5422: add time graduations on tracker graph on dashboard.

6 files changed, 154 insertions, 45 deletions

diff --git a/app/src/main/java/foundation/e/privacycentralapp/common/GraphHolder.kt b/app/src/main/java/foundation/e/privacycentralapp/common/GraphHolder.kt
index d7a9dd0..5622806 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/common/GraphHolder.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/common/GraphHolder.kt
@@ -29,15 +29,19 @@ import androidx.core.content.ContextCompat
 import androidx.core.text.toSpannable
 import androidx.core.view.isVisible
 import com.github.mikephil.charting.charts.BarChart
+import com.github.mikephil.charting.components.AxisBase
 import com.github.mikephil.charting.components.MarkerView
 import com.github.mikephil.charting.components.XAxis
 import com.github.mikephil.charting.components.YAxis
+import com.github.mikephil.charting.components.YAxis.AxisDependency
 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.listener.OnChartValueSelectedListener
+import com.github.mikephil.charting.renderer.XAxisRenderer
 import com.github.mikephil.charting.utils.MPPointF
 import foundation.e.privacycentralapp.R
 import foundation.e.privacycentralapp.common.extensions.dpToPxF
@@ -50,60 +54,145 @@ class GraphHolder(val barChart: BarChart, val context: Context, val isMarkerAbov
         }
     var labels = emptyList<String>()
 
+    var graduations: List<String?>? = null
+
     private var isHighlighted = false
 
     init {
-        barChart.apply {
-            description = null
-            setTouchEnabled(true)
-            setScaleEnabled(false)
+        barChart.description = null
+        barChart.setTouchEnabled(true)
+        barChart.setScaleEnabled(false)
+
+        barChart.setDrawGridBackground(false)
+        barChart.setDrawBorders(false)
+        barChart.axisLeft.isEnabled = false
+        barChart.axisRight.isEnabled = false
+
+        barChart.legend.isEnabled = false
+
+        if (isMarkerAbove) prepareXAxisDashboardDay() else prepareXAxisMarkersBelow()
+
+        val periodMarker = PeriodMarkerView(context, isMarkerAbove)
+        periodMarker.chartView = barChart
+        barChart.marker = periodMarker
+
+        barChart.setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
+            override fun onValueSelected(e: Entry?, h: Highlight?) {
+                h?.let {
+                    val index = it.x.toInt()
+                    if (index >= 0 &&
+                        index < labels.size &&
+                        index < this@GraphHolder.data.size
+                    ) {
+                        val period = labels[index]
+                        val (blocked, leaked) = this@GraphHolder.data[index]
+                        periodMarker.setLabel(period, blocked, leaked)
+                    }
+                }
+                isHighlighted = true
+            }
 
-            setDrawGridBackground(false)
-            setDrawBorders(false)
-            axisLeft.isEnabled = false
-            axisRight.isEnabled = false
+            override fun onNothingSelected() {
+                isHighlighted = false
+            }
+        })
+    }
 
-            legend.isEnabled = false
+    private fun prepareXAxisDashboardDay() {
+        barChart.extraTopOffset = 44f
 
-            if (isMarkerAbove) {
-                extraTopOffset = 44f
-            } else {
-                extraBottomOffset = 44f
-            }
+        barChart.offsetTopAndBottom(0)
+
+        barChart.setXAxisRenderer(object : XAxisRenderer(barChart.viewPortHandler, barChart.xAxis, barChart.getTransformer(AxisDependency.LEFT)) {
+            override fun renderAxisLine(c: Canvas) {
+                mAxisLinePaint.color = mXAxis.axisLineColor
+                mAxisLinePaint.strokeWidth = mXAxis.axisLineWidth
+                mAxisLinePaint.pathEffect = mXAxis.axisLineDashPathEffect
+
+                // Top line
+                c.drawLine(
+                    mViewPortHandler.contentLeft(),
+                    mViewPortHandler.contentTop(), mViewPortHandler.contentRight(),
+                    mViewPortHandler.contentTop(), mAxisLinePaint
+                )
 
