package mq

import (
	"encoding/json"
	"fmt"
	"git.hpds.cc/Component/logging"
	"git.hpds.cc/Component/network/frame"
	"go.uber.org/zap"
	"hpds-iot-web/config"
	"os"
	"time"

	"git.hpds.cc/pavement/hpds_node"
)

var MqList []HpdsMqNode

type HpdsMqNode struct {
	MqType   uint
	Topic    string
	Node     config.HpdsNode
	EndPoint interface{}
}

var ifChannelsMapInit = false

var ChannelsMap = map[string]chan string{}

func initChannelsMap() {
	ChannelsMap = make(map[string]chan string)
}
func AddChannel(userId string) {
	if !ifChannelsMapInit {
		initChannelsMap()
		ifChannelsMapInit = true
	}
	var newChannel = make(chan string)
	ChannelsMap[userId] = newChannel
	logging.L().Info("Build SSE connection for user = " + userId)
}

func must(logger *logging.Logger, err error) {
	if err != nil {
		if logger != nil {
			logger.With(zap.String("web节点", "错误信息")).Error("启动错误", zap.Error(err))
		} else {
			_, _ = fmt.Fprint(os.Stderr, err)
		}
		os.Exit(1)
	}
}

func NewMqClient(funcs []config.FuncConfig, node config.HpdsNode, logger *logging.Logger) (mqList []HpdsMqNode, err error) {
	mqList = make([]HpdsMqNode, 0)
	for _, v := range funcs {
		switch v.MqType {
		case 2:
			sf := hpds_node.NewStreamFunction(
				v.Name,
				hpds_node.WithMqAddr(fmt.Sprintf("%s:%d", node.Host, node.Port)),
				hpds_node.WithObserveDataTags(frame.Tag(v.DataTag)),
				hpds_node.WithCredential(node.Token),
			)
			err = sf.Connect()
			nodeInfo := HpdsMqNode{
				MqType:   2,
				Topic:    v.Name,
				Node:     node,
				EndPoint: sf,
			}
			must(logger, err)
			switch v.Name {
			case "task-log":
				_ = sf.SetHandler(TaskLogNotificationHandler)
			default:

			}
			mqList = append(mqList, nodeInfo)
		default:
			ap := hpds_node.NewAccessPoint(
				v.Name,
				hpds_node.WithMqAddr(fmt.Sprintf("%s:%d", node.Host, node.Port)),
				hpds_node.WithCredential(node.Token),
			)
			err = ap.Connect()
			nodeInfo := HpdsMqNode{
				MqType:   1,
				Topic:    v.Name,
				Node:     node,
				EndPoint: ap,
			}
			must(logger, err)
			ap.SetDataTag(frame.Tag(v.DataTag))
			mqList = append(mqList, nodeInfo)
		}

	}
	return mqList, err
}

func GetMqClient(topic string, mqType uint) *HpdsMqNode {
	for _, v := range MqList {
		if v.Topic == topic && v.MqType == mqType {
			return &v
		}
	}
	return nil
}

func GenerateAndSendData(stream hpds_node.AccessPoint, data []byte, logger *logging.Logger) error {
	logger.With(zap.String("web节点", "发送消息")).Info("数据", zap.String("发送的数据", string(data)))
	_, err := stream.Write(data)
	if err != nil {
		return err
	}
	time.Sleep(1000 * time.Millisecond)
	return nil
}

func TaskLogNotificationHandler(data []byte) (frame.Tag, []byte) {
	logging.L().Info("任务日志", zap.String("接收数据", string(data)))
	cmd := new(InstructionReq)
	err := json.Unmarshal(data, cmd)
	if err != nil {
		return 0x0B, []byte(err.Error())
	}
	str, _ := json.Marshal(cmd.Payload)
	for key := range ChannelsMap {
		//if strings.Contains(key, userEmail) {
		//	channel := channelsMap[key]
		//	channel <- string(msgBytes)
		//}

		channel := ChannelsMap[key]
		channel <- string(str)
	}
	return 0x0B, nil
}