NumericUtils: remove possible trailing whitespace

A little better way to get the ms since epoch.

app/build.gradle.kts

@@ -65,4 +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

@@ -155,7 +155,7 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
-        // sort all event types by frequency and ordinal
+        // sort all event types by frequency or ordinal
         val eventTypesSorted = LunaEvent.Type.entries.toList().sortedWith(
             compareBy({ -1 * (eventTypeStats[it] ?: 0) }, { it.ordinal })
         ).filter { it != LunaEvent.Type.UNKNOWN }
@@ -276,7 +276,7 @@ class MainActivity : AppCompatActivity() {
         numberPicker.value = event.quantity / 10
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = dateTimePicker(event.time, dateTV)
+        val pickedTime = datePickerHelper(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -314,7 +314,7 @@ class MainActivity : AppCompatActivity() {
         weightET.setText(event.quantity.toString())
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = dateTimePicker(event.time, dateTV)
+        val pickedTime = datePickerHelper(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -365,7 +365,7 @@ class MainActivity : AppCompatActivity() {
         }
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = dateTimePicker(event.time, dateTV)
+        val pickedTime = datePickerHelper(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -389,8 +389,7 @@ class MainActivity : AppCompatActivity() {
         alertDialog.show()
     }
 
-    // Pick a date/time.
+    fun datePickerHelper(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
-    fun dateTimePicker(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
         dateTextView.text = DateUtils.formatDateTime(time)
 
         val dateTime = Calendar.getInstance()
@@ -421,83 +420,89 @@ class MainActivity : AppCompatActivity() {
         return dateTime
     }
 
-    fun addSleepEvent(event: LunaEvent) {
+    fun saveEvent(event: LunaEvent) {
-        askSleepValue(event, true) { saveEvent(event) }
+        if (!allEvents.contains(event)) {
+            // new event
+            logEvent(event)
         }
 
-    fun askSleepValue(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
+        logbook?.sort()
+        recyclerView.adapter?.notifyDataSetChanged()
+        saveLogbook()
+    }
+
+    fun addSleepEvent(event: LunaEvent) {
+        askSleepValue(event) { saveEvent(event) }
+    }
+
+    fun askSleepValue(event: LunaEvent, onPositive: () -> Unit) {
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_duration, null)
         d.setTitle(event.getDialogTitle(this))
+        d.setMessage(event.getDialogMessage(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 durationNowButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_now)
-        val datePickerEnd = dialogView.findViewById<TextView>(R.id.dialog_date_picker_end)
+        val datePicker = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
+        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 duration = event.quantity
-        var sleepStart = event.time
-        var sleepEnd = event.time + event.quantity
 
-        fun isValidTimeSpan(timeBeginUnix: Long, timeEndUnix: Long): Boolean {
+        fun isValidTime(timeSeconds: Long, durationSeconds: Int): Boolean {
             val now = System.currentTimeMillis() / 1000
-            return (timeBeginUnix > 0)
+            return (timeSeconds + durationSeconds) <= now && durationSeconds < (12 * 60 * 60)
-                && (timeEndUnix > 0)
-                && (timeBeginUnix <= timeEndUnix)
-                && (timeBeginUnix <= now)
-                && (timeEndUnix <= now)
-                && (timeEndUnix - timeBeginUnix) < (24 * 60 * 60)
         }
 
-        // prevent printing of seconds
+        val onDateChange = { time: Long ->
-        fun adjustToMinute(unixTime: Long): Long {
-            return unixTime - (unixTime % 60)
-        }
-
-        fun updateDuration() {
             durationTextView.setTextColor(currentDurationTextColor)
-            val duration = sleepEnd - sleepStart
+
-            if (duration == 0L) {
+            if (duration == 0) {
                 // baby is sleeping
                 durationTextView.text = "💤"
             } else {
-                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration)
+                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration.toLong())
-                if (!isValidTimeSpan(sleepStart, sleepEnd)) {
+                if (!isValidTime(time, duration)) {
                     durationTextView.setTextColor(invalidDurationTextColor)
                 }
             }
         }
 
