/*
 state
*/
var appState = {
    defaultTime: 120,//默认2分钟倒计时
    countDownTime_timer: null,//支付倒计时
    codeNullTip: "微信授权失败，请您尝试重新扫码 !",//code获取失败提示语
    expandField_1: null,//扩展字段1-备用
    expandObj_1: null,//扩展字段1-备用
}

/*自定义异步请求*/
function ajax() {
    var ajaxData = {
        type: (arguments[0].type || "GET").toUpperCase(),
        url: arguments[0].url || "",
        async: arguments[0].async || "true",
        data: arguments[0].data || null,
        dataType: arguments[0].dataType || "json",
        contentType: arguments[0].contentType || "application/json; charset=utf-8",
        beforeSend: arguments[0].beforeSend || function () { },
        success: arguments[0].success || function () { },
        error: arguments[0].error || function () { }
    }

    ajaxData.beforeSend()
    var xhr = createxmlHttpRequest();
    xhr.responseType = ajaxData.dataType;

    xhr.open(ajaxData.type, ajaxData.url, ajaxData.async);
    xhr.setRequestHeader("Content-Type", ajaxData.contentType);
    xhr.send(convertData(ajaxData.data));

    xhr.onreadystatechange = function () {
        if (xhr.readyState == 4) {
            if (xhr.status == 200) {
                ajaxData.success(xhr.response)
            } else {
                ajaxData.error()
            }
        }
    }
}

function createxmlHttpRequest() {
    if (window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
    } else if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
    }
}

function convertData(data) {
    if (typeof data === 'object') {
        var convertResult = "";
        for (var c in data) {
            convertResult += c + "=" + data[c] + "&";
        }
        convertResult = convertResult.substring(0, convertResult.length - 1)
        return convertResult;
    } else {
        return data;
    }
}
////////////////////////////////demo
//ajax({
//    type: "POST",
//    url: "ajax.php",
//    dataType: "json",
//    data: {
//        "name": "abc",
//        "age": 123,
//        "id": "456"
//    },
//    beforeSend: function () {
//        //some js code 
//    },
//    success: function (msg) {
//        console.log(msg)
//    },
//    error: function () {
//        console.log("error")
//    }
//})
/*******common*********/
/*统一请求接口*/
function postRequest(url,params,successCallback, errorCallback) {
    ajax({
        type: "POST",
        url: url,
        dataType: "json",
        data: JSON.stringify(params),
        beforeSend: function () {
            //some js code 
        },
        success: function (msg) {
            successCallback(msg);
            //var res = msg;
            //if (res.code == 0) {//进场

            //} else {//其他情况如【该卡号场内已存在】
            //    console.log(res.message);
            //}
        },
        error: function (err) {
            errorCallback(err);
            //console.log("网络地址出错...")
        }
    })
}

/*获取URL？参数*/
function getQueryString(location) {
    //var url = location.search; //获取url中"?"符后的字串  
    var url = location.search;
    var theRequest = new Object();
    if (url.indexOf("?") != -1) {
        var str = url.substr(1);
        strs = str.split("&");
        for (var i = 0; i < strs.length; i++) {
            theRequest[strs[i].split("=")[0]] = decodeURIComponent(strs[i].split("=")[1]);
        }
    } else {
        theRequest = null;
    }
    return theRequest;
}

/*统一提示信息*/
window.alertMsg = function (txt) {
    var alertFram = document.createElement("DIV");
    alertFram.id = "alertFram";
    alertFram.style.position = "fixed";
    alertFram.style.width = "100%";
    alertFram.style.textAlign = "center";
    alertFram.style.top = "40%";
    alertFram.style.zIndex = "10001";
    strHtml = " <span style=\"font-family: 微软雅黑;display:inline-block;background:#333;color:#fff;padding:0 20px;line-height:36px;border-radius:6px; \">" + txt + "</span>";
    alertFram.innerHTML = strHtml;
    document.body.appendChild(alertFram);
    setTimeout((function () {
        alertFram.style.display = "none";
    }), 2500);
};

