(function () {
    'use strict';

    angular.module('common').factory('logger', ['$log', logger]);

    //service to log messages
    function logger($log) {
        var service = {
            getLogFn: getLogFn,
            log: log,
            logError: logError,
            logSuccess: logSuccess,
            logWarning: logWarning
        };

        return service;

        function getLogFn(moduleId, fnName) {
            fnName = fnName || 'log';
            switch (fnName.toLowerCase()) { // convert aliases
                case 'success':
                    fnName = 'logSuccess'; break;
                case 'error':
                    fnName = 'logError'; break;
                case 'warn':
                    fnName = 'logWarning'; break;
                case 'warning':
                    fnName = 'logWarning'; break;
            }

            var logFn = service[fnName] || service.log;
            return function (msg, data, showToast) {
                logFn(msg, data, moduleId, (showToast === undefined) ? true : showToast);
            };
        }

        function log(message, data, source, showToast) {
            logIt(message, data, source, showToast, 'info');
        }

        function logWarning(message, data, source, showToast) {
            logIt(message, data, source, showToast, 'warning');
        }

        function logSuccess(message, data, source, showToast) {
            logIt(message, data, source, showToast, 'success');
        }

        function logError(message, data, source, showToast) {
            logIt(message, data, source, showToast, 'error');
        }

        function logIt(message, data, source, showToast, toastType) {
            var successTerms = ['Success!', 'Hoorah!', 'Voila!', 'Hooray!', 'Woo-hoo!', 'Wahey!', 'Yippie!'];

            if (data && data.exception && isAcceptableException(data.exception))
                return;
            var write = (toastType === 'error') ? $log.error : $log.log;
            source = source ? '[' + source + '] ' : '';
            write(source, message, data);
            var f = ' <div id="alert-wrap in animated bounceInDown" class="toast-bottom-right" aria-live="polite" role="alert"><div class="alert-wrap in animated jellyIn"><div class="alert alert-success" role="alert"><button class="close" type="button"><i class="fa fa-times-circle"></i></button><div class="media"><div class="media-body">';
            var r = '</p></div></div></div></div></div>';

            var getTitle = function (title) {
                return '<h4 class="alert-title text-semibold" style="margin-bottom:5px;">' + title + '</h4><p class="mar-no">';
            }

            if (showToast) {
                if (toastType === 'error' && message.indexOf('$location:ihshprfx') === -1)
                    toastr.error(f + getTitle('Oops, something went wrong...') + r);
                else if (toastType === 'warning')
                    toastr.warning(f + getTitle('Warning') + message + r);
                else if (toastType === 'success')
                    toastr.success(f + getTitle(successTerms[Math.floor((Math.random() * successTerms.length))]) + message + r);
                else if (toastr.options.debug)
                    toastr.info(f + message + r);
            }
        }
        //some errors happen in IE and have no side effect on the app - we can hide those from the log
        function isAcceptableException(exception) {
            if (exception.codeName && exception.codeName === 'INDEX_SIZE_ERR') //cannot work out why this error happens in IE, it doesn't have any side effects so hide the error
                return true;
            if (exception.message && exception.message === 'Invalid argument.')
                return true;
            return false;
        }




    }
})();