var YM = require('yahoomessenger');

var username;
var password;

var callbacks;

function onReady() {
    var _username = username;
    var _password = password;

    if (!_username || !-password) {
        logger.warn('Undefined YM username and password')
        process.exit(5);
    }

    logger.info('Going to login to YM as ' + username);
    YM.login(username, password);
}

function onLoginSuccessful(data) {
    logger.info('YM login successful', {data: data});
    if (callbacks.onLoginSuccessful) {
        callbacks.onLoginSuccessful();
    }
}

function onLoginError(data) {
    logger.warn('YM login error', {data: data});
}

function onFriendsList(data) {
    logger.verbose('Got list of friendlist', {data: data});
}

function onPM(data) {
    logger.verbose('Got a message', {data: data})
    if (callbacks.onPM) {
        callbacks.onPM(data.sender, data.message);
    }
}

function onPing(data) {
    logger.verbose('Got ping', {data: data});
}

function init(_username, _password, _logger, _callbacks) {
    username = _username;
    password = _password;
    logger = _logger;
    callbacks = _callbacks;

    YM.on('ready', onReady);
    YM.on('loginSuccessful', onLoginSuccessful);
    YM.on('loginError', onLoginError);
    YM.on('friendsList', onFriendsList);
    YM.on('pm', onPM);
    YM.on('offlinePM', onPM);

    /*
    setTimeout(
        YM.newInstance,
        3000
    )
    */
    YM.newInstance();
}

function sendMessage(destination, msg) {
    logger.verbose('Sending message', {from: username, destination: destination, msg: msg});
    YM.sendPM(destination, msg);
}

exports.init = init;
exports.sendMessage = sendMessage;