layout: replace menu icon with utf8 character

The three dot menu icosn looks odd when stretched
due to the dynamic menu feature. Thus replace it
with the hamburger menu character that looks better
when scaled.

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

@@ -148,23 +148,19 @@ class MainActivity : AppCompatActivity() {
         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) {
+            val sampleSize = 100
+            // populate frequency map from first 100 events
+            allEvents.take(sampleSize.coerceAtMost(allEvents.size)).forEach {
                 eventTypeStats[it.type] = 1 + (eventTypeStats[it.type] ?: 0)
             }
         }
-        }
 
-        // 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 }
 
-        val usedEventCount = eventTypeStats.count { it.value > 0 }
-        val maxButtonCount = if (dynamicMenu) { usedEventCount } else { 7 }
-
+        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)
@@ -190,7 +186,7 @@ class MainActivity : AppCompatActivity() {
 
             fun show(vararg tvs: TextView) {
                 for (tv in tvs) {
-                val type = eventTypesSorted[showCounter]
+                    val type = sortedEventTypes[showCounter]
                     tv.text = LunaEvent.getHeaderEmoji(applicationContext, type)
                     tv.setOnClickListener { showCreateDialog(type) }
                     tv.visibility = View.VISIBLE
@@ -209,8 +205,15 @@ class MainActivity : AppCompatActivity() {
                 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(showCounter, eventTypesSorted.size)
+        currentPopupItems = eventTypesSorted.subList(eventsShown, eventTypesSorted.size)
     }
 
     override fun onStart() {
@@ -272,11 +275,8 @@ class MainActivity : AppCompatActivity() {
         numberPicker.wrapSelectorWheel = false
         numberPicker.value = event.quantity / 10
 
-        val numberPickerUnit = dialogView.findViewById<TextView>(R.id.dialog_number_picker_unit)
-        numberPickerUnit.text = NumericUtils(this).measurement_unit_liquid_base
-
         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 dateTimePicker(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
+    fun datePickerHelper(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
         dateTextView.text = DateUtils.formatDateTime(time)
 
         val dateTime = Calendar.getInstance()
@@ -421,122 +420,77 @@ class MainActivity : AppCompatActivity() {
         return dateTime
     }
 
-    fun addDurationEvent(event: LunaEvent) {
-        askDurationEvent(event, true) { saveEvent(event) }
+    fun addSleepEvent(event: LunaEvent) {
+        askSleepValue(event) { saveEvent(event) }
     }
 
-    fun askDurationEvent(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
+    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 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 durationClearButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_clear)
+        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 durationStart = event.getStartTime()
-        var durationEnd = event.getEndTime()
+        var duration = event.quantity
 
-        fun isValidTime(timeUnix: Long): Boolean {
+        fun isValidTime(timeSeconds: Long, durationSeconds: Int): Boolean {
             val now = System.currentTimeMillis() / 1000
-            return timeUnix in 1..now
+            return (timeSeconds + durationSeconds) <= now && durationSeconds < (24 * 60 * 60)
         }
 
-        fun isValidTimeSpan(timeBeginUnix: Long, timeEndUnix: Long): Boolean {
-            return (timeBeginUnix <= timeEndUnix) && (timeEndUnix - timeBeginUnix) < (24 * 60 * 60)
-        }
-
-        fun updateFields() {
-            datePickerBegin.text = DateUtils.formatDateTime(durationStart)
-            datePickerEnd.text = DateUtils.formatDateTime(durationEnd)
-
+        val onDateChange = { time: Long ->
             durationTextView.setTextColor(currentDurationTextColor)
-            val duration = durationEnd - durationStart
-            if (duration == 0L) {
-                // event is ongoing
+
+            if (duration == 0) {
+                // baby is sleeping
                 durationTextView.text = "💤"
-                dateDelimiter.visibility = View.GONE
-                datePickerEnd.visibility = View.GONE
             } else {
-                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration)
-                if (!isValidTimeSpan(durationStart, durationEnd)) {
+                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration.toLong())
+                if (!isValidTime(time, duration)) {
                     durationTextView.setTextColor(invalidDurationTextColor)
                 }
-                dateDelimiter.visibility = View.VISIBLE
-                datePickerEnd.visibility = View.VISIBLE
+            }
         }
 
-            datePickerBegin.setTextColor(if (isValidTime(durationStart)) { currentDurationTextColor } else { invalidDurationTextColor })
-            datePickerEnd.setTextColor(if (isValidTime(durationEnd)) { currentDurationTextColor } else { invalidDurationTextColor })
+        val pickedDateTime = datePickerHelper(event.time, datePicker, onDateChange)
+
+        onDateChange(pickedDateTime.time.time / 1000)
+
+        fun adjust(minutes: Int) {
+            duration += minutes * 60
+            if (duration < 0) {
+                duration = 0
+            }
+            onDateChange(pickedDateTime.time.time / 1000)
         }
 
