#2119 filtering and deletion works

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

@@ -23,7 +23,7 @@ import org.kiwix.kiwixmobile.core.history.adapter.HistoryListItem.HistoryItem
 sealed class Action {
   object ExitHistory : Action()
   object ExitActionModeMenu : Action()
-  object UserClickedDelete : Action()
+  object UserClickedConfirmDelete : Action()
   object UserClickedDeleteButton : Action()
   object UserClickedDeleteSelectedHistoryItems : Action()
 

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

@@ -15,7 +15,7 @@ import org.kiwix.kiwixmobile.core.history.viewmodel.Action.OnItemClick
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.OnItemLongClick
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.ToggleShowHistoryFromAllBooks
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UpdateHistory
-import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDelete
+import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedConfirmDelete
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDeleteButton
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDeleteSelectedHistoryItems
 import org.kiwix.kiwixmobile.core.history.viewmodel.State.Results
@@ -34,7 +34,7 @@ class HistoryViewModel @Inject constructor(
   private val sharedPreferenceUtil: SharedPreferenceUtil
 ) : ViewModel() {
   val state = MutableLiveData<State>().apply {
-    value = Results(emptyList(), sharedPreferenceUtil.showHistoryAllBooks)
+    value = Results(emptyList(), sharedPreferenceUtil.showHistoryAllBooks, zimReaderContainer.id)
   }
   val effects = PublishProcessor.create<SideEffect<*>>()
   val actions = PublishProcessor.create<Action>()
@@ -57,7 +57,7 @@ class HistoryViewModel @Inject constructor(
     when (action) {
       ExitHistory -> finishHistoryActivity(state)
       ExitActionModeMenu -> deselectAllHistoryItems(state)
-      UserClickedDelete -> offerDeletionOfItems(state)
+      UserClickedConfirmDelete -> offerDeletionOfItems(state)
       UserClickedDeleteButton -> offerShowDeleteDialog(state)
       is OnItemClick -> handleItemClick(state, action)
       is OnItemLongClick -> handleItemLongClick(state, action)
@@ -87,16 +87,9 @@ class HistoryViewModel @Inject constructor(
   private fun updateHistoryList(
     state: State,
     action: UpdateHistory
-  ): State {
+  ): State = when (state) {
-    return when (state) {
     is Results -> state.copy(historyItems = action.history)
-      is SelectionResults -> {
+    is SelectionResults -> Results(action.history, state.showAll, zimReaderContainer.id)
-        val selectedItems = state.selectedItems
-        state.copy(historyItems = action.history.map {
-          if (selectedItems.contains(it)) it.copy(isSelected = true) else it
-        })
-      }
-    }
   }
 
   private fun offerUpdateToShowAllToggle(
@@ -156,7 +149,11 @@ class HistoryViewModel @Inject constructor(
   private fun deselectAllHistoryItems(state: State): State {
     return when (state) {
       is SelectionResults -> {
-        state.copy(historyItems = state.historyItems.map { it.copy(isSelected = false) })
+        Results(
+          state.historyItems.map { it.copy(isSelected = false) },
+          state.showAll,
+          state.searchTerm
+        )
       }
       else -> state
     }

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

@@ -28,6 +28,7 @@ import java.util.Locale
 sealed class State(
   open val historyItems: List<HistoryItem>,
   open val showAll: Boolean,
+  open val currentZimId: String?,
   open val searchTerm: String = ""
 ) {
 
@@ -35,7 +36,12 @@ sealed class State(
 
   val historyListItems: List<HistoryListItem> by lazy {
     HeaderizableList<HistoryListItem, HistoryItem, DateItem>(historyItems
-      .filter { it.historyTitle.contains(searchTerm, true) }
+      .filter {
+        it.historyTitle.contains(
+          searchTerm,
+          true
+        ) && (it.zimId == currentZimId || showAll)
+      }
       .sortedByDescending { dateFormatter.parse(it.dateString) })
       .foldOverAddingHeaders(
         { historyItem -> DateItem(historyItem.dateString) },
@@ -49,10 +55,10 @@ sealed class State(
         isSelected = !isSelected
       } else it
     }
-    if (newList.isEmpty()) {
+    if (newList.none(HistoryItem::isSelected)) {
-      return Results(newList, showAll)
+      return Results(newList, showAll, currentZimId)
     }
-    return SelectionResults(newList, showAll, searchTerm)
+    return SelectionResults(newList, showAll, currentZimId, searchTerm)
   }
 
