🚀 Progress Count option

* Option to change Progress Count method (Percentage/Quantity)
* Improved progress calculation

app/src/main/java/ua/acclorite/book_story/domain/reader/ReaderProgressCount.kt

@@ -0,0 +1,13 @@
+package ua.acclorite.book_story.domain.reader
+
+import androidx.compose.runtime.Immutable
+
+@Immutable
+enum class ReaderProgressCount {
+    PERCENTAGE,
+    QUANTITY
+}
+
+fun String.toProgressCount(): ReaderProgressCount {
+    return ReaderProgressCount.valueOf(this)
+}

app/src/main/java/ua/acclorite/book_story/presentation/core/constants/DataStoreConstants.kt

@@ -58,6 +58,7 @@ object DataStoreConstants {
     val PROGRESS_BAR_PADDING = intPreferencesKey("progress_bar_padding")
     val PROGRESS_BAR_ALIGNMENT = stringPreferencesKey("progress_bar_alignment")
     val PROGRESS_BAR_FONT_SIZE = intPreferencesKey("progress_bar_font_size")
+    val PROGRESS_COUNT = stringPreferencesKey("progress_count")
 
     // Browse settings
     val BROWSE_LAYOUT = stringPreferencesKey("browse_layout")

app/src/main/java/ua/acclorite/book_story/presentation/settings/reader/progress/ProgressSubcategory.kt

@@ -13,6 +13,7 @@ import ua.acclorite.book_story.presentation.settings.reader.progress.components.
 import ua.acclorite.book_story.presentation.settings.reader.progress.components.ProgressBarFontSizeOption
 import ua.acclorite.book_story.presentation.settings.reader.progress.components.ProgressBarOption
 import ua.acclorite.book_story.presentation.settings.reader.progress.components.ProgressBarPaddingOption
+import ua.acclorite.book_story.presentation.settings.reader.progress.components.ProgressCountOption
 
 fun LazyListScope.ProgressSubcategory(
     titleColor: @Composable () -> Color = { MaterialTheme.colorScheme.primary },
@@ -26,6 +27,10 @@ fun LazyListScope.ProgressSubcategory(
         showTitle = showTitle,
         showDivider = showDivider,
     ) {
+        item {
+            ProgressCountOption()
+        }
+
         item {
             ProgressBarOption()
         }

app/src/main/java/ua/acclorite/book_story/presentation/settings/reader/progress/components/ProgressCountOption.kt

@@ -0,0 +1,41 @@
+package ua.acclorite.book_story.presentation.settings.reader.progress.components
+
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.domain.reader.ReaderProgressCount
+import ua.acclorite.book_story.domain.ui.ButtonItem
+import ua.acclorite.book_story.presentation.core.components.settings.SegmentedButtonWithTitle
+import ua.acclorite.book_story.ui.main.MainEvent
+import ua.acclorite.book_story.ui.main.MainModel
+
+@Composable
+fun ProgressCountOption() {
+    val mainModel = hiltViewModel<MainModel>()
+    val state = mainModel.state.collectAsStateWithLifecycle()
+
+    SegmentedButtonWithTitle(
+        title = stringResource(id = R.string.progress_count_option),
+        buttons = ReaderProgressCount.entries.map {
+            ButtonItem(
+                id = it.toString(),
+                title = when (it) {
+                    ReaderProgressCount.PERCENTAGE -> stringResource(id = R.string.progress_count_percentage)
+                    ReaderProgressCount.QUANTITY -> stringResource(id = R.string.progress_count_quantity)
+                },
+                textStyle = MaterialTheme.typography.labelLarge,
+                selected = it == state.value.progressCount
+            )
+        },
+        onClick = {
+            mainModel.onEvent(
+                MainEvent.OnChangeProgressCount(
+                    it.id
+                )
+            )
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/ui/main/MainEvent.kt

