add enable-zen-mode patch

src/main/kotlin/app/revanced/patches/music/layout/zenmode/fingerprints/ZenModeFingerprint.kt

@@ -0,0 +1,19 @@
+package app.revanced.patches.music.layout.zenmode.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 ZenModeFingerprint : MethodFingerprint(
+    returnType = "V",
+    access = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = listOf("L", "J"),
+    opcodes = listOf(
+        Opcode.MOVE_RESULT,
+        Opcode.INVOKE_STATIC,
+        Opcode.MOVE_RESULT,
+        Opcode.GOTO,
+        Opcode.NOP
+    )
+)

src/main/kotlin/app/revanced/patches/music/layout/zenmode/patch/ZenModePatch.kt

@@ -0,0 +1,73 @@
+package app.revanced.patches.music.layout.zenmode.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.*
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint.Companion.resolve
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patcher.patch.annotations.DependsOn
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.PatchResult
+import app.revanced.patcher.patch.PatchResultSuccess
+import app.revanced.patches.music.misc.integrations.patch.MusicIntegrationsPatch
+import app.revanced.patches.music.misc.settings.patch.MusicSettingsPatch
+import app.revanced.patches.music.layout.zenmode.fingerprints.ZenModeFingerprint
+import app.revanced.shared.annotation.YouTubeMusicCompatibility
+import app.revanced.shared.fingerprints.MiniplayerColorParentFingerprint
+import app.revanced.shared.util.integrations.Constants.MUSIC_SETTINGS_PATH
+import org.jf.dexlib2.iface.instruction.ReferenceInstruction
+import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
+import org.jf.dexlib2.iface.reference.FieldReference
+
+@Patch
+@Name("enable-zen-mode")
+@Description("Adds a grey tint to the video player to reduce eye strain.")
+@DependsOn([MusicIntegrationsPatch::class, MusicSettingsPatch::class])
+@YouTubeMusicCompatibility
+@Version("0.0.1")
+class ZenModePatch : BytecodePatch(
+    listOf(
+        ZenModeFingerprint, MiniplayerColorParentFingerprint
+    )
+) {
+    override fun execute(context: BytecodeContext): PatchResult {
+
+        val miniplayerColorParentResult = MiniplayerColorParentFingerprint.result!!
+
+        ZenModeFingerprint.resolve(context, miniplayerColorParentResult.classDef)
+        val ZenModeResult = ZenModeFingerprint.result!!
+        val ZenModeMethod = ZenModeResult.mutableMethod
+        val ZenModeInstructions = ZenModeMethod.implementation!!.instructions
+
+        val startIndex = ZenModeResult.scanResult.patternScanResult!!.startIndex
+
+        val firstRegister = (ZenModeMethod.instruction(startIndex) as OneRegisterInstruction).registerA
+        val secondRegister = (ZenModeMethod.instruction(startIndex + 2) as OneRegisterInstruction).registerA
+        val dummyRegister = secondRegister + 1
+
+        val referenceIndex = ZenModeResult.scanResult.patternScanResult!!.endIndex + 1
+        val Ref = (ZenModeInstructions.elementAt(referenceIndex) as ReferenceInstruction).reference as FieldReference
+
+        val insertIndex = referenceIndex + 1
+
+        ZenModeMethod.addInstructions(
+            insertIndex, """
+            invoke-static {}, $MUSIC_SETTINGS_PATH->enableZenMode()Z
+            move-result v$dummyRegister
+            if-eqz v$dummyRegister, :off
+            const v$dummyRegister, -0xfcfcfd
+            if-ne v$firstRegister, v$dummyRegister, :off
+            const v$firstRegister, -0xbfbfc0
+            const v$secondRegister, -0xbfbfc0
+            :off
+            sget-object v0, ${Ref.type}->${Ref.name}:${Ref.type}
+        """
+        )
+
+        ZenModeMethod.removeInstruction(insertIndex - 1)
+
+        return PatchResultSuccess()
+    }
+}