const net = require('net');

module.exports = (app) => {
    const { middleware } = app;
    const shunt = middleware.shunt;

    net.createServer(function (socket) {
        socket.on('lookup', function (data) {
            console.log(data);
            console.log('lookup')
        });
        socket.on('connection', function (data) {
            console.log(data);
            console.log('socket客户端已连接');
        });
        socket.on('data', async function (data) {
            let value = data.toString('hex');
            console.log(value);
            let response = "000000068100";
            socket.write(Buffer.from(response, 'hex'));
            // 00000043010000000000000000000000000000000000000000 18 31353037365f32303236303330333135313835315f323832 00 0f 0102030405060708090a0b0c0d0e0f
            let sn_value = value.slice(52, 100),
            snBuffer = Buffer.from(sn_value, 'hex'),
            snNumber = snBuffer.toString('ascii').split("_")[0],
            msg_value = value.slice(104, value.length),
            msgBuffer = Buffer.from(msg_value, 'hex'),
            msgData = msgBuffer.toString('ascii');
            console.log(msgData)
            // socket接收消息后触发事件监听器，将消息发送给websocket客户端并存储在数据库中
            shunt.socketEmitter().emit(snNumber, { msg_data: msgData, created_at: new Date() });
            await app.curl('http://127.0.0.1:' + app.server.address().port + '/shortMsg', {
                dataType: 'json',
                contentType: 'application/x-www-form-urlencoded',
                method: 'POST',
                timeout: 3000,
                data: {
                    sn_number: snNumber,
                    original_msg: value,
                    msg_data: msgData,
                    created_at: new Date()
                },
            });
        });
        socket.on('end', function (data) {
            console.log(data);
            console.log('end');
        });
        socket.on('timeout', function (data) {
            console.log(data);
            console.log('空闲超时');
        });
        socket.on('drain', function (data) {
            console.log(data);
            console.log('写缓存为空');
        });
        socket.on('error', function (data) {
            console.log(data);
            console.log('发生错误');
        });
        socket.on('close', function (data) {
            console.log(data);
            console.log('socket客户端已断开连接');
        });
        socket.pipe(socket);
    }).listen(8100, function () {
        console.log('socket服务器已启动，监听端口：8100');
    });
}