/*!
 * jQuery Countdown plugin v1.0
 * http://www.littlewebthings.com/projects/countdown/
 *
 * Copyright 2010, Vassilis Dourdounis
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
(function ($) {

    $.fn.countDown = function (options) {

        config = {};

        $.extend(config, options);

        diffSecs = this.setCountDown(config);

        if (config.onComplete) {
            $.data($(this)[0], 'callback', config.onComplete);
        }
        if (config.omitWeeks) {
            $.data($(this)[0], 'omitWeeks', config.omitWeeks);
        }

        $('#' + $(this).attr('id') + ' .digit').html('<div class="top"></div><div class="bottom"></div>');
        $(this).doCountDown($(this).attr('id'), diffSecs, 500);

        return this;

    };

    $.fn.stopCountDown = function () {
        clearTimeout($.data(this[0], 'timer'));
    };

    $.fn.startCountDown = function () {
        this.doCountDown($(this).attr('id'), $.data(this[0], 'diffSecs'), 500);
    };

    $.fn.setCountDown = function (options) {
        var targetTime = new Date();

        if (options.targetDate) {
            targetTime = new Date(options.targetDate.month + '/' + options.targetDate.day + '/' + options.targetDate.year + ' ' + options.targetDate.hour + ':' + options.targetDate.min + ':' + options.targetDate.sec + (options.targetDate.utc ? ' UTC' : ''));
        }
        else if (options.targetOffset) {
            targetTime.setFullYear(options.targetOffset.year + targetTime.getFullYear());
            targetTime.setMonth(options.targetOffset.month + targetTime.getMonth());
            targetTime.setDate(options.targetOffset.day + targetTime.getDate());
            targetTime.setHours(options.targetOffset.hour + targetTime.getHours());
            targetTime.setMinutes(options.targetOffset.min + targetTime.getMinutes());
            targetTime.setSeconds(options.targetOffset.sec + targetTime.getSeconds());
        }

        var nowTime = new Date();

        diffSecs = Math.floor((targetTime.valueOf() - nowTime.valueOf()) / 1000);

        $.data(this[0], 'diffSecs', diffSecs);

        return diffSecs;
    };

    $.fn.doCountDown = function (id, diffSecs, duration) {
        $this = $('#' + id);
        if (diffSecs <= 0) {
            diffSecs = 0;
            if ($.data($this[0], 'timer')) {
                clearTimeout($.data($this[0], 'timer'));
            }
        }

        secs = diffSecs % 60;
        mins = Math.floor(diffSecs / 60) % 60;
        hours = Math.floor(diffSecs / 60 / 60) % 24;
        if ($.data($this[0], 'omitWeeks') == true) {
            days = Math.floor(diffSecs / 60 / 60 / 24);
            weeks = Math.floor(diffSecs / 60 / 60 / 24 / 7);
        }
        else {
            days = Math.floor(diffSecs / 60 / 60 / 24) % 7;
            weeks = Math.floor(diffSecs / 60 / 60 / 24 / 7);
        }

        $this.dashChangeTo(id, 'seconds_dash', secs, duration ? duration : 800);
        $this.dashChangeTo(id, 'minutes_dash', mins, duration ? duration : 1200);
        $this.dashChangeTo(id, 'hours_dash', hours, duration ? duration : 1200);
        $this.dashChangeTo(id, 'days_dash', days, duration ? duration : 1200);
        $this.dashChangeTo(id, 'weeks_dash', weeks, duration ? duration : 1200);

        $.data($this[0], 'diffSecs', diffSecs);
        if (diffSecs > 0) {
            e = $this;
            t = setTimeout(function () { e.doCountDown(id, diffSecs - 1) }, 1000);
            $.data(e[0], 'timer', t);
        }
        else if (cb = $.data($this[0], 'callback')) {
            $.data($this[0], 'callback')();
        }

    };

    $.fn.dashChangeTo = function (id, dash, n, duration) {
        $this = $('#' + id);

        for (var i = ($this.find('.' + dash + ' .digit').length - 1) ; i >= 0; i--) {
            var d = n % 10;
            n = (n - d) / 10;
            $this.digitChangeTo('#' + $this.attr('id') + ' .' + dash + ' .digit:eq(' + i + ')', d, duration);
        }
    };

    $.fn.digitChangeTo = function (digit, n, duration) {
        if (!duration) {
            duration = 800;
        }
        if ($(digit + ' div.top').html() != n + '') {

            $(digit + ' div.top').css({ 'display': 'none' });
            $(digit + ' div.top').html((n ? n : '0')).slideDown(duration);

            $(digit + ' div.bottom').animate({ 'height': '' }, duration, function () {
                $(digit + ' div.bottom').html($(digit + ' div.top').html());
                $(digit + ' div.bottom').css({ 'display': 'block', 'height': '' });
                $(digit + ' div.top').hide().slideUp(10);


            });
        }
    };

})(jQuery);

