runtime added maybe worked or not :(

buildSrc/src/main/kotlin/Libs.kt

@@ -423,4 +423,5 @@ object Libs {
   const val roomKtx = "androidx.room:room-ktx:" + Versions.roomVersion
 
   const val roomCompiler = "androidx.room:room-compiler:" + Versions.roomVersion
+  const val roomRuntime = "androidx.room:room-runtime:" + Versions.roomVersion
 }

buildSrc/src/main/kotlin/plugin/AllProjectConfigurer.kt

@@ -203,7 +203,10 @@ class AllProjectConfigurer {
       implementation(Libs.rxjava)
       implementation(Libs.preference_ktx)
       implementation(Libs.roomKtx)
+      annotationProcessor(Libs.roomCompiler)
+      implementation(Libs.roomRuntime)
       kapt(Libs.roomCompiler)
+      // ksp(Libs.roomCompiler)
     }
   }
 }

buildSrc/src/main/kotlin/plugin/ConvenienceExtensions.kt

@@ -54,5 +54,11 @@ internal fun DependencyHandlerScope.testImplementation(dependency: String) =
 internal fun DependencyHandlerScope.implementation(dependency: String) =
   addDependency("implementation", dependency)
 
+internal fun DependencyHandlerScope.annotationProcessor(dependency: String) =
+  addDependency("annotationProcessor", dependency)
+
+internal fun DependencyHandlerScope.ksp(dependency: String) =
+  addDependency("ksp", dependency)
+
 private fun DependencyHandlerScope.addDependency(configurationName: String, dependency: String) =
   add(configurationName, dependency)

core/src/main/java/org/kiwix/kiwixmobile/core/dao/HistoryRoomDao.kt

@@ -0,0 +1,94 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2022 Kiwix <android.kiwix.org>
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package org.kiwix.kiwixmobile.core.dao
+
+import androidx.lifecycle.Transformations.map
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.ProvidedTypeConverter
+import androidx.room.Query
+import androidx.room.TypeConverter
+import androidx.room.Update
+import io.objectbox.Box
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.launch
+import org.kiwix.kiwixmobile.core.dao.entities.HistoryEntity
+import org.kiwix.kiwixmobile.core.dao.entities.HistoryRoomEntity
+import org.kiwix.kiwixmobile.core.page.adapter.Page
+import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem
+
+@Dao
+abstract class HistoryRoomDao : BasePageDao {
+  @Query("SELECT * FROM HistoryRoomEntity ORDER BY HistoryRoomEntity.timeStamp DESC")
+  abstract fun historyRoomEntity(): Flow<List<HistoryRoomEntity>>
+
+  fun history(): Flow<List<Page>> = historyRoomEntity().map {
+    it.map(HistoryListItem::HistoryItem)
+  }
+
+  // // TODO: After refactoring all the database we should implement [PageDao]
+  override fun pages() = history()
+  override fun deletePages(pagesToDelete: List<Page>) =
+    deleteHistory(pagesToDelete as List<HistoryListItem.HistoryItem>)
+
+  @Query("SELECT * FROM HistoryRoomEntity WHERE historyUrl LIKE :url AND dateString LIKE :date")
+  abstract fun getHistoryItem(url: String, date: String): HistoryListItem.HistoryItem
+
+  fun getHistoryItem(historyItem: HistoryListItem.HistoryItem): HistoryListItem.HistoryItem =
+    getHistoryItem(historyItem.historyUrl, historyItem.dateString)
+
+  @Update
+  abstract fun updateHistoryItem(historyItem: HistoryListItem.HistoryItem)
+
+  fun saveHistory(historyItem: HistoryListItem.HistoryItem) {
+    val item = getHistoryItem(historyItem)
+    updateHistoryItem(item)
+  }
+
+  @Delete
+  abstract fun deleteHistory(historyList: List<HistoryListItem.HistoryItem>)
+
+  @Query("DELETE FROM HistoryRoomEntity")
+  abstract fun deleteAllHistory()
+
+  fun migrationToRoomHistory(
+    box: Box<HistoryEntity>
+  ) {
+    val historyEntityList = box.all
+    historyEntityList.forEachIndexed { _, item ->
+      CoroutineScope(Dispatchers.IO).launch {
+        // saveHistory(HistoryListItem.HistoryItem(item))
+        // Todo Should we remove object store data now?
+      }
+    }
+  }
+}
+
+class HistoryRoomDaoCoverts {
+  @TypeConverter
+  fun fromHistoryRoomEntity(historyRoomEntity: HistoryRoomEntity): HistoryListItem =
+    HistoryListItem.HistoryItem(historyRoomEntity)
+
+  @TypeConverter
+  fun historyItemToHistoryListItem(historyItem: HistoryListItem.HistoryItem): HistoryRoomEntity =
+    HistoryRoomEntity(historyItem)
+}

