statistics: complete removal

app/build.gradle.kts

@@ -65,5 +65,4 @@ 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

@@ -30,10 +30,6 @@
             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

@@ -1284,18 +1284,6 @@ 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

@@ -1,947 +0,0 @@
-package it.danieleverducci.lunatracker
-
-import android.graphics.Canvas
-import android.graphics.Color
-import android.os.Bundle
-import android.util.Log
-import android.view.View
-import android.widget.AdapterView
-import android.widget.ArrayAdapter
-import android.widget.Spinner
-import android.widget.TextView
-import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
-import androidx.core.graphics.toColorInt
-import com.github.mikephil.charting.animation.ChartAnimator
-import com.github.mikephil.charting.charts.BarChart
-import com.github.mikephil.charting.data.BarData
-import com.github.mikephil.charting.data.BarDataSet
-import com.github.mikephil.charting.data.BarEntry
-import com.github.mikephil.charting.data.Entry
-import com.github.mikephil.charting.formatter.ValueFormatter
-import com.github.mikephil.charting.highlight.Highlight
-import com.github.mikephil.charting.interfaces.dataprovider.BarDataProvider
-import com.github.mikephil.charting.listener.OnChartValueSelectedListener
-import com.github.mikephil.charting.renderer.HorizontalBarChartRenderer
-import com.github.mikephil.charting.utils.ViewPortHandler
-import it.danieleverducci.lunatracker.entities.LunaEvent
-import utils.DateUtils
-import utils.NumericUtils
-import java.text.SimpleDateFormat
-import java.util.Calendar
-import java.util.Date
-import java.util.Locale
-import kotlin.math.max
-import kotlin.math.min
-
-class StatisticsActivity : AppCompatActivity() {
-    var lastToastShown = 0L
-
-    lateinit var barChart: BarChart
-    lateinit var noDataTextView: TextView
-    lateinit var graphTypeSpinner: Spinner
-    lateinit var timeRangeSpinner: Spinner
-
-    lateinit var unixToSpan: (Long) -> Int
-    lateinit var spanToUnix: (Int) -> Long
-
-    enum class GraphType {
-        BOTTLE_EVENTS,
-        BOTTLE_SUM,
-        SLEEP_SUM,
-        SLEEP_EVENTS,
-        SLEEP_PATTERN
-    }
-
-    enum class TimeRange {
-        DAY,
-        WEEK,
-        MONTH
-    }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        setContentView(R.layout.activity_statistics)
-
-        val logbookName = intent.getStringExtra("LOOGBOOK_NAME")
-        if (logbookName == null) {
-            finish()
-            return
-        }
-
-        noDataTextView = findViewById(R.id.no_data)
-
-        barChart = findViewById(R.id.bar_chart)
-        barChart.setBackgroundColor(Color.WHITE)
-        barChart.description.text = logbookName
-        barChart.setDrawValueAboveBar(false)
-
-        barChart.axisLeft.setAxisMinimum(0F)
-        barChart.axisLeft.setDrawGridLines(false)
-        barChart.axisLeft.setDrawLabels(false)
-
-        barChart.axisRight.setDrawGridLines(false)
-        barChart.axisRight.setDrawLabels(false)
-
-        barChart.xAxis.setDrawLabels(true)
-        barChart.xAxis.setDrawAxisLine(false)
-
-        barChart.isScaleXEnabled = false
-        barChart.isScaleYEnabled = true
-
-        graphTypeSpinner = findViewById(R.id.graph_type_selection)
-        timeRangeSpinner = findViewById(R.id.time_range_selection)
-
-        setupSpinner(graphTypeSelection.name,
-            R.id.graph_type_selection,
-            R.array.StatisticsTypeLabels,
-            R.array.StatisticsTypeValues,
-            object : SpinnerItemSelected {
-                override fun call(newValue: String?) {
-                    //Log.d("event", "new value: $newValue")
-                    newValue ?: return
-                    graphTypeSelection = GraphType.valueOf(newValue)
-                    showGraph()
-                }
-            }
-        )
-
-        setupSpinner(timeRangeSelection.name,
-            R.id.time_range_selection,
-            R.array.StatisticsTimeLabels,
-            R.array.StatisticsTimeValues,
-            object : SpinnerItemSelected {
-                override fun call(newValue: String?) {
-                    //Log.d("event", "new value: $newValue")
-                    newValue ?: return
-                    timeRangeSelection = TimeRange.valueOf(newValue)
-                    setSpans()
-                    showGraph()
-                }
-            }
-        )
-
-        setSpans()
-        showGraph()
-    }
-
-    fun setSpans() {
-        unixToSpan  = when (timeRangeSelection) {
-            TimeRange.DAY -> { unix: Long -> unixToDays(unix) }
-            TimeRange.WEEK -> { unix: Long -> unixToWeeks(unix) }
-            TimeRange.MONTH -> { unix: Long -> unixToMonths(unix) }
-        }
-
-        spanToUnix = when (timeRangeSelection) {
-            TimeRange.DAY -> { span: Int -> daysToUnix(span) }
-            TimeRange.WEEK -> { span: Int -> weeksToUnix(span) }
-            TimeRange.MONTH -> { span: Int -> monthsToUnix(span) }
-        }
-    }
-
-    data class SleepRange(val start: Long, var end: Long)
-