-        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { time: Long ->
+        val pickedDateTime = datePickerHelper(event.time, datePicker, onDateChange)
-            sleepStart = adjustToMinute(time)
+
-            updateDuration()
+        onDateChange(pickedDateTime.time.time / 1000)
+
+        fun adjust(minutes: Int) {
+            duration += minutes * 60
+            if (duration < 0) {
+                duration = 0
+            }
+            onDateChange(pickedDateTime.time.time / 1000)
         }
 
-        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { time: Long ->
+        durationMinus5Button.setOnClickListener { adjust(-5) }
-            sleepEnd = adjustToMinute(time)
+        durationPlus5Button.setOnClickListener { adjust(5) }
-            updateDuration()
+
+        durationNowButton.setOnClickListener {
+            val now = System.currentTimeMillis() / 1000
+            val start = pickedDateTime.time.time / 1000
+            if (now > start) {
+                duration = (now - start).toInt()
+                duration -= duration % 60 // prevent printing of seconds
+                onDateChange(pickedDateTime.time.time / 1000)
             }
-
-        sleepStart = adjustToMinute(pickedDateTimeBegin.time.time / 1000)
-        sleepEnd = adjustToMinute(pickedDateTimeEnd.time.time / 1000)
-        updateDuration()
-
-        if (showTime) {
-            datePickerEnd.visibility = View.GONE
-            durationTextView.visibility = View.GONE
-            //d.setMessage("")
-        } else {
-            durationTextView.visibility = View.VISIBLE
-            d.setMessage(event.getDialogMessage(this))
         }
 
         d.setPositiveButton(android.R.string.ok) { dialogInterface, i ->
-            if (isValidTimeSpan(sleepStart, sleepEnd)) {
+            val time = pickedDateTime.time.time / 1000
-                event.time = sleepStart
+
-                event.quantity = (sleepEnd - sleepStart).toInt()
+            if (isValidTime(time, duration)) {
+                event.time = time
+                event.quantity = duration
                 onPositive()
             } else {
                 Toast.makeText(this, R.string.toast_date_error, Toast.LENGTH_SHORT).show()
@@ -514,7 +519,6 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun addAmountEvent(event: LunaEvent) {
-        setToPreviousQuantity(event)
         askAmountValue(event, true) { saveEvent(event) }
     }
 
@@ -531,11 +535,11 @@ 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 = dateTimePicker(event.time, dateTV)
+        val pickedTime = datePickerHelper(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -568,7 +572,7 @@ class MainActivity : AppCompatActivity() {
         d.setView(dialogView)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedDateTime = dateTimePicker(event.time, dateTV)
+        val pickedDateTime = datePickerHelper(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -603,7 +607,7 @@ class MainActivity : AppCompatActivity() {
         val qtyET = dialogView.findViewById<EditText>(R.id.notes_qty_edittext)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = dateTimePicker(event.time, dateTV)
+        val pickedTime = datePickerHelper(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -815,7 +819,7 @@ class MainActivity : AppCompatActivity() {
             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.text = DateUtils.formatDateTime(event.time + event.quantity)
                 dateEndTextView.visibility = View.VISIBLE
             } else {
                 dateEndTextView.visibility = View.GONE
@@ -829,7 +833,7 @@ class MainActivity : AppCompatActivity() {
         }
         updateValues()
 
-        dateTimePicker(event.time, dateTextView, { newTime: Long ->
+        datePickerHelper(event.time, dateTextView, { newTime: Long ->
             event.time = newTime
             updateValues()
         })
@@ -843,7 +847,7 @@ class MainActivity : AppCompatActivity() {
                 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)
+                LunaEvent.Type.SLEEP -> askSleepValue(event, updateValues)
                 else -> {
                     Log.w(TAG, "Unexpected type: ${event.type}")
                 }
@@ -873,7 +877,7 @@ class MainActivity : AppCompatActivity() {
         val previousEvent = getPreviousSameEvent(event, allEvents)
         if (previousEvent != null) {
             val emoji = previousEvent.getHeaderEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, event.getStartTime() - previousEvent.getEndTime())
+            val time = DateUtils.formatTimeDuration(applicationContext, event.time - previousEvent.time)
             previousTextView.text = String.format("⬅️ %s %s", emoji, time)
             previousTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -888,7 +892,7 @@ class MainActivity : AppCompatActivity() {
         val nextEvent = getNextSameEvent(event, allEvents)
         if (nextEvent != null) {
             val emoji = nextEvent.getHeaderEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.getStartTime() - event.getEndTime())
+            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.time - event.time)
             nextTextView.text = String.format("%s %s ➡️", time, emoji)
             nextTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -1113,6 +1117,23 @@ 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)
@@ -1124,32 +1145,6 @@ 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.
@@ -1284,6 +1279,18 @@ class MainActivity : AppCompatActivity() {
             val inflater = LayoutInflater.from(anchor.context)
             contentView = inflater.inflate(R.layout.more_events_popup, null)
 