core/src/main/java/org/kiwix/kiwixmobile/core/dao/PageDao.kt

@@ -19,9 +19,19 @@
 package org.kiwix.kiwixmobile.core.dao
 
 import io.reactivex.Flowable
+import kotlinx.coroutines.flow.Flow
 import org.kiwix.kiwixmobile.core.page.adapter.Page
 
-interface PageDao {
-  fun pages(): Flowable<List<Page>>
+interface PageDao : BasePageDao {
+  override fun pages(): Flowable<List<Page>>
+}
+
+interface PageRoomDao : BasePageDao {
+  override fun pages(): Flow<List<Page>>
+}
+
+interface BasePageDao {
+  fun pages(): Any
   fun deletePages(pagesToDelete: List<Page>)
 }
+

core/src/main/java/org/kiwix/kiwixmobile/core/dao/entities/HistroryRoomEntity.kt

@@ -0,0 +1,48 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2022 Kiwix <android.kiwix.org>
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package org.kiwix.kiwixmobile.core.dao.entities
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem
+
+@Entity
+data class HistoryRoomEntity(
+  @PrimaryKey var id: Long = 0L,
+  val zimId: String,
+  val zimName: String,
+  val zimFilePath: String,
+  val favicon: String?,
+  val historyUrl: String,
+  val historyTitle: String,
+  val dateString: String,
+  val timeStamp: Long
+) {
+  constructor(historyItem: HistoryListItem.HistoryItem) : this(
+    historyItem.databaseId,
+    historyItem.zimId,
+    historyItem.zimName,
+    historyItem.zimFilePath,
+    historyItem.favicon,
+    historyItem.historyUrl,
+    historyItem.title,
+    historyItem.dateString,
+    historyItem.timeStamp
+  )
+}

core/src/main/java/org/kiwix/kiwixmobile/core/data/DataModule.kt

@@ -17,8 +17,11 @@
  */
 package org.kiwix.kiwixmobile.core.data
 
+import android.content.Context
 import dagger.Module
 import dagger.Provides
+import io.objectbox.BoxStore
+import org.kiwix.kiwixmobile.core.data.local.KiwixRoomDatabase
 import javax.inject.Singleton
 
 @Module

core/src/main/java/org/kiwix/kiwixmobile/core/data/Repository.kt

@@ -22,7 +22,7 @@ import io.reactivex.Completable
 import io.reactivex.Flowable
 import io.reactivex.Scheduler
 import io.reactivex.Single
-import org.kiwix.kiwixmobile.core.dao.HistoryDao
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDao
 import org.kiwix.kiwixmobile.core.dao.NewBookDao
 import org.kiwix.kiwixmobile.core.dao.NewBookmarksDao
 import org.kiwix.kiwixmobile.core.dao.NewLanguagesDao
@@ -54,7 +54,7 @@ class Repository @Inject internal constructor(
   @param:MainThread private val mainThread: Scheduler,
   private val bookDao: NewBookDao,
   private val bookmarksDao: NewBookmarksDao,
-  private val historyDao: HistoryDao,
+  private val historyRoomDao: HistoryRoomDao,
   private val notesDao: NewNoteDao,
   private val languageDao: NewLanguagesDao,
   private val recentSearchDao: NewRecentSearchRoomDao,
@@ -90,17 +90,17 @@ class Repository @Inject internal constructor(
       .subscribeOn(io)
 
   override fun saveHistory(history: HistoryItem) =
-    Completable.fromAction { historyDao.saveHistory(history) }
+    Completable.fromAction { historyRoomDao.saveHistory(history) }
       .subscribeOn(io)
 
   override fun deleteHistory(historyList: List<HistoryListItem>) =
     Completable.fromAction {
-      historyDao.deleteHistory(historyList.filterIsInstance(HistoryItem::class.java))
+      historyRoomDao.deleteHistory(historyList.filterIsInstance(HistoryItem::class.java))
     }
       .subscribeOn(io)
 
