Izneo: fix missing chapters (#10711)

src/all/izneo/build.gradle

@@ -6,7 +6,7 @@ ext {
     extName = 'izneo (webtoons)'
     pkgNameSuffix = 'all.izneo'
     extClass = '.IzneoFactory'
-    extVersionCode = 2
+    extVersionCode = 3
 }
 
 apply from: "$rootDir/common.gradle"

src/all/izneo/src/eu/kanade/tachiyomi/extension/all/izneo/Izneo.kt

@@ -21,6 +21,7 @@ import kotlinx.serialization.json.jsonArray
 import kotlinx.serialization.json.jsonObject
 import kotlinx.serialization.json.jsonPrimitive
 import okhttp3.Response
+import rx.Observable
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.text.SimpleDateFormat
@@ -77,9 +78,6 @@ class Izneo(override val lang: String) : ConfigurableSource, HttpSource() {
     override fun mangaDetailsRequest(manga: SManga) =
         GET(ORIGIN + manga.url, headers)
 
-    override fun chapterListRequest(manga: SManga) =
-        GET(manga.apiUrl + "/volumes/old/0/500", apiHeaders)
-
     override fun pageListRequest(chapter: SChapter) =
         GET(ORIGIN + "/book/" + chapter.url, apiHeaders)
 
@@ -138,7 +136,24 @@ class Izneo(override val lang: String) : ConfigurableSource, HttpSource() {
         }!!
 
     override fun fetchMangaDetails(manga: SManga) =
-        rx.Observable.just(manga.apply { initialized = true })!!
+        Observable.just(manga.apply { initialized = true })!!
+
+    override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
+        val url = "$ORIGIN/$lang/api/web/serie/" +
+            manga.url.substringAfterLast('-') + "/volumes/old"
+        val chapters = mutableListOf<SChapter>()
+        var cutoff = 0
+        var current = LIMIT
+        while (current == LIMIT) {
+            client.newCall(GET("$url/$cutoff/$LIMIT", apiHeaders))
+                .execute().run(::chapterListParse).let {
+                    cutoff += LIMIT
+                    current = it.size
+                    chapters.addAll(it)
+                }
+        }
+        return Observable.just(chapters)
+    }
 
     override fun setupPreferenceScreen(screen: PreferenceScreen) {
         EditTextPreference(screen.context).apply {
@@ -164,9 +179,6 @@ class Izneo(override val lang: String) : ConfigurableSource, HttpSource() {
         }.let(screen::addPreference)
     }
 
-    private inline val SManga.apiUrl: String
-        get() = "$ORIGIN/$lang/api/web/serie/" + url.substringAfterLast('-')
-
     private inline val Album.timestamp: Long
         get() = dateFormat.parse(publicationDate)?.time ?: 0L
 
@@ -182,6 +194,9 @@ class Izneo(override val lang: String) : ConfigurableSource, HttpSource() {
             }
         }.jsonObject
 
+    override fun chapterListRequest(manga: SManga) =
+        throw UnsupportedOperationException("Not used")
+
     override fun mangaDetailsParse(response: Response) =
         throw UnsupportedOperationException("Not used")
 
@@ -191,6 +206,8 @@ class Izneo(override val lang: String) : ConfigurableSource, HttpSource() {
     companion object {
         private const val ORIGIN = "https://izneo.com"
 
+        private const val LIMIT = 50
+
         private val dateFormat by lazy {
             SimpleDateFormat("yyyy-MM-dd", Locale.ROOT)
         }