package app.revanced.patches.layout

import app.revanced.patcher.PatcherData
import app.revanced.patcher.extensions.AccessFlagExtensions.Companion.or
import app.revanced.patcher.extensions.addInstructions
import app.revanced.patcher.patch.*
import app.revanced.patcher.signature.MethodMetadata
import app.revanced.patcher.signature.MethodSignature
import app.revanced.patcher.signature.MethodSignatureMetadata
import app.revanced.patcher.signature.PatternScanMethod
import app.revanced.patcher.smali.asInstructions
import org.jf.dexlib2.AccessFlags
import org.jf.dexlib2.Opcode
import org.jf.dexlib2.builder.instruction.BuilderInstruction21t

private val compatiblePackages = arrayOf("com.google.android.youtube")

class OldQualityLayoutPatch : Patch(
    metadata = PatchMetadata(
        "old-quality-layout",
        "Old Quality Layout Patch",
        "Enable the original quality flyout menu",
        compatiblePackages,
        "1.0.0"
    ),
    signatures = listOf(
        MethodSignature(
            methodSignatureMetadata = MethodSignatureMetadata(
                name = "old-quality-parent-method-signature",
                methodMetadata = MethodMetadata(null, null), // unknown
                patternScanMethod = PatternScanMethod.Fuzzy(2), // FIXME: Test this threshold and find the best value.
                compatiblePackages = compatiblePackages,
                description = "Signature to find a parent method required by the Old Quality Layout patch.",
                version = "0.0.1"
            ),
            returnType = "V",
            accessFlags = AccessFlags.PUBLIC or AccessFlags.CONSTRUCTOR,
            methodParameters = listOf("L", "L", "L", "L", "L", "L", "L"),
            opcodes = listOf(
                Opcode.IPUT_OBJECT,
                Opcode.CONST,
                Opcode.CONST,
                Opcode.INVOKE_STATIC,
                Opcode.MOVE_RESULT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.INVOKE_STATIC,
                Opcode.MOVE_RESULT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.SGET_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.SGET_OBJECT,
                Opcode.IPUT_OBJECT,
                Opcode.INVOKE_VIRTUAL,
                Opcode.MOVE_RESULT_OBJECT,
                Opcode.IGET_OBJECT,
                Opcode.IF_NEZ,
                Opcode.SGET_OBJECT,
                Opcode.IGET_OBJECT,
                Opcode.IF_NEZ,
                Opcode.SGET_OBJECT,
                Opcode.IGET_BOOLEAN,
                Opcode.CONST_4,
                Opcode.CONST_4,
                Opcode.CONST,
            )
        )
    )
) {
    override fun execute(patcherData: PatcherData): PatchResult {
        var result = signatures.first().result!!

        result = result.findParentMethod(
            MethodSignature(
                methodSignatureMetadata = MethodSignatureMetadata(
                    name = "old-quality-method-signature",
                    methodMetadata = MethodMetadata(null, null), // unknown
                    patternScanMethod = PatternScanMethod.Fuzzy(2), // FIXME: Test this threshold and find the best value.
                    compatiblePackages = compatiblePackages,
                    description = "Signature to find the method required by the Old Quality Layout patch",
                    version = "0.0.1"
                ),
                returnType = "L",
                accessFlags = AccessFlags.FINAL or AccessFlags.PUBLIC,
                emptyList(),
                listOf(
                    Opcode.IGET,
                    Opcode.CONST_4,
                    Opcode.IF_NE,
                    Opcode.IGET_OBJECT,
                    Opcode.GOTO,
                    Opcode.IGET_OBJECT,
                    Opcode.RETURN_OBJECT
                )
            )
        ) ?: return PatchResultError("Method old-quality-patch-method has not been found")

        val implementation = result.method.implementation!!

        // if useOldStyleQualitySettings == true, jump over all instructions and return the field at the end
        val jmpInstruction =
            BuilderInstruction21t(Opcode.IF_NEZ, 0, implementation.instructions[5].location.labels.first())
        implementation.addInstruction(0, jmpInstruction)
        implementation.addInstructions(
            0,
            """
                invoke-static { }, Lfi/razerman/youtube/XGlobals;->useOldStyleQualitySettings()Z
                move-result v0
            """.trimIndent().asInstructions()
        )

        return PatchResultSuccess()
    }
}