Created HistoryRoomDao, and HistoryRoomEntity for saving the data in room database.

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

@@ -0,0 +1,91 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2024 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.room.Dao
+import androidx.room.Delete
+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)
+  }
+
+  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 +19,18 @@
 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/HistoryRoomEntity.kt

@@ -0,0 +1,48 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2024 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.HistoryItem
+
+@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: 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/KiwixRoomDatabase.kt

@@ -22,11 +22,15 @@ import android.content.Context
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+import org.kiwix.kiwixmobile.core.dao.HistoryRoomDaoCoverts
 import org.kiwix.kiwixmobile.core.dao.RecentSearchRoomDao
+import org.kiwix.kiwixmobile.core.dao.entities.HistoryRoomEntity
 import org.kiwix.kiwixmobile.core.dao.entities.RecentSearchRoomEntity
 
 @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 recentSearchRoomDao(): RecentSearchRoomDao
 

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

@@ -18,6 +18,7 @@
 package org.kiwix.kiwixmobile.core.page.history.adapter
 
 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
@@ -70,6 +71,19 @@ 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(