   override fun clearHistory() = Completable.fromAction {
-    historyDao.deleteAllHistory()
+    historyRoomDao.deleteAllHistory()
     recentSearchDao.deleteSearchHistory()
   }.subscribeOn(io)
 

core/src/main/java/org/kiwix/kiwixmobile/core/data/local/KiwixRoomDatabase.kt

@@ -19,29 +19,46 @@
 package org.kiwix.kiwixmobile.core.data.local
 
 import android.content.Context
+import android.util.Log
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
 import io.objectbox.BoxStore
 import io.objectbox.kotlin.boxFor
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDao
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDaoCoverts
 import org.kiwix.kiwixmobile.core.dao.NewRecentSearchRoomDao
+import org.kiwix.kiwixmobile.core.dao.entities.HistoryRoomEntity
 import org.kiwix.kiwixmobile.core.dao.entities.RecentSearchRoomEntity
+import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem
 
 @Suppress("UnnecessaryAbstractClass")
-@Database(entities = [RecentSearchRoomEntity::class], version = 1)
+@Database(
+  entities = [RecentSearchRoomEntity::class, HistoryRoomEntity::class],
+  version = 2
+)
+@TypeConverters(HistoryRoomDaoCoverts::class)
 abstract class KiwixRoomDatabase : RoomDatabase() {
   abstract fun newRecentSearchRoomDao(): NewRecentSearchRoomDao
+  abstract fun historyRoomDao(): HistoryRoomDao
 
   companion object {
     private var db: KiwixRoomDatabase? = null
+    private var box: BoxStore? = null
     fun getInstance(context: Context, boxStore: BoxStore): KiwixRoomDatabase {
+      box = boxStore
       return db ?: synchronized(KiwixRoomDatabase::class) {
         return@getInstance db
           ?: Room.databaseBuilder(context, KiwixRoomDatabase::class.java, "KiwixRoom.db")
             // We have already database name called kiwix.db in order to avoid complexity we named as
             // kiwixRoom.db
+            // .addMigrations(MIGRATION_1_2)
             .build().also {
               it.migrateRecentSearch(boxStore)
+              it.migrateHistory(boxStore)
             }
       }
     }
@@ -49,9 +66,21 @@ abstract class KiwixRoomDatabase : RoomDatabase() {
     fun destroyInstance() {
       db = null
     }
+
+    val MIGRATION_1_2 = object : Migration(1, 2) {
+      override fun migrate(database: SupportSQLiteDatabase) {
+        db!!::migrateHistory.let { box?.let(it) } ?: run {
+          Log.d("gouri", "box store is null")
+        }
+      }
+    }
   }
 
   fun migrateRecentSearch(boxStore: BoxStore) {
     newRecentSearchRoomDao().migrationToRoomInsert(boxStore.boxFor())
   }
+
+  fun migrateHistory(boxStore: BoxStore) {
+    historyRoomDao().migrationToRoomHistory(boxStore.boxFor())
+  }
 }

core/src/main/java/org/kiwix/kiwixmobile/core/di/components/CoreComponent.kt

@@ -28,6 +28,7 @@ import org.kiwix.kiwixmobile.core.CoreApp
 import org.kiwix.kiwixmobile.core.StorageObserver
 import org.kiwix.kiwixmobile.core.dao.FetchDownloadDao
 import org.kiwix.kiwixmobile.core.dao.HistoryDao
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDao
 import org.kiwix.kiwixmobile.core.dao.NewBookDao
 import org.kiwix.kiwixmobile.core.dao.NewBookmarksDao
 import org.kiwix.kiwixmobile.core.dao.NewLanguagesDao
@@ -36,6 +37,7 @@ import org.kiwix.kiwixmobile.core.dao.NewRecentSearchDao
 import org.kiwix.kiwixmobile.core.dao.NewRecentSearchRoomDao
 import org.kiwix.kiwixmobile.core.data.DataModule
 import org.kiwix.kiwixmobile.core.data.DataSource
+import org.kiwix.kiwixmobile.core.data.local.KiwixRoomDatabase
 import org.kiwix.kiwixmobile.core.data.local.dao.BookDao
 import org.kiwix.kiwixmobile.core.data.local.dao.BookmarksDao
 import org.kiwix.kiwixmobile.core.data.remote.KiwixService
@@ -77,6 +79,7 @@ interface CoreComponent {
     fun build(): CoreComponent
   }
 
