/* https://github.com/peledies/google-places */
(function($) {

    $.googlePlaces = function(element, options) {

        var defaults = {
            placeId: 'ChIJN1t_tDeuEmsRUsoyG83frY4' // placeId provided by google api documentation
            , render: ['reviews']
            , min_rating: 0
            , max_rows: 0
            , rotateTime: false
        };

        var plugin = this;

        plugin.settings = {}

        var $element = $(element),
            element = element;

        plugin.init = function() {
            plugin.settings = $.extend({}, defaults, options);
            $element.html("<div id='map-plug'></div>"); // create a plug for google to load data into
            initialize_place(function(place){
                plugin.place_data = place;
                // render specified sections
                if(plugin.settings.render.indexOf('reviews') > -1){
                    renderReviews(plugin.place_data.reviews);
                    if(!!plugin.settings.rotateTime) {
                        initRotation();
                    }
                }
            });
        }

        var initialize_place = function(c){
            var map = new google.maps.Map(document.getElementById('map-plug'));

            var request = {
                placeId: plugin.settings.placeId
            };

            var service = new google.maps.places.PlacesService(map);

            service.getDetails(request, function(place, status) {
                if (status == google.maps.places.PlacesServiceStatus.OK) {
                    c(place);
                }
            });
        }

        var sort_by_date = function(ray) {
            ray.sort(function(a, b){
                var keyA = new Date(a.time),
                    keyB = new Date(b.time);
                // Compare the 2 dates
                if(keyA < keyB) return -1;
                if(keyA > keyB) return 1;
                return 0;
            });
            return ray;
        }

        var filter_minimum_rating = function(reviews){
            for (var i = reviews.length -1; i >= 0; i--) {
                if(reviews[i].rating < plugin.settings.min_rating){
                    reviews.splice(i,1);
                }
            }
            return reviews;
        }

        var renderReviews = function(reviews){
            reviews = sort_by_date(reviews);
            reviews = filter_minimum_rating(reviews);
            var html = "";
            var row_count = (plugin.settings.max_rows > 0)? plugin.settings.max_rows - 1 : reviews.length - 1;
            // make sure the row_count is not greater than available records
            row_count = (row_count > reviews.length-1)? reviews.length -1 : row_count;
            for (var i = row_count; i >= 0; i--) {
                var stars = renderStars(reviews[i].rating);
                var date = convertTime(reviews[i].time);
                html = html+"<div class='review-item'><div class='review-meta'><span class='review-author'>"+reviews[i].author_name+"</span><span class='review-sep'>, </span><span class='review-date'>"+date+"</span></div>"+stars+"<p class='review-text'>"+reviews[i].text+"</p></div>"
            };
            $element.append(html);
        }

        var initRotation = function() {
            var $reviewEls = $element.children('.review-item');
            var currentIdx = $reviewEls.length > 0 ? 0 : false;
            $reviewEls.hide();
            if(currentIdx !== false) {
                $($reviewEls[currentIdx]).show();
                setInterval(function(){
                    if(++currentIdx >= $reviewEls.length) {
                        currentIdx = 0;
                    }
                    $reviewEls.hide();
                    $($reviewEls[currentIdx]).fadeIn('slow');
                }, plugin.settings.rotateTime);
            }
        }

        var renderStars = function(rating){
            var stars = "<div class='review-stars'><ul>";

            // fill in gold stars
            for (var i = 0; i < rating; i++) {
                stars = stars+"<li><i class='star'></i></li>";
            };

            // fill in empty stars
            if(rating < 5){
                for (var i = 0; i < (5 - rating); i++) {
                    stars = stars+"<li><i class='star inactive'></i></li>";
                };
            }
            stars = stars+"</ul></div>";
            return stars;
        }

        var convertTime = function(UNIX_timestamp){
            var a = new Date(UNIX_timestamp * 1000);
            var months = ['Sty','Lut','Mar','Kwi','Maj','Cze','Lip','Sie','Wrz','Paź','Lis','Gru'];
            var time = months[a.getMonth()] + ' ' + a.getDate() + ', ' + a.getFullYear();
            return time;
        }

        plugin.init();

    }

    $.fn.googlePlaces = function(options) {

        return this.each(function() {
            if (undefined == $(this).data('googlePlaces')) {
                var plugin = new $.googlePlaces(this, options);
                $(this).data('googlePlaces', plugin);
            }
        });

    }

})(jQuery);