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Update Manga in Expected Period (#5734)
* Add Predict Interval Test * Get mangas next update and interval in library update * Get next update and interval in backup restore * Display and set intervals, nextUpdate in Manga Info * Move logic function to MangeScreen and InfoHeader Update per suggestion --------- Co-authored-by: arkon <arkon@users.noreply.github.com>
This commit is contained in:
Quang Kieu
arkon
@@ -13,111 +13,115 @@ import kotlin.math.absoluteValue
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const val MAX_GRACE_PERIOD = 28
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fun updateIntervalMeta(
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manga: Manga,
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chapters: List<Chapter>,
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zonedDateTime: ZonedDateTime = ZonedDateTime.now(),
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setCurrentFetchRange: Pair<Long, Long> = getCurrentFetchRange(zonedDateTime),
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): MangaUpdate? {
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val currentFetchRange = if (setCurrentFetchRange.first == 0L && setCurrentFetchRange.second == 0L) {
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getCurrentFetchRange(ZonedDateTime.now())
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} else {
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setCurrentFetchRange
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}
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val interval = manga.calculateInterval.takeIf { it < 0 } ?: calculateInterval(chapters, zonedDateTime)
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val nextUpdate = calculateNextUpdate(manga, interval, zonedDateTime, currentFetchRange)
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class SetMangaUpdateInterval(
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private val libraryPreferences: LibraryPreferences = Injekt.get(),
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) {
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return if (manga.nextUpdate == nextUpdate && manga.calculateInterval == interval) {
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null
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} else { MangaUpdate(id = manga.id, nextUpdate = nextUpdate, calculateInterval = interval) }
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}
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fun calculateInterval(chapters: List<Chapter>, zonedDateTime: ZonedDateTime): Int {
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val sortedChapters = chapters
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.sortedWith(compareByDescending<Chapter> { it.dateUpload }.thenByDescending { it.dateFetch })
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.take(50)
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val uploadDates = sortedChapters
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.filter { it.dateUpload > 0L }
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.map {
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ZonedDateTime.ofInstant(Instant.ofEpochMilli(it.dateUpload), zonedDateTime.zone)
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.toLocalDate()
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.atStartOfDay()
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fun updateInterval(
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manga: Manga,
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chapters: List<Chapter>,
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zonedDateTime: ZonedDateTime,
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fetchRange: Pair<Long, Long>,
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): MangaUpdate? {
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val currentFetchRange = if (fetchRange.first == 0L && fetchRange.second == 0L) {
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getCurrentFetchRange(ZonedDateTime.now())
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} else {
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fetchRange
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}
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.distinct()
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val fetchDates = sortedChapters
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.map {
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ZonedDateTime.ofInstant(Instant.ofEpochMilli(it.dateFetch), zonedDateTime.zone)
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.toLocalDate()
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.atStartOfDay()
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val interval = manga.calculateInterval.takeIf { it < 0 } ?: calculateInterval(chapters, zonedDateTime)
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val nextUpdate = calculateNextUpdate(manga, interval, zonedDateTime, currentFetchRange)
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return if (manga.nextUpdate == nextUpdate && manga.calculateInterval == interval) {
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null
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} else {
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MangaUpdate(id = manga.id, nextUpdate = nextUpdate, calculateInterval = interval)
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}
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.distinct()
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}
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val newInterval = when {
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// Enough upload date from source
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uploadDates.size >= 3 -> {
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val uploadDelta = uploadDates.last().until(uploadDates.first(), ChronoUnit.DAYS)
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val uploadPeriod = uploadDates.indexOf(uploadDates.last())
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uploadDelta.floorDiv(uploadPeriod).toInt()
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fun getCurrentFetchRange(timeToCal: ZonedDateTime): Pair<Long, Long> {
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// lead range and the following range depend on if updateOnlyExpectedPeriod set.