+  fun kiwixRoomDataBase(): KiwixRoomDatabase
   fun activityComponentBuilder(): CoreActivityComponent.Builder
   fun zimReaderContainer(): ZimReaderContainer
   fun sharedPrefUtil(): SharedPreferenceUtil
@@ -93,6 +96,7 @@ interface CoreComponent {
   fun newLanguagesDao(): NewLanguagesDao
   fun recentSearchDao(): NewRecentSearchDao
   fun recentSearchRoomDao(): NewRecentSearchRoomDao
+  fun historyRoomDao(): HistoryRoomDao
   fun newBookmarksDao(): NewBookmarksDao
   fun connectivityManager(): ConnectivityManager
   fun context(): Context

core/src/main/java/org/kiwix/kiwixmobile/core/di/modules/ApplicationModule.kt

@@ -25,10 +25,12 @@ import android.net.ConnectivityManager
 import android.os.storage.StorageManager
 import dagger.Module
 import dagger.Provides
+import io.objectbox.BoxStore
 import io.reactivex.Scheduler
 import io.reactivex.android.schedulers.AndroidSchedulers
 import io.reactivex.schedulers.Schedulers
 import org.kiwix.kiwixmobile.core.NightModeConfig
+import org.kiwix.kiwixmobile.core.data.local.KiwixRoomDatabase
 import org.kiwix.kiwixmobile.core.di.qualifiers.Computation
 import org.kiwix.kiwixmobile.core.di.qualifiers.IO
 import org.kiwix.kiwixmobile.core.di.qualifiers.MainThread
@@ -96,4 +98,15 @@ class ApplicationModule {
   @Singleton
   fun provideConnectivityManager(context: Context): ConnectivityManager =
     context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+
+  @Singleton
+  @Provides
+  fun provideYourDatabase(
+    context: Context,
+    boxStore: BoxStore
+  ) =
+    KiwixRoomDatabase.getInstance(
+      context = context,
+      boxStore
+    )
 }

core/src/main/java/org/kiwix/kiwixmobile/core/di/modules/DatabaseModule.kt

@@ -48,6 +48,8 @@ open class DatabaseModule {
     return boxStore!!
   }
 
+ // The reason we can construct a database for the repo
+
   @Provides @Singleton fun providesNewBookDao(boxStore: BoxStore): NewBookDao =
     NewBookDao(boxStore.boxFor())
 
@@ -74,18 +76,22 @@ open class DatabaseModule {
   ): FetchDownloadDao =
     FetchDownloadDao(boxStore.boxFor(), newBookDao)
 
-  @Singleton
-  @Provides
-  fun provideYourDatabase(
-    context: Context,
-    boxStore: BoxStore
-  ) =
-    KiwixRoomDatabase.getInstance(
-      context = context,
-      boxStore
-    ) // The reason we can construct a database for the repo
+  // @Singleton
+  // @Provides
+  // fun provideYourDatabase(
+  //   context: Context,
+  //   boxStore: BoxStore
+  // ) =
+  //   KiwixRoomDatabase.getInstance(
+  //     context = context,
+  //     boxStore
+  //   ) // The reason we can construct a database for the repo
 
   @Singleton
   @Provides
   fun provideNewRecentSearchRoomDao(db: KiwixRoomDatabase) = db.newRecentSearchRoomDao()
+
+  @Provides
+  @Singleton
+  fun provideHistoryDao(db: KiwixRoomDatabase) = db.historyRoomDao()
 }

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

@@ -61,7 +61,7 @@ class BookmarkViewModel @Inject constructor(
     state.copy(pageItems = state.pageItems.map { it.copy(isSelected = false) })
 
   override fun createDeletePageDialogEffect(state: BookmarkState) =
-    ShowDeleteBookmarksDialog(effects, state, pageDao)
+    ShowDeleteBookmarksDialog(effects, state, basePageDao)
 
   override fun copyWithNewItems(state: BookmarkState, newItems: List<BookmarkItem>): BookmarkState =
     state.copy(pageItems = newItems)

