add ability to swipe between custom ranges

Author: Razeeman

core/src/main/java/com/example/util/simpletimetracker/core/mapper/RangeViewDataMapper.kt

@@ -64,7 +64,7 @@ class RangeViewDataMapper @Inject constructor(
             is RangeLength.Custom -> if (useShortCustomRange) {
                 mapToSelectRangeName()
             } else {
-                mapToCustomRangeTitle(rangeLength.range)
+                mapToCustomRangeTitle(rangeLength.range, position, startOfDayShift, firstDayOfWeek)
             }
         }
     }
@@ -133,6 +133,21 @@ class RangeViewDataMapper @Inject constructor(
             timeMapper.formatDate(range.timeEnded - 1)
     }
 
+    private fun mapToCustomRangeTitle(
+        range: Range,
+        position: Int,
+        startOfDayShift: Long,
+        firstDayOfWeek: DayOfWeek,
+    ): String {
+        val shiftedRange = timeMapper.getRangeStartAndEnd(
+            rangeLength = RangeLength.Custom(range),
+            shift = position,
+            firstDayOfWeek = firstDayOfWeek,
+            startOfDayShift = startOfDayShift,
+        )
+        return mapToCustomRangeTitle(shiftedRange)
+    }
+
     private fun mapToSelectLastDays(days: Int): SelectLastDaysViewData {
         val text = mapToLastDaysTitle(days)
         return SelectLastDaysViewData(text)

core/src/main/java/com/example/util/simpletimetracker/core/mapper/TimeMapper.kt

@@ -431,8 +431,16 @@ class TimeMapper @Inject constructor(
             }
 
             is RangeLength.Custom -> {
-                rangeStart = rangeLength.range.timeStarted
-                rangeEnd = rangeLength.range.timeEnded
+                val daysBetween = toTimestampShift(
+                    fromTime = rangeLength.range.timeStarted,
+                    toTime = rangeLength.range.timeEnded,
+                    range = RangeLength.Day,
+                    firstDayOfWeek = firstDayOfWeek,
+                ).toInt()
+                calendar.timeInMillis = rangeLength.range.timeStarted
+                calendar.add(Calendar.DATE, shift * daysBetween)
+                rangeStart = calendar.timeInMillis
+                rangeEnd = calendar.apply { add(Calendar.DATE, daysBetween) }.timeInMillis
             }
 
             is RangeLength.Last -> {

domain/src/main/java/com/example/util/simpletimetracker/domain/statistics/extension/StatisticsExtensions.kt

@@ -4,9 +4,7 @@ import com.example.util.simpletimetracker.domain.statistics.model.RangeLength
 
 fun RangeLength.canBeSwiped(): Boolean {
     return when (this) {
-        is RangeLength.All,
-        is RangeLength.Custom,
-        -> false
+        is RangeLength.All -> false
         else -> true
     }
 }

features/feature_statistics_detail/src/main/java/com/example/util/simpletimetracker/feature_statistics_detail/interactor/StatisticsDetailChartInteractor.kt

@@ -329,11 +329,11 @@ class StatisticsDetailChartInteractor @Inject constructor(
             is RangeLength.Month,
             is RangeLength.Year,
             is RangeLength.Last,
+            is RangeLength.Custom,
             -> timeMapper.getRangeStartAndEnd(
                 rangeLength, rangePosition, firstDayOfWeek, 0,
             ).timeEnded - 1
             is RangeLength.All -> System.currentTimeMillis()
-            is RangeLength.Custom -> rangeLength.range.timeEnded - 1
         }
 
         val numberOfGroups: Int = when (rangeLength) {