#2154 more merging of viewmodels bookmark and history

core/src/main/java/org/kiwix/kiwixmobile/core/page/bookmark/BookmarksActivity.kt

@@ -1,11 +1,12 @@
 package org.kiwix.kiwixmobile.core.page.bookmark
 
 import org.kiwix.kiwixmobile.core.R
+import org.kiwix.kiwixmobile.core.di.components.CoreComponent
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.viewModel
 import org.kiwix.kiwixmobile.core.page.PageActivity
 import org.kiwix.kiwixmobile.core.page.adapter.PageAdapter
-import org.kiwix.kiwixmobile.core.page.bookmark.viewmodel.BookmarkViewModel
 import org.kiwix.kiwixmobile.core.page.adapter.PageDelegate.PageItemDelegate
+import org.kiwix.kiwixmobile.core.page.bookmark.viewmodel.BookmarkViewModel
 
 class BookmarksActivity : PageActivity() {
   override val pageViewModel by lazy { viewModel<BookmarkViewModel>(viewModelFactory) }
@@ -14,6 +15,10 @@ class BookmarksActivity : PageActivity() {
     PageAdapter(PageItemDelegate(this))
   }
 
+  override fun injection(coreComponent: CoreComponent) {
+    activityComponent.inject(this)
+  }
+
   override val title: String by lazy { getString(R.string.bookmarks) }
   override val noItemsString: String by lazy { getString(R.string.no_bookmarks) }
   override val switchString: String by lazy { getString(R.string.bookmarks_from_current_book) }

core/src/main/java/org/kiwix/kiwixmobile/core/page/bookmark/viewmodel/BookmarkViewModel.kt

@@ -31,13 +31,13 @@ import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 import javax.inject.Inject
 
 class BookmarkViewModel @Inject constructor(
-  override val pageDao: NewBookmarksDao,
+  bookmarksDao: NewBookmarksDao,
   override val zimReaderContainer: ZimReaderContainer,
   override val sharedPreferenceUtil: SharedPreferenceUtil
-) : PageViewModel<BookmarkState>() {
+) : PageViewModel<BookmarkState>(bookmarksDao) {
 
   override fun initialState(): BookmarkState =
-    BookmarkState(emptyList(), sharedPreferenceUtil.showBookmarksAllBooks, zimReaderContainer.id)
+    BookmarkState(emptyList(), true, null)
 
   init {
     compositeDisposable.addAll(
@@ -61,11 +61,9 @@ class BookmarkViewModel @Inject constructor(
     return (state as BookmarkState).copy(showAll = action.isChecked)
   }
 
-  override fun offerShowDeleteDialog(state: PageState): PageState {
-    effects.offer(ShowDeleteBookmarksDialog(effects, state as BookmarkState, pageDao))
-    return state
-  }
-
   override fun deselectAllPages(state: PageState): PageState =
     (state as BookmarkState).copy(pageItems = state.pageItems.map { it.copy(isSelected = false) })
+
+  override fun createDeletePageDialogEffect(state: PageState) =
+    ShowDeleteBookmarksDialog(effects, state as BookmarkState, pageDao)
 }

core/src/main/java/org/kiwix/kiwixmobile/core/page/bookmark/viewmodel/effects/ShowDeleteBookmarksDialog.kt

@@ -21,7 +21,7 @@ package org.kiwix.kiwixmobile.core.page.bookmark.viewmodel.effects
 import androidx.appcompat.app.AppCompatActivity
 import io.reactivex.processors.PublishProcessor
 import org.kiwix.kiwixmobile.core.base.SideEffect
-import org.kiwix.kiwixmobile.core.dao.NewBookmarksDao
+import org.kiwix.kiwixmobile.core.dao.PageDao
 import org.kiwix.kiwixmobile.core.page.bookmark.BookmarksActivity
 import org.kiwix.kiwixmobile.core.page.bookmark.viewmodel.BookmarkState
 import org.kiwix.kiwixmobile.core.page.viewmodel.effects.DeletePageItems
@@ -33,7 +33,7 @@ import javax.inject.Inject
 data class ShowDeleteBookmarksDialog(
   private val effects: PublishProcessor<SideEffect<*>>,
   private val state: BookmarkState,
-  private val bookmarksDao: NewBookmarksDao
+  private val bookmarksDao: PageDao
 ) : SideEffect<Unit> {
   @Inject lateinit var dialogShower: DialogShower
   override fun invokeWith(activity: AppCompatActivity) {

core/src/main/java/org/kiwix/kiwixmobile/core/page/history/HistoryActivity.kt

@@ -1,6 +1,7 @@
 package org.kiwix.kiwixmobile.core.page.history
 
 import org.kiwix.kiwixmobile.core.R
+import org.kiwix.kiwixmobile.core.di.components.CoreComponent
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.viewModel
 import org.kiwix.kiwixmobile.core.page.PageActivity
 import org.kiwix.kiwixmobile.core.page.adapter.PageAdapter
@@ -17,6 +18,10 @@ class HistoryActivity : PageActivity() {
     PageAdapter(PageItemDelegate(this), HistoryDateDelegate())
   }
 
