/*
 bxSlider v2.0
 Plugin developed by: Steven Wanderski
 http://bxslider.com
 http://stevenwanderski.com
 Released under the GPL license:
 http://www.gnu.org/licenses/gpl.html
 */
(function($){
    $.fn.bxSlider = function(options){
        var defaults = {
            alignment: 'horizontal',
            controls: true,
            speed: 500,
            pager: true,
            margin: 0,
            next_text: 'next',
            next_image: '',
            prev_text: 'prev',
            prev_image: '',
            auto: false,
            pause: 12000,
            auto_direction: 'next',
            auto_hover: true,
            auto_controls: false,
            ticker: false,
            ticker_controls: false,
            ticker_direction: 'next',
            ticker_hover: true,
            stop_text: 'stop',
            start_text: 'start',
            wrapper_class: 'bxslider_wrap'
        };
        var o = $.extend(defaults, options);
        return this.each(function(){
            var $this = $(this);
            var $kids = $this.children();
            var l = $this.children().length;
            var first = $this.children(':first').clone();
            var last = $this.children(':last').clone();
            var w = 0, h = 0, current_temp = 0, pos = 0, d = 0;
            var is_working = false, playing = true, tick_play = true;
            var current = 1;
            var ease = 'swing', side = '', t = '';
            var ani = {};
            $this.append(first).prepend(last);
            $this.wrap('<div class="bxslider_container"></div>');
            $this.parent().wrap('<div class="' + o.wrapper_class + '"></div>');
            if (o.alignment == 'horizontal') {
                $this.children().css({
                    'float': 'left',
                    'listStyle': 'none',
                    'marginRight': o.margin
                });
                w = first.outerWidth(true);
                $this.css({
                    'width': '99999px',
                    'position': 'relative',
                    'left': -w
                });
                $this.parent().css({
                    'position': 'relative',
                    'overflow': 'hidden',
                    'width': w - o.margin
                });
            }
            else 
                if (o.alignment == 'vertical') {
                    $kids.each(function(){
                        if ($(this).height() > h) {
                            h = $(this).height();
                        }
                    });
                    w = first.outerWidth();
                    $this.children().css({
                        'height': h,
                        'listStyle': 'none',
                        'marginBottom': o.margin
                    });
                    $this.css({
                        'height': '99999px',
                        'width': w,
                        'position': 'relative',
                        'top': -(h + o.margin)
                    });
                    $this.parent().css({
                        'position': 'relative',
                        'overflow': 'hidden',
                        'height': h
                    })
                }
            if (o.pager && !o.ticker) {
                $this.parent().after('<div class="bx_pager"></div>');
                var $a;
                $kids.each(function(index){
                    $a = $('<a href="#">' + (index + 1) + '</a>');
                    $this.parent().siblings('.bx_pager').append($a);
                    $a.click(function(){
                        is_working = false;
                        tick_play = false;
                        $this.stop();
                        move_slide(index + 1);
                        current = index + 1;
                        if (o.auto) {
                            clearInterval(t);
                            $this.parent().siblings('.auto_controls').find('a').html(o.start_text);
                            playing = false;
                        }
                        else 
                            if (o.ticker) {
                                $this.parent().siblings('.ticker_controls').find('a').html(o.start_text);
                                playing = false;
                            }
                        return false;
                    });
                });
                set_active(1);
            }
            if (o.controls && !o.ticker) {
                if (o.next_image != '' || o.prev_image != '') {
                    $this.parent().after('<a class="prev" href="#"><img src="' + o.prev_image + '" /></a><a class="next" href="#"><img src="' + o.next_image + '" /></a>');
                }
                else {
                    $this.parent().after('<a class="prev" href="#">' + o.prev_text + '</a><a class="next" href="#">' + o.next_text + '</a>');
                }
                $this.parent().siblings('.next').click(function(){
                    if (!is_working) {
                        move_slide(++current);
                    }
                    if (o.auto) {
                        clearInterval(t);
                        $this.parent().siblings('.auto_controls').find('a').html(o.start_text);
                        playing = false;
                    }
                    return false;
                });
                $this.parent().siblings('.prev').click(function(){
                    if (!is_working) {
                        move_slide(--current);
                    }
                    if (o.auto) {
                        clearInterval(t);
                        $this.parent().siblings('.auto_controls').find('a').html(o.start_text);
                        playing = false;
                    }
                    return false;
                });
            }
            if (o.auto && !o.ticker) {
                t = setInterval(function(){
                    if (o.auto_direction == 'next') {
                        move_slide(++current);
                    }
                    else {
                        move_slide(--current);
                    }
                }, o.pause);
                if (o.auto_hover) {
                    $this.hover(function(){
                        clearInterval(t);
                    }, function(){