   // fun filterBasedOnSearchTerm(searchTerm: String): State =
@@ -66,15 +72,16 @@ sealed class State(
   data class Results(
     override val historyItems: List<HistoryItem>,
     override val showAll: Boolean,
+    override val currentZimId: String?,
     override val searchTerm: String = ""
-  ) : State(historyItems, showAll, searchTerm)
+  ) : State(historyItems, showAll, currentZimId, searchTerm)
 
   data class SelectionResults(
     override val historyItems: List<HistoryItem>,
     override val showAll: Boolean,
+    override val currentZimId: String?,
     override val searchTerm: String
-  ) : State(historyItems, showAll, searchTerm) {
+  ) : State(historyItems, showAll, currentZimId, searchTerm) {
-
     val selectedItems: List<HistoryItem> =
       historyListItems.filterIsInstance<HistoryItem>().filter(HistoryItem::isSelected)
   }

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

@@ -23,7 +23,7 @@ import io.reactivex.processors.PublishProcessor
 import org.kiwix.kiwixmobile.core.base.SideEffect
 import org.kiwix.kiwixmobile.core.history.HistoryActivity
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action
-import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDelete
+import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedConfirmDelete
 import org.kiwix.kiwixmobile.core.utils.DialogShower
 import org.kiwix.kiwixmobile.core.utils.KiwixDialog.DeleteAllHistory
 import javax.inject.Inject
@@ -35,7 +35,7 @@ data class ShowDeleteHistoryDialog(
   override fun invokeWith(activity: AppCompatActivity) {
     (activity as HistoryActivity).activityComponent.inject(this)
     dialogShower.show(DeleteAllHistory, {
-      actions.offer(UserClickedDelete)
+      actions.offer(UserClickedConfirmDelete)
     })
   }
 }

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

@@ -23,7 +23,7 @@ import org.kiwix.kiwixmobile.core.history.viewmodel.Action.Filter
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.OnItemClick
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.OnItemLongClick
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.ToggleShowHistoryFromAllBooks
-import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDelete
+import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedConfirmDelete
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDeleteButton
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDeleteSelectedHistoryItems
 import org.kiwix.kiwixmobile.core.history.viewmodel.State.Results
@@ -458,7 +458,7 @@ internal class HistoryViewModelTest {
     @Test
     fun `DeleteHistoryItems calls DeleteSelectedOrAllHistoryItems side effect`() {
       actionResultsInEffects(
-        UserClickedDelete,
+        UserClickedConfirmDelete,
         DeleteHistoryItems(viewModel.state.value!!.historyItems, historyDao)
       )
     }

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

@@ -8,7 +8,7 @@ import io.reactivex.processors.PublishProcessor
 import org.junit.jupiter.api.Test
 import org.kiwix.kiwixmobile.core.history.HistoryActivity
 import org.kiwix.kiwixmobile.core.history.viewmodel.Action
-import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedDelete
+import org.kiwix.kiwixmobile.core.history.viewmodel.Action.UserClickedConfirmDelete
 import org.kiwix.kiwixmobile.core.utils.DialogShower
 import org.kiwix.kiwixmobile.core.utils.KiwixDialog.DeleteSelectedHistory
 
@@ -30,6 +30,6 @@ internal class ShowDeleteHistoryDialogTest {
       dialogShower.show(DeleteSelectedHistory, capture(lambdaSlot))
     }
     lambdaSlot.captured.invoke()
-    verify { actions.offer(UserClickedDelete) }
+    verify { actions.offer(UserClickedConfirmDelete) }
   }
 }