Telereview/code/interface_borne/assets/js/state_manager.js

const STATE = {
    sleeping: 0,
    video: 1,
    audio: 2,
    thankYou: 3,
};

class StateManager {
    constructor() {
        this._state = STATE.sleeping;
        this._cameraPage = new CameraPage();
        this._sleepingPage = new SleepingPage();
        this._audioPage = new AudioPage();
        this._thankYouPage = new ThankYouPage();

        this.wsClient = new WebsocketClient(
            (effects) =>  {
                this.setState(STATE.video);
                this._cameraPage.setEffects(effects)
            },
            (state) => this.setState(state),
            (grade) => this._audioPage.setGrade(grade)
        );
        
        this._sleepingPage.enabled = true;
        this._cameraPage.enabled = false;
        this._audioPage.enabled = false;
        this._thankYouPage.enabled = false;
    }

    setState(newState) {
        console.log({current:this._state,new:newState})
        if(this._state == STATE.sleeping && newState == STATE.video) {
            this._cameraPage.enabled = true;
            this._sleepingPage.enabled = false;
            this._state = newState;
        }else if(this._state == STATE.video && newState == STATE.audio) {
            this._cameraPage.enabled = false;
            this._audioPage.enabled = true;
            this._state = newState;
        }else if(this._state == STATE.audio && newState == STATE.thankYou) {
            this._audioPage.enabled = false;
            this._thankYouPage.enabled = true;
            this._state = newState;
        }else if(this._state == STATE.thankYou && newState == STATE.sleeping) {
            this._thankYouPage.enabled = false;
            this._sleepingPage.enabled = true;
            this._state = newState;
        }
    }
}