@file:OptIn(DelicateCoroutinesApi::class)

package moe.fuqiuluo.qqinterface.servlet

import android.os.Bundle
import com.tencent.mobileqq.app.QQAppInterface
import com.tencent.mobileqq.msf.core.MsfCore
import com.tencent.mobileqq.pb.ByteStringMicro
import com.tencent.qphone.base.remote.ToServiceMsg
import kotlinx.coroutines.DelicateCoroutinesApi
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import kotlinx.coroutines.suspendCancellableCoroutine
import kotlinx.coroutines.withTimeoutOrNull
import kotlinx.serialization.encodeToByteArray
import kotlinx.serialization.protobuf.ProtoBuf
import moe.fuqiuluo.shamrock.utils.PlatformUtils
import moe.fuqiuluo.shamrock.xposed.helper.AppRuntimeFetcher
import moe.fuqiuluo.shamrock.xposed.helper.internal.DynamicReceiver
import moe.fuqiuluo.shamrock.xposed.helper.internal.IPCRequest
import moe.whitechi73.protobuf.oidb.TrpcOidb
import mqq.app.MobileQQ
import tencent.im.oidb.oidb_sso
import kotlin.coroutines.resume

internal abstract class BaseSvc {
    companion object {
        val currentUin: String
            get() = app.currentAccountUin

        val app: QQAppInterface
            get() = AppRuntimeFetcher.appRuntime as QQAppInterface

        fun createToServiceMsg(cmd: String): ToServiceMsg {
            return ToServiceMsg("mobileqq.service", app.currentAccountUin, cmd)
        }

        suspend fun sendOidbAW(cmd: String, cmdId: Int, serviceId: Int, data: ByteArray, trpc: Boolean = false, timeout: Long = 5000L): ByteArray? {
            val seq = MsfCore.getNextSeq()
            return withTimeoutOrNull(timeout) {
                suspendCancellableCoroutine { continuation ->
                    GlobalScope.launch(Dispatchers.Default) {
                        DynamicReceiver.register(IPCRequest(cmd, seq) {
                            val buffer = it.getByteArrayExtra("buffer")!!
                            continuation.resume(buffer)
                        })
                    }
                    if (trpc) sendTrpcOidb(cmd, cmdId, serviceId, data, seq)
                    else sendOidb(cmd, cmdId, serviceId, data, seq)
                }
            }.also {
                if (it == null)
                    DynamicReceiver.unregister(seq)
            }?.copyOf()
        }

        suspend fun sendBufferAW(cmd: String, isPb: Boolean, data: ByteArray, timeout: Long = 5000L): ByteArray? {
            val seq = MsfCore.getNextSeq()
            return withTimeoutOrNull<ByteArray?>(timeout) {
                suspendCancellableCoroutine { continuation ->
                    GlobalScope.launch(Dispatchers.Default) {
                        DynamicReceiver.register(IPCRequest(cmd, seq) {
                            val buffer = it.getByteArrayExtra("buffer")!!
                            continuation.resume(buffer)
                        })
                        sendBuffer(cmd, isPb, data, seq)
                    }
                }
            }.also {
                if (it == null)
                    DynamicReceiver.unregister(seq)
            }?.copyOf()
        }

        fun sendOidb(cmd: String, cmdId: Int, serviceId: Int, buffer: ByteArray, seq: Int = -1, trpc: Boolean = false) {
            if (trpc) {
                sendTrpcOidb(cmd, cmdId, serviceId, buffer, seq)
                return
            }
            val to = createToServiceMsg(cmd)
            val oidb = oidb_sso.OIDBSSOPkg()
            oidb.uint32_command.set(cmdId)
            oidb.uint32_service_type.set(serviceId)
            oidb.bytes_bodybuffer.set(ByteStringMicro.copyFrom(buffer))
            oidb.str_client_version.set(PlatformUtils.getClientVersion(MobileQQ.getContext()))
            to.putWupBuffer(oidb.toByteArray())
            to.addAttribute("req_pb_protocol_flag", true)
            if (seq != -1) {
                to.addAttribute("shamrock_seq", seq)
            }
            app.sendToService(to)
        }

        fun sendTrpcOidb(cmd: String, cmdId: Int, serviceId: Int, buffer: ByteArray, seq: Int = -1) {
            val to = createToServiceMsg(cmd)

            val oidb = TrpcOidb(
                cmd = cmdId,
                service = serviceId,
                buffer = buffer,
                flag = 0
            )
            to.putWupBuffer(ProtoBuf.encodeToByteArray(oidb))

            to.addAttribute("req_pb_protocol_flag", true)
            if (seq != -1) {
                to.addAttribute("shamrock_seq", seq)
            }
            app.sendToService(to)
        }

        fun sendBuffer(cmd: String, isPb: Boolean, buffer: ByteArray, seq: Int = MsfCore.getNextSeq()) {
            val toServiceMsg = ToServiceMsg("mobileqq.service", app.currentUin, cmd)
            toServiceMsg.putWupBuffer(buffer)
            toServiceMsg.addAttribute("req_pb_protocol_flag", isPb)
            toServiceMsg.addAttribute("shamrock_seq", seq)
            app.sendToService(toServiceMsg)
        }
    }

    protected fun send(toServiceMsg: ToServiceMsg) {
        app.sendToService(toServiceMsg)
    }

    protected suspend fun sendAW(toServiceMsg: ToServiceMsg, timeout: Long = 5000L): ByteArray? {
        val seq = MsfCore.getNextSeq()
        return withTimeoutOrNull<ByteArray?>(timeout) {
            suspendCancellableCoroutine { continuation ->
                GlobalScope.launch(Dispatchers.Default) {
                    DynamicReceiver.register(IPCRequest(toServiceMsg.serviceCmd, seq) {
                        val buffer = it.getByteArrayExtra("buffer")!!
                        continuation.resume(buffer)
                    })
                    toServiceMsg.addAttribute("shamrock_seq", seq)
                    send(toServiceMsg)
                }
            }
        }.also {
            if (it == null) DynamicReceiver.unregister(seq)
        }?.copyOf()
    }

    protected fun sendExtra(cmd: String, builder: (Bundle) -> Unit) {
        val toServiceMsg = createToServiceMsg(cmd)
        builder(toServiceMsg.extraData)
        app.sendToService(toServiceMsg)
    }

    protected fun sendPb(cmd: String, buffer: ByteArray, seq: Int) {
        val toServiceMsg = createToServiceMsg(cmd)
        toServiceMsg.putWupBuffer(buffer)
        toServiceMsg.addAttribute("req_pb_protocol_flag", true)
        toServiceMsg.addAttribute("shamrock_seq", seq)
        app.sendToService(toServiceMsg)
    }
}