Fix Mangalib pages loading

app/src/main/java/org/koitharu/kotatsu/core/parser/LocalMangaRepository.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.core.parser
 import android.annotation.SuppressLint
 import android.content.Context
 import android.net.Uri
+import androidx.collection.ArraySet
 import androidx.core.net.toFile
 import androidx.core.net.toUri
 import org.koin.core.KoinComponent
@@ -97,7 +98,7 @@ class LocalMangaRepository : MangaRepository, KoinComponent {
 		}
 		// fallback
 		val title = file.nameWithoutExtension.replace("_", " ").capitalize()
-		val chapters = HashSet<String>()
+		val chapters = ArraySet<String>()
 		for (x in zip.entries()) {
 			if (!x.isDirectory) {
 				chapters += x.name.substringBeforeLast(File.separatorChar, "")

app/src/main/java/org/koitharu/kotatsu/domain/favourites/FavouritesRepository.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.domain.favourites
 
+import androidx.collection.ArraySet
 import androidx.room.withTransaction
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -12,7 +13,6 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.model.Manga
-import java.util.*
 
 class FavouritesRepository : KoinComponent {
 
@@ -98,7 +98,7 @@ class FavouritesRepository : KoinComponent {
 
 	companion object {
 
-		private val listeners = HashSet<OnFavouritesChangeListener>()
+		private val listeners = ArraySet<OnFavouritesChangeListener>()
 
 		fun subscribe(listener: OnFavouritesChangeListener) {
 			listeners += listener

app/src/main/java/org/koitharu/kotatsu/domain/history/HistoryRepository.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.domain.history
 
+import androidx.collection.ArraySet
 import androidx.room.withTransaction
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -71,7 +72,7 @@ class HistoryRepository : KoinComponent {
 
 	companion object {
 
-		private val listeners = HashSet<OnHistoryChangeListener>()
+		private val listeners = ArraySet<OnHistoryChangeListener>()
 
 		fun subscribe(listener: OnHistoryChangeListener) {
 			listeners += listener

app/src/main/java/org/koitharu/kotatsu/ui/reader/PageLoader.kt

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.ui.reader
 
 import android.net.Uri
+import android.util.ArrayMap
 import kotlinx.coroutines.*
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -16,7 +17,7 @@ import kotlin.coroutines.CoroutineContext
 class PageLoader : KoinComponent, CoroutineScope, DisposableHandle {
 
 	private val job = SupervisorJob()
-	private val tasks = HashMap<String, Deferred<File>>()
+	private val tasks = ArrayMap<String, Deferred<File>>()
 	private val okHttp by inject<OkHttpClient>()
 	private val cache by inject<PagesCache>()
 
@@ -48,16 +49,17 @@ class PageLoader : KoinComponent, CoroutineScope, DisposableHandle {
 			val request = Request.Builder()
 				.url(url)
 				.get()
+				.header("Accept", "image/webp,image/png;q=0.9,image/jpeg,*/*;q=0.8")
 				.cacheControl(CacheUtils.CONTROL_DISABLED)
 				.build()
 			okHttp.newCall(request).await().use { response ->
 				val body = response.body
-				checkNotNull(body) {
-					"Null response"
-				}
 				check(response.isSuccessful) {
 					"Invalid response: ${response.code} ${response.message}"
 				}
+				checkNotNull(body) {
+					"Null response"
+				}
 				cache.put(url) { out ->
 					body.byteStream().copyTo(out)
 				}