+  override fun injection(coreComponent: CoreComponent) {
+    activityComponent.inject(this)
+  }
+
   override val noItemsString: String by lazy { getString(R.string.no_history) }
   override val switchString: String by lazy { getString(R.string.history_from_current_book) }
   override val title: String by lazy { getString(R.string.history) }

core/src/main/java/org/kiwix/kiwixmobile/core/page/history/viewmodel/HistoryViewModel.kt

@@ -18,7 +18,6 @@
 
 package org.kiwix.kiwixmobile.core.page.history.viewmodel
 
-import io.reactivex.schedulers.Schedulers
 import org.kiwix.kiwixmobile.core.dao.HistoryDao
 import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem.HistoryItem
 import org.kiwix.kiwixmobile.core.page.history.viewmodel.effects.ShowDeleteHistoryDialog
@@ -31,21 +30,13 @@ import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 import javax.inject.Inject
 
 class HistoryViewModel @Inject constructor(
-  override val pageDao: HistoryDao,
   override val zimReaderContainer: ZimReaderContainer,
-  override val sharedPreferenceUtil: SharedPreferenceUtil
+  override val sharedPreferenceUtil: SharedPreferenceUtil,
-) : PageViewModel<HistoryState>() {
+  historyDao: HistoryDao
+) : PageViewModel<HistoryState>(historyDao) {
 
   override fun initialState(): HistoryState =
-    HistoryState(emptyList(), sharedPreferenceUtil.showHistoryAllBooks, zimReaderContainer.id)
+    HistoryState(emptyList(), true, null)
-
-  init {
-    compositeDisposable.addAll(
-      viewStateReducer(),
-      pageDao.pages().subscribeOn(Schedulers.io())
-        .subscribe({ actions.offer(Action.UpdatePages(it)) }, Throwable::printStackTrace)
-    )
-  }
 
   override fun updatePagesBasedOnFilter(state: PageState, action: Action.Filter): PageState =
     (state as HistoryState).copy(searchTerm = action.searchTerm)
@@ -61,10 +52,8 @@ class HistoryViewModel @Inject constructor(
     return (state as HistoryState).copy(showAll = action.isChecked)
   }
 
-  override fun offerShowDeleteDialog(state: PageState): PageState {
+  override fun createDeletePageDialogEffect(state: PageState) =
-    effects.offer(ShowDeleteHistoryDialog(effects, state as HistoryState, pageDao))
+    ShowDeleteHistoryDialog(effects, state as HistoryState, pageDao)
-    return state
-  }
 
   override fun deselectAllPages(state: PageState): PageState =
     (state as HistoryState).copy(pageItems = state.pageItems.map { it.copy(isSelected = false) })

core/src/main/java/org/kiwix/kiwixmobile/core/page/history/viewmodel/effects/ShowDeleteHistoryDialog.kt

@@ -21,7 +21,7 @@ package org.kiwix.kiwixmobile.core.page.history.viewmodel.effects
 import androidx.appcompat.app.AppCompatActivity
 import io.reactivex.processors.PublishProcessor
 import org.kiwix.kiwixmobile.core.base.SideEffect
-import org.kiwix.kiwixmobile.core.dao.HistoryDao
+import org.kiwix.kiwixmobile.core.dao.PageDao
 import org.kiwix.kiwixmobile.core.page.history.HistoryActivity
 import org.kiwix.kiwixmobile.core.page.history.viewmodel.HistoryState
 import org.kiwix.kiwixmobile.core.page.viewmodel.effects.DeletePageItems
@@ -33,7 +33,7 @@ import javax.inject.Inject
 data class ShowDeleteHistoryDialog(
   private val effects: PublishProcessor<SideEffect<*>>,
   private val state: HistoryState,
-  private val historyDao: HistoryDao
+  private val historyDao: PageDao
 ) : SideEffect<Unit> {
   @Inject lateinit var dialogShower: DialogShower
   override fun invokeWith(activity: AppCompatActivity) {

core/src/main/java/org/kiwix/kiwixmobile/core/page/viewmodel/PageViewModel.kt

@@ -23,6 +23,7 @@ import androidx.lifecycle.ViewModel
 import io.reactivex.disposables.CompositeDisposable
 import io.reactivex.disposables.Disposable
 import io.reactivex.processors.PublishProcessor
+import io.reactivex.schedulers.Schedulers
 import org.kiwix.kiwixmobile.core.base.SideEffect
 import org.kiwix.kiwixmobile.core.dao.PageDao
 import org.kiwix.kiwixmobile.core.page.viewmodel.Action.Exit
@@ -39,17 +40,24 @@ import org.kiwix.kiwixmobile.core.reader.ZimReaderContainer
 import org.kiwix.kiwixmobile.core.search.viewmodel.effects.Finish
 import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 
-abstract class PageViewModel<out T : PageState> : ViewModel() {
+abstract class PageViewModel<out T : PageState>(val pageDao: PageDao) : ViewModel() {
   abstract val zimReaderContainer: ZimReaderContainer
   abstract val sharedPreferenceUtil: SharedPreferenceUtil
-  abstract val pageDao: PageDao
   val state = MutableLiveData<PageState>().apply {
     value = initialState()
   }
 