-            offsetTopAndBottom(0)
-            xAxis.apply {
-                isEnabled = true
-                position = XAxis.XAxisPosition.BOTH_SIDED
-                setDrawGridLines(false)
-                setDrawLabels(false)
-                setDrawValueAboveBar(false)
+                // Bottom line
+                c.drawLine(
+                    mViewPortHandler.contentLeft(),
+                    mViewPortHandler.contentBottom() - 7.dpToPxF(context),
+                    mViewPortHandler.contentRight(),
+                    mViewPortHandler.contentBottom() - 7.dpToPxF(context),
+                    mAxisLinePaint
+                )
             }
 
-            val periodMarker = PeriodMarkerView(context, isMarkerAbove)
-            periodMarker.chartView = this
-            marker = periodMarker
-
-            setOnChartValueSelectedListener(object : OnChartValueSelectedListener {
-                override fun onValueSelected(e: Entry?, h: Highlight?) {
-                    h?.let {
-                        val index = it.x.toInt()
-                        if (index >= 0 &&
-                            index < labels.size &&
-                            index < this@GraphHolder.data.size
-                        ) {
-                            val period = labels[index]
-                            val (blocked, leaked) = this@GraphHolder.data[index]
-                            periodMarker.setLabel(period, blocked, leaked)
-                        }
+            override fun renderGridLines(c: Canvas) {
+                if (!mXAxis.isDrawGridLinesEnabled || !mXAxis.isEnabled) return
+                val clipRestoreCount = c.save()
+                c.clipRect(gridClippingRect)
+                if (mRenderGridLinesBuffer.size != mAxis.mEntryCount * 2) {
+                    mRenderGridLinesBuffer = FloatArray(mXAxis.mEntryCount * 2)
+                }
+                val positions = mRenderGridLinesBuffer
+                run {
+                    var i = 0
+                    while (i < positions.size) {
+                        positions[i] = mXAxis.mEntries[i / 2]
+                        positions[i + 1] = mXAxis.mEntries[i / 2]
+                        i += 2
                     }
-                    isHighlighted = true
                 }
 
-                override fun onNothingSelected() {
-                    isHighlighted = false
+                mTrans.pointValuesToPixel(positions)
+                setupGridPaint()
+                val gridLinePath = mRenderGridLinesPath
+                gridLinePath.reset()
+                var i = 0
+                while (i < positions.size) {
+                    val bottomY = if (graduations?.getOrNull(i / 2) != null) 0 else 3
+                    val x = positions[i]
+                    gridLinePath.moveTo(x, mViewPortHandler.contentBottom() - 7.dpToPxF(context))
+                    gridLinePath.lineTo(x, mViewPortHandler.contentBottom() - bottomY.dpToPxF(context))
+
+                    c.drawPath(gridLinePath, mGridPaint)
+
+                    gridLinePath.reset()
+
+                    i += 2
+                }
+                c.restoreToCount(clipRestoreCount)
+            }
+        })
+
+        barChart.setDrawValueAboveBar(false)
+        barChart.xAxis.apply {
+            isEnabled = true
+            position = XAxis.XAxisPosition.BOTTOM
+
+            setDrawGridLines(true)
+            setDrawLabels(true)
+            setCenterAxisLabels(false)
+            setLabelCount(25, true)
+
+            valueFormatter = object : ValueFormatter() {
+                override fun getAxisLabel(value: Float, axis: AxisBase?): String {
+                    return graduations?.getOrNull(value.toInt() + 1) ?: ""
                 }
-            })
+            }
+        }
+    }
+
+    private fun prepareXAxisMarkersBelow() {
+        barChart.extraBottomOffset = 44f
+
+        barChart.offsetTopAndBottom(0)
+        barChart.setDrawValueAboveBar(false)
+
+        barChart.xAxis.apply {
+            isEnabled = true
+            position = XAxis.XAxisPosition.BOTH_SIDED
+            setDrawGridLines(false)
+            setDrawLabels(false)
         }
     }
 
