var $ = require('jquery');
var Messenger = require('messenger');

module.exports = (function(){
    'use strict';
    window.alert = function(message){
        new Messenger().post(message);
    };
    var addError = function(message){
        $('#errors').append('<div>' + message + '</div>');
    };
    window.onerror = function(msg, url, line){
        try {
            var a = document.createElement('a');
            a.href = url;
            var filename = a.pathname.split('/').pop();
            if(filename.toLowerCase() === 'markupview.jsm' || filename.toLowerCase() === 'markup-view.js') {
                return false;
            }
            var messageText = filename + ' : ' + line + '</br>' + msg;
            var message = {
                message         : messageText,
                type            : 'error',
                hideAfter       : 1000,
                showCloseButton : true
            };
            new Messenger().post(message);
            addError(message.message);
        }
        catch (error) {
            console.log('An error occurred while reporting error. ' + error);
            console.log(msg);
            new Messenger().post('Couldn\'t report JS error.  ' + msg);
        }
        return false;
    };
    $(document).ajaxError(function(event, xmlHttpRequest, ajaxOptions){
        if(xmlHttpRequest.status >= 200 && xmlHttpRequest.status <= 300) {
            return undefined;
        }
        if(xmlHttpRequest.statusText === 'abort') {
            return undefined;
        }
        var message = {
            type            : 'error',
            hideAfter       : 1000,
            showCloseButton : true
        };
        if(xmlHttpRequest.status === 0 && xmlHttpRequest.readyState === 0) {
            return false;
        }
        if(xmlHttpRequest.status === 400 && ajaxOptions.isValidatedCall) {
            return false;
        }
        if(xmlHttpRequest.status === 503) {
            message.message = xmlHttpRequest.responseJSON.message;
        }
        if(xmlHttpRequest.status === 409) {
            message.message = xmlHttpRequest.responseJSON.message;
        }
        else {
            message.message = '[{0}] {1} : {2}'.format(ajaxOptions.type, xmlHttpRequest.statusText, ajaxOptions.url);
        }
        new Messenger().post(message);
        addError(message.message);
        return false;
    });
}).call(this);