var RankersWidgets = {
    version: 2.0,
    global_obj_reference: 'RankersWidgetsObjectName',
    widget_frame_url: 'https://www.rankers.co.nz/widgets/frame',
    obj_name: 'RankersWidgets',

    insert: function(id, target) {
        RankersWidgets.insert_widget(RankersWidgets.widget_frame_url, id, target);
    },
    insert_doc_badge: function(doc_page_id, target) {
        var frame_url = 'https://www.rankers.co.nz/widgets/doc_frame';
        RankersWidgets.insert_widget(frame_url, doc_page_id, target);
    },
    insert_widget: function(url, id, target) {
        // target can be changed but will take some time to update due to caching on the server.
        if (typeof target == "string") {
            var target_el = document.getElementById(target);
            if (target_el != null && id != null) {
                var frame_url = url + "/" + id + ".js?target=" + encodeURIComponent(target);
                RankersUtils.require(frame_url);
            }
        }
    }
};

var RankersUtils = {
    referrer: function(){ return window.location.href },
    require: function(url) { // Load an external js dependency
        var script = document.createElement('script');
        script.src = url;
        document.getElementsByTagName('head')[0].appendChild(script);
    }
};


(function(){

    function executeRankersWidgetsMethodByName(method_name, context /*, args */) {
        try {
            var obj_name = RankersWidgets.obj_name;
            var args = Array.prototype.slice.call(arguments, 2)[0];
            return context[obj_name][method_name].apply(context, args);
        } catch(e) {
            console.warn('Error calling function "' + method_name + '" on context[\'' + obj_name + '\'] object "' + context[obj_name] + '": ' + e);
        }
    }

    var w = arguments[0];
    var obj_name = w[RankersWidgets.global_obj_reference];
    if (typeof obj_name == 'undefined' || obj_name == null){ return; }
    var calls = w[obj_name].calls_array || [];

    // TODO continuously monitor calls for new items added on the clientside.
    for (i = 0; i < calls.length; i++) {
        try {
            var functionName = calls[i][0];
            var args = Array.prototype.slice.call(calls[i],1);
            executeRankersWidgetsMethodByName(functionName, w, args);
        } catch(exception) {
            console.warn(exception);
        }
    }

})(window);

// Include any widget JS Dependencies



// @deprecated
// The rankers object below is no longer supported and is only included here for backwards compatibility with existing widget code in the wild.
var rankers = {
    version: 1.0,
    widget_frame_url: 'https://www.rankers.co.nz/widgets/frame',

    experience_badge_widget: function(target, widget_id, href, width, height) {
        this.insert_widget(target, widget_id, width, height);
    },
    experience_rating_widget: function(target, widget_id, href, width, height) {
        this.insert_widget(target, widget_id, width, height);
    },
    industry_experience_widget: function(target, widget_id, href, width, height) {
        this.insert_widget(target, widget_id, width, height);
    },
    industry_review_widget: function(target, widget_id, href, width, height) {
        this.insert_widget(target, widget_id, width, height);
    },
    industry_tips_widget: function(target, widget_id, href, width, height) {
        this.insert_widget(target, widget_id, width, height);
    },

    insert_widget: function(target, widget_id, width, height) {
        // width and height are currently ignored, instead resize the widget by editing it on rankers.co.nz
        // target can be changed but will take some time to update due to caching on the server.
        if (typeof target == "string") {
            var target_el = document.getElementById(target);
            if (target_el != null && widget_id != null) {
                var url = rankers.widget_frame_url + widget_id + ".js?target=" + encodeURIComponent(target);
                RankersUtils.require(url);
            }
        }
    },
    referrer: RankersUtils.referrer
};