-    fun toSleepRanges(events: List<LunaEvent>): ArrayList<SleepRange> {
-        val ranges = arrayListOf<SleepRange>()
-        val now = System.currentTimeMillis() / 1000
-
-        // Transform events into time ranges.
-        // Merge overlapping times and extend
-        // ongoing sleep events until now.
-        var warningShown = false
-        for (event in events) {
-            val startTime = event.time
-            val endTime = if (event.quantity == 0) {
-                now
-            } else {
-                event.time + event.quantity
-            }
-
-            // handle overlap
-            val previousRange = ranges.lastOrNull()
-            if (previousRange != null && previousRange.end > startTime) {
-                // cap previous range to avoid overlap
-                previousRange.end = startTime
-                if (!warningShown) {
-                    Toast.makeText(applicationContext, "Overlapping sleep event at ${DateUtils.formatDateTime(startTime)}", Toast.LENGTH_SHORT).show()
-                    warningShown = true
-                }
-            }
-
-            ranges.add(SleepRange(startTime, endTime))
-        }
-
-        return ranges
-    }
-
-    fun showSleepPatternBarGraphSlotted(state: GraphState) {
-        val ranges = toSleepRanges(state.events)
-        val values = ArrayList<BarEntry>()
-        val stack = ArrayList(List(state.endSpan - state.startSpan + 1) { IntArray(24 * 60 * 60 / SLEEP_PATTERN_GRANULARITY) })
-
-        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)
-                val dayEnd =  daysToUnix(i + 1)
-                val sleepBegin = max(mid, dayBegin)
-                val sleepEnd = min(end, dayEnd)
-
-                if (sleepBegin != sleepEnd) {
-                    assert(dayBegin <= dayEnd)
-                    assert(sleepBegin <= sleepEnd)
-                    val iBegin = (sleepBegin - dayBegin) / SLEEP_PATTERN_GRANULARITY
-                    val iEnd = iBegin + (sleepEnd - sleepBegin) / SLEEP_PATTERN_GRANULARITY
-                    //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
-                    }
-                }
-                mid = sleepEnd
-            }
-        }
-
-        for (range in ranges) {
-            // a sleep event can span to another day
-            // distribute sleep time over the days
-            val startUnix = range.start
-            val endUnix = range.end
-            val begIndex = unixToSpan(startUnix)
-            val endIndex = unixToSpan(endUnix)
-            var mid = startUnix
-
-            //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)
-
-                mid = sleepEnd
-            }
-        }
-
-        fun mapColor(occurrences: Int, maxOccurrences: Int): Int {
-            // occurrences: number of reported sleeps in a specific time slot
-            // maxOccurrences: maximum number of days with data that can contribute to maxOccurrences
-            assert(maxOccurrences > 0)
-            assert(occurrences <= maxOccurrences)
-
-            // map to color
-            val q = occurrences.toFloat() / maxOccurrences.toFloat()
-            val i = q * (SLEEP_PATTERN_COLORS.size - 1).toFloat()
-            return SLEEP_PATTERN_COLORS[i.toInt()]
-        }
-
-        val allColors = ArrayList<Int>()
-
-        // convert array of time slots that represent a day to value and color arrays used by chart library
-        for ((index, dayArray) in stack.withIndex()) {
-            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
-
-            //Log.d(TAG, "index: $index: daysWithData: $daysWithData, 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
-            for ((i, v) in dayArray.withIndex()) {
-                if (i == 0) {
-                    prevIndex = i
-                    prevValue = v
-                } else if (prevValue != v) {
-                    vals.add((i - prevIndex).toFloat())
-                    allColors.add(mapColor(prevValue.coerceAtMost(daysWithData), daysWithData))
-                    prevIndex = i
-                    prevValue = v
-                }
-            }
-
-            if (prevIndex != -1) {
-                vals.add((dayArray.size - prevIndex).toFloat())
-                allColors.add(mapColor(prevValue, daysWithData))
-            }
-
-            //Log.d(TAG, "Range $index, vals: ${vals.joinToString { it.toInt().toString() }}") //, allColors: ${allColors.joinToString { it.toString() }}")
-
-            //Log.d(TAG, "index: ${index.toFloat()}")
-            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) {
-                    return
-                }
-
-                val index = e.x.toInt()
-                if (index !in 0..values.size) {
-                    return
-                }
-
-                val value = values[index]
-                if (value.yVals == null || h.stackIndex !in 0..value.yVals.size) {
-                    return
-                }
-
-                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
-                    // only show one Toast message after another
-                    return
-                }
-
