Optimized Reader loading speed and performance.

app/src/main/java/ua/acclorite/book_story/domain/use_case/GetText.kt

@@ -1,15 +1,11 @@
 package ua.acclorite.book_story.domain.use_case
 
-import ua.acclorite.book_story.domain.model.ReaderLine
 import ua.acclorite.book_story.domain.repository.BookRepository
-import ua.acclorite.book_story.domain.util.ID
 import javax.inject.Inject
 
 class GetText @Inject constructor(private val repository: BookRepository) {
 
-    suspend fun execute(textPath: String): Map<ID, ReaderLine> {
+    suspend fun execute(textPath: String): List<String> {
-        return repository.getBookText(textPath = textPath).withIndex().associate {
+        return repository.getBookText(textPath = textPath)
-            it.index to ReaderLine(line = it.value)
-        }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/data/BookInfoViewModel.kt

@@ -534,7 +534,7 @@ class BookInfoViewModel @Inject constructor(
                         val updatedText = updatedBook.text
                         val text = getText.execute(book.textPath)
 
-                        if (updatedText != text.map { it.value.line }) {
+                        if (updatedText != text) {
                             textUpdated = true
                         }
 

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

@@ -52,7 +52,7 @@ import ua.acclorite.book_story.domain.util.Constants
 import ua.acclorite.book_story.domain.util.OnNavigate
 import ua.acclorite.book_story.presentation.components.CustomAnimatedVisibility
 import ua.acclorite.book_story.presentation.components.CustomSelectionContainer
-import ua.acclorite.book_story.presentation.components.customItems
+import ua.acclorite.book_story.presentation.components.customItemsIndexed
 import ua.acclorite.book_story.presentation.components.is_messages.IsError
 import ua.acclorite.book_story.presentation.data.LocalNavigator
 import ua.acclorite.book_story.presentation.data.MainEvent
@@ -188,9 +188,6 @@ private fun ReaderScreen(
         }
     }
 
-    val text = remember(state.value.text) {
-        state.value.text.toList().sortedBy { it.first }
-    }
     val fontFamily = remember(mainState.value.fontFamily) {
         Constants.FONTS.find {
             it.id == mainState.value.fontFamily
@@ -359,11 +356,11 @@ private fun ReaderScreen(
                     Spacer(modifier = Modifier.height(18.dp))
                 }
 
-                customItems(
+                customItemsIndexed(
-                    text, key = { key -> key.first }
+                    state.value.text, key = { _, index -> index }
-                ) { line ->
+                ) { _, line ->
                     ReaderTextParagraph(
-                        line = line.second,
+                        line = line,
                         context = context,
                         fontFamily = fontFamily,
                         fontColor = fontColor.value,

app/src/main/java/ua/acclorite/book_story/presentation/screens/reader/components/ReaderTextParagraph.kt

@@ -22,7 +22,6 @@ import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.TextUnit
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.domain.model.FontWithName
-import ua.acclorite.book_story.domain.model.ReaderLine
 import ua.acclorite.book_story.presentation.screens.reader.data.ReaderEvent
 
 /**
@@ -44,7 +43,7 @@ import ua.acclorite.book_story.presentation.screens.reader.data.ReaderEvent
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun LazyItemScope.ReaderTextParagraph(
-    line: ReaderLine,
+    line: String,
     context: Context,
     fontFamily: FontWithName,
     fontColor: Color,
@@ -72,7 +71,7 @@ fun LazyItemScope.ReaderTextParagraph(
                     append("  ")
                 }
 
-                append(line.line)
+                append(line)
             },
             modifier = Modifier.then(
                 if (
@@ -85,7 +84,7 @@ fun LazyItemScope.ReaderTextParagraph(
                         onDoubleClick = {
                             onEvent(
                                 ReaderEvent.OnOpenTranslator(
-                                    textToTranslate = line.line,
+                                    textToTranslate = line,
                                     context = context as ComponentActivity,
                                     noAppsFound = {
                                         Toast.makeText(

app/src/main/java/ua/acclorite/book_story/presentation/screens/reader/data/ReaderState.kt

@@ -3,15 +3,13 @@ package ua.acclorite.book_story.presentation.screens.reader.data
 import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.runtime.Immutable
 import ua.acclorite.book_story.domain.model.Book
-import ua.acclorite.book_story.domain.model.ReaderLine
 import ua.acclorite.book_story.domain.util.Constants
-import ua.acclorite.book_story.domain.util.ID
 import ua.acclorite.book_story.domain.util.UIText
 
 @Immutable
 data class ReaderState(
     val book: Book = Constants.EMPTY_BOOK,
-    val text: Map<ID, ReaderLine> = emptyMap(),
+    val text: List<String> = emptyList(),
     val words: Int = 0,
     val letters: Int = 0,
     val listState: LazyListState = LazyListState(),

app/src/main/java/ua/acclorite/book_story/presentation/screens/reader/data/ReaderViewModel.kt

@@ -73,7 +73,6 @@ class ReaderViewModel @Inject constructor(
                         }
 
                         val textAsLine = text
-                            .map { it.value.line }
                             .joinToString(
                                 separator = "\n"
                             )