-        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { pickedTime: Long ->
-            durationStart = pickedTime
-            if (datePickerEnd.visibility == View.GONE) {
-                durationEnd = pickedTime
-            }
-            updateFields()
-        }
-
-        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { pickedTime: Long ->
-            durationEnd = pickedTime
-            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))
-        }
-
-        durationStart = pickedDateTimeBegin.time.time / 1000
-        durationEnd = pickedDateTimeEnd.time.time / 1000
-
-        updateFields()
-
-        durationMinus5Button.setOnClickListener {
-            durationEnd = (durationEnd - 300).coerceAtLeast(durationStart)
-            updateFields()
-        }
-
-        durationPlus5Button.setOnClickListener {
-            durationEnd = (durationEnd + 300).coerceAtLeast(durationStart)
-            updateFields()
-        }
-
-        durationClearButton.setOnClickListener {
-            durationEnd = durationStart
-            updateFields()
-        }
+        durationMinus5Button.setOnClickListener { adjust(-5) }
+        durationPlus5Button.setOnClickListener { adjust(5) }
 
         durationNowButton.setOnClickListener {
-            durationEnd = System.currentTimeMillis() / 1000
-            updateFields()
+            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)
+            }
         }
 
         d.setPositiveButton(android.R.string.ok) { dialogInterface, i ->
-            if (isValidTime(durationStart) && isValidTime(durationEnd) && isValidTimeSpan(durationStart, durationEnd)) {
-                event.time = durationStart
-                event.quantity = (durationEnd - durationStart).toInt()
+            val time = pickedDateTime.time.time / 1000
+            if (isValidTime(time, duration)) {
+                event.time = time
+                event.quantity = duration
                 onPositive()
             } else {
                 Toast.makeText(this, R.string.toast_date_error, Toast.LENGTH_SHORT).show()
@@ -553,7 +507,6 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun addAmountEvent(event: LunaEvent) {
-        setToPreviousQuantity(event)
         askAmountValue(event, true) { saveEvent(event) }
     }
 
@@ -570,11 +523,11 @@ 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
         }
@@ -607,7 +560,7 @@ 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
         }
@@ -642,7 +595,7 @@ 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
@@ -854,7 +807,7 @@ 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
@@ -868,7 +821,7 @@ class MainActivity : AppCompatActivity() {
         }
         updateValues()
 
-        dateTimePicker(event.time, dateTextView, { newTime: Long ->
+        datePickerHelper(event.time, dateTextView, { newTime: Long ->
             event.time = newTime
             updateValues()
         })
@@ -882,7 +835,7 @@ 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 -> askDurationEvent(event, false, updateValues)
+                LunaEvent.Type.SLEEP -> askSleepValue(event, updateValues)
                 else -> {
                     Log.w(TAG, "Unexpected type: ${event.type}")
                 }
@@ -912,7 +865,7 @@ 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()
@@ -927,7 +880,7 @@ 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()
@@ -1309,7 +1262,7 @@ class MainActivity : AppCompatActivity() {
             LunaEvent.Type.FOOD -> addNoteEvent(event)
             LunaEvent.Type.PUKE -> addAmountEvent(event)
             LunaEvent.Type.BATH -> addPlainEvent(event)
-            LunaEvent.Type.SLEEP -> addDurationEvent(event)
+            LunaEvent.Type.SLEEP -> addSleepEvent(event)
             LunaEvent.Type.UNKNOWN -> {} // ignore
         }
     }

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

@@ -1,6 +1,5 @@
 package it.danieleverducci.lunatracker
 
-import android.graphics.Canvas
 import android.graphics.Color
 import android.os.Bundle
 import android.util.Log
@@ -12,19 +11,15 @@ 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.interfaces.datasets.IBarDataSet
 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
@@ -32,6 +27,7 @@ import java.text.SimpleDateFormat
 import java.util.Calendar
 import java.util.Date
 import java.util.Locale
+import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
 
@@ -51,7 +47,8 @@ class StatisticsActivity : AppCompatActivity() {
         BOTTLE_SUM,
         SLEEP_SUM,
         SLEEP_EVENTS,
-        SLEEP_PATTERN
+        SLEEP_PATTERN,
+        MEDICINE_EVENTS
     }
 
     enum class TimeRange {
@@ -85,12 +82,10 @@ class StatisticsActivity : AppCompatActivity() {
         barChart.axisRight.setDrawGridLines(false)
         barChart.axisRight.setDrawLabels(false)
 
