download’s cache renew interval configurable

app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsDownloadScreen.kt

@@ -61,6 +61,9 @@ object SettingsDownloadScreen : SearchableSettings {
                 allCategories = allCategories,
             ),
             getDownloadAheadGroup(downloadPreferences = downloadPreferences),
+            // KMK -->
+            getDownloadCacheRenewInterval(downloadPreferences = downloadPreferences),
+            // KMK <--
         )
     }
 
@@ -190,4 +193,30 @@ object SettingsDownloadScreen : SearchableSettings {
             ),
         )
     }
+
+    // KMK -->
+    @Composable
+    private fun getDownloadCacheRenewInterval(
+        downloadPreferences: DownloadPreferences,
+    ): Preference.PreferenceGroup {
+        return Preference.PreferenceGroup(
+            title = stringResource(MR.strings.download_cache_renew_interval),
+            preferenceItems = persistentListOf(
+                Preference.PreferenceItem.ListPreference(
+                    pref = downloadPreferences.downloadCacheRenewInterval(),
+                    title = stringResource(MR.strings.download_cache_renew_interval),
+                    entries = persistentMapOf(
+                        -1 to stringResource(MR.strings.download_cache_renew_interval_manual),
+                        1 to stringResource(MR.strings.download_cache_renew_interval_1hour),
+                        2 to stringResource(MR.strings.download_cache_renew_interval_2hour),
+                        6 to stringResource(MR.strings.download_cache_renew_interval_6hour),
+                        12 to stringResource(MR.strings.download_cache_renew_interval_12hour),
+                        24 to stringResource(MR.strings.download_cache_renew_interval_24hour),
+                    ),
+                ),
+                Preference.PreferenceItem.InfoPreference(stringResource(MR.strings.download_cache_renew_interval_info)),
+            ),
+        )
+    }
+    // KMK <--
 }

app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadCache.kt

@@ -45,6 +45,7 @@ import tachiyomi.core.common.util.lang.launchIO
 import tachiyomi.core.common.util.lang.launchNonCancellable
 import tachiyomi.core.common.util.system.logcat
 import tachiyomi.domain.chapter.model.Chapter
+import tachiyomi.domain.download.service.DownloadPreferences
 import tachiyomi.domain.manga.model.Manga
 import tachiyomi.domain.source.service.SourceManager
 import tachiyomi.domain.storage.service.StorageManager
@@ -69,6 +70,9 @@ class DownloadCache(
 ) {
 
     private val scope = CoroutineScope(Dispatchers.IO)
+    // KMK -->
+    private val downloadPreferences: DownloadPreferences = Injekt.get()
+    // KMK <--
 
     private val _changes: Channel<Unit> = Channel(Channel.UNLIMITED)
     val changes = _changes.receiveAsFlow()
@@ -79,7 +83,11 @@ class DownloadCache(
      * The interval after which this cache should be invalidated. 1 hour shouldn't cause major
      * issues, as the cache is only used for UI feedback.
      */
-    private val renewInterval = 1.hours.inWholeMilliseconds
+    private val renewInterval //= 1.hours.inWholeMilliseconds
+        // KMK -->
+        get() = downloadPreferences.downloadCacheRenewInterval().get()
+            .hours.inWholeMilliseconds
+        // KMK <--
 
     /**
      * The last time the cache was refreshed.
@@ -320,7 +328,7 @@ class DownloadCache(
         lastRenew = 0L
         renewalJob?.cancel()
         diskCacheFile.delete()
-        renewCache()
+        renewCache(/* KMK --> */ 0L /* KMK <-- */)
     }
 
     // KMK -->
@@ -335,9 +343,9 @@ class DownloadCache(
     /**
      * Renews the downloads cache.
      */
-    private fun renewCache() {
+    private fun renewCache(/* KMK --> */ renewInterval: Long = this.renewInterval /* KMK <-- */) {
         // Avoid renewing cache if in the process nor too often
-        if (lastRenew + renewInterval >= System.currentTimeMillis() || renewalJob?.isActive == true) {
+        if (/* KMK --> */ renewInterval < 0L || /* KMK <-- */ lastRenew + renewInterval >= System.currentTimeMillis() || renewalJob?.isActive == true) {
             return
         }
 

domain/src/main/java/tachiyomi/domain/download/service/DownloadPreferences.kt

@@ -42,4 +42,8 @@ class DownloadPreferences(
         "download_new_categories_exclude",
         emptySet(),
     )
+
+    // KMK -->
+    fun downloadCacheRenewInterval() = preferenceStore.getInt("download_cache_renew_interval", 1)
+    // KMK <--
 }

i18n/src/commonMain/resources/MR/base/strings.xml

@@ -489,6 +489,14 @@
     <string name="save_chapter_as_cbz">Save as CBZ archive</string>
     <string name="split_tall_images">Split tall images</string>
     <string name="split_tall_images_summary">Improves reader performance</string>
+    <string name="download_cache_renew_interval">Download cache renew interval</string>
+    <string name="download_cache_renew_interval_manual">Manual</string>
+    <string name="download_cache_renew_interval_1hour">1 hour</string>
+    <string name="download_cache_renew_interval_2hour">2 hours</string>
+    <string name="download_cache_renew_interval_6hour">6 hours</string>
+    <string name="download_cache_renew_interval_12hour">12 hours</string>
+    <string name="download_cache_renew_interval_24hour">1 day</string>
+    <string name="download_cache_renew_interval_info">If set to "manual", either refresh each manga or using the "Invalidate downloads index" action in "Advanced"</string>
 
     <!-- Tracking section -->
     <string name="tracking_guide">Tracking guide</string>