feat(lib): Convert StreamWish extractor to a shared lib (#2067)

lib/streamwish-extractor/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+    id("com.android.library")
+    kotlin("android")
+}
+
+android {
+    compileSdk = AndroidConfig.compileSdk
+    namespace = "eu.kanade.tachiyomi.lib.streamwishextractor"
+
+    defaultConfig {
+        minSdk = AndroidConfig.minSdk
+    }
+}
+
+dependencies {
+    implementation("dev.datlag.jsunpacker:jsunpacker:1.0.1") {
+        exclude(group = "org.jetbrains.kotlin", module = "kotlin-stdlib-jdk8")
+    }
+    implementation(project(":lib-playlist-utils"))
+    compileOnly(libs.bundles.common)
+}

lib/streamwish-extractor/src/main/java/eu/kanade/tachiyomi/lib/streamwishextractor/StreamWishExtractor.kt

@@ -0,0 +1,36 @@
+package eu.kanade.tachiyomi.lib.streamwishextractor
+
+import dev.datlag.jsunpacker.JsUnpacker
+import eu.kanade.tachiyomi.animesource.model.Video
+import eu.kanade.tachiyomi.lib.playlistutils.PlaylistUtils
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.util.asJsoup
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+
+class StreamWishExtractor(private val client: OkHttpClient, private val headers: Headers) {
+    private val playlistUtils by lazy { PlaylistUtils(client, headers) }
+
+    fun videosFromUrl(url: String, prefix: String) = videosFromUrl(url) { "$prefix - $it" }
+
+    fun videosFromUrl(url: String, videoNameGen: (String) -> String = { quality -> "StreamWish - $quality" }): List<Video> {
+        val doc = client.newCall(GET(url, headers)).execute()
+            .use { it.asJsoup() }
+        // Sometimes the script body is packed, sometimes it isn't
+        val scriptBody = doc.selectFirst("script:containsData(m3u8)")?.data()
+            ?.let { script ->
+                if (script.contains("eval(function(p,a,c")) {
+                    JsUnpacker.unpackAndCombine(script)
+                } else script
+            }
+
+        val masterUrl = scriptBody
+            ?.substringAfter("source", "")
+            ?.substringAfter("file:\"", "")
+            ?.substringBefore("\"", "")
+            ?.takeIf(String::isNotBlank)
+            ?: return emptyList()
+
+        return playlistUtils.extractFromHls(masterUrl, url, videoNameGen = videoNameGen)
+    }
+}