package qq.service.msg

import com.tencent.mobileqq.qroute.QRoute
import com.tencent.qqnt.kernel.nativeinterface.Contact
import com.tencent.qqnt.kernel.nativeinterface.MsgConstant
import com.tencent.qqnt.kernel.nativeinterface.MsgRecord
import com.tencent.qqnt.msg.api.IMsgService
import io.grpc.Status
import io.grpc.StatusRuntimeException
import io.kritor.common.ForwardElement
import io.kritor.common.ForwardMessageBody
import io.kritor.common.Scene
import kotlinx.coroutines.suspendCancellableCoroutine
import kotlinx.coroutines.withTimeoutOrNull
import moe.fuqiuluo.shamrock.helper.Level
import moe.fuqiuluo.shamrock.helper.LogCenter
import moe.fuqiuluo.shamrock.tools.slice
import moe.fuqiuluo.shamrock.utils.DeflateTools
import moe.fuqiuluo.symbols.decodeProtobuf
import protobuf.auto.toByteArray
import protobuf.message.*
import protobuf.message.longmsg.*
import qq.service.QQInterfaces
import qq.service.contact.ContactHelper
import qq.service.msg.MessageHelper.getMultiMsg
import qq.service.ticket.TicketHelper
import java.util.*
import kotlin.coroutines.resume
import kotlin.random.Random
import kotlin.time.Duration.Companion.seconds

internal object ForwardMessageHelper : QQInterfaces() {
    suspend fun uploadMultiMsg(
        contact: Contact,
        messages: List<ForwardMessageBody>,
    ): Result<ForwardElement> {
        var i = -1
        val desc = MutableList(messages.size) { "" }
        val forwardMsg = mutableMapOf<String, String>()

        val msgs = messages.mapNotNull { msg ->
            kotlin.runCatching {
                when (msg.forwardMessageCase) {
                    ForwardMessageBody.ForwardMessageCase.MESSAGE_ID -> {
                        val record: MsgRecord = withTimeoutOrNull(5000) {
                            val service = QRoute.api(IMsgService::class.java)
                            suspendCancellableCoroutine { continuation ->
                                service.getMsgsByMsgId(
                                    contact,
                                    arrayListOf(msg.messageId.toLong())
                                ) { code, _, msgRecords ->
                                    if (code == 0 && msgRecords.isNotEmpty()) {
                                        continuation.resume(msgRecords.first())
                                    } else {
                                        continuation.resume(null)
                                    }
                                }
                                continuation.invokeOnCancellation {
                                    continuation.resume(null)
                                }
                            }
                        } ?: error("合并转发消息节点消息(id = ${msg.messageId})获取失败")
                        PushMsgBody(
                            msgHead = ResponseHead(
                                peerUid = record.senderUid,
                                receiverUid = record.peerUid,
                                forward = ResponseForward(
                                    friendName = record.sendNickName
                                ),
                                responseGrp = if (record.chatType == MsgConstant.KCHATTYPEGROUP) ResponseGrp(
                                    groupCode = record.peerUin.toULong(),
                                    memberCard = record.sendMemberName,
                                    u1 = 2
                                ) else null
                            ),
                            contentHead = ContentHead(
                                msgType = when (record.chatType) {
                                    MsgConstant.KCHATTYPEC2C -> 9
                                    MsgConstant.KCHATTYPEGROUP -> 82
                                    else -> throw UnsupportedOperationException("Unsupported chatType: ${contact.chatType}")
                                },
                                msgSubType = if (record.chatType == MsgConstant.KCHATTYPEC2C) 175 else null,
                                divSeq = if (record.chatType == MsgConstant.KCHATTYPEC2C) 175 else null,
                                msgViaRandom = record.msgId,
                                sequence = record.msgSeq, // idk what this is(i++)
                                msgTime = record.msgTime,
                                u2 = 1,
                                u6 = 0,
                                u7 = 0,
                                msgSeq = if (record.chatType == MsgConstant.KCHATTYPEC2C) record.msgSeq else null, // seq for dm
                                forwardHead = ForwardHead(
                                    u1 = 0,
                                    u2 = 0,
                                    u3 = 0,
                                    ub641 = "",
                                    avatar = ""
                                )
                            ),
                            body = MsgBody(
                                richText = record.elements.toKritorReqMessages(contact).toRichText(contact).onFailure {
                                    error("消息合成失败: ${it.stackTraceToString()}")
                                }.onSuccess {
                                    desc[++i] = record.sendMemberName.ifEmpty { record.sendNickName } + ": " + it.first
                                }.getOrThrow().second
                            )
                        )
                    }

