/*!
 * Module dependencies.
 */

var phonegapbuild = require('./util/phonegap-build');
var Command = require('./util/command');
var cordova = require('../cordova').cordova;
var util = require('util');

/*!
 * Command setup.
 */

module.exports = {
    create: function (phonegap) {
        return new ModeCommand(phonegap);
    }
};

function ModeCommand (phonegap) {
    return Command.apply(this, arguments);
}

util.inherits(ModeCommand, Command);

/**
 * Mode configuration.
 *
 * Customize the running mode.
 *
 * Options:
 *
 *   - `options` {Object}
 *     - `verbose` {Boolean} is true to enable additional output from dependencies..
 *   - [`callback`] {Function} is triggered after completion.
 *     - `e` {Error} is null unless there is an error.
 *
 * Returns:
 *
 *   {PhoneGap} for chaining.
 */

ModeCommand.prototype.run = function (options, callback) {
    // require options
    if (!options) throw new Error('requires option parameter');

    // optional callback
    callback = callback || function () {};

    // update mode
    this.execute(options, callback);

    return this.phonegap;
};

/*!
 * Execute.
 */

ModeCommand.prototype.execute = function (options, callback) {
    var self = this.phonegap;

    // reset the listeners on the a new PhoneGap instance
    bind.reset();

    if (options.verbose) {
        // verbose output
        bind.normal(self);
        bind.verbose(self);
    } else if (options.quiet) {
        // quiet output shh...
    } else {
        // normal output
        bind.normal(self);
    }
};

/*!
 * Bind listening modes.
 */

var bind = {
    /*!
     * Reset the listening modes.
     */
    reset: function () {
        phonegapbuild.removeAllListeners('log');
        phonegapbuild.removeAllListeners('warn');
        phonegapbuild.removeAllListeners('error');
        phonegapbuild.removeAllListeners('raw');
        cordova.removeAllListeners('log');
        cordova.removeAllListeners('warn');
        cordova.removeAllListeners('before_library_download');
        cordova.removeAllListeners('library_download');
        cordova.removeAllListeners('after_library_download');
    },

    /*!
     * Normal output level events.
     */
    normal: function (self) {
        phonegapbuild.on('log', function () {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('log');
            self.emit.apply(self, args);
        });

        phonegapbuild.on('warn', function () {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('warn');
            self.emit.apply(self, args);
        });

        phonegapbuild.on('error', function (e) {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('error');
            self.emit.apply(self, args);
        });

        phonegapbuild.on('raw', function () {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('raw');
            self.emit.apply(self, args);
        });

        cordova.on('before_library_download', function (data) {
            self.emit('log', util.format('missing library %s/%s/%s',
                data.id, data.platform, data.version
            ));
            self.emit('log', util.format('downloading %s...', data.url));
        });

        cordova.on('library_download', function () {
            // do nothing
        });

        cordova.on('after_library_download', function () {
            // do nothing
        });
    },

    /*!
     * Verbose output level events.
     */
    verbose: function (self) {
        cordova.on('log', function () {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('log');
            self.emit.apply(self, args);
        });

        cordova.on('warn', function () {
            var args = Array.prototype.slice.call(arguments);
            args.unshift('log');
            self.emit.apply(self, args);
        });
    }
};