@@ -59,4 +59,5 @@ sealed class MainEvent {
     data class OnChangeProgressBarFontSize(val value: Int) : MainEvent()
     data class OnChangeBrowsePinnedPaths(val value: String) : MainEvent()
     data class OnChangeFontThickness(val value: String) : MainEvent()
+    data class OnChangeProgressCount(val value: String) : MainEvent()
 }

app/src/main/java/ua/acclorite/book_story/ui/main/MainModel.kt

@@ -21,6 +21,7 @@ import ua.acclorite.book_story.domain.browse.toBrowseSortOrder
 import ua.acclorite.book_story.domain.reader.toColorEffects
 import ua.acclorite.book_story.domain.reader.toFontThickness
 import ua.acclorite.book_story.domain.reader.toHorizontalGesture
+import ua.acclorite.book_story.domain.reader.toProgressCount
 import ua.acclorite.book_story.domain.reader.toReaderScreenOrientation
 import ua.acclorite.book_story.domain.reader.toTextAlignment
 import ua.acclorite.book_story.domain.use_case.data_store.ChangeLanguage
@@ -494,6 +495,14 @@ class MainModel @Inject constructor(
                     it.copy(fontThickness = this.toFontThickness())
                 }
             )
+
+            is MainEvent.OnChangeProgressCount -> handleDatastoreUpdate(
+                key = DataStoreConstants.PROGRESS_COUNT,
+                value = event.value,
+                updateState = {
+                    it.copy(progressCount = this.toProgressCount())
+                }
+            )
         }
     }
 

app/src/main/java/ua/acclorite/book_story/ui/main/MainState.kt

@@ -14,11 +14,13 @@ import ua.acclorite.book_story.domain.browse.toBrowseSortOrder
 import ua.acclorite.book_story.domain.reader.ReaderColorEffects
 import ua.acclorite.book_story.domain.reader.ReaderFontThickness
 import ua.acclorite.book_story.domain.reader.ReaderHorizontalGesture
+import ua.acclorite.book_story.domain.reader.ReaderProgressCount
 import ua.acclorite.book_story.domain.reader.ReaderScreenOrientation
 import ua.acclorite.book_story.domain.reader.ReaderTextAlignment
 import ua.acclorite.book_story.domain.reader.toColorEffects
 import ua.acclorite.book_story.domain.reader.toFontThickness
 import ua.acclorite.book_story.domain.reader.toHorizontalGesture
+import ua.acclorite.book_story.domain.reader.toProgressCount
 import ua.acclorite.book_story.domain.reader.toReaderScreenOrientation
 import ua.acclorite.book_story.domain.reader.toTextAlignment
 import ua.acclorite.book_story.domain.util.HorizontalAlignment
@@ -107,6 +109,7 @@ data class MainState(
     val progressBarPadding: Int = provideDefaultValue { 4 },
     val progressBarAlignment: HorizontalAlignment = provideDefaultValue { HorizontalAlignment.CENTER },
     val progressBarFontSize: Int = provideDefaultValue { 8 },
+    val progressCount: ReaderProgressCount = provideDefaultValue { ReaderProgressCount.PERCENTAGE },
 
     // Browse Settings
     val browseLayout: BrowseLayout = provideDefaultValue { BrowseLayout.LIST },
@@ -357,6 +360,10 @@ data class MainState(
                     fontThickness = provideValue(
                         FONT_THICKNESS, convert = { toFontThickness() }
                     ) { fontThickness },
+
+                    progressCount = provideValue(
+                        PROGRESS_COUNT, convert = { toProgressCount() }
+                    ) { progressCount },
                 )
             }
         }

app/src/main/java/ua/acclorite/book_story/ui/reader/ReaderModel.kt

@@ -179,7 +179,6 @@ class ReaderModel @Inject constructor(
                     launch {
                         _state.value.apply {
                             val chapterIndex = text.indexOf(event.chapter).takeIf { it != -1 }
-
                             if (chapterIndex == null) {
                                 return@launch
                             }
@@ -203,8 +202,9 @@ class ReaderModel @Inject constructor(
                         delay(300)
                         yield()
 
-                        val scrollTo = (_state.value.text.size * event.progress).roundToInt()
+                        val scrollTo = (_state.value.text.lastIndex * event.progress).roundToInt()
                         _state.value.listState.requestScrollToItem(scrollTo)
+                        updateChapter(scrollTo)
                     }
                 }
 
