import {Log} from "fme-logger";
var L = new Log("groups");

import {TradechatUser} from "./users";
import {TradechatServer} from "../tradechat-server";
import {Collection} from "mongodb";
import { autoLinkUsernamesOrLists } from "twitter-text";

export class TradechatGroup {
    name:string = "";
    _id?: string ;
    id:string = "";
    maxSize:number = 10;
    owner:TradechatUser = {} as TradechatUser;
    members:TradechatUser[]= [];
    socketsId:string[] = [];
}

export class TradechatGroupController {
    groupDb:Collection = {} as Collection;
    groups:TradechatGroup[] = [];
    
    constructor(public tradechatServer:TradechatServer){
      
    }

    init = async () => {
        this.groupDb = this.tradechatServer.db.collection("groups");
    }

    addOnlineUserToGroups = (user:TradechatUser) => {
        for (var i in user.groups) {
            var group = user.groups[i];
           // this.getGroup(group).socketsId
        }
    }

    getGroup = (group:TradechatGroup) => {

    } 

    getGroups = async () => {
        this.groups = await this.groupDb.find({}).toArray(); 
    }

    createGroup = async (groupName:string,groupOwner:TradechatUser) => {
        var group = await this.groupDb.find({"name":groupName}).toArray() as TradechatGroup[];
        if (group.length == 0) {
            var newGroup = new TradechatGroup();
            newGroup.name = groupName;
            newGroup.owner = groupOwner;
            newGroup.members.push(groupOwner);
            await this.groupDb.save(newGroup);
        }
    }

    addUserToGroup = async (groupName:string,user:TradechatUser) => {
        var index = -1;
        var groups = await this.groupDb.find({"name":groupName}).toArray() as TradechatGroup[];
        if (groups.length == 1) {
            let group = groups[0];
            index = group.members.findIndex( (a) => { return a.id == user.id});
            if (index == -1) {
                L.info ("Add User To Group:",user);
                group.members.push(user);
                await this.groupDb.save(group);
            } else {
                L.error("addUsrToGroup: already a member",user);
            }
        } else {
            L.error("addUserToGroup: Too many or few groups",index,groups);
        }
    }

    removeUserFromGroup = async (groupName:string,user:TradechatUser) => {
        var index = -1;
        var groups = await this.groupDb.find({"name":groupName}).toArray() as TradechatGroup[];
        if (groups.length == 1) {
            let group = groups[0];
            index = group.members.findIndex( (a) => { return a.id == user.id});
            if (index == -1) {
                L.error ("RemoveUserFromGroup: can't find ",user);
            } else {
                L.error("addUsrToGroup: already a member",user);
                group.members.splice(index,1);
                await this.groupDb.save(group);
            }
        } else {
            L.error("addUserToGroup: Too many or few groups",index,groups);
        }
    }

}