Fix mangakatana Image array not found (#13194)

Mangakatana updated their javascript again and
is using the ytaw variable again as the array of images.
To make sure mangakatana keeps working even if the website changes back
and forth we check both variables and choose the array that is most
likely the one with all of the pages.

Closes #13188

src/en/mangakatana/build.gradle

@@ -5,7 +5,7 @@ ext {
     extName = 'MangaKatana'
     pkgNameSuffix = 'en.mangakatana'
     extClass = '.MangaKatana'
-    extVersionCode = 7
+    extVersionCode = 8
 }
 
 apply from: "$rootDir/common.gradle"

src/en/mangakatana/src/eu/kanade/tachiyomi/extension/en/mangakatana/MangaKatana.kt

@@ -179,7 +179,8 @@ class MangaKatana : ConfigurableSource, ParsedHttpSource() {
         date_upload = dateFormat.parse(element.select(".update_time").text())?.time ?: 0
     }
 
-    private val imageArrayRegex = Regex("""var htnc=\[([^\[]*)]""")
+    private val imageArrayYtawRegex = Regex("""var ytaw=\[([^\[]*)]""")
+    private val imageArrayHtncRegex = Regex("""var htnc=\[([^\[]*)]""")
     private val imageUrlRegex = Regex("""'([^']*)'""")
 
     // Page List
@@ -190,12 +191,28 @@ class MangaKatana : ConfigurableSource, ParsedHttpSource() {
     }
 
     override fun pageListParse(document: Document): List<Page> {
-        val imageArray = document.select("script:containsData(var htnc)").firstOrNull()?.data()
+        val imageArrayYtaw = document.select("script:containsData(var ytaw)").firstOrNull()?.data()
-            ?.let { imageArrayRegex.find(it)?.groupValues?.get(1) }
+            ?.let { imageArrayYtawRegex.find(it)?.groupValues?.get(1) }
-            ?: throw Exception("Image array not found")
+        val imageArrayHtnc = document.select("script:containsData(var htnc)").firstOrNull()?.data()
-        return imageUrlRegex.findAll(imageArray).asIterable().mapIndexed { i, mr ->
+            ?.let { imageArrayHtncRegex.find(it)?.groupValues?.get(1) }
+
+        val pagesYtaw =
+            imageArrayYtaw?.let {
+                imageUrlRegex.findAll(it).asIterable().mapIndexed { i, mr ->
                     Page(i, "", mr.groupValues[1])
                 }
+            } ?: emptyList()
+        val pagesHtnc =
+            imageArrayHtnc?.let {
+                imageUrlRegex.findAll(it).asIterable().mapIndexed { i, mr ->
+                    Page(i, "", mr.groupValues[1])
+                }
+            } ?: emptyList()
+
+        return if (pagesYtaw.size >= pagesHtnc.size)
+            pagesYtaw
+        else
+            pagesHtnc
     }
 
     override fun imageUrlParse(document: Document): String = throw UnsupportedOperationException("Not Used")