From 1ce0625a432b271566cb21d0f0a6e6d82df3ca31 Mon Sep 17 00:00:00 2001
From: Tim Schneeberger <tim.schneeberger@outlook.de>
Date: Mon, 14 Nov 2022 00:27:59 +0100
Subject: [PATCH] feat(twitch): `block-audio-ads` patch (#1041)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>
---
 .../annotations/AudioAdsCompatibility.kt      | 10 ++++++
 .../AudioAdsPresenterPlayFingerprint.kt       | 16 ++++++++++
 .../twitch/ad/audio/patch/AudioAdsPatch.kt    | 31 +++++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 src/main/kotlin/app/revanced/patches/twitch/ad/audio/annotations/AudioAdsCompatibility.kt
 create mode 100644 src/main/kotlin/app/revanced/patches/twitch/ad/audio/fingerprints/AudioAdsPresenterPlayFingerprint.kt
 create mode 100644 src/main/kotlin/app/revanced/patches/twitch/ad/audio/patch/AudioAdsPatch.kt

diff --git a/src/main/kotlin/app/revanced/patches/twitch/ad/audio/annotations/AudioAdsCompatibility.kt b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/annotations/AudioAdsCompatibility.kt
new file mode 100644
index 000000000..0e39cb8d3
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/annotations/AudioAdsCompatibility.kt
@@ -0,0 +1,10 @@
+package app.revanced.patches.twitch.ad.audio.annotations
+
+import app.revanced.patcher.annotation.Compatibility
+import app.revanced.patcher.annotation.Package
+
+@Compatibility([Package("tv.twitch.android.app")])
+@Target(AnnotationTarget.CLASS)
+@Retention(AnnotationRetention.RUNTIME)
+internal annotation class AudioAdsCompatibility
+
diff --git a/src/main/kotlin/app/revanced/patches/twitch/ad/audio/fingerprints/AudioAdsPresenterPlayFingerprint.kt b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/fingerprints/AudioAdsPresenterPlayFingerprint.kt
new file mode 100644
index 000000000..1cd867f42
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/fingerprints/AudioAdsPresenterPlayFingerprint.kt
@@ -0,0 +1,16 @@
+package app.revanced.patches.twitch.ad.audio.fingerprints
+
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import app.revanced.patches.twitch.ad.audio.annotations.AudioAdsCompatibility
+
+@Name("audio-ads-presenter-play-fingerprint")
+@AudioAdsCompatibility
+@Version("0.0.1")
+object AudioAdsPresenterPlayFingerprint : MethodFingerprint(
+    customFingerprint = { method ->
+        method.definingClass.endsWith("AudioAdsPlayerPresenter;") && method.name == "playAd"
+    }
+)
\ No newline at end of file
diff --git a/src/main/kotlin/app/revanced/patches/twitch/ad/audio/patch/AudioAdsPatch.kt b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/patch/AudioAdsPatch.kt
new file mode 100644
index 000000000..ac680f5af
--- /dev/null
+++ b/src/main/kotlin/app/revanced/patches/twitch/ad/audio/patch/AudioAdsPatch.kt
@@ -0,0 +1,31 @@
+package app.revanced.patches.twitch.ad.audio.patch
+
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.annotation.Version
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.addInstruction
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patches.twitch.ad.audio.annotations.AudioAdsCompatibility
+import app.revanced.patches.twitch.ad.audio.fingerprints.AudioAdsPresenterPlayFingerprint
+
+@Patch
+@Name("block-audio-ads")
+@Description("Blocks audio ads in streams and VODs.")
+@AudioAdsCompatibility
+@Version("0.0.1")
+class AudioAdsPatch : BytecodePatch(
+    listOf(AudioAdsPresenterPlayFingerprint)
+) {
+    override fun execute(context: BytecodeContext): PatchResult {
+        // Block playAds call
+        with(AudioAdsPresenterPlayFingerprint.result!!) {
+            mutableMethod.addInstruction(0, "return-void")
+        }
+
+        return PatchResultSuccess()
+    }
+}