const net = require('net');
const constants = require('../libs/constants');
const Message = require('./Message');

class Audiostream {

    constructor() {
        this.#handleEvents();
    }

    getHost() {
        return this.host;
    }

    getPort() {
        return this.port;
    }

    getTag() {
        return this.getHost() + ':' + this.getPort();
    }

    #initialize(data) {
        this.host = config?.server?.host || "127.0.0.1";
        this.port = data.port;
        this.clientId = data.clientId;
        this.settings = data.settings;
        this.#handleSocket(net.connect({
            host: this.getHost(),
            port: this.getPort()
        }));
    }

    #handleEvents() {
        eventparser.on('audio:initialize', (data) => {
            logger.debug('handling event \'audio:initialize\'...');
            this.#initialize(data);
        });
        eventparser.on(constants.AUDIO_PLAY, () => {
            logger.debug('handling event \'' + constants.AUDIO_PLAY + '\'...');
            global.player.play();
        });
        eventparser.on(constants.AUDIO_RESUME, () => {
            logger.debug('handling event \'' + constants.AUDIO_RESUME + '\'...');
            global.player.resume();
        });
        eventparser.on(constants.AUDIO_PAUSE, () => {
            logger.debug('handling event \'' + constants.AUDIO_PAUSE + '\'...');
            global.player.pause();
        });
        eventparser.on(constants.AUDIO_STOP, () => {
            logger.debug('handling event \'' + constants.AUDIO_STOP + '\'...');
            global.player.stop();
        });
        global.player.on(constants.STATECHANGE, (data) => {
            new Message(constants.AUDIO_STATE, {
                clientId: this.clientId,
                state: data.state,
                progress: data.progress
            }).send();
        });
    }

    #handleSocket(socket) {
        socket.on('connect', async () => {
            logger.debug('connected to audio server \'' + this.getTag() + '\'...');
            await global.player.prepare(socket, this.settings);
            new Message('audio:register', { clientId: this.clientId, port: socket.localPort }).send();
        });
        socket.on('error', (error) => {
            logger.error('error connecting to audio server \'' + this.getTag() + '\': ' + error);
        });
    }

    destroy() {

    }
}

module.exports = Audiostream;