var ws;
var wsUrl = 'ws://localhost:2012';//打印后台地址与
var isWx = true;
function connection() {
    if ('WebSocket' in window) {
        ws = new WebSocket(wsUrl);
    }
    else if ('MozWebSocket' in window) {
        ws = new MozWebSocket(wsUrl);
    } else {
        alert('当前浏览器不支持');

    }

    //注册各类回调
    ws.onopen = function () {
        // alert('连接打印后台成功');
        isWx = true
    }

    ws.onclose = function () {
        // alert('与打印后台断开连接');
        isWx = false
    }
    ws.onerror = function () {
        alert('数据传输发生错误');
        isWx = false
    }
    ws.onmessage = function (receiveMsg) {
        if (receiveMsg.data.split("|")[0] == "A_GetPrinterStatus") {

            var ret = receiveMsg.data.split("|")[1];
            if (ret == 0) {
                document.getElementById("status").value = "无返回值";
                return;
            }
            else if (ret == 1) {
                document.getElementById("status").value = "打印机命令解析器忙碌中！";
                return;
            }
            else if (ret == 2) {
                document.getElementById("status").value = "2 纸张用完或安装错误！";          //纸张用完或安装错误！
                return;
            }
            else if (ret == 4) {
                document.getElementById("status").value = "4 碳带用完或安装错误！";                       //碳带用完或安装错误！";
                return;
            }
            else if (ret == 8) {
                document.getElementById("status").value = "8 打印批次文档中！";           //打印批次文档中！";
                return;
            }
            else if (ret == 16) {
                document.getElementById("status").value = "16 正在打印文件！";                 //正在打印文件！
                return;
            }
            else if (ret == 32) {
                document.getElementById("status").value = "32 打印机暂停！";                 //打印机暂停！
                return;
            }
            else if (ret == 64) {
                document.getElementById("status").value = "64 正在送出标签纸！";                 //正在送出标签纸！
                return;
            }
            else if (ret == 9) {
                document.getElementById("status").value = "9 打印机待机中！";                 //打印机待机中！
                return;
            }

        }
    }
}
function sendMessage(data) {
    //尝试向打印后台发送消息
    if (!isWx) return;
    ws.send('A_EnumUSB');
    ws.send('A_CreateUSBPort|1');
    ws.send('A_Prn_Text_TrueType|5|0|35|宋体|1|600|0|0|0|AA|' + data.code_num + '|1');
    ws.send('A_Prn_Text_TrueType|5|20|34|宋体|1|900|0|800|0|BB|' + data.shopName + '|1');
    ws.send('A_Prn_Text_TrueType|5|40|28|宋体|1|600|0|0|0|DD|' + data.username + '|1');
    ws.send('A_Prn_Text_TrueType|5|60|24|宋体|1|600|0|0|0|HH|' + data.appendix + '|1');
    ws.send('A_Prn_Text_TrueType|5|80|28|宋体|1|600|0|0|0|CC|' + data.color + ' ' + '共' + data.total_count + '件|1');
    ws.send('A_Prn_Text_TrueType|5|100|28|宋体|1|600|0|0|0|EE|' + data.name + '|1');
    ws.send('A_Prn_Text_TrueType|5|120|24|宋体|1|600|0|0|0|FF|' + data.shop_order_no + '|1');

    ws.send('A_Prn_Barcode|110|134|2|o|2|3|60|B|1|' + data.code_num + '');
    ws.send('A_Prn_Text_TrueType|170|30|32|宋体|4|600|0|0|0|GG|' + data.telnum + '|1');
    ws.send('A_Print_Out|1|1|1|1');
    ws.send('A_ClosePrn');
}

// function getStatus() {
//     ws.send('A_EnumUSB');
//     ws.send('A_CreateUSBPort|1');
//     ws.send('A_GetPrinterStatus');
//     ws.send('A_ClosePrn');
// }
export default {
    sendMessage: sendMessage,
    connection: connection
}