-                val dayStartUnix = daysToUnix(unixToDays(state.startUnix) + index)
-
-                //Log.d(TAG, "startUnix: ${Date(startUnix * 1000)}, x: ${e.x.toInt()}, dayStartUnix: ${Date(dayStartUnix * 1000)}")
-                val startSeconds =
-                    SLEEP_PATTERN_GRANULARITY * value.yVals.sliceArray(0..<h.stackIndex)
-                        .fold(0) { acc, y -> acc + y.toInt() }
-                val durationSeconds =
-                    SLEEP_PATTERN_GRANULARITY * value.yVals[h.stackIndex].toInt()
-                val endSeconds = startSeconds + durationSeconds
-
-                val format = SimpleDateFormat("HH:mm", Locale.getDefault())
-                val startTimeString =
-                    format.format((dayStartUnix + startSeconds) * 1000).toString()
-                val endTimeString =
-                    format.format((dayStartUnix + endSeconds) * 1000).toString()
-                val durationString = DateUtils.formatTimeDuration(applicationContext, durationSeconds.toLong())
-
-                val daysWithData =
-                    stack[e.x.toInt()][startSeconds / SLEEP_PATTERN_GRANULARITY]
-                val daysWithDataMax = state.dayCounter.countDaysWithData(
-                    spanToUnix(state.startSpan + index),
-                    spanToUnix(state.startSpan + index + 1)
-                )
-
-                // percentage of days in this span where baby is asleep in this time slot
-                val pc = if (daysWithDataMax > 0) {
-                    (100F * daysWithData.toFloat() / daysWithDataMax.toFloat()).toInt()
-                } else {
-                    // no data for this day
-                    0
-                }
-
-                Toast.makeText(
-                    applicationContext,
-                    "$startTimeString - $endTimeString ($durationString) - ${pc}%",
-                    Toast.LENGTH_LONG
-                ).show()
-                lastToastShown = System.currentTimeMillis()
-            }
-
-            override fun onNothingSelected() {}
-        })
-
-        val set1 = BarDataSet(values, "")
-        val data = BarData(set1)
-        set1.colors = allColors
-
-        set1.setDrawValues(false) // usually too many values
-        set1.isHighlightEnabled = true
-
-        set1.setDrawIcons(false)
-
-        //Log.d(TAG, "showSleepPatternBarGraphSlotted; barChart.xAxis.labelCount: ${barChart.xAxis.labelCount}, barChart.visibleXRange: ${barChart.visibleXRange}, barChart.xAxis.isCenterAxisLabelsEnabled: ${barChart.xAxis.isCenterAxisLabelsEnabled}, barChart.isAutoScaleMinMaxEnabled: ${barChart.isAutoScaleMinMaxEnabled}, barChart.isScaleXEnabled: ${barChart.isScaleXEnabled}, barChart.isScaleYEnabled: ${barChart.isScaleYEnabled}")
-
-        data.setValueTextSize(12f)
-        barChart.setData(data)
-
-        // does not work quite right yet
-        //Log.d(TAG, "xChartMax: ${barChart.xChartMax}")
-        //barChart.centerViewTo(barChart.xChartMax, 0F, YAxis.AxisDependency.LEFT)
-
-        barChart.legend.isEnabled = false
-        val valueCount = min(values.size, 24)
-        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
-        barChart.xAxis.setLabelCount(valueCount)
-        barChart.xAxis.setCenterAxisLabels(false)
-        barChart.invalidate()
-    }
-
-    // Sleep pattern bars that do not use time slots.
-    // This is useful/nicer for bars that only represent data of a singular days.
-    fun showSleepPatternBarGraphDaily(state: GraphState) {
-        val ranges = toSleepRanges(state.events)
-        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), FloatArray(0)) })
-
-        // stack awake/sleep durations
-        fun stackValuePattern(index: Int, spanBegin: Long, spanEnd: Long, begin: Long, end: Long) {
-            assert(begin in spanBegin..spanEnd)
-            assert(end in spanBegin..spanEnd)
-            assert(begin <= end)
-
-            val x = values[index].x
-            val yVals  = values[index].yVals // alternating sleep/awake durations
-            val y = yVals.fold(0F) { acc, next -> acc + next }
-
-            // y value is seconds when last awake
-            val awakeDuration = max(begin - spanBegin - y.toLong(), 0L)
-            val sleepDuration = end - begin
-
-            if ((awakeDuration + sleepDuration) > (spanEnd - spanBegin)) {
-                Log.e(TAG, "Invalid sleep duration, exceeds day/week or month bounds => ignore value")
-                return
-            }
-
-            // update value
-            val newYVals = appendToFloatArray(yVals, awakeDuration.toFloat(), sleepDuration.toFloat())
-            values[index] = BarEntry(x, newYVals)
-        }
-
-        for (range in ranges) {
-            // a sleep event can span to another day
-            // distribute sleep time over the days
-            val startUnix = range.start
-            val endUnix = range.end
-            val begIndex = unixToSpan(startUnix)
-            val endIndex = unixToSpan(endUnix)
-            var mid = startUnix
-
-            //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)
-
-                mid = sleepEnd
-            }
-        }
