_left_desc">Breastfeeding (left)</string>
-    <string name="event_breastfeeding_both_desc">Breastfeeding</string>
-    <string name="event_breastfeeding_right_desc">Breastfeeding (right)</string>
-    <string name="event_diaperchange_poo_desc">Diaper chg (poo)</string>
-    <string name="event_diaperchange_pee_desc">Diaper chg (pee)</string>
+    <string name="event_breastfeeding_left_desc">Nursing (left)</string>
+    <string name="event_breastfeeding_both_desc">Nursing (both)</string>
+    <string name="event_breastfeeding_right_desc">Nursing (right)</string>
+    <string name="event_diaperchange_poo_desc">Diaper Change (poo)</string>
+    <string name="event_diaperchange_pee_desc">Diaper Change (pee)</string>
     <string name="event_medicine_desc">Medicine</string>
     <string name="event_enema_desc">Enema</string>
     <string name="event_note_desc">Note</string>
@@ -35,21 +57,14 @@
     <string name="event_colic_desc">Gaseous colic</string>
     <string name="event_puke_desc">Puke</string>
     <string name="event_bath_desc">Bath</string>
-    <string name="event_unknown_desc"></string>
-
-    <string name="overflow_event_weight">⚖️ Weight</string>
-    <string name="overflow_event_medicine">💊 Medicine</string>
-    <string name="overflow_event_enema">🪠 Enema</string>
-    <string name="overflow_event_note">📝 Note</string>
-    <string name="overflow_event_temperature">🌡️ Temperature</string>
-    <string name="overflow_event_colic">💨 Gaseous colic</string>
-    <string name="overflow_event_puke">🤮 Puke</string>
-    <string name="overflow_event_bath">🛁 Bath</string>
+    <string name="event_sleep_desc">Sleep</string>
+    <string name="event_unknown_desc">Unknown</string>
 
     <string name="toast_event_added">Event logged</string>
     <string name="toast_logbook_saved">Logbook saved</string>
     <string name="toast_event_add_error">Unable to log the event</string>
     <string name="toast_integer_error">Invalid value. Insert an integer.</string>
+    <string name="toast_date_error">Invalid date.</string>
 
     <string name="now">now</string>
     <string name="second_ago">sec</string>
@@ -73,6 +88,11 @@
     <string name="no_connection_go_to_settings">Settings</string>
     <string name="no_connection_retry">Retry</string>
 
+    <string name="statistics_title">Statistics</string>
+    <string name="statistics_no_data">No Data</string>
+
+    <string name="settings_dynamic_menu">Dynamic Menu</string>
+    <string name="settings_dynamic_menu_desc">Populate the header menu with the most used events.</string>
     <string name="settings_title">Settings</string>
     <string name="settings_signature">Signature</string>
     <string name="settings_signature_desc">Attach a signature to each event you create and for others to see. Useful if multiple people add events.</string>
@@ -91,8 +111,6 @@
     <string name="settings_webdav_error_generic">Error while trying to access WebDAV:</string>
     <string name="settings_webdav_creation_error_generic">Unable to save a file on the WebDAV server:</string>
     <string name="settings_webdav_creation_ok">Successfully connected with the WebDAV server</string>
-    <string name="settings_no_breastfeeding">No Breastfeeding</string>
-    <string name="settings_no_breastfeeding_desc">Hide the Breastfeeding buttons for when they are not needed.</string>
     <string name="settings_json_error">There\'s a save file on the server, but it is corrupted or unreadable. Please delete it </string>
     <string name="settings_generic_error">Error: </string>
     <string name="settings_webdav_upload_error">Error while uploading local logbook %1$s to webdav: %2$s</string>
@@ -112,6 +130,7 @@
     <string name="log_temperature_dialog_description">Select the temperature:</string>
     <string name="log_unknown_dialog_description"></string>
     <string name="log_weight_dialog_description">Insert the weight:</string>
+    <string name="log_sleep_dialog_description">Set sleep duration:</string>
 
     <string name="measurement_unit_liquid_base_metric" translatable="false">ml</string>
     <string name="measurement_unit_weight_base_metric" translatable="false">g</string>
@@ -122,17 +141,30 @@
     <string name="measurement_unit_temperature_base_imperial" translatable="false">°F</string>
     <string name="measurement_unit_temperature_base_metric" translatable="false">°C</string>
 
+    <string name="statistics_bottle_events">Bottle Events</string>
+    <string name="statistics_bottle_sum">Bottle Per Day</string>
+    <string name="statistics_medicine_events">Medicine Events</string>
+    <string name="statistics_sleep_sum">Sleep Per Day</string>
+    <string name="statistics_sleep_events">Sleep Events</string>
+    <string name="statistics_sleep_pattern">Sleep Pattern</string>
+
     <string name="row_luna_event_description">Description</string>
     <string name="row_luna_event_quantity">Qty</string>
     <string name="row_luna_event_time">Time</string>
 
     <string name="dialog_event_detail_title">Event detail</string>
-    <string name="dialog_event_detail_close_button">OK</string>
+    <string name="dialog_event_detail_close_button">Close</string>
+    <string name="dialog_event_detail_save_button">Save</string>
     <string name="dialog_event_detail_delete_button">Delete</string>
     <string name="dialog_event_detail_quantity">Quantity</string>
     <string name="dialog_event_detail_notes">Notes</string>
     <string name="dialog_event_detail_signature">by %s</string>
 
+    <string name="dialog_duration_button_asleep">asleep</string>
+    <string name="dialog_duration_button_minus_5">-5 min</string>
+    <string name="dialog_duration_button_now">now</string>
+    <string name="dialog_duration_button_plus_5">+5 min</string>
+
     <string name="dialog_add_logbook_title">Add logbook</string>
     <string name="dialog_add_logbook_logbookname">👶 Logbook name</string>
     <string name="dialog_add_logbook_message">Write a name to identify this logbook. This name will appear on top of the screen and, if you use WebDAV, will be in the save file name as well.</string>

app/src/main/res/values/themes.xml

@@ -4,6 +4,11 @@
     <style name="Theme.LunaTracker" parent="Theme.AppCompat.NoActionBar">
         <item name="colorAccent">@color/accent</item>
         <item name="android:textColor">@color/textColor</item>
+
+        <!-- make the screen not overlap with the system bars -->
+        <item name="android:fitsSystemWindows">true</item>
+        <item name="android:windowTranslucentStatus">true</item>
+        <item name="android:windowTranslucentNavigation">true</item>
     </style>
 
     <style name="OverflowMenuText">

gradle/libs.versions.toml

@@ -9,8 +9,11 @@ lifecycleRuntimeKtx = "2.6.1"
 activityCompose = "1.8.0"
 composeBom = "2024.04.01"
 appcompat = "1.7.0"
+mpandroidchart = "v4.2.2"
+mpandroidchartVersion = "v3.1.0"
 recyclerview = "1.3.2"
 material = "1.12.0"
+sardineAndroid = "v0.9"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -30,6 +33,9 @@ androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit
 androidx-material3 = { group = "androidx.compose.material3", name = "material3" }
 androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
 material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+mpandroidchart = { module = "com.github.PhilJay:MPAndroidChart", version.ref = "mpandroidchart" }
+mpandroidchart-vv310 = { module = "com.github.PhilJay:MPAndroidChart", version.ref = "mpandroidchartVersion" }
+sardine-android = { module = "com.github.thegrizzlylabs:sardine-android", version.ref = "sardineAndroid" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }

settings.gradle.kts

@@ -16,7 +16,7 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
-        maven(url = "https://jitpack.io")
+        maven(url = uri("https://jitpack.io"))
     }
 }