+        //barChart.xAxis.setDrawGridLines(true)
         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)
 
@@ -141,6 +136,82 @@ class StatisticsActivity : AppCompatActivity() {
         }
     }
 
+    fun showMedicineBarGraph(state: GraphState) {
+        val values = HashMap<String, ArrayList<BarEntry>>()
+
+        for (event in state.events) {
+            val index = unixToSpan(event.time) - state.startSpan
+            val key = event.notes.trim().lowercase()
+            val array = values.getOrPut(key) {
+                ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
+            }
+
+            array[index].y += 1F
+        }
+
+        Log.d(TAG, "values.size: ${values.size}")
+        for ((key, value) in values) {
+            Log.d(TAG, "key: $key, value.size: ${value.size} ,value: ${value.joinToString { it.y.toLong().toString() }}")
+        }
+
+        // make sure legend names are not too long
+        fun shorten(notes: String): String {
+            return if (notes.length > 16) {
+                notes.take(13) + "..."
+            } else {
+                notes
+            }
+        }
+
+        fun chooseColor(notes: String): Int {
+            return (abs(notes.hashCode()) * 16777215) or (0xFF shl 24)
+        }
+
+        val sets = arrayListOf<IBarDataSet>()
+        for ((key, value) in values.entries) {
+            if (key.startsWith("v")) {
+                val description = shorten(key)
+                val barDataSet = BarDataSet(value, description)
+                barDataSet.color = chooseColor(key)
+                sets.add(barDataSet)
+            }
+        }
+
+        val data = BarData(sets)
+        //data.groupBars(0F, 0.2F, 0.1F);
+        data.setValueTextSize(12f)
+        data.barWidth = 1F
+        //data.groupBars(0F, 1F, 1F)
+
+        data.setValueFormatter(object : ValueFormatter() {
+            override fun getFormattedValue(value: Float): String {
+                return if (value == 0F) {
+                    ""
+                } else {
+                    value.toInt().toString()
+                }
+            }
+        })
+
+        barChart.setScaleEnabled(true)
+        barChart.legend.isEnabled = true
+
+        //barChart.xAxis.setLabelCount(min(values.size, 24), false);
+        //val maxCount = min(maxIndex, 30) // values.size
+        //Log.d(TAG, "maxCount: $maxCount")
+        barChart.setVisibleXRangeMaximum(20F) //maxCount.toFloat()) // show max 24 entries
+        barChart.xAxis.setLabelCount(30, true)
+        //barChart.xAxis.isEnabled = false
+        barChart.xAxis.setCenterAxisLabels(true)
+        barChart.setScaleEnabled(false)
+
+        //barChart.axisLeft.isSLEEP_PATTERN_GRANULARITYEnabled = true
+        //barChart.axisLeft.setSLEEP_PATTERN_GRANULARITY(0.8F)
+
+        barChart.setData(data)
+        barChart.invalidate()
+    }
+
     data class SleepRange(val start: Long, var end: Long)
 
     fun toSleepRanges(events: List<LunaEvent>): ArrayList<SleepRange> {
@@ -176,16 +247,20 @@ class StatisticsActivity : AppCompatActivity() {
         return ranges
     }
 
-    fun showSleepPatternBarGraphSlotted(state: GraphState) {
+    fun showSleepPatternBarGraph(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) })
 
+        Log.d(TAG, "stack.size: ${stack.size}, array.size: ${stack[0].size}, dayCounter.daysWithData.size: ${state.dayCounter.daysWithData.size}")
+
         fun stackValuePattern(index: Int, spanBegin: Long, spanEnd: Long, begin: Long, end: Long) {
             val beginDays = unixToDays(begin)
             val endDays = unixToDays(end)
             var mid = begin
 