diff --git a/app/src/main/java/foundation/e/privacycentralapp/domain/entities/TrackersPeriodicStatistics.kt b/app/src/main/java/foundation/e/privacycentralapp/domain/entities/TrackersPeriodicStatistics.kt
index b3a6ade..8ce55dd 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/domain/entities/TrackersPeriodicStatistics.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/domain/entities/TrackersPeriodicStatistics.kt
@@ -20,5 +20,6 @@ package foundation.e.privacycentralapp.domain.entities
 data class TrackersPeriodicStatistics(
     val callsBlockedNLeaked: List<Pair<Int, Int>>,
     val periods: List<String>,
-    val trackersCount: Int
+    val trackersCount: Int,
+    val graduations: List<String?>? = null
 )
diff --git a/app/src/main/java/foundation/e/privacycentralapp/domain/usecases/TrackersStatisticsUseCase.kt b/app/src/main/java/foundation/e/privacycentralapp/domain/usecases/TrackersStatisticsUseCase.kt
index 57ab1a4..5103eb2 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/domain/usecases/TrackersStatisticsUseCase.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/domain/usecases/TrackersStatisticsUseCase.kt
@@ -69,7 +69,8 @@ class TrackersStatisticsUseCase(
         return TrackersPeriodicStatistics(
             callsBlockedNLeaked = trackTrackersPrivacyModule.getPastDayTrackersCalls(),
             periods = buildDayLabels(),
-            trackersCount = trackTrackersPrivacyModule.getPastDayTrackersCount()
+            trackersCount = trackTrackersPrivacyModule.getPastDayTrackersCount(),
+            graduations = buildDayGraduations(),
         ) to trackTrackersPrivacyModule.getTrackersCount()
     }
 
@@ -83,15 +84,30 @@ class TrackersStatisticsUseCase(
 
     fun getDayTrackersCount() = trackTrackersPrivacyModule.getPastDayTrackersCount()
 
+    private fun buildDayGraduations(): List<String?> {
+        val formatter = DateTimeFormatter.ofPattern(
+            resources.getString(R.string.trackers_graph_hours_period_format)
+        )
+
+        val periods = mutableListOf<String?>()
+        var end = ZonedDateTime.now()
+        for (i in 1..24) {
+            val start = end.truncatedTo(ChronoUnit.HOURS)
+            periods.add(if (start.hour % 6 == 0) formatter.format(start) else null)
+            end = start.minus(1, ChronoUnit.MINUTES)
+        }
+        return periods.reversed()
+    }
+
     private fun buildDayLabels(): List<String> {
-        val formater = DateTimeFormatter.ofPattern(
+        val formatter = DateTimeFormatter.ofPattern(
             resources.getString(R.string.trackers_graph_hours_period_format)
         )
         val periods = mutableListOf<String>()
         var end = ZonedDateTime.now()
         for (i in 1..24) {
             val start = end.truncatedTo(ChronoUnit.HOURS)
-            periods.add("${formater.format(start)} - ${formater.format(end)}")
+            periods.add("${formatter.format(start)} - ${formatter.format(end)}")
             end = start.minus(1, ChronoUnit.MINUTES)
         }
         return periods.reversed()
diff --git a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardFragment.kt b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardFragment.kt
index 8a0a3d4..0dc24e8 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardFragment.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardFragment.kt
@@ -259,6 +259,7 @@ class DashboardFragment : NavToolbarFragment(R.layout.fragment_dashboard) {
             binding.graphEmpty.isVisible = false
             state.dayStatistics?.let { graphHolder?.data = it }
             state.dayLabels?.let { graphHolder?.labels = it }
+            state.dayGraduations?.let { graphHolder?.graduations = it }
 
             binding.graphLegend.text = Html.fromHtml(
                 getString(
diff --git a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardState.kt b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardState.kt
index 937fa22..0e3521d 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardState.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardState.kt
@@ -33,4 +33,5 @@ data class DashboardState(
     val allowedTrackersCount: Int? = null,
     val dayStatistics: List<Pair<Int, Int>>? = null,
     val dayLabels: List<String>? = null,
+    val dayGraduations: List<String?>? = null,
 )
diff --git a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardViewModel.kt b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardViewModel.kt
index 18b4212..ead01a5 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardViewModel.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/features/dashboard/DashboardViewModel.kt
@@ -114,6 +114,7 @@ class DashboardViewModel(
                     s.copy(
                         dayStatistics = dayStatistics.callsBlockedNLeaked,
                         dayLabels = dayStatistics.periods,
+                        dayGraduations = dayStatistics.graduations,
                         leakedTrackersCount = dayStatistics.trackersCount,
                         trackersCount = trackersCount,
                         allowedTrackersCount = nonBlockedTrackersCount