-
-        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.isHighlightEnabled = true
-
-        barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
-            override fun onValueSelected(e: Entry?, h: Highlight?) {
-                if (e == null || h == null) {
-                    return
-                }
-
-                val index = e.x.toInt()
-                if (index !in 0..values.size) {
-                    return
-                }
-
-                val value = values[index]
-                if (value.yVals == null || h.stackIndex !in 0..value.yVals.size) {
-                    return
-                }
-
-                if ((lastToastShown + TOAST_FREQUENCY_MS) > System.currentTimeMillis()) {
-                    // only show one Toast message after another
-                    return
-                }
-
-                val duration = value.yVals[h.stackIndex].toInt()
-                val durationString = DateUtils.formatTimeDuration(applicationContext, duration.toLong())
-
-                val offsetUnix = spanToUnix(state.startSpan + e.x.toInt()) // start of the time span (day/week/month)
-                val startUnix = offsetUnix + value.yVals.sliceArray(0..<h.stackIndex).fold(0) { acc, y -> acc + y.toInt() }
-                val endUnix = startUnix + duration
-
-                val format = SimpleDateFormat("HH:mm", Locale.getDefault())
-                val startTimeString = format.format(startUnix * 1000).toString()
-                val endTimeString = format.format(endUnix * 1000).toString()
-                Toast.makeText(applicationContext, "$startTimeString - $endTimeString ($durationString)", Toast.LENGTH_LONG).show()
-                lastToastShown = System.currentTimeMillis()
-            }
-
-            override fun onNothingSelected() {}
-        })
-        //Log.d(TAG, "showSleepPatternBarGraphDaily: values.size: ${values.size}, barChart.xAxis.labelCount: ${barChart.xAxis.labelCount}")
-        set1.setDrawIcons(false)
-
-        data.setValueTextSize(12f)
-        barChart.setData(data)
-
-        //Log.d(TAG, "showSleepPatternBarGraphDaily: new barChart.xAxis.labelCount: ${barChart.xAxis.labelCount}")
-
-        barChart.legend.isEnabled = false
-        val valueCount = min(values.size, 24)
-        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
-        barChart.xAxis.setLabelCount(valueCount)
-        barChart.xAxis.setCenterAxisLabels(false)
-        barChart.invalidate()
-    }
-
-    // Make sure the value on the bar is not out of screen.
-    class CustomHorizontalBarChartRenderer(chart: BarDataProvider, animator: ChartAnimator, viewPortHandler: ViewPortHandler): HorizontalBarChartRenderer(chart, animator, viewPortHandler) {
-        override fun drawValue(
-            c: Canvas,
-            valueText: String,
-            x: Float,
-            y: Float,
-            color: Int
-        ) {
-            mValuePaint.setColor(color)
-            c.drawText(valueText, x.coerceAtLeast(60F), y, mValuePaint)
-        }
-
-    }
-
-    fun showSleepBarGraph(state: GraphState) {
-        val ranges = toSleepRanges(state.events)
-        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
-        //Log.d(TAG, "startUnix: ${Date(state.startUnix * 1000)}, endUnix: ${Date(state.endUnix * 1000)}")
-
-        for (range in ranges) {
-            // a sleep event can span to another day
-            // distribute sleep time over the days
-            val startUnix = range.start
-            val endUnix = range.end
-            val begIndex = unixToSpan(startUnix)
-            val endIndex = unixToSpan(endUnix)
-            var mid = startUnix
-
-            //Log.d(TAG, "beginIndex: $begIndex, endIndex: $endIndex, startUnix: ${Date(startUnix * 1000)} ($startUnix), endUnix: ${Date(endUnix * 1000)} ($endUnix)")
-            //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, "i: $i, 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)
-
-                if (graphTypeSelection == GraphType.SLEEP_SUM) {
-                    values[index].y += duration.toFloat()
-                } else if (graphTypeSelection == GraphType.SLEEP_EVENTS) {
-                    values[index].y += 1F
-                } else {
-                    Log.e(TAG, "Unexpected graph type.")
-                    return
-                }
-
-                mid = sleepEnd
-            }
-        }
-
-        for (index in values.indices) {
-            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
-            if (daysWithData == 0) {
-                assert(values[index].y == 0F)
-            } else {
-                values[index].y /= daysWithData
-            }
-        }
-
-        val set1 = BarDataSet(values, "")
-        val data = BarData(set1)
-        set1.setDrawValues(true)
-        set1.isHighlightEnabled = false
-
-        data.setValueFormatter(object : ValueFormatter() {
-            override fun getFormattedValue(value: Float): String {
-                val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
-                return when (graphTypeSelection) {
-                    GraphType.SLEEP_EVENTS -> {