+            // 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()
+            }
+
             val linearLayout = contentView.findViewById<LinearLayout>(R.id.layout_list)
 
             // Add buttons to create other events

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

@@ -0,0 +1,646 @@
+package it.danieleverducci.lunatracker
+
+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 com.github.mikephil.charting.charts.BarChart
+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.formatter.ValueFormatter
+import com.github.mikephil.charting.interfaces.datasets.IBarDataSet
+import it.danieleverducci.lunatracker.entities.LunaEvent
+import utils.NumericUtils
+import java.util.Calendar
+import java.util.Date
+import kotlin.math.max
+import kotlin.math.min
+import androidx.core.graphics.toColorInt
+
+class StatisticsActivity :  AppCompatActivity() {
+    lateinit var barChart: BarChart
+    lateinit var noDataTextView: TextView
+    lateinit var graphTypeSpinner: Spinner
+    //lateinit var dataTypeSelection: Spinner
+    lateinit var timeRangeSpinner: Spinner
+
+    enum class GraphType {
+        BOTTLE_EVENTS,
+        BOTTLE_SUM,
+        BOTTLE_SUM_AVERAGE,
+        SLEEP_SUM,
+        SLEEP_SUM_AVERAGE,
+        SLEEP_EVENTS,
+        SLEEP_PATTERN
+    }
+
+    enum class RangeType {
+        DAY,
+        WEEK,
+        MONTH
+    }
+
+    // default selection
+    var graphTypeSelection = GraphType.SLEEP_SUM
+    var timeRangeSelection = RangeType.DAY
+
+    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.setDrawGridLines(true)
+        barChart.xAxis.setDrawLabels(true)
+        barChart.xAxis.setDrawAxisLine(false)
+
+        graphTypeSpinner = findViewById(R.id.type_selection)
+        //dataTypeSelection = findViewById(R.id.data_selection)
+        timeRangeSpinner = findViewById(R.id.time_selection)
+
+        setupSpinner("SLEEP_SUM",
+            R.id.type_selection,
+            R.array.StatisticsTypeLabels,
+            R.array.StatisticsTypeValues,
+            object : SpinnerItemSelected {
+                override fun call(newValue: String?) {
+                    newValue ?: return
+                    graphTypeSelection = when (newValue) {
+                        "BOTTLE_EVENTS" -> GraphType.BOTTLE_EVENTS
+                        "BOTTLE_SUM" -> GraphType.BOTTLE_SUM
+                        "BOTTLE_SUM_AVERAGE" -> GraphType.BOTTLE_SUM_AVERAGE
+                        "SLEEP_SUM_AVERAGE" -> GraphType.SLEEP_SUM_AVERAGE
+                        "SLEEP_SUM" -> GraphType.SLEEP_SUM
+                        "SLEEP_SUM_AVERAGE" -> GraphType.SLEEP_SUM_AVERAGE
+                        "SLEEP_EVENTS" -> GraphType.SLEEP_EVENTS
+                        "SLEEP_PATTERN" -> GraphType.SLEEP_PATTERN
+                        else -> {
+                            Log.e(TAG, "Invalid graph type selection: $newValue")
+                            return
+                        }
+                    }
+
+                    //Log.d("event", "new value: $newValue")
+                    updateGraph()
+                }
+            }
+        )
+/*
+        setupSpinner(dataTypeSelectionValue,
+            R.id.data_selection,
+            R.array.StatisticsDataLabels,
+            R.array.StatisticsDataValues,
+            object : SpinnerItemSelected {
+                override fun call(newValue: String?) {
+                    if (newValue != null) {
+                        dataTypeSelectionValue = newValue
+                        //Log.d("event", "new value: $newValue")
+                        updateGraph()
+                    }
+                }
+            }
+        )
+*/
+        setupSpinner("DAY",
+            R.id.time_selection,
+            R.array.StatisticsTimeLabels,
+            R.array.StatisticsTimeValues,
+            object : SpinnerItemSelected {