+            //Log.d(TAG, "stackValuePattern: ${beginDays}..${endDays}")
+
             for (i in beginDays..endDays) {
                 // i is the days/weeks/months since unix epoch
                 val dayBegin = daysToUnix(i)
@@ -198,7 +273,8 @@ class StatisticsActivity : AppCompatActivity() {
                     assert(sleepBegin <= sleepEnd)
                     val iBegin = (sleepBegin - dayBegin) / SLEEP_PATTERN_GRANULARITY
                     val iEnd = iBegin + (sleepEnd - sleepBegin) / SLEEP_PATTERN_GRANULARITY
-                    for (j in iBegin..<iEnd) {
+                    Log.d(TAG, "index: $index, iBegin: $iBegin, iEnd: $iEnd, dayBegin: ${Date(dayBegin * 1000)}, dayEnd: ${Date(dayEnd * 1000)}, sleepBegin: ${Date(sleepBegin * 1000)}, sleepEnd: ${Date(sleepEnd * 1000)}")
+                    for (j in iBegin..iEnd) {
                         stack[index][j.toInt()] += 1
                     }
                 }
@@ -215,14 +291,17 @@ class StatisticsActivity : AppCompatActivity() {
             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) {
                 // i is the days/weeks/months since unix epoch
                 val spanBegin = spanToUnix(i)
                 val spanEnd =  spanToUnix(i + 1)
+                //Log.d(TAG, "mid: ${Date(mid * 1000)}, spanBegin: ${Date(spanBegin * 1000)}, spanEnd: ${Date(spanEnd * 1000)}, beginUnix: ${Date(startUnix * 1000)} endUnix: ${Date(endUnix * 1000)}")
                 val sleepBegin = max(mid, spanBegin)
                 val sleepEnd = min(endUnix, spanEnd)
                 val index = i - state.startSpan
                 val duration = sleepEnd - sleepBegin
+                //Log.d(TAG, "[$index] sleepBegin: ${Date(sleepBegin * 1000)}, sleepEnd: ${Date(sleepEnd * 1000)}, ${DateUtils.formatTimeDuration(this, duration)}")
 
                 state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
                 stackValuePattern(index, spanBegin, spanEnd, sleepBegin, sleepEnd)
@@ -232,7 +311,7 @@ class StatisticsActivity : AppCompatActivity() {
         }
 
         fun mapColor(occurrences: Int, maxOccurrences: Int): Int {
-            // occurrences: number of reported sleeps in a specific time slot
+            // occurences: number of reported sleeps in a specific time slice
             // maxOccurrences: maximum number of days with data that can contribute to maxOccurrences
             assert(maxOccurrences > 0)
             assert(occurrences <= maxOccurrences)
@@ -249,17 +328,18 @@ class StatisticsActivity : AppCompatActivity() {
         for ((index, dayArray) in stack.withIndex()) {
             val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
 
+            //Log.d(TAG, "index: $index: dayArray: ${dayArray.joinToString { it.toString() }}")
             val vals = ArrayList<Float>()
 
-            var prevIndex = -1 // time slot index
-            var prevValue = -1 // number of entries we have found for time slot
+            var prevIndex = -1 // time slice index
+            var prevValue = -1 // number of entries we have found for time slice
             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))
+                    allColors.add(mapColor(prevValue, daysWithData))
                     prevIndex = i
                     prevValue = v
                 }
@@ -270,10 +350,13 @@ class StatisticsActivity : AppCompatActivity() {
                 allColors.add(mapColor(prevValue, daysWithData))
             }
 
-            assert(values.size == index)
-            values.add(BarEntry(values.size.toFloat(), vals.toFloatArray()))
+            //Log.d(TAG, "Range $index, vals: ${vals.joinToString { it.toInt().toString() }}") //, allColors: ${allColors.joinToString { it.toString() }}")
+
+            values.add(BarEntry(index.toFloat(), vals.toFloatArray()))
         }
 
+        Log.d(TAG, "daysWithData: ${state.dayCounter.daysWithData.joinToString()}")
+
         barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
             override fun onValueSelected(e: Entry?, h: Highlight?) {
                 if (e == null || h == null) {
@@ -290,13 +373,14 @@ class StatisticsActivity : AppCompatActivity() {
                     return
                 }
 
-                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
+                if ((lastToastShown + 3500) > 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() }
@@ -309,7 +393,10 @@ class StatisticsActivity : AppCompatActivity() {
                     format.format((dayStartUnix + startSeconds) * 1000).toString()
                 val endTimeString =
                     format.format((dayStartUnix + endSeconds) * 1000).toString()
-                val durationString = DateUtils.formatTimeDuration(applicationContext, durationSeconds.toLong())
+                val durationString = NumericUtils(applicationContext).formatEventQuantity(
+                    LunaEvent.Type.SLEEP,
+                    durationSeconds
+                )
 
                 val daysWithData =
                     stack[e.x.toInt()][startSeconds / SLEEP_PATTERN_GRANULARITY]
@@ -338,26 +425,22 @@ class StatisticsActivity : AppCompatActivity() {
         })
 
         val set1 = BarDataSet(values, "")
+        val data = BarData(set1)
         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.setScaleEnabled(false)
+        barChart.xAxis.setLabelCount(min(values.size, 24))
+        data.setValueTextSize(12f)
+        barChart.setData(data)
+
         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)) })
@@ -383,8 +466,7 @@ class StatisticsActivity : AppCompatActivity() {
 
