feat(YouTube Music): Add Permanent repeat patch (ReVanced#2722)

Co-authored-by: oSumAtrIX <[email protected]>

src/main/kotlin/app/revanced/patches/music/interaction/permanentrepeat/fingerprints/RepeatTrackFingerprint.kt

@@ -0,0 +1,22 @@
+package app.revanced.patches.music.interaction.permanentrepeat.fingerprints
+
+import app.revanced.patcher.extensions.or
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import org.jf.dexlib2.AccessFlags
+import org.jf.dexlib2.Opcode
+
+object RepeatTrackFingerprint : MethodFingerprint(
+    "V",
+    AccessFlags.PUBLIC or AccessFlags.FINAL,
+    listOf("L", "L"),
+    listOf(
+        Opcode.CHECK_CAST,
+        Opcode.INVOKE_INTERFACE,
+        Opcode.IGET_OBJECT,
+        Opcode.IGET_OBJECT,
+        Opcode.SGET_OBJECT,
+        Opcode.INVOKE_VIRTUAL,
+        Opcode.MOVE_RESULT,
+        Opcode.IF_NEZ
+    )
+)

src/main/kotlin/app/revanced/patches/music/interaction/permanentrepeat/patch/PermanentRepeatPatch.kt

@@ -0,0 +1,40 @@
+package app.revanced.patches.music.interaction.permanentrepeat.patch
+
+import app.revanced.extensions.toErrorResult
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructionsWithLabels
+import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
+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.patcher.util.smali.ExternalLabel
+import app.revanced.patches.music.annotations.MusicCompatibility
+import app.revanced.patches.music.interaction.permanentrepeat.fingerprints.RepeatTrackFingerprint
+
+@Patch(false)
+@Name("Permanent repeat")
+@Description("Permanently remember your repeating preference even if the playlist ends or another track is played.")
+@MusicCompatibility
+class PermanentRepeatPatch : BytecodePatch(
+    listOf(RepeatTrackFingerprint)
+) {
+    override fun execute(context: BytecodeContext): PatchResult {
+        RepeatTrackFingerprint.result?.let {
+            val startIndex = it.scanResult.patternScanResult!!.endIndex
+            val repeatIndex = startIndex + 3
+
+            it.mutableMethod.apply {
+                addInstructionsWithLabels(
+                    startIndex,
+                    "goto :repeat",
+                    ExternalLabel("repeat", getInstruction(repeatIndex))
+                )
+            }
+        } ?: return RepeatTrackFingerprint.toErrorResult()
+
+        return PatchResultSuccess()
+    }
+}