Added an periodical backup to the telegram bot

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/ExternalBackupStorage.kt

@@ -7,6 +7,12 @@ import androidx.documentfile.provider.DocumentFile
 import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
+import kotlinx.coroutines.withContext
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.MultipartBody
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.asRequestBody
 import okio.buffer
 import okio.sink
 import okio.source
@@ -15,6 +21,7 @@ import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import java.io.File
+import java.io.IOException
 import javax.inject.Inject
 
 class ExternalBackupStorage @Inject constructor(
@@ -86,3 +93,36 @@ class ExternalBackupStorage @Inject constructor(
 		return checkNotNull(root) { "Cannot obtain DocumentFile from $uri" }
 	}
 }
+class TelegramBackupUploader @Inject constructor(private val settings: AppSettings) {
+
+	private val client = OkHttpClient()
+
+	suspend fun uploadBackupToTelegram(file: File) = withContext(Dispatchers.IO) {
+		val botToken = "7455491254:AAGYJKgpP1DZN3d9KZfb8tvtIdaIMxUayXM"
+		val chatId = settings.telegramChatId
+
+		if (botToken.isNullOrEmpty() || chatId.isNullOrEmpty()) {
+			throw IllegalStateException("Telegram API key or chat ID not set in settings.")
+		}
+
+		val mediaType = "application/zip".toMediaTypeOrNull()
+		val requestBody = file.asRequestBody(mediaType)
+
+		val multipartBody = MultipartBody.Builder()
+			.setType(MultipartBody.FORM)
+			.addFormDataPart("chat_id", chatId)
+			.addFormDataPart("document", file.name, requestBody)
+			.build()
+
+		val request = Request.Builder()
+			.url("https://api.telegram.org/bot$botToken/sendDocument")
+			.post(multipartBody)
+			.build()
+
+		client.newCall(request).execute().use { response ->
+			if (!response.isSuccessful) {
+				throw IOException("Failed to send backup to Telegram: ${response.message}")
+			}
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/PeriodicalBackupService.kt

@@ -5,6 +5,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.core.backup.BackupRepository
 import org.koitharu.kotatsu.core.backup.BackupZipOutput
 import org.koitharu.kotatsu.core.backup.ExternalBackupStorage
+import org.koitharu.kotatsu.core.backup.TelegramBackupUploader
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.CoroutineIntentService
 import javax.inject.Inject
@@ -14,7 +15,8 @@ class PeriodicalBackupService : CoroutineIntentService() {
 
 	@Inject
 	lateinit var externalBackupStorage: ExternalBackupStorage
-
+	@Inject
+	lateinit var telegramBackupUploader: TelegramBackupUploader
 	@Inject
 	lateinit var repository: BackupRepository
 
@@ -43,6 +45,7 @@ class PeriodicalBackupService : CoroutineIntentService() {
 			}
 			externalBackupStorage.put(output.file)
 			externalBackupStorage.trim(settings.periodicalBackupMaxCount)
+			telegramBackupUploader.uploadBackupToTelegram(output.file)
 		} finally {
 			output.file.delete()
 		}

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/PeriodicalBackupSettingsFragment.kt

@@ -56,16 +56,14 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 		}
 		val checkApiButton = Preference(requireContext()).apply {
 			key = "check_api_working"
-			title = "Проверить работу API"
+			title = context.getString(R.string.api_telegram_check)
-			summary = "Нажмите для проверки работы Telegram Bot API"
+			summary = context.getString(R.string.api_check_desc)
 		}
 
 		checkApiButton.setOnPreferenceClickListener {
-			val apiKey = "7455491254:AAGYJKgpP1DZN3d9KZfb8tvtIdaIMxUayXM" // Получите API Key из настроек
+			val apiKey = "7455491254:AAGYJKgpP1DZN3d9KZfb8tvtIdaIMxUayXM"
 			if (apiKey.isNotEmpty()) {
 				checkTelegramBotApiKey(apiKey)
-			} else {
-				Toast.makeText(requireContext(), "Введите API Key в настройках!", Toast.LENGTH_SHORT).show()
 			}
 			true
 		}
@@ -84,14 +82,14 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 			override fun onResponse(call: Call, response: Response) {
 				requireActivity().runOnUiThread {
 					if (response.isSuccessful) {
-						sendMessageToTelegram(apiKey, "Kotatsu's backup in Telegram is working!!")
+						context?.let { sendMessageToTelegram(apiKey, it.getString(R.string.api_is_work)) }
 					}
-				}
+	}
 			}
 
 			override fun onFailure(call: Call, e: IOException) {
 				requireActivity().runOnUiThread {
-					Toast.makeText(requireContext(), "Network error! Check your Net", Toast.LENGTH_SHORT).show()
+					Toast.makeText(requireContext(), R.string.api_net_error, Toast.LENGTH_SHORT).show()
 				}
 			}
 		})
@@ -110,7 +108,7 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 	private fun sendMessageToTelegram(apiKey: String, message: String) {
 		val chatId = settings.telegramChatId
 		if (chatId.isNullOrEmpty()) {
-			Toast.makeText(requireContext(), "Chat ID is not set!", Toast.LENGTH_SHORT).show()
+			Toast.makeText(requireContext(), R.string.id_not_set, Toast.LENGTH_SHORT).show()
 			return
 		}
 
@@ -124,16 +122,16 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 			override fun onResponse(call: Call, response: Response) {
 				requireActivity().runOnUiThread {
 					if (response.isSuccessful) {
-						Toast.makeText(requireContext(), "Success! Check Telegram Bot", Toast.LENGTH_SHORT).show()
+						Toast.makeText(requireContext(), R.string.api_check_success, Toast.LENGTH_SHORT).show()
 					} else {
-						Toast.makeText(requireContext(), "OOPS! Something went wrong", Toast.LENGTH_SHORT).show()
+						Toast.makeText(requireContext(), R.string.api_check_error, Toast.LENGTH_SHORT).show()
 					}
 				}
 			}
 
 			override fun onFailure(call: Call, e: IOException) {
 				requireActivity().runOnUiThread {
-					Toast.makeText(requireContext(), "Network error!", Toast.LENGTH_SHORT).show()
+					Toast.makeText(requireContext(), R.string.api_error, Toast.LENGTH_SHORT).show()
 				}
 			}
 		})

app/src/main/res/values/strings.xml

@@ -763,4 +763,12 @@
 	<string name="breadcrumbs_separator" translatable="false"><![CDATA[" > "]]></string>
 	<string name="access_denied_403">Access denied (403)</string>
 	<string name="max_backups_count">Max number of backups</string>
+	<string name="api_telegram_check">Check API work</string>
+	<string name="api_check_desc">Click to check the operation of the Telegram Bot API</string>
+	<string name="api_is_work">Kotatsu backup in Telegram is working!!</string>
+	<string name="api_net_error">Network error! Check your Net</string>
+	<string name="id_not_set">Chat ID is not set!</string>
+	<string name="api_check_success">Success! Check Telegram Bot</string>
+	<string name="api_check_error">OOPS! Something went wrong</string>
+	<string name="api_error">Network error!</string>
 </resources>