Merge pull request #2996 from kiwix/Issue#2995

Convert BookDao.java into kotlin

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

@@ -0,0 +1,92 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2019 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.data.local.dao
+
+import com.yahoo.squidb.data.SquidCursor
+import com.yahoo.squidb.sql.Query
+import org.kiwix.kiwixmobile.core.data.local.KiwixDatabase
+import org.kiwix.kiwixmobile.core.data.local.entity.BookDatabaseEntity
+import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity
+import org.kiwix.kiwixmobile.core.utils.files.FileUtils.hasPart
+import java.io.File
+import javax.inject.Inject
+
+/**
+ * Dao class for books
+ */
+@Deprecated("")
+class BookDao @Inject constructor(private val kiwixDatabase: KiwixDatabase) {
+  private fun setBookDetails(
+    book: LibraryNetworkEntity.Book,
+    bookCursor: SquidCursor<BookDatabaseEntity>
+  ) {
+    book.id = bookCursor.get(BookDatabaseEntity.BOOK_ID)!!
+    book.title = bookCursor.get(BookDatabaseEntity.TITLE)!!
+    book.description = bookCursor.get(BookDatabaseEntity.DESCRIPTION)
+    book.language = bookCursor.get(BookDatabaseEntity.LANGUAGE)!!
+    book.creator = bookCursor.get(BookDatabaseEntity.BOOK_CREATOR)!!
+    book.publisher = bookCursor.get(BookDatabaseEntity.PUBLISHER)!!
+    book.date = bookCursor.get(BookDatabaseEntity.DATE)!!
+    book.file = bookCursor.get(BookDatabaseEntity.URL)?.let(::File)
+    book.articleCount = bookCursor.get(BookDatabaseEntity.ARTICLE_COUNT)
+    book.mediaCount = bookCursor.get(BookDatabaseEntity.MEDIA_COUNT)
+    book.size = bookCursor.get(BookDatabaseEntity.SIZE)!!
+    book.favicon = bookCursor.get(BookDatabaseEntity.FAVICON)!!
+    book.bookName = bookCursor.get(BookDatabaseEntity.NAME)
+  }
+
+  val books: ArrayList<LibraryNetworkEntity.Book>
+    @Suppress("TooGenericExceptionCaught")
+    get() {
+      val books = ArrayList<LibraryNetworkEntity.Book>()
+      try {
+        val bookCursor = kiwixDatabase.query(
+          BookDatabaseEntity::class.java,
+          Query.select()
+        )
+        while (bookCursor.moveToNext()) {
+          val book = LibraryNetworkEntity.Book()
+          setBookDetails(book, bookCursor)
+          books.add(book)
+        }
+      } catch (exception: Exception) {
+        exception.printStackTrace()
+      }
+      return filterBookResults(books)
+    }
+
+  fun filterBookResults(
+    books: ArrayList<LibraryNetworkEntity.Book>
+  ): ArrayList<LibraryNetworkEntity.Book> {
+    val filteredBookList = ArrayList<LibraryNetworkEntity.Book>()
+    books
+      .asSequence()
+      .filterNot { it.file?.let(::hasPart) == true }
+      .forEach {
+        if (it.file?.exists() == true) {
+          filteredBookList.add(it)
+        } else {
+          kiwixDatabase.deleteWhere(
+            BookDatabaseEntity::class.java,
+            BookDatabaseEntity.URL.eq(it.file?.path)
+          )
+        }
+      }
+    return filteredBookList
+  }
+}