             // update value
             val newYVals = appendToFloatArray(yVals, awakeDuration.toFloat(), sleepDuration.toFloat())
-            assert(index == x.toInt())
-            values[index] = BarEntry(index.toFloat(), newYVals)
+            values[index] = BarEntry(x, newYVals)
         }
 
         for (range in ranges) {
@@ -396,14 +478,17 @@ class StatisticsActivity : AppCompatActivity() {
             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) {
                 // i is the days/weeks/months since unix epoch
                 val spanBegin = spanToUnix(i)
                 val spanEnd =  spanToUnix(i + 1)
+                //Log.d(TAG, "mid: ${Date(mid * 1000)}, spanBegin: ${Date(spanBegin * 1000)}, spanEnd: ${Date(spanEnd * 1000)}, beginUnix: ${Date(startUnix * 1000)} endUnix: ${Date(endUnix * 1000)}")
                 val sleepBegin = max(mid, spanBegin)
                 val sleepEnd = min(endUnix, spanEnd)
                 val index = i - state.startSpan
                 val duration = sleepEnd - sleepBegin
+                //Log.d(TAG, "[$index] sleepBegin: ${Date(sleepBegin * 1000)}, sleepEnd: ${Date(sleepEnd * 1000)}, ${DateUtils.formatTimeDuration(this, duration)}")
 
                 state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
                 stackValuePattern(index, spanBegin, spanEnd, sleepBegin, sleepEnd)
@@ -412,13 +497,16 @@ class StatisticsActivity : AppCompatActivity() {
             }
         }
 
-        // awake phase color is transparent
         val set1 = BarDataSet(values, "")
+        val data = BarData(set1)
+
+        // awake phase color is transparent
         set1.colors = arrayListOf("#00000000".toColorInt(), "#72d7f5".toColorInt())
         set1.setDrawValues(false) // usually too many values
-        set1.setDrawIcons(false)
         set1.isHighlightEnabled = true
 
+        //barChart.xAxis.setCenterAxisLabels(true)
+
         barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
             override fun onValueSelected(e: Entry?, h: Highlight?) {
                 if (e == null || h == null) {
@@ -435,13 +523,13 @@ class StatisticsActivity : AppCompatActivity() {
                     return
                 }
 
-                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
+                if ((lastToastShown + 3500) > 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 durationString = NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.SLEEP, duration)
 
                 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() }
@@ -457,36 +545,20 @@ class StatisticsActivity : AppCompatActivity() {
             override fun onNothingSelected() {}
         })
 
-        val data = BarData(set1)
-        data.setValueTextSize(12f)
-
-        val valueCount = min(values.size, 24)
-        barChart.setData(data)
+        set1.setDrawIcons(false)
         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()
-    }
+        barChart.setScaleEnabled(false)
+        barChart.xAxis.setLabelCount(min(values.size, 24))
+        data.setValueTextSize(12f)
+        barChart.setData(data)
 
-    // 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)
-        }
+        barChart.invalidate()
     }
 
     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
@@ -497,14 +569,17 @@ class StatisticsActivity : AppCompatActivity() {
             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) {
                 // i is the days/weeks/months since unix epoch
                 val spanBegin = spanToUnix(i)
                 val spanEnd =  spanToUnix(i + 1)
+                //Log.d(TAG, "mid: ${Date(mid * 1000)}, spanBegin: ${Date(spanBegin * 1000)}, spanEnd: ${Date(spanEnd * 1000)}, beginUnix: ${Date(startUnix * 1000)} endUnix: ${Date(endUnix * 1000)}")
                 val sleepBegin = max(mid, spanBegin)
                 val sleepEnd = min(endUnix, spanEnd)
                 val index = i - state.startSpan
                 val duration = sleepEnd - sleepBegin
+                //Log.d(TAG, "[$index] sleepBegin: ${Date(sleepBegin * 1000)}, sleepEnd: ${Date(sleepEnd * 1000)}, ${DateUtils.formatTimeDuration(this, duration)}")
 
                 state.dayCounter.setDaysWithData(sleepBegin, sleepEnd)
 
@@ -521,6 +596,7 @@ class StatisticsActivity : AppCompatActivity() {
             }
         }
 
+        if (graphTypeSelection == GraphType.SLEEP_SUM) {
             for (index in values.indices) {
                 val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
                 if (daysWithData == 0) {
@@ -529,52 +605,53 @@ class StatisticsActivity : AppCompatActivity() {
                     values[index].y /= daysWithData
                 }
             }
+        }
 
         val set1 = BarDataSet(values, "")
+        val data = BarData(set1)
         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_EVENTS -> value.toInt().toString()
                     GraphType.SLEEP_SUM -> {
-                        prefix + DateUtils.formatTimeDuration(applicationContext, value.toLong())
+                        val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
+                        return prefix + NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.SLEEP, value.toInt())
                     }
                     else -> {
                         Log.e(TAG, "unhandled graphTypeSelection $graphTypeSelection")
-                        prefix + value.toInt().toString()
+                        value.toInt().toString()
                     }
                 }
             }
         })
 