+  val compositeDisposable = CompositeDisposable()
   val effects = PublishProcessor.create<SideEffect<*>>()
   val actions = PublishProcessor.create<Action>()
-  val compositeDisposable = CompositeDisposable()
+
+  init {
+    compositeDisposable.addAll(
+      viewStateReducer(),
+      pageDao.pages().subscribeOn(Schedulers.io())
+        .subscribe({ actions.offer(Action.UpdatePages(it)) }, Throwable::printStackTrace)
+    )
+  }
 
   fun viewStateReducer(): Disposable =
     actions.map { reduce(it, state.value!!) }
@@ -77,6 +85,11 @@ abstract class PageViewModel<out T : PageState> : ViewModel() {
     state: PageState
   ): PageState
 
+  private fun offerShowDeleteDialog(state: PageState): PageState {
+    effects.offer(createDeletePageDialogEffect(state))
+    return state
+  }
+
   private fun handleItemLongClick(state: PageState, action: OnItemLongClick): PageState =
     state.toggleSelectionOfItem(action.page)
 
@@ -88,8 +101,6 @@ abstract class PageViewModel<out T : PageState> : ViewModel() {
     return state
   }
 
-  abstract fun offerShowDeleteDialog(state: PageState): PageState
-
   abstract fun deselectAllPages(state: PageState): PageState
 
   private fun finishActivity(state: PageState): PageState {
@@ -101,4 +112,6 @@ abstract class PageViewModel<out T : PageState> : ViewModel() {
     compositeDisposable.clear()
     super.onCleared()
   }
+
+  abstract fun createDeletePageDialogEffect(state: PageState): SideEffect<*>
 }

core/src/test/java/org/kiwix/kiwixmobile/core/page/history/viewmodel/HistoryViewModelTest.kt

@@ -84,14 +84,26 @@ internal class HistoryViewModelTest {
   @Test
   internal fun `UserClickedDeleteButton offers ShowDeleteHistoryDialog`() {
     viewModel.effects.test().also { viewModel.actions.offer(UserClickedDeleteButton) }
-      .assertValue(ShowDeleteHistoryDialog(viewModel.effects, historyState(), historyDao))
+      .assertValue(
+        ShowDeleteHistoryDialog(
+          viewModel.effects,
+          historyState(),
+          historyDao
+        )
+      )
     viewModel.state.test().assertValue(historyState())
   }
 
   @Test
   internal fun `UserClickedDeleteSelectedHistoryItems offers ShowDeleteHistoryDialog`() {
     viewModel.effects.test().also { viewModel.actions.offer(UserClickedDeleteSelectedPages) }
-      .assertValue(ShowDeleteHistoryDialog(viewModel.effects, historyState(), historyDao))
+      .assertValue(
+        ShowDeleteHistoryDialog(
+          viewModel.effects,
+          historyState(),
+          historyDao
+        )
+      )
     viewModel.state.test().assertValue(historyState())
   }
 

core/src/test/java/org/kiwix/kiwixmobile/core/page/history/viewmodel/effects/ShowDeleteHistoryDialogTest.kt

@@ -24,7 +24,12 @@ internal class ShowDeleteHistoryDialogTest {
 
   @Test
   fun `invoke with shows dialog that offers ConfirmDelete action`() {
-    val showDeleteHistoryDialog = ShowDeleteHistoryDialog(effects, historyState(), historyDao)
+    val showDeleteHistoryDialog =
+      ShowDeleteHistoryDialog(
+        effects,
+        historyState(),
+        historyDao
+      )
     mockkActivityInjection(showDeleteHistoryDialog)
     val lambdaSlot = slot<() -> Unit>()
     showDeleteHistoryDialog.invokeWith(activity)
@@ -35,7 +40,8 @@ internal class ShowDeleteHistoryDialogTest {
 
   @Test
   fun `invoke with selected item shows dialog with delete selected items title`() {
-    val showDeleteHistoryDialog = ShowDeleteHistoryDialog(
+    val showDeleteHistoryDialog =
+      ShowDeleteHistoryDialog(
         effects,
         historyState(listOf(historyItem(isSelected = true))),
         historyDao
@@ -47,7 +53,12 @@ internal class ShowDeleteHistoryDialogTest {
 
   @Test
   fun `invoke with no selected items shows dialog with delete all items title`() {
-    val showDeleteHistoryDialog = ShowDeleteHistoryDialog(effects, historyState(), historyDao)
+    val showDeleteHistoryDialog =
+      ShowDeleteHistoryDialog(
+        effects,
+        historyState(),
+        historyDao
+      )
     mockkActivityInjection(showDeleteHistoryDialog)
     showDeleteHistoryDialog.invokeWith(activity)
     verify { dialogShower.show(DeleteAllHistory, any()) }