+                override fun call(newValue: String?) {
+                    newValue ?: return
+                     timeRangeSelection = when (newValue) {
+                        "DAY" -> RangeType.DAY
+                        "WEEK" -> RangeType.WEEK
+                        "MONTH" -> RangeType.MONTH
+                        else -> {
+                            Log.e(TAG, "Invalid time range selection: $newValue")
+                            return
+                        }
+                    }
+                    //Log.d("event", "new value: $newValue")
+                    updateGraph()
+                }
+            }
+        )
+
+       updateGraph()
+    }
+
+    fun showSleepBarGraph(events: List<LunaEvent>, unixToSpan: (Long) -> Int, spanToUnix: (Int) -> Long) {
+        fun getEndTime(event: LunaEvent): Long {
+            if (event.quantity == 0) {
+                // sleep is still ongoing
+                val dateTime = Calendar.getInstance()
+                return (dateTime.time.time / 1000) - event.time
+            } else {
+                return event.quantity.toLong()
+            }
+        }
+
+        data class SleepRange(val start: Long, val end: Long)
+        val ranges = arrayListOf<SleepRange>()
+
+        // Transform events into time ranges.
+        // Merge overlapping times and extend
+        // ongoing sleep events until now.
+        val dateTime = Calendar.getInstance()
+        for (event in events) {
+            val endTime = if (event.quantity == 0) {
+                dateTime.time.time / 1000 // now
+            } else {
+                event.time + event.quantity
+            }
+            /*
+            // TODO: handle overlap
+            if (ranges.isNotEmpty()) {
+                val lastItem = ranges.lastItem()
+                    if (lastItem.start)
+                    if (lastItem.end <= event.time) {
+                            // distinct
+                    }
+                }
+            }
+            */
+            ranges.add(SleepRange(event.time, endTime))
+        }
+
+        // unix time span of all events
+        val startUnix = events.minOf { it.time }
+        val endUnix = events.maxOf { getEndTime(it) }
+
+        // convert to days, weeks or months
+        val startSpan = unixToSpan(startUnix)
+        val endSpan = unixToSpan(endUnix)
+
+        val values = ArrayList<BarEntry>()
+
+        fun countEvent(index: Int) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), 0F))
+            }
+
+            // update value
+            values[index].y += 1F
+        }
+
+        fun accumulateValue(index: Int, value: Long) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), 0F))
+            }
+
+            // update value
+            values[index].y += value.toFloat()
+        }
+
+        fun stackValue(index: Int, value: Long) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), FloatArray(0)))
+            }
+
+            val x = values[index].x
+            val yVals  = values[index].yVals
+
+            // update value
+            val newYVals = appendToFloatArray(yVals, value.toFloat())
+            values[index] = BarEntry(x, newYVals)
+        }
+
+        // awake/sleep
+        fun stackValuePattern(index: Int, spanBegin: Long, spanEnd: Long, begin: Long, end: Long) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), FloatArray(0)))
+            }
+
+            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())
+            values[index] = BarEntry(x, newYVals)
+        }
+/*
+        fun addStack24hCap(spanDuration: Long) {
+            // spanDuration is usually a day, week, month in seconds
+            Log.d(TAG, "spanDuration: $spanDuration, ${24*60*60}")
+            for (i in values.indices) {
+                val x = values[i].x
+                val yVals = values[i].yVals
+                val y = yVals.fold(0F) { acc, next -> acc + next }
