admin.js

AV.init({
    appId: AVAPPID,
    appKey: AVAPPKEY,
});

function admin() {
    return {
        // Control State
        isShowShareArea: false,
        // Info State
        roomName: null,
        roomId: null,
        userId: null,
        shareText: "",
        nickName: null,
        userName: null,
        usernameExist: false,
        async init() {
            username = window.localStorage.getItem("username");
            if (username) {
                this.usernameExist = true;
            } else {
                this.usernameExist = false;
            }
        },
        loginAsAdmin() {
            var win = window.open(BASEURL + "?invite=" + this.roomId + "&user=" + this.userName, '_blank');
            win.focus();
        },
        generateShareText() {
            return "I've created a chat room on NESHouse. Copy & open the following link in your browser and let's chat! " + BASEURL + "?invite=" + this.roomId
        },
        copyLink() {
            if (!this.roomId || !this.userId) {
                alert("There was an error creating the room, please refresh this page.");
                return;
            }
            ;
            navigator.permissions.query({ name: "clipboard-write" }).then(result => {
                if (result.state == "granted" || result.state == "prompt") {
                    navigator.clipboard.writeText(this.generateShareText())
                } else {
                    alert("Your browser forbids text copying. Please select and copy the text in the box yourself.")
                    console.log(result.state)
                }
            });

        },
        createNewUser() {
            window.localStorage.removeItem("username");
            this.usernameExist = false;
        },
        async createRoom() {
            // Generate Username 
            let username = window.localStorage.getItem("username");
            // Sign up a user 
            const user = new AV.User();
            let userObj = null;
            try {
                if (!username) {
                    if (!this.nickName) {
                        alert("You have to choose a nickname. :)")
                        return
                    }
                    username = Math.floor(Math.random() * 10000).toString(5) + Math.floor(Math.random() * 10000).toString(5);
                    localStorage.setItem("username", username);
                    user.setUsername(username);
                    user.setPassword(username);
                    user.set('nickname', this.nickName);
                    userObj = await user.signUp()
                } else {
                    userObj = await AV.User.logIn(username, username);
                    if (this.nickName) {
                        user.set('nickname', this.nickName);
                        user.save();
                    }
                }
                // record user state
                this.userId = userObj.id;
                this.userName = username;
                try {
                    // Create Room and make currentUser as Admin
                    if (!this.roomName) {
                        alert("You have to name the room. :)")
                        return
                    }
                    const Room = AV.Object.extend('Room');
                    const room = new Room();
                    room.set("title", this.roomName);
                    room.set("adminUser", userObj.id);
                    let roomObj = await room.save();

                    // record Room State
                    this.roomId = roomObj.id;
                    console.log("roomID", roomObj.id);
                    // Show Share Area
                    this.isShowShareArea = true;
                    this.shareText = this.generateShareText();
                } catch (e) {
                    alert("Failed to create a chat room, please shoot an email to bestony@linux.com.");
                    console.log(e);
                }
            } catch (e) {
                alert("Failed to register the account, please shoot an email to bestony@linux.com.");
                console.log(e);
            }
        }
    }
}