-        val valueCount = min(values.size, 24)
-        barChart.renderer = CustomHorizontalBarChartRenderer(barChart, barChart.animator, barChart.viewPortHandler)
-        barChart.setData(data)
+        set1.setDrawIcons(false)
         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.setScaleEnabled(false)
+        barChart.xAxis.setLabelCount(min(values.size, 24))
+        data.setValueTextSize(12f)
+        barChart.setData(data)
+
         barChart.invalidate()
     }
 
     fun showBottleBarGraph(state: GraphState) {
         val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
 
+        // needed?
+        for (i in values.indices) {
+            values[i].x = i.toFloat()
+        }
+
         for (event in state.events) {
             val index = unixToSpan(event.time) - state.startSpan
 
             state.dayCounter.setDaysWithData(event.time, event.time)
 
+            // setDaysWithData(sleepBegin, sleepEnd)
             if (graphTypeSelection == GraphType.BOTTLE_EVENTS) {
                 values[index].y += 1F
             } else if (graphTypeSelection == GraphType.BOTTLE_SUM) {
@@ -585,46 +662,62 @@ class StatisticsActivity : AppCompatActivity() {
             }
         }
 
+        if (graphTypeSelection == GraphType.BOTTLE_SUM) {
             for (index in values.indices) {
                 val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
+                //Log.d(TAG, "index: $index, daysWithData: $daysWithData")
                 if (daysWithData == 0) {
                     assert(values[index].y == 0F)
                 } else {
                     values[index].y /= daysWithData
                 }
             }
+        }
 
         val set1 = BarDataSet(values, "")
+
         set1.setDrawValues(true)
         set1.isHighlightEnabled = false
 
+        //barChart.axisLeft.isSLEEP_PATTERN_GRANULARITYEnabled = true
+        //barChart.axisLeft.setSLEEP_PATTERN_GRANULARITY(0.8F)
+
         val data = BarData(set1)
-        data.setValueTextSize(12f)
+        //data.barWidth = 0.3F // 0.85 default // ratio of barWidth to totalWidth.
+        //Log.d(TAG, "data.barWidth: ${data.barWidth}")
+
         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_EVENTS -> value.toInt().toString()
                     GraphType.BOTTLE_SUM -> {
-                        prefix + NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.BABY_BOTTLE, value.toInt())
+                        val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
+                        return prefix + NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.BABY_BOTTLE, value.toInt())
                     }
                     else -> {
                         Log.e(TAG, "unhandled graphTypeSelection")
-                        prefix + value.toInt()
+                        value.toInt().toString()
                     }
                 }
             }
         })
 
-        val valueCount = min(values.size, 24)
-        barChart.renderer = CustomHorizontalBarChartRenderer(barChart, barChart.animator, barChart.viewPortHandler)
+// hm, does not work yet
+
+        data.setValueTextSize(12f)
         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.moveViewToX(values.lastOrNull()!!.x)
+
+        val maximumRange = 16F
+        //val count = values.size.coerceIn(5, 20)
+        barChart.setVisibleXRangeMaximum(maximumRange) // show max 24 entries
+        barChart.xAxis.setLabelCount(maximumRange.toInt(), true)
+        //barChart.xAxis.isEnabled = false
+        barChart.xAxis.setCenterAxisLabels(true)
+        barChart.setScaleEnabled(false)
+
         barChart.invalidate()
     }
 
@@ -656,22 +749,8 @@ class StatisticsActivity : AppCompatActivity() {
 
     data class GraphState(val events: List<LunaEvent>, val dayCounter: DayCounter, val startUnix: Long, val endUnix: Long, val startSpan: Int, val endSpan: Int)
 
-    fun showGraph() {
-        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
-        }
-
+    // wrapper for comon graph setup
+    fun prepareGraph(type: LunaEvent.Type, cb: (GraphState) -> Unit) {
         val events = MainActivity.allEvents.filter { it.type == type }.sortedBy { it.time }
 
         if (events.isEmpty()) {
@@ -693,7 +772,7 @@ class StatisticsActivity : AppCompatActivity() {
 
         // 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 endDays = unixToDays(spanToUnix(endSpan + 1)) // until end of next week
         val dayCounter = DayCounter(startDays, endDays)
 