+                val cap = spanDuration.toFloat() - y
+                if (cap >= 0F) {
+                    // Add a cap value and an 0 value to keep the number of spans even.
+                    // This is important, since we configure two colors and they will alternate.
+                    val newYVals = appendToFloatArray(yVals, cap, 0F)
+                    values[i] = BarEntry(x, newYVals)
+                } else {
+                    Log.e(TAG, "Invalid remaining sleep duration, exceeds day/week or month bounds => ignore")
+                }
+            }
+        }
+*/
+
+        for (range in ranges) {
+            // a sleep event can span to another day
+            // distribute sleep time over the days
+            val startUnix = range.start //event.time
+            val endUnix = range.end //getEndTime(event)
+            val begIndex = unixToSpan(startUnix)
+            val endIndex = unixToSpan(endUnix)
+            var mid = startUnix
+
+            //Log.d(TAG, "startUnix: ${Date(startUnix * 1000)}, endUnix: ${Date(endUnix * 1000)}, begIndex: $begIndex, endIndex: $endIndex (index diff: ${endIndex - begIndex})")
+            for (i in begIndex..endIndex) {
+                val spanBegin = spanToUnix(i)
+                val spanEnd =  spanToUnix(i + 1)
+                //Log.d(TAG, "mid: ${Date(mid * 1000)}, spanBegin: ${Date(spanBegin * 1000)}, spanEnd: ${Date(spanEnd * 1000)}, endUnix: ${Date(endUnix * 1000)}")
+                val sleepBegin = max(mid, spanBegin)
+                val sleepEnd = min(endUnix, spanEnd)
+                val index = i - startSpan
+                val duration = sleepEnd - sleepBegin
+                //Log.d(TAG, "[$index] sleepBegin: ${Date(sleepBegin * 1000)}, sleepEnd: ${Date(sleepEnd * 1000)}, ${formatTimeDuration(this, duration)}")
+
+                if (graphTypeSelection == GraphType.SLEEP_PATTERN) {
+                    stackValuePattern(index, spanBegin, spanEnd, sleepBegin, sleepEnd)
+                } else if (graphTypeSelection == GraphType.SLEEP_SUM) {
+                    stackValue(index, duration)
+                } else if (graphTypeSelection == GraphType.SLEEP_SUM_AVERAGE) {
+                    accumulateValue(index, duration)
+                } else if (graphTypeSelection == GraphType.SLEEP_EVENTS) {
+                    countEvent(index)
+                } else {
+                    Log.e(TAG, "Unexpected graph type.")
+                    return
+                }
+
+                mid = sleepEnd
+            }
+
+            // TODO: move addStack24h here, since the spans can have different length (edge case and does not really matter)
+        }
+
+        //addStack24hCap(spanToUnix(1) - spanToUnix(0))
+
+        // for debugging
+        for (value in values) {
+            val y = value.yVals.fold(0F) { acc, next -> acc + next }
+            val yVals = value.yVals.joinToString { it.toString() }
+            Log.d(TAG, "value: ${value.x} $y ($yVals)")
+        }
+
+        // list of dates
+        val labels = ArrayList<String>()
+        for (index in values.indices) {
+            labels.add(spanToLabel(spanToUnix(startSpan + index)))
+        }
+
+        val set1 = BarDataSet(values, "")
+
+        if (graphTypeSelection == GraphType.SLEEP_PATTERN) {
+            // awake phase color is transparent
+            set1.colors = arrayListOf("#00000000".toColorInt(), ColorTemplate.rgb("#72d7f5"))
+            set1.setDrawValues(false) // too many values => let's disable it
+        } else {
+            set1.setDrawValues(false)
+        }
+
+        set1.setDrawIcons(false)
+
+        barChart.legend.isEnabled = false
+        barChart.xAxis.setLabelCount(min(values.size, 24))
+
+        val dataSets = ArrayList<IBarDataSet?>()
+        dataSets.add(set1)
+
+        val data = BarData(dataSets)
+