@@ -489,7 +489,7 @@ class ReaderModel @Inject constructor(
     fun updateProgress(listState: LazyListState) {
         viewModelScope.launch(Dispatchers.Main) {
             snapshotFlow {
-                listState.run { firstVisibleItemIndex to firstVisibleItemScrollOffset }
+                listState.firstVisibleItemIndex to listState.firstVisibleItemScrollOffset
             }.distinctUntilChanged().debounce(300).collectLatest { (index, offset) ->
                 val progress = calculateProgress(index)
                 if (progress == _state.value.book.progress) return@collectLatest
@@ -519,6 +519,21 @@ class ReaderModel @Inject constructor(
         }
     }
 
+    fun findChapterIndexAndLength(index: Int): Pair<Int, Int> {
+        return findCurrentChapter(index)?.let { chapter ->
+            _state.value.text.run {
+                val startIndex = indexOf(chapter).coerceIn(0, lastIndex)
+                val endIndex = (indexOfFirst {
+                    it is Chapter && indexOf(it) > startIndex
+                }.takeIf { it != -1 }) ?: (lastIndex + 1)
+
+                val currentIndexInChapter = (index - startIndex).coerceAtLeast(1)
+                val chapterLength = endIndex - (startIndex + 1)
+                currentIndexInChapter to chapterLength
+            }
+        } ?: (-1 to -1)
+    }
+
     private fun updateChapter(index: Int) {
         viewModelScope.launch {
             val (currentChapter, currentChapterProgress) = calculateCurrentChapter(index)
@@ -540,13 +555,13 @@ class ReaderModel @Inject constructor(
         val currentChapter = findCurrentChapter(index)
         val currentChapterProgress = currentChapter?.let { chapter ->
             _state.value.text.run {
-                val startIndex = (indexOf(chapter) + 1).coerceAtMost(count())
+                val startIndex = indexOf(chapter).coerceIn(0, lastIndex)
                 val endIndex = (indexOfFirst {
                     it is Chapter && indexOf(it) > startIndex
-                }.takeIf { it != -1 }?.minus(1)) ?: lastIndex
+                }.takeIf { it != -1 }) ?: (lastIndex + 1)
 
-                val currentIndexInChapter = index - startIndex
+                val currentIndexInChapter = (index - startIndex).coerceAtLeast(1)
-                val chapterLength = endIndex - startIndex
+                val chapterLength = endIndex - (startIndex + 1)
                 (currentIndexInChapter / chapterLength.toFloat())
             }
         }.coerceAndPreventNaN()

app/src/main/java/ua/acclorite/book_story/ui/reader/ReaderScreen.kt

@@ -40,6 +40,7 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import kotlinx.parcelize.Parcelize
 import ua.acclorite.book_story.domain.navigator.Screen
 import ua.acclorite.book_story.domain.reader.ReaderColorEffects
+import ua.acclorite.book_story.domain.reader.ReaderProgressCount
 import ua.acclorite.book_story.domain.reader.ReaderTextAlignment
 import ua.acclorite.book_story.presentation.core.constants.Constants
 import ua.acclorite.book_story.presentation.core.constants.provideFonts
@@ -51,6 +52,7 @@ import ua.acclorite.book_story.presentation.reader.ReaderContent
 import ua.acclorite.book_story.ui.book_info.BookInfoScreen
 import ua.acclorite.book_story.ui.main.MainModel
 import ua.acclorite.book_story.ui.settings.SettingsModel
+import kotlin.math.roundToInt
 
 @Parcelize
 data class ReaderScreen(val bookId: Int) : Screen, Parcelable {
@@ -289,24 +291,46 @@ data class ReaderScreen(val bookId: Int) : Screen, Parcelable {
             (mainState.value.bottomBarPadding * 4f).dp
         }
 