-                        prefix + value.toInt().toString()
-                    }
-                    GraphType.SLEEP_SUM -> {
-                        prefix + DateUtils.formatTimeDuration(applicationContext, value.toLong())
-                    }
-                    else -> {
-                        Log.e(TAG, "unhandled graphTypeSelection $graphTypeSelection")
-                        prefix + value.toInt().toString()
-                    }
-                }
-            }
-        })
-
-        set1.setDrawIcons(false)
-
-        data.setValueTextSize(12f)
-        barChart.setData(data)
-
-        barChart.setRenderer(CustomHorizontalBarChartRenderer(barChart, barChart.getAnimator(), barChart.getViewPortHandler()))
-
-        barChart.legend.isEnabled = false
-        val valueCount = min(values.size, 24)
-        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
-        barChart.xAxis.setLabelCount(valueCount)
-        barChart.xAxis.setCenterAxisLabels(false)
-        barChart.invalidate()
-    }
-
-    fun showBottleBarGraph(state: GraphState) {
-        val values = ArrayList(List(state.endSpan - state.startSpan + 1) { BarEntry(it.toFloat(), 0F) })
-
-        for (event in state.events) {
-            val index = unixToSpan(event.time) - state.startSpan
-
-            state.dayCounter.setDaysWithData(event.time, event.time)
-
-            if (graphTypeSelection == GraphType.BOTTLE_EVENTS) {
-                values[index].y += 1F
-            } else if (graphTypeSelection == GraphType.BOTTLE_SUM) {
-                values[index].y += event.quantity.toFloat()
-            } else {
-                Log.e(TAG, "unhandled graphTypeSelection: $graphTypeSelection")
-                return
-            }
-        }
-
-        for (index in values.indices) {
-            val daysWithData = state.dayCounter.countDaysWithData(spanToUnix(state.startSpan + index), spanToUnix(state.startSpan + index + 1))
-            //Log.d(TAG, "values[$index].y: ${values[index].y}, 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
-        val data = BarData(set1)
-
-        data.setValueFormatter(object : ValueFormatter() {
-            override fun getFormattedValue(value: Float): String {
-                val prefix = if (timeRangeSelection == TimeRange.DAY) { "" } else { "⌀ " }
-                //Log.d(TAG, "getFormattedValue ${dataTypeSelectionValue} ${eventTypeSelectionValue}")
-                return when (graphTypeSelection) {
-                    GraphType.BOTTLE_EVENTS -> {
-                        prefix + value.toInt().toString()
-                    }
-                    GraphType.BOTTLE_SUM -> {
-                        prefix + NumericUtils(applicationContext).formatEventQuantity(LunaEvent.Type.BABY_BOTTLE, value.toInt())
-                    }
-                    else -> {
-                        Log.e(TAG, "unhandled graphTypeSelection")
-                        prefix + value.toInt()
-                    }
-                }
-            }
-        })
-
-        data.setValueTextSize(12f)
-        barChart.setData(data)
-
-        barChart.setRenderer(CustomHorizontalBarChartRenderer(barChart, barChart.getAnimator(), barChart.getViewPortHandler()))
-
-        val valueCount = min(values.size, 24)
-        barChart.setVisibleXRangeMaximum(valueCount.toFloat())
-        barChart.xAxis.setLabelCount(valueCount)
-        barChart.xAxis.setCenterAxisLabels(false)
-        barChart.invalidate()
-    }
-
-    class DayCounter(val startDays: Int, val stopDays: Int) {
-        val daysWithData = BooleanArray(stopDays - startDays + 1)
-
-        // count days in a span that have data
-        // e.g. return 7 (days) for applied span of a week where there is data for every day 
-        fun countDaysWithData(beginUnix: Long, endUnix: Long): Int {
-            val beginDays = unixToDays(beginUnix)
-            val endDays = unixToDays(endUnix)
-            //Log.d(TAG, "countDaysWithData: beginDays: $beginDays, endDays: $endDays, ${Date(beginUnix * 1000)} - ${Date(endUnix * 1000)}")
-            var count = 0
-            for (i in (beginDays - startDays)..<(endDays - startDays)) {
-                //Log.d(TAG, "countDaysWithData: i: $i, size: ${daysWithData.size}")
-                count += if (daysWithData[i]) { 1 } else { 0 }
-            }
-            return count
-        }
-
-        fun setDaysWithData(beginUnix: Long, endUnix: Long) {
-            val beginDays = unixToDays(beginUnix)
-            val endDays = unixToDays(endUnix)
-            assert(beginDays <= endDays)
-            assert(startDays <= beginDays)
-            for (i in (beginDays - startDays)..(endDays - startDays)) {
-                daysWithData[i] = true
-            }
-        }
-    }
-
-    data class GraphState(val events: List<LunaEvent>, val dayCounter: DayCounter, val startUnix: Long, val endUnix: Long, val startSpan: Int, val endSpan: Int)
-
-    fun showGraph() {
-        //Log.d(TAG, "showGraph: graphTypeSelection: $graphTypeSelection, timeRangeSelection: $timeRangeSelection")
-        barChart.fitScreen()
-        barChart.data?.clearValues()