+        data.setValueFormatter(object : ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                //Log.d(TAG, "getFormattedValue ${dataTypeSelectionValue} ${eventTypeSelectionValue}")
+                return NumericUtils(applicationContext).formatEventQuantity(LunaEvent.TYPE_SLEEP, value.toInt())
+            }
+        })
+
+        barChart.xAxis.valueFormatter = object: ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                return labels.getOrElse(value.toInt(), {"?"})
+            }
+        }
+
+        //data.setValueTextSize(12f)
+        barChart.setData(data)
+        barChart.invalidate()
+    }
+
+    fun showBottleBarGraph(events: List<LunaEvent>, unixToSpan: (Long) -> Int, spanToUnix: (Int) -> Long) {
+        // unix time span of all events
+        val startUnix = events.minOf { it.time }
+        val endUnix = events.maxOf { it.time }
+
+        // convert to days, weeks or months
+        val startSpan = unixToSpan(startUnix)
+        val endSpan = unixToSpan(endUnix)
+
+        val values = ArrayList<BarEntry>()
+
+        fun countValue(index: Int) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), 0F))
+            }
+
+            // update value
+            values[index].y += 1F
+        }
+
+        fun accumulateValue(index: Int, duration: Long) {
+            // create initial values
+            while (index >= values.size) {
+                values.add(BarEntry(values.size.toFloat(), 0F))
+            }
+
+            // update value
+            values[index].y += duration.toFloat()
+        }
+
+        for (event in events) {
+            if (graphTypeSelection == GraphType.BOTTLE_EVENTS) {
+                val index = unixToSpan(event.time) - startSpan
+                countValue(index)
+            } else if (graphTypeSelection == GraphType.BOTTLE_SUM) {
+                val index = unixToSpan(event.time) - startSpan
+                //Log.d(TAG, "[${index}] ${event.quantity}")
+                accumulateValue(index, event.quantity.toLong())
+            } else {
+                Log.e(TAG, "unhandled graphTypeSelection")
+                return
+            }
+        }
+
+        // list of dates
+        val labels = ArrayList<String>()
+        for (index in values.indices) {
+            labels.add(spanToLabel(spanToUnix(startSpan + index)))
+        }
+
+        val set1 = BarDataSet(values, "")
+
+        set1.setDrawValues(true)
+        set1.setDrawIcons(false)
+
+        //showGraph(set1, valueLabels)
+
+        // for debugging
+        //val sum1 = allEvents.fold(0) { acc, event -> acc + event.quantity }
+        //val sum2 = values.fold(0F) { acc, item -> acc + item.y }
+        //Log.d(TAG, "sum1: $sum1, sum2: $sum2")
+
+        barChart.xAxis.setLabelCount(min(values.size, 24))
+
+        val dataSets = ArrayList<IBarDataSet?>()
+        dataSets.add(set1)
+
+        val data = BarData(dataSets)
+
+        data.setValueFormatter(object : ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                //Log.d(TAG, "getFormattedValue ${dataTypeSelectionValue} ${eventTypeSelectionValue}")
+                return when (graphTypeSelection) {
+                    GraphType.BOTTLE_EVENTS -> value.toInt().toString()
+                    GraphType.BOTTLE_SUM -> NumericUtils(applicationContext).formatEventQuantity(LunaEvent.TYPE_BABY_BOTTLE, value.toInt())
+                    else -> {
+                        Log.e(TAG, "unhandled graphTypeSelection")
+                        value.toInt().toString()
+                    }
+                }
+            }
+        })
+
+        barChart.xAxis.valueFormatter = object: ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                return labels.getOrElse(value.toInt(), {"?"})
+            }
+        }
+
+        data.setValueTextSize(12f)
+        barChart.setData(data)
+        barChart.invalidate()
+    }
+
