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>

app/src/main/java/eu/kanade/domain/chapter/interactor/SyncChaptersWithSource.kt

@@ -23,6 +23,7 @@ import tachiyomi.source.local.isLocal
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.lang.Long.max
+import java.time.ZonedDateTime
 import java.util.Date
 import java.util.TreeSet
 
@@ -48,6 +49,9 @@ class SyncChaptersWithSource(
         rawSourceChapters: List<SChapter>,
         manga: Manga,
         source: Source,
+        manualFetch: Boolean = false,
+        zoneDateTime: ZonedDateTime = ZonedDateTime.now(),
+        fetchRange: Pair<Long, Long> = Pair(0, 0),
     ): List<Chapter> {
         if (rawSourceChapters.isEmpty() && !source.isLocal()) {
             throw NoChaptersException()
@@ -134,6 +138,14 @@ class SyncChaptersWithSource(
 
         // Return if there's nothing to add, delete or change, avoiding unnecessary db transactions.
         if (toAdd.isEmpty() && toDelete.isEmpty() && toChange.isEmpty()) {
+            if (manualFetch || manga.calculateInterval == 0 || manga.nextUpdate < fetchRange.first) {
+                updateManga.awaitUpdateFetchInterval(
+                    manga,
+                    dbChapters,
+                    zoneDateTime,
+                    fetchRange,
+                )
+            }
             return emptyList()
         }
 
@@ -188,6 +200,8 @@ class SyncChaptersWithSource(
             val chapterUpdates = toChange.map { it.toChapterUpdate() }
             updateChapter.awaitAll(chapterUpdates)
         }
+        val newChapters = chapterRepository.getChapterByMangaId(manga.id)
+        updateManga.awaitUpdateFetchInterval(manga, newChapters, zoneDateTime, fetchRange)
 
         // Set this manga as updated since chapters were changed
         // Note that last_update actually represents last time the chapter list changed at all