-        barChart.xAxis.valueFormatter = null
-        barChart.notifyDataSetChanged()
-        barChart.clear()
-        barChart.invalidate()
-        //Log.d(TAG, "resetBarChart; barChart.xAxis.labelCount: ${barChart.xAxis.labelCount}, barChart.visibleXRange: ${barChart.visibleXRange}, barChart.xAxis.isCenterAxisLabelsEnabled: ${barChart.xAxis.isCenterAxisLabelsEnabled}, barChart.isAutoScaleMinMaxEnabled: ${barChart.isAutoScaleMinMaxEnabled}, barChart.isScaleXEnabled: ${barChart.isScaleXEnabled}, barChart.isScaleYEnabled: ${barChart.isScaleYEnabled}")
-
-        val type = when (graphTypeSelection) {
-            GraphType.BOTTLE_EVENTS,
-            GraphType.BOTTLE_SUM -> LunaEvent.Type.BABY_BOTTLE
-            GraphType.SLEEP_EVENTS,
-            GraphType.SLEEP_SUM,
-            GraphType.SLEEP_PATTERN -> LunaEvent.Type.SLEEP
-        }
-
-
-        val events = MainActivity.allEvents.filter { it.type == type }.sortedBy { it.time }
-
-        if (events.isEmpty()) {
-            barChart.visibility = View.GONE
-            noDataTextView.visibility = View.VISIBLE
-            return
-        } else {
-            barChart.visibility = View.VISIBLE
-            noDataTextView.visibility = View.GONE
-        }
-
-        // unix time span of all events
-        val startUnix = events.minOf { it.time }
-        val endUnix = System.currentTimeMillis() / 1000
-
-        // convert to days, weeks or months
-        val startSpan = unixToSpan(startUnix)
-        val endSpan = unixToSpan(endUnix)
-
-        // days when the a day/week/month starts/ends
-        val startDays = unixToDays(spanToUnix(startSpan))
-        val endDays = unixToDays(spanToUnix(endSpan + 1)) // until end of next span
-        val dayCounter = DayCounter(startDays, endDays)
-
-        //Log.d(TAG, "startUnix: ${Date(1000 * startUnix)}, endUnix: ${Date(1000 * endUnix)}, startSpan: ${Date(1000 * spanToUnix(startSpan))}, endSpan: ${Date(1000 * spanToUnix(endSpan))}, startDaysUnix: ${Date(daysToUnix(startDays) * 1000)}. endDaysUnix: ${Date(daysToUnix(endDays) * 1000)}")
-
-        // print dates
-        barChart.xAxis.valueFormatter = object: ValueFormatter() {
-            override fun getFormattedValue(value: Float): String {
-                val index = value.toInt()
-                val unixSeconds = spanToUnix(startSpan + index)
-
-                val dateTime = Calendar.getInstance()
-                dateTime.time = Date(1000L * unixSeconds)
-                val year = dateTime.get(Calendar.YEAR)
-                val month = dateTime.get(Calendar.MONTH) + 1 // month starts at 0
-                val week = dateTime.get(Calendar.WEEK_OF_YEAR)
-                val day = dateTime.get(Calendar.DAY_OF_MONTH)
-
-                //Log.d(TAG, "index: $index, unixSeconds: ${Date(1000 * unixSeconds)}, day: $day, week: $week, month: $month, year: $year")
-
-                // Adjust years if the first week of a year starts in the previous year.
-                val years = if (month == 12 && week == 1) {
-                    year + 1
-                } else {
-                    year
-                }
-
-                val days = "%02d".format(day)
-                val weeks = "%02d".format(week)
-                val months = "%02d".format(month)
-
-                return when (timeRangeSelection) {
-                    TimeRange.DAY -> "$days/$months/$years"
-                    TimeRange.WEEK -> "$weeks/$years"
-                    TimeRange.MONTH -> "$months/$years"
-                }
-            }
-        }
-
-        val state = GraphState(events, dayCounter, startUnix, endUnix, startSpan, endSpan)
-
-        when (graphTypeSelection) {
-            GraphType.BOTTLE_EVENTS,
-            GraphType.BOTTLE_SUM -> showBottleBarGraph(state)
-            GraphType.SLEEP_EVENTS,
-            GraphType.SLEEP_SUM -> showSleepBarGraph(state)
-            GraphType.SLEEP_PATTERN -> if (timeRangeSelection == TimeRange.DAY) {
-                // specialized pattern bar for daily view (optional)
-                showSleepPatternBarGraphDaily(state)
-            } else {
-                showSleepPatternBarGraphSlotted(state)
-            }
-        }
-    }
-
-    private interface SpinnerItemSelected {
-        fun call(newValue: String?)
-    }
-
-    private fun setupSpinner(
-        currentValue: String,
-        spinnerId: Int,
-        arrayId: Int,
-        arrayValuesId: Int,
-        callback: SpinnerItemSelected
-    ) {
-        val arrayValues = resources.getStringArray(arrayValuesId)
-        val spinner = findViewById<Spinner>(spinnerId)
-        val spinnerAdapter =
-            ArrayAdapter.createFromResource(this, arrayId, R.layout.statistics_spinner_item)
-
-        //Log.d(TAG, "spinner ${arrayValues.indexOf(currentValue)} (${arrayValues.joinToString { it }})")
-
-        spinner.adapter = spinnerAdapter
-        spinner.setSelection(arrayValues.indexOf(currentValue))
-        spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
-            var check = 0
-            override fun onItemSelected(parent: AdapterView<*>?, view: View?, pos: Int, id: Long) {