+    fun spanToLabel(unixSeconds: Long): String {
+        val dateTime = Calendar.getInstance()
+        dateTime.time = Date(1000L * unixSeconds)
+        val year = dateTime.get(Calendar.YEAR)
+        val month = dateTime.get(Calendar.MONTH) + 1 // month starts at 0
+        val week = dateTime.get(Calendar.WEEK_OF_YEAR)
+        val day = dateTime.get(Calendar.DAY_OF_MONTH)
+        return when (timeRangeSelection) {
+            RangeType.DAY -> "$day/$month/$year"
+            RangeType.WEEK -> "$week/$year"
+            RangeType.MONTH -> "$month/$year"
+        }
+    }
+
+    fun updateGraph() {
+        val unixToSpan  = when (timeRangeSelection) {
+            RangeType.DAY -> { unix: Long -> unixToDays(unix) }
+            RangeType.WEEK -> { unix: Long -> unixToWeeks(unix) }
+            RangeType.MONTH -> { unix: Long -> unixToMonths(unix) }
+        }
+
+        val spanToUnix = when (timeRangeSelection) {
+            RangeType.DAY -> { span: Int -> daysToUnix(span) }
+            RangeType.WEEK -> { span: Int -> weeksToUnix(span) }
+            RangeType.MONTH -> { span: Int ->  monthsToUnix(span) }
+        }
+
+        val eventType = when (graphTypeSelection) {
+            GraphType.BOTTLE_EVENTS,
+            GraphType.BOTTLE_SUM,
+            GraphType.BOTTLE_SUM_AVERAGE -> LunaEvent.TYPE_BABY_BOTTLE
+            GraphType.SLEEP_SUM,
+            GraphType.SLEEP_SUM_AVERAGE,
+            GraphType.SLEEP_EVENTS,
+            GraphType.SLEEP_PATTERN -> LunaEvent.TYPE_SLEEP
+        }
+
+        val events = MainActivity.allEvents.filter { it.type == eventType }.sortedBy { it.time }
+
+        if (events.isEmpty()) {
+            barChart.visibility = View.GONE
+            noDataTextView.visibility = View.VISIBLE
+        } else {
+            barChart.visibility = View.VISIBLE
+            noDataTextView.visibility = View.GONE
+
+            when (graphTypeSelection) {
+                GraphType.BOTTLE_EVENTS,
+                GraphType.BOTTLE_SUM,
+                GraphType.BOTTLE_SUM_AVERAGE -> showBottleBarGraph(events, unixToSpan, spanToUnix)
+                GraphType.SLEEP_SUM,
+                GraphType.SLEEP_SUM_AVERAGE,
+                GraphType.SLEEP_EVENTS,
+                GraphType.SLEEP_PATTERN -> showSleepBarGraph(events, unixToSpan, spanToUnix)
+            }
+        }
+    }
+
+    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"
+
+        fun unixToMonths(seconds: Long): Int {
+            val dateTime = Calendar.getInstance()
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR)
+            val months = dateTime.get(Calendar.MONTH)
+            return 12 * years + months
+        }
+
+        fun monthsToUnix(months: Int): Long {
+            val dateTime = Calendar.getInstance()
+            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
+        }
+
+        fun unixToWeeks(seconds: Long): Int {
+            val dateTime = Calendar.getInstance()
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR)
+            val weeks = dateTime.get(Calendar.WEEK_OF_YEAR)
+            return 52 * years + weeks
+        }
+
+        fun weeksToUnix(weeks: Int): Long {
+            val dateTime = Calendar.getInstance()
+            dateTime.time = Date(0)
+            dateTime.set(Calendar.YEAR, 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
+        }
+
+        fun unixToDays(seconds: Long): Int {
+            val dateTime = Calendar.getInstance()
+            dateTime.time = Date(seconds * 1000)
+            val years = dateTime.get(Calendar.YEAR)
+            val days = dateTime.get(Calendar.DAY_OF_YEAR)
+            return 365 * years + days
+        }
+
+        // convert from days to Date
+        fun daysToUnix(days: Int): Long {
+            val dateTime = Calendar.getInstance()
+            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
+        }
+    }
+}