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.PageDao
+import org.kiwix.kiwixmobile.core.dao.BasePageDao
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.cachedComponent
 import org.kiwix.kiwixmobile.core.page.bookmark.adapter.BookmarkItem
 import org.kiwix.kiwixmobile.core.page.viewmodel.PageState
@@ -34,14 +34,14 @@ import javax.inject.Inject
 data class ShowDeleteBookmarksDialog(
   private val effects: PublishProcessor<SideEffect<*>>,
   private val state: PageState<BookmarkItem>,
-  private val pageDao: PageDao
+  private val basePageDao: BasePageDao
 ) : SideEffect<Unit> {
   @Inject lateinit var dialogShower: DialogShower
   override fun invokeWith(activity: AppCompatActivity) {
     activity.cachedComponent.inject(this)
     dialogShower.show(
       if (state.isInSelectionState) DeleteSelectedBookmarks else DeleteAllBookmarks,
-      { effects.offer(DeletePageItems(state, pageDao)) }
+      { effects.offer(DeletePageItems(state, basePageDao)) }
     )
   }
 }

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

@@ -17,13 +17,15 @@
  */
 package org.kiwix.kiwixmobile.core.page.history.adapter
 
+import androidx.room.Entity
+import androidx.room.PrimaryKey
 import org.kiwix.kiwixmobile.core.dao.entities.HistoryEntity
+import org.kiwix.kiwixmobile.core.dao.entities.HistoryRoomEntity
 import org.kiwix.kiwixmobile.core.page.adapter.Page
 import org.kiwix.kiwixmobile.core.page.adapter.PageRelated
 import org.kiwix.kiwixmobile.core.reader.ZimFileReader
 
 sealed class HistoryListItem : PageRelated {
-
   data class HistoryItem constructor(
     val databaseId: Long = 0L,
     override val zimId: String,
@@ -68,6 +70,19 @@ sealed class HistoryListItem : PageRelated {
       historyEntity.timeStamp,
       false
     )
+
+    constructor(historyRoomEntity: HistoryRoomEntity) : this(
+      historyRoomEntity.id,
+      historyRoomEntity.zimId,
+      historyRoomEntity.zimName,
+      historyRoomEntity.zimFilePath,
+      historyRoomEntity.favicon,
+      historyRoomEntity.historyUrl,
+      historyRoomEntity.historyTitle,
+      historyRoomEntity.dateString,
+      historyRoomEntity.timeStamp,
+      false
+    )
   }
 
   data class DateItem(
@@ -75,3 +90,71 @@ sealed class HistoryListItem : PageRelated {
     override val id: Long = dateString.hashCode().toLong()
   ) : HistoryListItem()
 }
+
+// @Entity
+// sealed class HistoryListRoomItem : PageRelated {
+//   @Entity
+//   data class HistoryItem constructor(
+//     val databaseId: Long = 0L,
+//     override val zimId: String,
+//     val zimName: String,
+//     override val zimFilePath: String,
+//     override val favicon: String?,
+//     val historyUrl: String,
+//     override val title: String,
+//     val dateString: String,
+//     val timeStamp: Long,
+//     override var isSelected: Boolean = false,
+//     override val id: Long = databaseId,
+//     override val url: String = historyUrl
+//   ) : HistoryListItem(), Page {
+//
+//     constructor(
+//       url: String,
+//       title: String,
+//       dateString: String,
+//       timeStamp: Long,
+//       zimFileReader: ZimFileReader
+//     ) : this(
+//       zimId = zimFileReader.id,
+//       zimName = zimFileReader.name,
+//       zimFilePath = zimFileReader.zimFile.canonicalPath,
+//       favicon = zimFileReader.favicon,
+//       historyUrl = url,
+//       title = title,
+//       dateString = dateString,
+//       timeStamp = timeStamp
+//     )
+//
+//     constructor(historyEntity: HistoryEntity) : this(
+//       historyEntity.id,
+//       historyEntity.zimId,
+//       historyEntity.zimName,
+//       historyEntity.zimFilePath,
+//       historyEntity.favicon,
+//       historyEntity.historyUrl,
+//       historyEntity.historyTitle,
+//       historyEntity.dateString,
+//       historyEntity.timeStamp,
+//       false
+//     )
+//
+//     constructor(historyRoomEntity: HistoryRoomEntity) : this(
+//       historyRoomEntity.id,
+//       historyRoomEntity.zimId,
+//       historyRoomEntity.zimName,
+//       historyRoomEntity.zimFilePath,
+//       historyRoomEntity.favicon,
+//       historyRoomEntity.historyUrl,
+//       historyRoomEntity.historyTitle,
+//       historyRoomEntity.dateString,
+//       historyRoomEntity.timeStamp,
+//       false
+//     )
+//   }
+//
+//   data class DateItem(
+//     val dateString: String,
+//     override val id: Long = dateString.hashCode().toLong()
+//   ) : HistoryListItem()
+// }

