fix(id/minioppai): Migrate to Animestream + add search filters (#1778)

multisrc/overrides/animestream/minioppai/src/extractors/MiniOppaiExtractor.kt

@@ -0,0 +1,51 @@
+package eu.kanade.tachiyomi.animeextension.id.minioppai.extractors
+
+import eu.kanade.tachiyomi.animesource.model.Track
+import eu.kanade.tachiyomi.animesource.model.Video
+import eu.kanade.tachiyomi.lib.unpacker.Unpacker
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.util.asJsoup
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+
+class MiniOppaiExtractor(private val client: OkHttpClient) {
+    fun videosFromUrl(url: String, headers: Headers): List<Video> {
+        val playerDoc = client.newCall(GET(url, headers)).execute().asJsoup()
+        val scriptData = playerDoc.selectFirst("script:containsData(eval):containsData(p,a,c,k,e,d)")
+            ?.data()
+            ?.let(Unpacker::unpack)
+            ?.takeIf(String::isNotBlank)
+            ?: return emptyList()
+
+        val baseUrl = "https://" + url.substringAfter("//").substringBefore("/")
+
+        val subs = scriptData.getItems("\"tracks\"", baseUrl) { subUrl, label ->
+            Track(subUrl, label)
+        }
+
+        return scriptData.getItems("sources", baseUrl) { videoUrl, quality ->
+            val videoQuality = "MiniOppai - $quality"
+            Video(videoUrl, videoQuality, videoUrl, headers, subtitleTracks = subs)
+        }
+    }
+
+    // time to over-engineer things for no reason at all
+    private fun <T> String.getItems(key: String, baseUrl: String, transformer: (String, String) -> T): List<T> {
+        return substringAfter("$key:[").substringBefore("]")
+            .split("{")
+            .drop(1)
+            .map {
+                val url = "$baseUrl${it.extractKey("file")}"
+                val label = it.extractKey("label")
+                transformer(url, label)
+            }
+    }
+
+    private fun String.extractKey(key: String) =
+        substringAfter(key)
+            .substringBefore("}")
+            .substringBefore(",")
+            .substringAfter(":")
+            .trim('"')
+            .trim('\'')
+}