-                if (pos >= arrayValues.size) {
-                    Toast.makeText(
-                        this@StatisticsActivity,
-                        "pos out of bounds: $arrayValues", Toast.LENGTH_SHORT
-                    ).show()
-                    return
-                }
-                if (check++ > 0) {
-                    callback.call(arrayValues[pos])
-                }
-            }
-
-            override fun onNothingSelected(parent: AdapterView<*>?) {
-                // ignore
-            }
-        }
-    }
-
-    companion object {
-        const val TAG = "StatisticsActivity"
-
-        // 15 min steps
-        const val SLEEP_PATTERN_GRANULARITY = 15 * 60
-
-        // Time between toast messages (to prevent jams)
-        const val TOAST_FREQUENCY_MS = 3500
-
-        // color gradient
-        val SLEEP_PATTERN_COLORS = arrayOf(
-            "#FFFFFF".toColorInt(), "#EEF5F7".toColorInt(), "#DDEBEF".toColorInt(), "#CCE2E7".toColorInt(),
-            "#BBD8DF".toColorInt(), "#AACED7".toColorInt(), "#99C4CF".toColorInt(), "#88BAC7".toColorInt(),
-            "#77B1BF".toColorInt(), "#66A7B7".toColorInt(), "#559DAF".toColorInt(), "#4493A7".toColorInt(),
-            "#33899F".toColorInt(), "#228097".toColorInt(), "#11768F".toColorInt(), "#006C87".toColorInt()
-        )
-
-        var graphTypeSelection = GraphType.SLEEP_SUM
-        var timeRangeSelection = TimeRange.DAY
-
-        private val dateTime = Calendar.getInstance() // scratch pad
-
-        // convert month to seconds since epoch
-        fun unixToMonths(seconds: Long): Int {
-            dateTime.time = Date(seconds * 1000)
-            val years = dateTime.get(Calendar.YEAR)
-            val months = dateTime.get(Calendar.MONTH)
-            return 12 * years + months
-        }
-
-        // convert month to seconds since epoch
-        fun monthsToUnix(months: Int): Long {
-            dateTime.time = Date(0)
-            dateTime.set(Calendar.YEAR, months / 12)
-            dateTime.set(Calendar.MONTH, months % 12)
-            dateTime.set(Calendar.HOUR, 0)
-            dateTime.set(Calendar.MINUTE, 0)
-            dateTime.set(Calendar.SECOND, 0)
-            return dateTime.time.time / 1000
-        }
-
-        // convert seconds to weeks since epoch
-        fun unixToWeeks(seconds: Long): Int {
-            dateTime.time = Date(seconds * 1000)
-            val years = dateTime.get(Calendar.YEAR) - 1970
-            val weeks = dateTime.get(Calendar.WEEK_OF_YEAR)
-            val month = dateTime.get(Calendar.MONTH) + 1 // month starts at 0
-
-            if (month == 12 && weeks == 1) {
-                // The first week if the year might start in the previous year.
-                return 52 * (years + 1) + weeks
-            }
-
-            return 52 * years + weeks
-        }
-
-        // convert weeks to seconds since epoch
-        fun weeksToUnix(weeks: Int): Long {
-            dateTime.time = Date(0)
-            dateTime.set(Calendar.YEAR, 1970 + weeks / 52)
-            dateTime.set(Calendar.WEEK_OF_YEAR, weeks % 52)
-            dateTime.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY)
-            dateTime.set(Calendar.HOUR, 0)
-            dateTime.set(Calendar.MINUTE, 0)
-            dateTime.set(Calendar.SECOND, 0)
-            return dateTime.time.time / 1000
-        }
-
-        // convert seconds to days since epoch
-        fun unixToDays(seconds: Long): Int {
-            dateTime.time = Date(seconds * 1000)
-            val years = dateTime.get(Calendar.YEAR)
-            val days = dateTime.get(Calendar.DAY_OF_YEAR)
-            return 365 * years + days
-        }
-
-        // convert days to seconds since epoch
-        fun daysToUnix(days: Int): Long {
-            dateTime.time = Date(0)
-            dateTime.set(Calendar.YEAR, days / 365)
-            dateTime.set(Calendar.DAY_OF_YEAR, days % 365)
-            dateTime.set(Calendar.HOUR, 0)
-            dateTime.set(Calendar.MINUTE, 0)
-            dateTime.set(Calendar.SECOND, 0)
-            return dateTime.time.time / 1000
-        }
-
-        fun appendToFloatArray(array: FloatArray, vararg values: Float): FloatArray {
-            // create new array
-            val newArray = FloatArray(array.size + values.size)
-            // copy old values
-            for (i in array.indices) {
-                newArray[i] = array[i]
-            }
-            // add new values
-            for (i in values.indices) {
-                newArray[array.size + i] = values[i]
-            }
-            return newArray
-        }
-
-        // for debugging
-        fun debugBarValues(values: ArrayList<BarEntry>) {
-            for (value in values) {
-                val yVals = value.yVals
-                if (yVals != null) {
-                    val y = yVals.fold(0F) { acc, next -> acc + next }
-                    val yVals = yVals.joinToString { it.toString() }
-                    Log.d(TAG, "value: ${value.x} $y ($yVals)")
-                } else {
-                    Log.d(TAG, "value: ${value.x} ${value.y}")
-                }
-            }
-        }
-    }
-}