//四舍五入保留2位小数（不够位数，则用0替补）
function keepTwoDecimalFull(num) {
    var result = parseFloat(num);
    if (isNaN(result)) {
        alert('传递参数错误，请检查！');
        return false;
    }
    result = Math.round(num * 100) / 100;
    var s_x = result.toString();
    var pos_decimal = s_x.indexOf('.');
    if (pos_decimal < 0) {
        pos_decimal = s_x.length;
        s_x += '.';
    }
    while (s_x.length <= pos_decimal + 2) {
        s_x += '0';
    }
    return s_x;
}

/** 
 * param 将要转为URL参数字符串的对象 
 * key URL参数字符串的前缀 
 * encode true/false 是否进行URL编码,默认为true 
 *  
 * return URL参数字符串 
 */
var parseParams = function (data) {
    try {
        var tempArr = [];
        for (var i in data) {
            var key = (i);
            var value = encodeURIComponent(data[i]);//decodeURIComponent 
            tempArr.push(key + '=' + value);
        }
        var urlParamsStr = tempArr.join('&');
        return urlParamsStr;
    } catch (err) {
        return '';
    }
};


/*获取对象*/
function getObjectByID(id) {
    return document.getElementById(id);
}


/*秒转时分*/
function formatSeconds(value) {
    var secondTime = parseInt(value);// 秒
    var minuteTime = 0;// 分
    var hourTime = 0;// 小时
    if (secondTime > 60) {//如果秒数大于60，将秒数转换成整数
        //获取分钟，除以60取整数，得到整数分钟
        minuteTime = parseInt(secondTime / 60);
        //获取秒数，秒数取佘，得到整数秒数
        secondTime = parseInt(secondTime % 60);
        //如果分钟大于60，将分钟转换成小时
        if (minuteTime > 60) {
            //获取小时，获取分钟除以60，得到整数小时
            hourTime = parseInt(minuteTime / 60);
            //获取小时后取佘的分，获取分钟除以60取佘的分
            minuteTime = parseInt(minuteTime % 60);
        }
    }
    var result = "" + parseInt(secondTime) + "秒";

    if (minuteTime > 0) {
        result = "" + parseInt(minuteTime) + "分" + result;
    }
    if (hourTime > 0) {
        result = "" + parseInt(hourTime) + "小时" + result;
    }
    return result;
}

/*只能输入数字加字母*/
function checkCharAndNumber(ev) {
    //this.value = this.value.toUpperCase();
    var tmpValue = this.value.replace(/[^\d|chun]/g, '');
    this.value = this.value.toUpperCase();
}

/*检测当前app浏览器*/
function clientBrowserEx() {
    var state = "other";//default
    if (/MicroMessenger/.test(window.navigator.userAgent)) {
        console.log("微信客户端");
        //this.switchShow("wxPay");
        state = "wxPay";
    } else if (/AlipayClient/.test(window.navigator.userAgent)) {
        console.log("支付宝客户端");
        //this.switchShow("aliPay");
        state = "aliPay";
    } else {
        console.log("其他浏览器");
        state = "other";
    }
    return state;
}


/*支付倒计时 @id*/
function countDownTime(id) {
    $obj = getObjectByID(id);
    getObjectByID("headTip").style.display = "block";
    var count = appState.defaultTime;
    appState.countDownTime_timer = setInterval(function () {
        if (count==0) {
            clearInterval(appState.countDownTime_timer);
            appState.countDownTime_timer = null;
            $obj.innerHTML = count + "秒";
            //删除code后刷新
            window.location.href = funcUrlDel("code");
        } else {
            --count;
            $obj.innerHTML = count + "秒";
        }
    }, 1000);
}

/*删除url中某个参数*/
function funcUrlDel(name) {
    var loca = window.location;
    var baseUrl = loca.origin + loca.pathname + "?";
    var query = loca.search.substr(1);
    if (query.indexOf(name) > -1) {
        var obj = {}
        var arr = query.split("&");
        for (var i = 0; i < arr.length; i++) {
            arr[i] = arr[i].split("=");
            obj[arr[i][0]] = arr[i][1];
        };
        delete obj[name];
        var url = baseUrl + JSON.stringify(obj).replace(/[\"\{\}]/g, "").replace(/\:/g, "=").replace(/\,/g, "&");
        return url
    } else {
        return loca.href;
    }
}