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

@@ -58,7 +58,12 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
             LunaEvent.Type.NOTE -> item.notes
             else -> item.getRowItemTitle(context)
         }
-        holder.time.text = DateUtils.formatTimeAgo(context, item.getEndTime())
+        val endTime = if (item.type == LunaEvent.Type.SLEEP) {
+            item.quantity + item.time
+        } else {
+             item.time
+        }
+        holder.time.text = DateUtils.formatTimeAgo(context, endTime)
         var quantityText = numericUtils.formatEventQuantity(item)
 
         // if the event is weight, show difference with the last one

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

@@ -115,18 +115,6 @@ class LunaEvent: Comparable<LunaEvent> {
         return getDialogMessage(context, type)
     }
 
-    fun getStartTime(): Long {
-        return time
-    }
-
-    fun getEndTime(): Long {
-        return if (type == Type.SLEEP) {
-            time + quantity
-        } else {
-            time
-        }
-    }
-
     fun toJson(): JSONObject {
         return jo
     }

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

@@ -56,11 +56,11 @@ class DateUtils {
                 return builder.toString()
             }
 
-            if (years != 0L) {
+            if (years > 0) {
                 return format(years, days, R.string.year_ago, R.string.years_ago, R.string.day_ago, R.string.days_ago)
-            } else if (days != 0L) {
+            } else if (days > 0) {
                 return format(days, hours, R.string.day_ago, R.string.days_ago, R.string.hour_ago, R.string.hours_ago)
-            } else if (hours != 0L) {
+            } else if (hours > 0) {
                 return format(hours, minutes, R.string.hour_ago, R.string.hours_ago, R.string.minute_ago, R.string.minutes_ago)
             } else {
                 return format(minutes, seconds, R.string.minute_ago, R.string.minute_ago, R.string.second_ago, R.string.seconds_ago)

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

@@ -0,0 +1,5 @@
+<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

@@ -177,16 +177,15 @@
                     android:gravity="center_horizontal"
                     android:textSize="30sp"/>
 
-                <TextView
+                <ImageView
                     android:id="@+id/button_more"
-                    android:layout_width="0dp"
+                    android:layout_width="60dp"
-                    android:layout_height="wrap_content"
+                    android:layout_height="match_parent"
                     android:layout_margin="5dp"
-                    android:layout_weight="1"
+                    android:layout_weight="0"
                     android:background="@drawable/button_background"
                     android:gravity="center_horizontal"
-                    android:textSize="30sp"
+                    android:src="@drawable/ic_more"
-                    android:text="☰"
                     app:tint="@android:color/darker_gray"/>
 
             </LinearLayout>

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

@@ -0,0 +1,57 @@
+<?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="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/type_selection"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1" />
+<!--
+        <Spinner
+            android:id="@+id/data_selection"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"/>
+-->
+        <Spinner
+            android:id="@+id/time_selection"
+            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_edit_duration.xml

@@ -7,23 +7,46 @@
     android:gravity="center"
     android:orientation="vertical">
 
-    <TextView
-        android:id="@+id/dialog_date_picker_begin"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_marginTop="10dp"/>
-
     <TextView
         android:id="@+id/dialog_date_duration"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="20dp"
         android:textSize="20sp"
         android:text="💤"/>
 
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        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="-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/now"/>
+
+        <Button
+            android:id="@+id/dialog_date_duration_plus5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="+5"/>
+
+    </LinearLayout>
+
     <TextView
-        android:id="@+id/dialog_date_picker_end"
+        android:id="@+id/dialog_date_picker"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"

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

@@ -10,7 +10,17 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">
-                <!-- Buttons are inserted dynamically -->
+
+            <TextView
+                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="📊 Statistics"/>
+
+                <!-- Other buttons are inserted dynamically -->
     </LinearLayout>
 
 </ScrollView>

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

@@ -18,6 +18,13 @@
     <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>
@@ -35,6 +42,7 @@
     <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

@@ -18,6 +18,13 @@
     <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

@@ -3,6 +3,13 @@
     <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 +6,45 @@
         <item>@string/amount_normal</item>
         <item>@string/amount_plenty</item>
     </string-array>
+
+    <string-array name="StatisticsTypeLabels">
+        <item>BOTTLE_EVENTS</item>
+        <item>BOTTLE_SUM</item>
+        <item>BOTTLE_SUM_AVERAGE</item>
+        <item>SLEEP_SUM_AVERAGE</item>
+        <item>SLEEP_EVENTS</item>
+        <item>SLEEP_PATTERN</item>
+    </string-array>
+
+    <string-array name="StatisticsTypeValues">
+        <item>BOTTLE_EVENTS</item>
+        <item>BOTTLE_SUM</item>
+        <item>BOTTLE_SUM_AVERAGE</item>
+        <item>SLEEP_SUM_AVERAGE</item>
+        <item>SLEEP_EVENTS</item>
+        <item>SLEEP_PATTERN</item>
+    </string-array>
+<!--
+    <string-array name="StatisticsDataLabels">
+        <item>Event</item>
+        <item>Amount</item>
+    </string-array>
+
+    <string-array name="StatisticsDataValues">
+        <item>EVENT</item>
+        <item>AMOUNT</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

@@ -88,6 +88,8 @@
     <string name="no_connection_go_to_settings">Settings</string>
     <string name="no_connection_retry">Retry</string>
 
+    <string name="statistics_title">Statistics</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>

gradle/libs.versions.toml

@@ -9,6 +9,8 @@ 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"
@@ -31,6 +33,8 @@ 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]