/*
 * @Author: your name
 * @Date: 2021-10-21 22:36:25
 * @LastEditTime: 2021-10-22 14:36:26
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \webrtc_easy_signal\proto.go
 */
package main

import (
	"encoding/json"
	"log"
	"sync"
)

type Request struct {
	Type int                    `json:"type"`
	Data map[string]interface{} `json:"data"`
}

const (
	REQ_LOGIN      = 1000
	REQ_INROOM     = 1001
	REQ_LEAVEROOM  = 1002
	REQ_CREATEROOM = 1003
	REQ_LISTROOM   = 1004
	REQ_SENDSDP    = 1005
)

type Peer struct {
	Name string        // 用户名
	Ws   *WsConnection // websocket连接
	Room *Room         // 当前处在哪个房间
}

type Room struct {
	Name  string           // 房间名称
	Peers map[string]*Peer // 在房间里的节点
}

var gmapRoom sync.Map
var gmapUser sync.Map

func get_peers_online(name string) *Peer {
	peer, ok := gmapUser.Load(name)
	if ok {
		return peer.(*Peer)
	}
	return nil
}

func get_interface_string(v interface{}) string {
	ret, ok := v.(string)
	if ok {
		return ret
	}
	return ""
}

func ProtoCallBack(ws *WsConnection, dat []byte) {
	if nil == ws {
		return
	}
	var payload Request
	e := json.Unmarshal(dat, &payload)
	if nil != e {
		log.Print(e.Error())
	}
	log.Print(payload)
	switch payload.Type {
	case REQ_LOGIN:
		name := get_interface_string(payload.Data["name"])
		if name != "" {
			if get_peers_online(name) != nil {
				log.Print("节点名重复")
				// todo 返回
				return
			}
			peer := new(Peer)
			peer.Name = name
			peer.Ws = ws
			gmapUser.Store(name, peer)
		}
	case REQ_INROOM:
		log.Print(payload.Data["name"])      // 用户名称
		log.Print(payload.Data["room_name"]) // 房间名称
		if (payload.Data["room_name"] != "") && (payload.Data["name"] != "") {
			// 不存在房间就创建房间
			if _, ok := gmapRoom.Load("room_name"); !ok {
				room := Room{
					Name: payload.Data["room_name"].(string),
				}
				gmapRoom.Store(payload.Data["room_name"], Room{})
				//
				if peer, ok := gmapUser.Load(payload.Data["name"]); ok {
					room.Peers[payload.Data["name"].(string)] = peer.(*Peer)

				}
			} else {
				// 将该用户添加进房间

			}
		}

		break
	case REQ_CREATEROOM:

		break
	case REQ_LEAVEROOM:

		break
	case REQ_LISTROOM:

		break
	case REQ_SENDSDP:

		break
	}
}