Fix periodical backups

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

@@ -1,11 +1,11 @@
 package org.koitharu.kotatsu.core.backup
 
 import android.net.Uri
-import java.time.LocalDateTime
+import java.util.Date
 
 data class BackupFile(
 	val uri: Uri,
-	val dateTime: LocalDateTime,
+	val dateTime: Date,
 ): Comparable<BackupFile> {
 
 	override fun compareTo(other: BackupFile): Int = compareValues(dateTime, other.dateTime)

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

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.core.backup
 
+import android.annotation.SuppressLint
 import android.content.Context
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
@@ -8,9 +9,9 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.zip.ZipOutput
 import java.io.File
-import java.time.LocalDateTime
+import java.text.SimpleDateFormat
-import java.time.format.DateTimeFormatter
 import java.time.format.DateTimeParseException
+import java.util.Date
 import java.util.Locale
 import java.util.zip.Deflater
 
@@ -33,17 +34,18 @@ class BackupZipOutput(val file: File) : Closeable {
 	companion object {
 
 		const val DIR_BACKUPS = "backups"
-		private val dateTimeFormat = DateTimeFormatter.ofPattern("yyyyMMdd-HHmm")
+		@SuppressLint("SimpleDateFormat")
+		private val dateTimeFormat = SimpleDateFormat("yyyyMMdd-HHmm")
 
 		fun generateFileName(context: Context) = buildString {
 			append(context.getString(R.string.app_name).replace(' ', '_').lowercase(Locale.ROOT))
 			append('_')
-			append(LocalDateTime.now().format(dateTimeFormat))
+			append(dateTimeFormat.format(Date()))
 			append(".bk.zip")
 		}
 
-		fun parseBackupDateTime(fileName: String): LocalDateTime? = try {
+		fun parseBackupDateTime(fileName: String): Date? = try {
-			LocalDateTime.parse(fileName.substringAfterLast('_').substringBefore('.'), dateTimeFormat)
+			dateTimeFormat.parse(fileName.substringAfterLast('_').substringBefore('.'))
 		} catch (e: DateTimeParseException) {
 			e.printStackTraceDebug()
 			null

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

@@ -7,8 +7,6 @@ import org.koitharu.kotatsu.core.backup.BackupZipOutput
 import org.koitharu.kotatsu.core.backup.ExternalBackupStorage
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.CoroutineIntentService
-import java.time.LocalDateTime
-import java.time.temporal.ChronoUnit
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -28,9 +26,7 @@ class PeriodicalBackupService : CoroutineIntentService() {
 			return
 		}
 		val lastBackupDate = externalBackupStorage.getLastBackupDate()
-		if (lastBackupDate != null && lastBackupDate.plus(settings.periodicalBackupFrequency, ChronoUnit.MILLIS)
+		if (lastBackupDate != null && lastBackupDate.time + settings.periodicalBackupFrequency > System.currentTimeMillis()) {
-				.isAfter(LocalDateTime.now())
-		) {
 			return
 		}
 		val output = BackupZipOutput.createTemp(applicationContext)

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

@@ -22,8 +22,7 @@ import org.koitharu.kotatsu.core.util.ext.resolveFile
 import org.koitharu.kotatsu.core.util.ext.tryLaunch
 import org.koitharu.kotatsu.core.util.ext.viewLifecycleScope
 import java.io.File
-import java.time.format.DateTimeFormatter
+import java.text.SimpleDateFormat
-import java.time.format.FormatStyle
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -83,8 +82,8 @@ class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodi
 				backupStorage.getLastBackupDate()
 			}
 			preference.summary = lastDate?.let {
-				val formatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG)
+				val formatter = SimpleDateFormat.getDateInstance(SimpleDateFormat.LONG)
-				preference.context.getString(R.string.last_successful_backup, it.format(formatter))
+				preference.context.getString(R.string.last_successful_backup, formatter.format(it))
 			}
 			preference.isVisible = lastDate != null
 		}