/**
 * 
 * @authors bert (bertmaosong@gmail.com)
 * @date    2019-06-04 14:35:03
 * @version 1.0
 */
var catchErr = (function() {
    var catchErr = function() {
        return new catchErr.fn.init();
    }
    catchErr.fn = catchErr.prototype = {
        constructor: catchErr,
        init: function() {
            this.noSendErrs = [];
            this.allErrs = [];
            this.listen = function() {
                var tthis = this;
                try {
                    window.addEventListener('error', function(e){
                        var obj = {
                            category: 'pc_error_statistics',
                            action: 'page(' + window.location.pathname + ')',
                            label: ''
                        };
                        if(e.srcElement === window) {
                            obj.label = 'Source(' + e.filename + ')' + '_Line(' + e.lineno + ')' + '_Column(' + e.colno + ')' + '_Error(' + e.message + ')';
                        } else {
                            obj.label = 'Source(' + e.srcElement.src + ')' + '_Line()' + '_Column()' + '_Error(load fail)';
                        }
                        if(tthis.checkExist(obj, tthis.allErrs)) {
                            return;
                        } else {
                            tthis.allErrs.push(obj);
                            tthis.sendInfo(obj)
                        }
                    }, true);
                } catch(error) {
                    console.log(error)
                }
            };
            this.sendInfo = function (obj) {
                try {
                    if(typeof(ga) != 'undefined') {
                        ga('send', 'event', obj.category, obj.action, obj.label , {
                            'dimension1': 'null'
                        });
                    } else {
                        !this.checkExist(obj, this.noSendErrs) ? this.noSendErrs.push(obj) : '';
                        this.reSendInfo();
                    }
                } catch(error) {
                    console.log(error)
                }
            };
            this.reSendInfo = function() {
                var tthis = this;
                setTimeout(function(){
                    if(tthis.noSendErrs.length > 0) {
                        if(typeof(ga) != 'undefined') {
                            for (var i=0; i < tthis.noSendErrs.length; i++ ) {
                                tthis.sendInfo (tthis.noSendErrs[i]);
                            }
                            tthis.noSendErrs = [];
                        } else {
                            tthis.reSendInfo();
                        }   
                    }
                }, 5000)
            }
            this.checkExist = function(obj, arr) {
                var bool = false;
                for (var i=0; i < arr.length; i++ ) {
                    if( arr[i].category == obj.category && arr[i].action == obj.action && arr[i].label == obj.label ) {
                        bool = true;
                        break;
                    }
                }
                return bool;
            }
        }
    }
    catchErr.fn.init.prototype = catchErr.fn;
    return catchErr;
})();
var msCatchErr = catchErr()
msCatchErr.listen();