From 3e77df20a2c070b7ba7b11607cc0435d43401c50 Mon Sep 17 00:00:00 2001
From: Koitharu <nvasya95@gmail.com>
Date: Sun, 26 Nov 2023 09:07:39 +0200
Subject: [PATCH] Improve manga memory cache usage

---
 .../kotatsu/core/parser/MangaLinkResolver.kt       |  3 ++-
 .../kotatsu/core/parser/RemoteMangaRepository.kt   | 14 ++++++++------
 .../org/koitharu/kotatsu/tracker/domain/Tracker.kt |  8 ++++++--
 3 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaLinkResolver.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaLinkResolver.kt
index d0b1efe1a..483776ef6 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaLinkResolver.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaLinkResolver.kt
@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.parser
 
 import android.net.Uri
+import coil.request.CachePolicy
 import dagger.Reusable
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.util.ext.ifNullOrEmpty
@@ -85,7 +86,7 @@ class MangaLinkResolver @Inject constructor(
 
 	private suspend fun MangaRepository.getDetailsNoCache(manga: Manga): Manga {
 		return if (this is RemoteMangaRepository) {
-			getDetails(manga, withCache = false)
+			getDetails(manga, CachePolicy.READ_ONLY)
 		} else {
 			getDetails(manga)
 		}
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/RemoteMangaRepository.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/RemoteMangaRepository.kt
index 18ab51fb7..273631348 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/RemoteMangaRepository.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/parser/RemoteMangaRepository.kt
@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.parser
 
 import android.util.Log
+import coil.request.CachePolicy
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -82,7 +83,7 @@ class RemoteMangaRepository(
 		}
 	}
 
-	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, withCache = true)
+	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, CachePolicy.ENABLED)
 
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
 		cache.getPages(source, chapter.url)?.let { return it }
@@ -116,17 +117,18 @@ class RemoteMangaRepository(
 		return related.await()
 	}
 
-	suspend fun getDetails(manga: Manga, withCache: Boolean): Manga {
-		if (!withCache) {
-			return parser.getDetails(manga)
+	suspend fun getDetails(manga: Manga, cachePolicy: CachePolicy): Manga {
+		if (cachePolicy.readEnabled) {
+			cache.getDetails(source, manga.url)?.let { return it }
 		}
-		cache.getDetails(source, manga.url)?.let { return it }
 		val details = asyncSafe {
 			mirrorSwitchInterceptor.withMirrorSwitching {
 				parser.getDetails(manga)
 			}
 		}
-		cache.putDetails(source, manga.url, details)
+		if (cachePolicy.writeEnabled) {
+			cache.putDetails(source, manga.url, details)
+		}
 		return details.await()
 	}
 
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/Tracker.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/Tracker.kt
index 73dc18841..2c004ca9d 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/Tracker.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/Tracker.kt
@@ -1,8 +1,10 @@
 package org.koitharu.kotatsu.tracker.domain
 
 import androidx.annotation.VisibleForTesting
+import coil.request.CachePolicy
 import org.koitharu.kotatsu.core.model.getPreferredBranch
 import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -76,7 +78,9 @@ class Tracker @Inject constructor(
 	}
 
 	suspend fun fetchUpdates(track: MangaTracking, commit: Boolean): MangaUpdates.Success {
-		val manga = mangaRepositoryFactory.create(track.manga.source).getDetails(track.manga)
+		val repo = mangaRepositoryFactory.create(track.manga.source)
+		require(repo is RemoteMangaRepository) { "Repository ${repo.javaClass.simpleName} is not supported" }
+		val manga = repo.getDetails(track.manga, CachePolicy.WRITE_ONLY)
 		val updates = compare(track, manga, getBranch(manga))
 		if (commit) {
 			repository.saveUpdates(updates)
@@ -120,7 +124,7 @@ class Tracker @Inject constructor(
 					manga = manga,
 					newChapters = emptyList(),
 					isValid = chapters.lastOrNull()?.id == track.lastChapterId,
-					channelId = null
+					channelId = null,
 				)
 			}