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

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

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

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

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

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

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

@@ -88,9 +88,6 @@
     <string name="no_connection_go_to_settings">Settings</string>
     <string name="no_connection_retry">Retry</string>
 
-    <string name="statistics_title">Statistics</string>
-    <string name="statistics_no_data">No Data</string>
-
     <string name="settings_dynamic_menu">Dynamic Menu</string>
     <string name="settings_dynamic_menu_desc">Populate the header menu with the most used events.</string>
     <string name="settings_title">Settings</string>
@@ -141,13 +138,6 @@
     <string name="measurement_unit_temperature_base_imperial" translatable="false">°F</string>
     <string name="measurement_unit_temperature_base_metric" translatable="false">°C</string>
 
-    <string name="statistics_bottle_events">Bottle Events</string>
-    <string name="statistics_bottle_sum">Bottle Per Day</string>
-    <string name="statistics_medicine_events">Medicine Events</string>
-    <string name="statistics_sleep_sum">Sleep Per Day</string>
-    <string name="statistics_sleep_events">Sleep Events</string>
-    <string name="statistics_sleep_pattern">Sleep Pattern</string>
-
     <string name="row_luna_event_description">Description</string>
     <string name="row_luna_event_quantity">Qty</string>
     <string name="row_luna_event_time">Time</string>