                    ForwardMessageBody.ForwardMessageCase.MESSAGE -> {
                        val _msg = msg.message
                        PushMsgBody(
                            msgHead = if (_msg.hasSender()) ResponseHead(
                                peer = if (_msg.sender.hasUin()) _msg.sender.uin else TicketHelper.getUin().toLong(),
                                peerUid = _msg.sender.uid,
                                receiverUid = TicketHelper.getUid(),
                                forward = ResponseForward(
                                    friendName = if (_msg.sender.hasNick()) _msg.sender.nick else TicketHelper.getNickname()
                                )
                            ) else ResponseHead(
                                peer = TicketHelper.getUin().toLong(),
                                peerUid = TicketHelper.getUid(),
                                receiverUid = TicketHelper.getUid(),
                                forward = ResponseForward(
                                    friendName = TicketHelper.getNickname()
                                )
                            ),
                            contentHead = ContentHead(
                                msgType = 9,
                                msgSubType = 175,
                                divSeq = 175,
                                msgViaRandom = Random.nextLong(),
                                sequence = _msg.messageSeq,
                                msgTime = _msg.time.toLong(),
                                u2 = 1,
                                u6 = 0,
                                u7 = 0,
                                msgSeq = _msg.messageSeq,
                                forwardHead = ForwardHead(
                                    u1 = 0,
                                    u2 = 0,
                                    u3 = 2,
                                    ub641 = "",
                                    avatar = ""
                                )
                            ),
                            body = MsgBody(
                                richText = _msg.elementsList.toRichText(contact).onSuccess {
                                    desc[++i] =
                                        (if (_msg.hasSender() && _msg.sender.hasNick()) _msg.sender.nick else TicketHelper.getNickname()) + ": " + it.first
                                }.onFailure {
                                    error("消息合成失败: ${it.stackTraceToString()}")
                                }.getOrThrow().second
                            )
                        )
                    }

                    else -> null
                }
            }.onFailure {
                LogCenter.log("消息节点解析失败：${it.stackTraceToString()}", Level.WARN)
            }.getOrNull()
        }.ifEmpty {
            return Result.failure(Exception("消息节点为空"))
        }

        val payload = LongMsgPayload(
            action = mutableListOf(
                LongMsgAction(
                    command = "MultiMsg",
                    data = LongMsgContent(
                        body = msgs
                    )
                )
            ).apply {
                forwardMsg.map { msg ->
                    addAll(getMultiMsg(msg.value).getOrElse { return Result.failure(Exception("无法获取嵌套转发消息: $it")) }
                        .map { action ->
                            if (action.command == "MultiMsg") LongMsgAction(
                                command = msg.key,
                                data = action.data
                            ) else action
                        })
                }
            }
        )

        val req = LongMsgReq(
            sendInfo = when (contact.chatType) {
                MsgConstant.KCHATTYPEC2C -> SendLongMsgInfo(
                    type = 1,
                    uid = LongMsgUid(contact.peerUid),
                    payload = DeflateTools.gzip(payload.toByteArray())
                )

                MsgConstant.KCHATTYPEGROUP -> SendLongMsgInfo(
                    type = 3,
                    uid = LongMsgUid(contact.peerUid),
                    groupUin = contact.peerUid.toULong(),
                    payload = DeflateTools.gzip(payload.toByteArray())
                )

                else -> throw UnsupportedOperationException("Unsupported chatType: ${contact.chatType}")
            },
            setting = LongMsgSettings(
                field1 = 4,
                field2 = 2,
                field3 = 9,
                field4 = 0
            )
        ).toByteArray()

        val fromServiceMsg =
            sendBufferAW("trpc.group.long_msg_interface.MsgService.SsoSendLongMsg", true, req, timeout = 60.seconds)
                ?: return Result.failure(Exception("unable to upload multi message, response timeout"))
        val rsp = runCatching {
            fromServiceMsg.wupBuffer.slice(4).decodeProtobuf<LongMsgRsp>()
        }.getOrElse {
            fromServiceMsg.wupBuffer.decodeProtobuf<LongMsgRsp>()
        }
        val resId = rsp.sendResult?.resId ?: return Result.failure(Exception("unable to upload multi message"))

        return Result.success(ForwardElement.newBuilder().apply {
            this.resId = resId
            this.summary = summary
            this.uniseq = UUID.randomUUID().toString()
            this.description = desc.slice(0..if (i < 3) i else 3).joinToString("\n")
        }.build())
    }
}