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

@@ -18,7 +18,7 @@
 
 package org.kiwix.kiwixmobile.core.page.history.viewmodel
 
-import org.kiwix.kiwixmobile.core.dao.HistoryDao
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDao
 import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem.HistoryItem
 import org.kiwix.kiwixmobile.core.page.history.viewmodel.effects.ShowDeleteHistoryDialog
 import org.kiwix.kiwixmobile.core.page.history.viewmodel.effects.UpdateAllHistoryPreference
@@ -29,10 +29,10 @@ import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 import javax.inject.Inject
 
 class HistoryViewModel @Inject constructor(
-  historyDao: HistoryDao,
+  historyRoomDao: HistoryRoomDao,
   zimReaderContainer: ZimReaderContainer,
   sharedPrefs: SharedPreferenceUtil
-) : PageViewModel<HistoryItem, HistoryState>(historyDao, sharedPrefs, zimReaderContainer) {
+) : PageViewModel<HistoryItem, HistoryState>(historyRoomDao, sharedPrefs, zimReaderContainer) {
 
   override fun initialState(): HistoryState =
     HistoryState(emptyList(), sharedPreferenceUtil.showHistoryAllBooks, zimReaderContainer.id)
@@ -58,7 +58,7 @@ class HistoryViewModel @Inject constructor(
   }
 
   override fun createDeletePageDialogEffect(state: HistoryState) =
-    ShowDeleteHistoryDialog(effects, state, pageDao)
+    ShowDeleteHistoryDialog(effects, state, basePageDao)
 
   override fun deselectAllPages(state: HistoryState): HistoryState =
     state.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.PageDao
+import org.kiwix.kiwixmobile.core.dao.BasePageDao
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.cachedComponent
 import org.kiwix.kiwixmobile.core.page.history.viewmodel.HistoryState
 import org.kiwix.kiwixmobile.core.page.viewmodel.effects.DeletePageItems
@@ -33,13 +33,13 @@ import javax.inject.Inject
 data class ShowDeleteHistoryDialog(
   private val effects: PublishProcessor<SideEffect<*>>,
   private val state: HistoryState,
-  private val pageDao: PageDao
+  private val basePageDao: BasePageDao
 ) : SideEffect<Unit> {
   @Inject lateinit var dialogShower: DialogShower
   override fun invokeWith(activity: AppCompatActivity) {
     activity.cachedComponent.inject(this)
     dialogShower.show(if (state.isInSelectionState) DeleteSelectedHistory else DeleteAllHistory, {
-      effects.offer(DeletePageItems(state, pageDao))
+      effects.offer(DeletePageItems(state, basePageDao))
     })
   }
 }

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

@@ -66,7 +66,7 @@ class NotesViewModel @Inject constructor(
     state.copy(pageItems = state.pageItems.map { it.copy(isSelected = false) })
 
   override fun createDeletePageDialogEffect(state: NotesState) =
-    ShowDeleteNotesDialog(effects, state, pageDao)
+    ShowDeleteNotesDialog(effects, state, basePageDao)
 
   override fun onItemClick(page: Page) =
     ShowOpenNoteDialog(effects, page, zimReaderContainer)

core/src/main/java/org/kiwix/kiwixmobile/core/page/notes/viewmodel/effects/ShowDeleteNotesDialog.kt