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var followRange = 0
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var leadRange = 0
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if (LibraryPreferences.MANGA_OUTSIDE_RELEASE_PERIOD in libraryPreferences.libraryUpdateMangaRestriction().get()) {
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followRange = libraryPreferences.followingExpectedDays().get()
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leadRange = libraryPreferences.leadingExpectedDays().get()
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}
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// Enough fetch date from client
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fetchDates.size >= 3 -> {
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val fetchDelta = fetchDates.last().until(fetchDates.first(), ChronoUnit.DAYS)
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val uploadPeriod = fetchDates.indexOf(fetchDates.last())
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fetchDelta.floorDiv(uploadPeriod).toInt()
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val startToday = timeToCal.toLocalDate().atStartOfDay(timeToCal.zone)
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// revert math of (next_update + follow < now) become (next_update < now - follow)
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// so (now - follow) become lower limit
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val lowerRange = startToday.minusDays(followRange.toLong())
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val higherRange = startToday.plusDays(leadRange.toLong())
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return Pair(lowerRange.toEpochSecond() * 1000, higherRange.toEpochSecond() * 1000 - 1)
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}
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internal fun calculateInterval(chapters: List<Chapter>, zonedDateTime: ZonedDateTime): Int {
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val sortedChapters = chapters
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.sortedWith(compareByDescending<Chapter> { it.dateUpload }.thenByDescending { it.dateFetch })
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.take(50)
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val uploadDates = sortedChapters
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.filter { it.dateUpload > 0L }
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.map {
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ZonedDateTime.ofInstant(Instant.ofEpochMilli(it.dateUpload), zonedDateTime.zone)
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.toLocalDate()
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.atStartOfDay()
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}
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.distinct()
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val fetchDates = sortedChapters
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.map {
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ZonedDateTime.ofInstant(Instant.ofEpochMilli(it.dateFetch), zonedDateTime.zone)
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.toLocalDate()
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.atStartOfDay()
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}
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.distinct()
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val interval = when {
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// Enough upload date from source
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uploadDates.size >= 3 -> {
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val uploadDelta = uploadDates.last().until(uploadDates.first(), ChronoUnit.DAYS)
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val uploadPeriod = uploadDates.indexOf(uploadDates.last())
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uploadDelta.floorDiv(uploadPeriod).toInt()
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}
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// Enough fetch date from client
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fetchDates.size >= 3 -> {
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val fetchDelta = fetchDates.last().until(fetchDates.first(), ChronoUnit.DAYS)
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val uploadPeriod = fetchDates.indexOf(fetchDates.last())
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fetchDelta.floorDiv(uploadPeriod).toInt()
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}
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// Default to 7 days
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else -> 7
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}
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// Default to 7 days
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else -> 7
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// Min 1, max 28 days
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return interval.coerceIn(1, MAX_GRACE_PERIOD)
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}
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// Min 1, max 28 days
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return newInterval.coerceIn(1, MAX_GRACE_PERIOD)
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}
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private fun calculateNextUpdate(
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manga: Manga,
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interval: Int,
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zonedDateTime: ZonedDateTime,
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currentFetchRange: Pair<Long, Long>,
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): Long {
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return if (manga.nextUpdate !in currentFetchRange.first.rangeTo(currentFetchRange.second + 1) ||
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manga.calculateInterval == 0
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) {
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val latestDate = ZonedDateTime.ofInstant(Instant.ofEpochMilli(manga.lastUpdate), zonedDateTime.zone).toLocalDate().atStartOfDay()
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val timeSinceLatest = ChronoUnit.DAYS.between(latestDate, zonedDateTime).toInt()
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val cycle = timeSinceLatest.floorDiv(interval.absoluteValue.takeIf { interval < 0 } ?: doubleInterval(interval, timeSinceLatest, doubleWhenOver = 10, maxValue = 28))
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latestDate.plusDays((cycle + 1) * interval.toLong()).toEpochSecond(zonedDateTime.offset) * 1000
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} else {
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manga.nextUpdate
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private fun calculateNextUpdate(
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manga: Manga,
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interval: Int,
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zonedDateTime: ZonedDateTime,
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fetchRange: Pair<Long, Long>,
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): Long {
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return if (
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manga.nextUpdate !in fetchRange.first.rangeTo(fetchRange.second + 1) ||
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manga.calculateInterval == 0
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) {
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val latestDate = ZonedDateTime.ofInstant(Instant.ofEpochMilli(manga.lastUpdate), zonedDateTime.zone).toLocalDate().atStartOfDay()
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val timeSinceLatest = ChronoUnit.DAYS.between(latestDate, zonedDateTime).toInt()
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val cycle = timeSinceLatest.floorDiv(interval.absoluteValue.takeIf { interval < 0 } ?: doubleInterval(interval, timeSinceLatest, doubleWhenOver = 10, maxValue = 28))
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latestDate.plusDays((cycle + 1) * interval.toLong()).toEpochSecond(zonedDateTime.offset) * 1000
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} else {
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manga.nextUpdate
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}
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}
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private fun doubleInterval(delta: Int, timeSinceLatest: Int, doubleWhenOver: Int, maxValue: Int): Int {
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if (delta >= maxValue) return maxValue
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val cycle = timeSinceLatest.floorDiv(delta) + 1
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// double delta again if missed more than 9 check in new delta
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return if (cycle > doubleWhenOver) {
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doubleInterval(delta * 2, timeSinceLatest, doubleWhenOver, maxValue)
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} else {
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delta
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}
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}
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}
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private fun doubleInterval(delta: Int, timeSinceLatest: Int, doubleWhenOver: Int, maxValue: Int): Int {
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if (delta >= maxValue) return maxValue
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val cycle = timeSinceLatest.floorDiv(delta) + 1
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// double delta again if missed more than 9 check in new delta
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return if (cycle > doubleWhenOver) {
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doubleInterval(delta * 2, timeSinceLatest, doubleWhenOver, maxValue)
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} else {
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delta
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}
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}
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fun getCurrentFetchRange(
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timeToCal: ZonedDateTime,
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): Pair<Long, Long> {
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val preferences: LibraryPreferences = Injekt.get()
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// lead range and the following range depend on if updateOnlyExpectedPeriod set.
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var followRange = 0
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var leadRange = 0
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if (LibraryPreferences.MANGA_OUTSIDE_RELEASE_PERIOD in preferences.libraryUpdateMangaRestriction().get()) {
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followRange = preferences.followingExpectedDays().get()
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leadRange = preferences.leadingExpectedDays().get()
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}
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val startToday = timeToCal.toLocalDate().atStartOfDay(timeToCal.zone)
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// revert math of (next_update + follow < now) become (next_update < now - follow)
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// so (now - follow) become lower limit
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val lowerRange = startToday.minusDays(followRange.toLong())
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val higherRange = startToday.plusDays(leadRange.toLong())
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return Pair(lowerRange.toEpochSecond() * 1000, higherRange.toEpochSecond() * 1000 - 1)
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}
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