Fix local manga size

app/src/main/java/org/koitharu/kotatsu/core/ui/uiModule.kt

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.core.ui
 
 import coil.ComponentRegistry
 import coil.ImageLoader
+import coil.util.CoilUtils
 import okhttp3.OkHttpClient
 import org.koin.android.ext.koin.androidContext
 import org.koin.dsl.module
@@ -11,8 +12,11 @@ import org.koitharu.kotatsu.local.data.CbzFetcher
 val uiModule
 	get() = module {
 		single {
+			val httpClient = get<OkHttpClient>().newBuilder()
+				.cache(CoilUtils.createDefaultCache(androidContext()))
+				.build()
 			ImageLoader.Builder(androidContext())
-				.okHttpClient(get<OkHttpClient>())
+				.okHttpClient(httpClient)
 				.componentRegistry(
 					ComponentRegistry.Builder()
 						.add(CbzFetcher())

app/src/main/java/org/koitharu/kotatsu/local/data/LocalStorageManager.kt

@@ -6,6 +6,7 @@ import android.os.StatFs
 import androidx.annotation.WorkerThread
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
+import kotlinx.coroutines.withContext
 import okhttp3.Cache
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.utils.ext.computeSize
@@ -32,7 +33,7 @@ class LocalStorageManager(
 		return Cache(directory, maxSize)
 	}
 
-	suspend fun computeCacheSize(cache: CacheDir) = runInterruptible(Dispatchers.IO) {
+	suspend fun computeCacheSize(cache: CacheDir) = withContext(Dispatchers.IO) {
 		getCacheDirs(cache.dir).sumOf { it.computeSize() }
 	}
 
@@ -86,7 +87,9 @@ class LocalStorageManager(
 	private fun getCacheDirs(subDir: String): MutableSet<File> {
 		val result = LinkedHashSet<File>()
 		result += File(context.cacheDir, subDir)
-		result += context.getExternalFilesDirs(subDir)
+		context.externalCacheDirs.mapTo(result) {
+			File(it, subDir)
+		}
 		return result
 	}
 

app/src/main/java/org/koitharu/kotatsu/settings/HistorySettingsFragment.kt

@@ -32,18 +32,8 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
-		findPreference<Preference>(AppSettings.KEY_PAGES_CACHE_CLEAR)?.let { pref ->
-			viewLifecycleScope.launchWhenResumed {
-				val size = storageManager.computeCacheSize(CacheDir.PAGES)
-				pref.summary = FileSize.BYTES.format(pref.context, size)
-			}
-		}
-		findPreference<Preference>(AppSettings.KEY_THUMBS_CACHE_CLEAR)?.let { pref ->
-			viewLifecycleScope.launchWhenResumed {
-				val size = storageManager.computeCacheSize(CacheDir.THUMBS)
-				pref.summary = FileSize.BYTES.format(pref.context, size)
-			}
-		}
+		findPreference<Preference>(AppSettings.KEY_PAGES_CACHE_CLEAR)?.bindSummaryToCacheSize(CacheDir.PAGES)
+		findPreference<Preference>(AppSettings.KEY_THUMBS_CACHE_CLEAR)?.bindSummaryToCacheSize(CacheDir.THUMBS)
 		findPreference<Preference>(AppSettings.KEY_SEARCH_HISTORY_CLEAR)?.let { pref ->
 			viewLifecycleScope.launchWhenResumed {
 				val items = searchRepository.getSearchHistoryCount()
@@ -111,6 +101,11 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 		}
 	}
 
+	private fun Preference.bindSummaryToCacheSize(dir: CacheDir) = viewLifecycleScope.launch {
+		val size = storageManager.computeCacheSize(dir)
+		summary = FileSize.BYTES.format(context, size)
+	}
+
 	private fun clearSearchHistory(preference: Preference) {
 		MaterialAlertDialogBuilder(context ?: return)
 			.setTitle(R.string.clear_search_history)

app/src/main/java/org/koitharu/kotatsu/utils/ext/FileExt.kt

@@ -7,8 +7,10 @@ import android.os.Build
 import android.os.Environment
 import android.os.storage.StorageManager
 import android.provider.OpenableColumns
+import androidx.annotation.WorkerThread
 import androidx.core.database.getStringOrNull
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.R
 import java.io.File
@@ -25,14 +27,6 @@ fun ZipFile.readText(entry: ZipEntry) = getInputStream(entry).bufferedReader().u
 	it.readText()
 }
 
-fun File.computeSize(): Long = listFiles()?.sumOf { x ->
-	if (x.isDirectory) {
-		x.computeSize()
-	} else {
-		x.length()
-	}
-} ?: 0L
-
 fun File.getStorageName(context: Context): String = runCatching {
 	val manager = context.getSystemService(Context.STORAGE_SERVICE) as StorageManager
 	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
@@ -66,4 +60,18 @@ fun ContentResolver.resolveName(uri: Uri): String? {
 		}
 	}
 	return fallback
+}
+
+suspend fun File.computeSize(): Long = runInterruptible(Dispatchers.IO) {
+	computeSizeInternal(this)
+}
+
+@WorkerThread
+private fun computeSizeInternal(file: File): Long {
+	if (file.isDirectory) {
+		val files = file.listFiles() ?: return 0L
+		return files.sumOf { computeSizeInternal(it) }
+	} else {
+		return file.length()
+	}
 }

app/src/main/res/values/strings.xml

@@ -16,6 +16,7 @@
     <string name="settings">Settings</string>
     <string name="remote_sources">Remote sources</string>
     <string name="loading_">Loading…</string>
+    <string name="computing_">Computing…</string>
     <string name="chapter_d_of_d">Chapter %1$d of %2$d</string>
     <string name="close">Close</string>
     <string name="try_again">Try again</string>

app/src/main/res/xml/pref_history.xml

@@ -6,12 +6,14 @@
 	<Preference
 		android:key="search_history_clear"
 		android:persistent="false"
+		android:summary="@string/loading_"
 		android:title="@string/clear_search_history"
 		app:iconSpaceReserved="false" />
 
 	<Preference
 		android:key="updates_feed_clear"
 		android:persistent="false"
+		android:summary="@string/loading_"
 		android:title="@string/clear_updates_feed"
 		app:iconSpaceReserved="false" />
 
@@ -27,12 +29,14 @@
 		<Preference
 			android:key="thumbs_cache_clear"
 			android:persistent="false"
+			android:summary="@string/computing_"
 			android:title="@string/clear_thumbs_cache"
 			app:iconSpaceReserved="false" />
 
 		<Preference
 			android:key="pages_cache_clear"
 			android:persistent="false"
+			android:summary="@string/computing_"
 			android:title="@string/clear_pages_cache"
 			app:iconSpaceReserved="false" />