                        if (playing) {
                            t = setInterval(function(){
                                if (o.auto_direction == 'next') {
                                    move_slide(++current);
                                }
                                else {
                                    move_slide(--current);
                                }
                            }, o.pause);
                        }
                    });
                }
                if (o.auto_controls) {
                    $this.parent().after('<div class="auto_controls"><a class="auto_link" href="#">' + o.stop_text + '</a></div>');
                    $this.parent().siblings('.auto_controls').find('a').click(function(){
                        if (playing) {
                            clearInterval(t);
                            $(this).html(o.start_text);
                            playing = false;
                        }
                        else {
                            t = setInterval(function(){
                                if (o.auto_direction == 'next') {
                                    move_slide(++current);
                                }
                                else {
                                    move_slide(--current);
                                }
                            }, o.pause);
                            $(this).html(o.stop_text);
                            playing = true;
                        }
                        return false;
                    });
                }
            }
            if (o.ticker) {
                var tick_play = true;
                tick_slide();
                $this.hover(function(){
                    $this.stop();
                }, function(){
                    if (tick_play) {
                        tick_slide();
                    }
                });
                if (o.ticker_controls) {
                    $this.parent().after('<div class="ticker_controls"><a class="ticker_link" href="#">' + o.stop_text + '</a></div>');
                    $this.parent().siblings('.ticker_controls').find('a').click(function(){
                        if (tick_play) {
                            $this.stop();
                            $(this).html(o.start_text);
                            tick_play = false;
                        }
                        else {
                            is_working = false;
                            $(this).html(o.stop_text)
                            tick_slide();
                            tick_play = true;
                        }
                        return false;
                    });
                }
            }
            function tick_slide(){
                if (o.ticker_direction == 'next' && o.alignment == 'horizontal') {
                    $this.animate({
                        left: '-=5px'
                    }, o.speed / 5, 'linear', function(){
                        if (parseInt($this.css('left')) <= -((l + 1) * w)) {
                            $this.css('left', -w);
                        }
                        tick_slide();
                    });
                }
                else 
                    if (o.ticker_direction == 'prev' && o.alignment == 'horizontal') {
                        $this.animate({
                            left: '+=5px'
                        }, o.speed / 5, 'linear', function(){
                            if (parseInt($this.css('left')) >= -(w)) {
                                $this.css('left', -((l + 1) * w));
                            }
                            tick_slide();
                        });
                    }
                    else 
                        if (o.ticker_direction == 'next' && o.alignment == 'vertical') {
                            $this.animate({
                                top: '-=5px'
                            }, o.speed / 5, 'linear', function(){
                                if (parseInt($this.css('top')) <= -((l + 1) * (h + o.margin))) {
                                    $this.css('top', -(h + o.margin));
                                }
                                tick_slide();
                            });
                        }
                        else 
                            if (o.ticker_direction == 'prev' && o.alignment == 'vertical') {
                                $this.animate({
                                    top: '+=4px'
                                }, o.speed / 5, 'linear', function(){
                                    if (parseInt($this.css('top')) > -(h + o.margin)) {
                                        $this.css('top', -((l + 1) * (h + o.margin - 1)));
                                    }
                                    tick_slide();
                                });
                            }
            }
            function move_slide(num){
                if (o.ticker) {
                    ease = 'linear';
                }
                if (!is_working) {
                    if (o.alignment == 'horizontal') {
                        d = w;
                        side = 'left';
                    }
                    else 
                        if (o.alignment == 'vertical') {
                            d = h + o.margin;
                            side = 'top';
                        }
                    pos = num * d;
                    ani[side] = -pos;
                    is_working = true;
                    $this.animate(ani, o.speed, ease, function(){
                        is_working = false;
                        if (current > l) {
                            $this.css(side, -d);
                            current = 1;
                        }
                        else 
                            if (current < 1) {
                                $this.css(side, -(d * l));
                                current = l;
                            }
                        set_active(current);
                    });
                }
            }
            function set_active(num){
                if (o.pager) {
                    $('.bx_pager a').removeClass('active').eq(num - 1).addClass('active');
                }
            }
        });
    };
})(jQuery);