         // print dates
@@ -708,39 +787,29 @@ class StatisticsActivity : AppCompatActivity() {
                 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/$years"
+                    TimeRange.DAY -> "$day/$month/$year"
+                    TimeRange.WEEK -> "$week/$year"
+                    TimeRange.MONTH -> "$month/$year"
                 }
             }
         }
 
-        val state = GraphState(events, dayCounter, startUnix, endUnix, startSpan, endSpan)
+        Log.d(TAG, "startDaysUnix: ${Date(daysToUnix(startDays) * 1000)}. endDaysUnix: ${Date(daysToUnix(endDays) * 1000)}")
+
+        cb(GraphState(events, dayCounter, startUnix, endUnix, startSpan, endSpan))
+    }
+
+    fun showGraph() {
+        Log.d(TAG, "showGraph: graphTypeSelection: $graphTypeSelection, timeRangeSelection: $timeRangeSelection")
 
         when (graphTypeSelection) {
             GraphType.BOTTLE_EVENTS,
-            GraphType.BOTTLE_SUM -> showBottleBarGraph(state)
+            GraphType.BOTTLE_SUM -> prepareGraph(LunaEvent.Type.BABY_BOTTLE) { state -> 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)
-            }
+            GraphType.SLEEP_SUM -> prepareGraph(LunaEvent.Type.SLEEP) { state -> showSleepBarGraph(state) }
+            GraphType.SLEEP_PATTERN -> prepareGraph(LunaEvent.Type.SLEEP) { state -> showSleepPatternBarGraph(state) }
+            GraphType.MEDICINE_EVENTS -> prepareGraph(LunaEvent.Type.MEDICINE) { state -> showMedicineBarGraph(state) }
         }
     }
 
@@ -760,6 +829,8 @@ class StatisticsActivity : AppCompatActivity() {
         val spinnerAdapter =
             ArrayAdapter.createFromResource(this, arrayId, R.layout.statistics_spinner_item)
 
+        //Log.d(TAG, "spinner ${arrayValues.indexOf(currentValue)} (${arrayValues.joinToString { it }})")
+
         spinner.adapter = spinnerAdapter
         spinner.setSelection(arrayValues.indexOf(currentValue))
         spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
@@ -787,10 +858,7 @@ class StatisticsActivity : AppCompatActivity() {
         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
+        val SLEEP_PATTERN_GRANULARITY = 15 * 60
 
         // color gradient
         val SLEEP_PATTERN_COLORS = arrayOf(
@@ -799,22 +867,20 @@ class StatisticsActivity : AppCompatActivity() {
             "#77B1BF".toColorInt(), "#66A7B7".toColorInt(), "#559DAF".toColorInt(), "#4493A7".toColorInt(),
             "#33899F".toColorInt(), "#228097".toColorInt(), "#11768F".toColorInt(), "#006C87".toColorInt()
         )
-
+        private val dateTime = Calendar.getInstance() // scratch pad
         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 {
+            //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
         }
 
-        // convert month to seconds since epoch
         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)
@@ -824,25 +890,18 @@ class StatisticsActivity : AppCompatActivity() {
             return dateTime.time.time / 1000
         }
 
-        // convert seconds to weeks since epoch
         fun unixToWeeks(seconds: Long): Int {
+            //val dateTime = Calendar.getInstance()
             dateTime.time = Date(seconds * 1000)
-            val years = dateTime.get(Calendar.YEAR) - 1970
+            val years = dateTime.get(Calendar.YEAR)
             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 {
+            //val dateTime = Calendar.getInstance()
             dateTime.time = Date(0)
-            dateTime.set(Calendar.YEAR, 1970 + weeks / 52)
+            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)
@@ -851,16 +910,17 @@ class StatisticsActivity : AppCompatActivity() {
             return dateTime.time.time / 1000
         }
 
-        // convert seconds to days since epoch
         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 days to seconds since epoch
+        // 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)
@@ -884,6 +944,42 @@ class StatisticsActivity : AppCompatActivity() {
             return newArray
         }
 