-        val bookProgress = remember(state.value.book.progress) {
+        val bookProgress = remember(
-            derivedStateOf {
+            state.value.book.progress,
-                "${state.value.book.progress.calculateProgress(2)}%"
+            state.value.text,
+            mainState.value.progressCount
+        ) {
+            when (mainState.value.progressCount) {
+                ReaderProgressCount.PERCENTAGE -> {
+                    "${state.value.book.progress.calculateProgress(2)}%"
+                }
+
+                ReaderProgressCount.QUANTITY -> {
+                    val index =
+                        (state.value.book.progress * state.value.text.lastIndex + 1).roundToInt()
+                    "$index / ${state.value.text.size}"
+                }
             }
         }
         val chapterProgress = remember(
+            state.value.text,
+            state.value.book.progress,
             state.value.currentChapter,
-            state.value.currentChapterProgress
+            state.value.currentChapterProgress,
+            mainState.value.progressCount
         ) {
-            derivedStateOf {
+            if (state.value.currentChapter == null) return@remember ""
-                if (state.value.currentChapter == null) return@derivedStateOf ""
+            when (mainState.value.progressCount) {
-                " (${state.value.currentChapterProgress.calculateProgress(2)}%)"
+                ReaderProgressCount.PERCENTAGE -> {
+                    " (${state.value.currentChapterProgress.calculateProgress(2)}%)"
+                }
+
+                ReaderProgressCount.QUANTITY -> {
+                    val (index, length) = screenModel.findChapterIndexAndLength(
+                        (state.value.book.progress * state.value.text.lastIndex).roundToInt()
+                    ).apply { if (first == -1 && second == -1) return@remember "" }
+                    " (${index} / ${length})"
+                }
             }
         }
-        val progress = remember(bookProgress.value, chapterProgress.value) {
+        val progress = remember(bookProgress, chapterProgress) {
-            derivedStateOf {
+            "${bookProgress}${chapterProgress}"
-                "${bookProgress.value}${chapterProgress.value}"
-            }
         }
 
         LaunchedEffect(Unit) {
@@ -397,7 +421,7 @@ data class ReaderScreen(val bookId: Int) : Screen, Parcelable {
             horizontalGestureSensitivity = horizontalGestureSensitivity,
             highlightedReading = mainState.value.highlightedReading,
             highlightedReadingThickness = highlightedReadingThickness,
-            progress = progress.value,
+            progress = progress,
             progressBar = mainState.value.progressBar,
             progressBarPadding = progressBarPadding,
             progressBarAlignment = mainState.value.progressBarAlignment,

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

@@ -208,6 +208,7 @@
     <string name="progress_bar_padding_option">Поля</string>
     <string name="progress_bar_alignment_option">Розташування</string>
     <string name="progress_bar_font_size_option">Розмір шрифта</string>
+    <string name="progress_count_option">Підрахунок прогресу</string>
 
     <!-- Browse -->
     <string name="browse_layout_option">Режим відображення</string>
@@ -286,6 +287,10 @@
     <string name="font_thickness_normal">Звичайна</string>
     <string name="font_thickness_medium">Середня</string>
 
+    <!-- Progress Count properties -->
+    <string name="progress_count_percentage">Відсотки</string>
+    <string name="progress_count_quantity">Кількість</string>
+
     <!-- Themes -->
     <string name="dynamic_theme">Меркурій</string>
     <string name="blue_theme">Нептун</string>

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

@@ -265,6 +265,7 @@
     <string name="progress_bar_padding_option">Margins</string>
     <string name="progress_bar_alignment_option">Alignment</string>
     <string name="progress_bar_font_size_option">Font size</string>
+    <string name="progress_count_option">Progress count</string>
 
     <!-- Browse -->
     <string name="browse_layout_option">Display mode</string>
@@ -343,6 +344,10 @@
     <string name="font_thickness_normal">Normal</string>
     <string name="font_thickness_medium">Medium</string>
 
+    <!-- Progress Count properties -->
+    <string name="progress_count_percentage">Percentage</string>
+    <string name="progress_count_quantity">Quantity</string>
+
     <!-- Themes -->
     <string name="dynamic_theme">Mercury</string>
     <string name="blue_theme">Neptune</string>