@@ -22,7 +22,7 @@ import android.util.Log
 import androidx.appcompat.app.AppCompatActivity
 import io.reactivex.processors.PublishProcessor
 import org.kiwix.kiwixmobile.core.base.SideEffect
-import org.kiwix.kiwixmobile.core.dao.PageDao
+import org.kiwix.kiwixmobile.core.dao.BasePageDao
 import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.cachedComponent
 import org.kiwix.kiwixmobile.core.page.notes.viewmodel.NotesState
 import org.kiwix.kiwixmobile.core.page.viewmodel.effects.DeletePageItems
@@ -34,7 +34,7 @@ import javax.inject.Inject
 data class ShowDeleteNotesDialog(
   private val effects: PublishProcessor<SideEffect<*>>,
   private val state: NotesState,
-  private val pageDao: PageDao
+  private val basePageDao: BasePageDao
 ) : SideEffect<Unit> {
   @Inject lateinit var dialogShower: DialogShower
   override fun invokeWith(activity: AppCompatActivity) {
@@ -43,7 +43,7 @@ data class ShowDeleteNotesDialog(
     dialogShower.show(
       if (state.isInSelectionState) DeleteSelectedNotes else DeleteAllNotes,
       {
-        effects.offer(DeletePageItems(state, pageDao))
+        effects.offer(DeletePageItems(state, basePageDao))
       }
     )
   }

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

@@ -20,12 +20,17 @@ package org.kiwix.kiwixmobile.core.page.viewmodel
 
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
 import io.reactivex.disposables.CompositeDisposable
 import io.reactivex.disposables.Disposable
 import io.reactivex.processors.PublishProcessor
 import io.reactivex.schedulers.Schedulers
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.launch
 import org.kiwix.kiwixmobile.core.base.SideEffect
+import org.kiwix.kiwixmobile.core.dao.BasePageDao
 import org.kiwix.kiwixmobile.core.dao.PageDao
+import org.kiwix.kiwixmobile.core.dao.PageRoomDao
 import org.kiwix.kiwixmobile.core.page.adapter.Page
 import org.kiwix.kiwixmobile.core.page.viewmodel.Action.Exit
 import org.kiwix.kiwixmobile.core.page.viewmodel.Action.ExitActionModeMenu
@@ -42,7 +47,7 @@ import org.kiwix.kiwixmobile.core.search.viewmodel.effects.PopFragmentBackstack
 import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 
 abstract class PageViewModel<T : Page, S : PageState<T>>(
-  protected val pageDao: PageDao,
+  protected val basePageDao: BasePageDao,
   val sharedPreferenceUtil: SharedPreferenceUtil,
   val zimReaderContainer: ZimReaderContainer
 ) : ViewModel() {
@@ -70,11 +75,25 @@ abstract class PageViewModel<T : Page, S : PageState<T>>(
       .subscribe(state::postValue, Throwable::printStackTrace)
 
   protected fun addDisposablesToCompositeDisposable() {
-    compositeDisposable.addAll(
-      viewStateReducer(),
-      pageDao.pages().subscribeOn(Schedulers.io())
-        .subscribe({ actions.offer(UpdatePages(it)) }, Throwable::printStackTrace)
-    )
+    when (basePageDao) {
+      is PageDao -> {
+        compositeDisposable.addAll(
+          viewStateReducer(),
+          basePageDao.pages().subscribeOn(Schedulers.io())
+            .subscribe({ actions.offer(UpdatePages(it)) }, Throwable::printStackTrace)
+        )
+      }
+      is PageRoomDao -> {
+        viewModelScope.launch {
+          try {
+            // basePageDao.pages().collect(::UpdatePages)
+          } catch (exception: Exception) {
+            exception.printStackTrace()
+          }
+        }
+      }
+
+    }
   }
 
   private fun reduce(action: Action, state: S): S = when (action) {

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

@@ -20,19 +20,19 @@ package org.kiwix.kiwixmobile.core.page.viewmodel.effects
 
 import androidx.appcompat.app.AppCompatActivity
 import org.kiwix.kiwixmobile.core.base.SideEffect
-import org.kiwix.kiwixmobile.core.dao.PageDao
+import org.kiwix.kiwixmobile.core.dao.BasePageDao
 import org.kiwix.kiwixmobile.core.page.adapter.Page
 import org.kiwix.kiwixmobile.core.page.viewmodel.PageState
 
 data class DeletePageItems(
   private val state: PageState<*>,
-  private val pageDao: PageDao
+  private val basePageDao: BasePageDao
 ) : SideEffect<Unit> {
   override fun invokeWith(activity: AppCompatActivity) {
     if (state.isInSelectionState) {
-      pageDao.deletePages(state.pageItems.filter(Page::isSelected))
+      basePageDao.deletePages(state.pageItems.filter(Page::isSelected))
     } else {
-      pageDao.deletePages(state.pageItems)
+      basePageDao.deletePages(state.pageItems)
     }
   }
 }