+/*
+        fun colorGradient(fromColor: Int, toColor: Int, percent: Int): Int {
+            assert(percent in 0..100)
+
+            val a1 = fromColor.shr(24).and(0xff)
+            val r1 = fromColor.shr(16).and(0xff)
+            val g1 = fromColor.shr(8).and(0xff)
+            val b1 = fromColor.shr(0).and(0xff)
+
+            //Log.d(TAG, "${a1.toHexString()} ${r1.toHexString()} ${g1.toHexString()}  ${b1.toHexString()}")
+
+            val a2 = toColor.shr(24).and(0xff)
+            val r2 = toColor.shr(16).and(0xff)
+            val g2 = toColor.shr(8).and(0xff)
+            val b2 = toColor.shr(0).and(0xff)
+
+            //Log.d(TAG, "${a2.toHexString()} ${r2.toHexString()} ${g2.toHexString()}  ${b2.toHexString()}")
+
+            val pc = (percent.toFloat() / 100F).coerceIn(0F, 1F)
+            val a = a1 + (pc * abs(a2 - a1)).toInt()
+            val r = r1 + (pc * abs(r2 - r1)).toInt()
+            val g = g1 + (pc * abs(g2 - g1)).toInt()
+            val b = a1 + (pc * abs(b2 - b1)).toInt()
+
+            //Log.d(TAG, "${a.toHexString()} ${r.toHexString()} ${g.toHexString()}  ${b.toHexString()}")
+            val Red = r.shl(16).and(0x00FF0000)
+            val Green = g.shl(8).and(0x0000FF00)
+            val Blue = b.and(0x000000FF)
+            val aa = a.shl(24).and(0xFF000000.toInt())
+            val color = aa.or(Red).or(Green).or(Blue)
+            return color
+            //Log.d(TAG, "c: ${c.toHexString()} ${color.toInt().toHexString()}")
+            //return Color.argb(a, r, g, b)
+        }
+    */
+
         // for debugging
         fun debugBarValues(values: ArrayList<BarEntry>) {
             for (value in values) {

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
     }
@@ -174,7 +162,7 @@ class LunaEvent: Comparable<LunaEvent> {
                     Type.DIAPERCHANGE_PEE,
                     Type.PUKE -> R.string.log_amount_dialog_description
                     Type.WEIGHT -> R.string.log_weight_dialog_description
-                    Type.SLEEP -> R.string.log_duration_dialog_description
+                    Type.SLEEP -> R.string.log_sleep_dialog_description
                     else -> R.string.log_unknown_dialog_description
                 }
             )

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

@@ -9,15 +9,10 @@ import java.util.Date
 class DateUtils {
     companion object {
         /**
-         * Format time duration in seconds as e.g. "2 hours, 1 min", rounded to minutes.
+         * Format time duration in seconds as e.g. "2 hours, 1 min".
          * Used for the duration to the next/previous event in the event details dialog.
          */
         fun formatTimeDuration(context: Context, secondsDiff: Long): String {
-            val adjusted = (secondsDiff + 30) - (secondsDiff + 30) % 60
-            return formatTimeDurationExact(context, adjusted)
-        }
-
-        fun formatTimeDurationExact(context: Context, secondsDiff: Long): String {
             var seconds = secondsDiff
 
             val years = (seconds / (365 * 24 * 60 * 60F)).toLong()
@@ -61,11 +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/layout/dialog_edit_bottle.xml

@@ -18,7 +18,6 @@
             android:layout_height="wrap_content"/>
 
         <TextView
-            android:id="@+id/dialog_number_picker_unit"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="10dp"

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

@@ -11,14 +11,12 @@
         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:layout_height="wrap_content"
         android:gravity="center"
         android:layout_marginTop="20dp"
         android:layout_marginHorizontal="10dp"
@@ -29,61 +27,29 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:text="@string/dialog_duration_button_minus_5"/>
+            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/dialog_duration_button_now"/>
-
-        <Button
-            android:id="@+id/dialog_date_duration_clear"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="@string/dialog_duration_button_clear"/>
+            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="@string/dialog_duration_button_plus_5"/>
+            android:text="+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:id="@+id/dialog_date_picker"
         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>
+        android:layout_gravity="center"
+        android:layout_marginTop="20dp"/>
 
 </LinearLayout>

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

@@ -13,6 +13,7 @@
         <item>@string/statistics_sleep_sum</item>
         <item>@string/statistics_sleep_events</item>
         <item>@string/statistics_sleep_pattern</item>
+        <item>@string/statistics_medicine_events</item>
     </string-array>
 
     <string-array name="StatisticsTypeValues">
@@ -21,6 +22,7 @@
         <item>SLEEP_SUM</item>
         <item>SLEEP_EVENTS</item>
         <item>SLEEP_PATTERN</item>
+        <item>MEDICINE_EVENTS</item>
     </string-array>
 
     <string-array name="StatisticsTimeLabels">

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

@@ -130,7 +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_duration_dialog_description">Set duration:</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>
@@ -160,11 +160,6 @@
     <string name="dialog_event_detail_notes">Notes</string>
     <string name="dialog_event_detail_signature">by %s</string>
 
-    <string name="dialog_duration_button_clear">Clear</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>