Add default constructor values

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksSheetViewModel.kt

@@ -46,7 +46,7 @@ class BookmarksSheetViewModel @Inject constructor(
 			if (b.isNullOrEmpty()) {
 				continue
 			}
-			result += ListHeader(chapter.name, 0, null)
+			result += ListHeader(chapter.name)
 			result.addAll(b)
 		}
 		return result

app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadsViewModel.kt

@@ -186,7 +186,7 @@ class DownloadsViewModel @Inject constructor(
 		for (item in this) {
 			val date = timeAgo(item.timestamp)
 			if (prevDate != date) {
-				destination += ListHeader(date, 0, null)
+				destination += ListHeader(date)
 			}
 			prevDate = date
 			destination += item

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreViewModel.kt

@@ -133,11 +133,11 @@ class ExploreViewModel @Inject constructor(
 		val result = ArrayList<ListModel>(sources.size + 4)
 		result += ExploreButtons(randomLoading)
 		if (recommendation != null) {
-			result += ListHeader(R.string.suggestions, 0, null)
+			result += ListHeader(R.string.suggestions)
 			result += RecommendationsItem(recommendation)
 		}
 		if (sources.isNotEmpty()) {
-			result += ListHeader(R.string.remote_sources, R.string.manage, null)
+			result += ListHeader(R.string.remote_sources, R.string.manage)
 			if (newSources.isNotEmpty()) {
 				result += TipModel(
 					key = TIP_NEW_SOURCES,

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt

@@ -207,13 +207,13 @@ class FilterCoordinator @Inject constructor(
 		val list = ArrayList<ListModel>(tags.size + sortOrders.size + 3)
 		if (query.isEmpty()) {
 			if (sortOrders.isNotEmpty()) {
-				list.add(ListHeader(R.string.sort_order, 0, null))
+				list.add(ListHeader(R.string.sort_order))
 				sortOrders.mapTo(list) {
 					FilterItem.Sort(it, isSelected = it == state.sortOrder)
 				}
 			}
 			if (allTags.isLoading || allTags.isError || tags.isNotEmpty()) {
-				list.add(ListHeader(R.string.genres, if (state.tags.isEmpty()) 0 else R.string.reset, null))
+				list.add(ListHeader(R.string.genres, if (state.tags.isEmpty()) 0 else R.string.reset))
 				tags.mapTo(list) {
 					FilterItem.Tag(it, isChecked = it in state.tags)
 				}

app/src/main/kotlin/org/koitharu/kotatsu/history/ui/HistoryListViewModel.kt

@@ -135,7 +135,7 @@ class HistoryListViewModel @Inject constructor(
 			if (grouped) {
 				val date = timeAgo(history.updatedAt)
 				if (prevDate != date) {
-					result += ListHeader(date, 0, null)
+					result += ListHeader(date)
 				}
 				prevDate = date
 			}

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/model/ListHeader.kt

@@ -5,30 +5,25 @@ import androidx.annotation.StringRes
 import org.koitharu.kotatsu.core.ui.model.DateTimeAgo
 
 data class ListHeader private constructor(
-	private val text: CharSequence?,
-	@StringRes private val textRes: Int,
-	private val dateTimeAgo: DateTimeAgo?,
-	@StringRes val buttonTextRes: Int,
-	val payload: Any?,
+	private val text: CharSequence? = null,
+	@StringRes private val textRes: Int = 0,
+	private val dateTimeAgo: DateTimeAgo? = null,
+	@StringRes val buttonTextRes: Int = 0,
+	val payload: Any? = null,
 ) : ListModel {
 
 	constructor(
 		text: CharSequence,
-		@StringRes buttonTextRes: Int,
-		payload: Any?,
+		@StringRes buttonTextRes: Int = 0,
+		payload: Any? = null,
 	) : this(text, 0, null, buttonTextRes, payload)
 
 	constructor(
 		@StringRes textRes: Int,
-		@StringRes buttonTextRes: Int,
-		payload: Any?,
-	) : this(null, textRes, null, buttonTextRes, payload)
+		@StringRes buttonTextRes: Int = 0
+	) : this(null, textRes, null, buttonTextRes)
 
-	constructor(
-		dateTimeAgo: DateTimeAgo,
-		@StringRes buttonTextRes: Int,
-		payload: Any?,
-	) : this(null, 0, dateTimeAgo, buttonTextRes, payload)
+	constructor(dateTimeAgo: DateTimeAgo) : this(null, dateTimeAgo = dateTimeAgo)
 
 	fun getText(context: Context): CharSequence? = when {
 		text != null -> text

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/thumbnails/PagesThumbnailsViewModel.kt

@@ -95,7 +95,7 @@ class PagesThumbnailsViewModel @Inject constructor(
 			for (page in snapshot) {
 				if (page.chapterId != previousChapterId) {
 					chaptersLoader.peekChapter(page.chapterId)?.let {
-						add(ListHeader(it.name, 0, null))
+						add(ListHeader(it.name))
 					}
 					previousChapterId = page.chapterId
 				}

app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/feed/FeedViewModel.kt

@@ -85,7 +85,7 @@ class FeedViewModel @Inject constructor(
 		for (item in this) {
 			val date = timeAgo(item.createdAt)
 			if (prevDate != date) {
-				destination += ListHeader(date, 0, null)
+				destination += ListHeader(date)
 			}
 			prevDate = date
 			destination += item.toFeedItem()