From e51b2a7b3a8236c992d2dbc623e486eaf835fd4d Mon Sep 17 00:00:00 2001
From: Pavka <pavel-mosein@yandex.ru>
Date: Sun, 30 Aug 2020 21:14:17 +0300
Subject: [PATCH] Fix henchan.pro single chapters mangas (#4258)

Co-authored-by: pavkazzz <me@pavkazzz.ru>
---
 src/ru/henchan/build.gradle                   |  2 +-
 .../tachiyomi/extension/ru/henchan/Henchan.kt | 22 +++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/ru/henchan/build.gradle b/src/ru/henchan/build.gradle
index 1afa97e94..51bfb7da0 100644
--- a/src/ru/henchan/build.gradle
+++ b/src/ru/henchan/build.gradle
@@ -5,7 +5,7 @@ ext {
     extName = 'Henchan'
     pkgNameSuffix = 'ru.henchan'
     extClass = '.Henchan'
-    extVersionCode = 17
+    extVersionCode = 18
     libVersion = '1.2'
     containsNsfw = true
 }
diff --git a/src/ru/henchan/src/eu/kanade/tachiyomi/extension/ru/henchan/Henchan.kt b/src/ru/henchan/src/eu/kanade/tachiyomi/extension/ru/henchan/Henchan.kt
index 31e2ceca1..6f9947dc8 100644
--- a/src/ru/henchan/src/eu/kanade/tachiyomi/extension/ru/henchan/Henchan.kt
+++ b/src/ru/henchan/src/eu/kanade/tachiyomi/extension/ru/henchan/Henchan.kt
@@ -10,6 +10,7 @@ import com.google.gson.JsonObject
 import eu.kanade.tachiyomi.annotations.Nsfw
 import eu.kanade.tachiyomi.lib.ratelimit.RateLimitInterceptor
 import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservable
 import eu.kanade.tachiyomi.source.model.Filter
 import eu.kanade.tachiyomi.source.model.FilterList
 import eu.kanade.tachiyomi.source.model.Page
@@ -27,6 +28,7 @@ import okhttp3.Request
 import okhttp3.Response
 import org.jsoup.nodes.Document
 import org.jsoup.nodes.Element
+import rx.Observable
 
 @Nsfw
 class Henchan : ParsedHttpSource() {
@@ -140,6 +142,26 @@ class Henchan : ParsedHttpSource() {
         return manga
     }
 
+    override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
+        return client.newCall(chapterListRequest(manga))
+            .asObservable().doOnNext { response ->
+                if (!response.isSuccessful) {
+                    response.close()
+                    // Error message for exceeding last page
+                    if (response.code() == 404)
+                        Observable.just(listOf(SChapter.create().apply {
+                            url = manga.url
+                            name = "Chapter"
+                            chapter_number = 1f
+                        }))
+                    else throw Exception("HTTP error ${response.code()}")
+                }
+            }
+            .map { response ->
+                chapterListParse(response)
+            }
+    }
+
     override fun chapterListRequest(manga: SManga): Request {
         val url = baseUrl + if (manga.thumbnail_url?.endsWith("#") == true) {
             manga.url