export class ChatManager {

    private static _instance: ChatManager;
    public static get instance(): ChatManager {
        if (!this._instance) {
            this._instance = new ChatManager();
        }
        return this._instance;
    }

    private _chatList: ChatGroupInfo[] = [];
    private _chatMsgList: ChatMsg[] = [];
    private _self: string;


    init(selfName: string) {
        this._self = selfName;
        this._chatList = [];
        this._chatMsgList = [];
    }

    sendMsg(msg: string, type: number, groupId: string, groupName: string, data: any, isNew: boolean = false) {
        if (this.checkMsgAdded(data)) return;
        let g: ChatGroupInfo = this._chatList.find(x => x.GroupID == groupId);
        if (!g) {
            g = new ChatGroupInfo();
            g.GroupID = groupId;
            g.GroupName = groupName;
            g.GroupIcon = [];
            this._chatList.push(g);
        }
        let m: ChatMsg = new ChatMsg();
        m.Data = data;
        m.GroupID = groupId;
        m.Msg = msg;
        m.MsgType = type;
        m.UserID = groupName;
        m.IsRead = groupName == this._self;
        m.ImgUrl = "";
        m.MsgID = "";
        m.Time = Date.now();
        this._chatMsgList.push(m);
        g.LastMsg = m;
        g.HaveNewMsg = isNew;
        return m;
    }

    checkMsgAdded(data) {
        return this._chatMsgList.find(x => x.Data == data) != null;
    }

    getChatList() {
        return this._chatList;
    }

    getMsgList(GroupID: string) {
        let group = this._chatList.find(x => x.GroupID == GroupID);
        if (!group) return [];
        group.HaveNewMsg = false;
        let msgList = this._chatMsgList.filter(x => x.GroupID == GroupID);
        return msgList;
    }

}

export class ChatUserInfo {
    UserID: string;
    Head: string;
}

export class ChatGroupInfo {
    GroupID: string;
    GroupName: string;
    GroupIcon: string[];
    LastMsg: ChatMsg;
    HaveNewMsg: boolean;
    TaskID: number;
}

export class ChatMsg {
    Data: any;
    MsgID: string;
    UserID: string;
    GroupID: string;
    Msg: string;
    MsgType: number;
    IsRead: boolean;
    ImgUrl: string;
    Time: number;
}