package com.iot.modbus_rtcp.controller;

import com.iot.modbus_rtcp.dto.CommandTypeComparable;
import com.iot.modbus_rtcp.dto.ModbusCommandDto;
import com.iot.modbus_rtcp.netty.NettyServer;
import com.iot.modbus_rtcp.utils.CRCUtil;
import com.iot.modbus_rtcp.utils.HexUtil;
import com.iot.modbus_rtcp.vo.Response;
import jakarta.annotation.PreDestroy;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * Modbus-TCP协议API
 * 通信方式采用TCP的方式
 */
@Slf4j
@RestController
@RequestMapping("modbus-tcp")
public class ModbusTCPController implements ApplicationRunner {
    private NettyServer nettyServer;

    @PreDestroy
    private void destroy() {
        this.nettyServer.stop();
    }

    /**
     * 采集命令API
     * 采集命令API使用异步访问的方式，设备响应数据后会将其推送到Kafka
     *
     * @param modbusCommandBoList
     * @return
     */
    @PostMapping("/collect")
    public Response<String> collect(@RequestBody List<ModbusCommandDto> modbusCommandBoList) {
        log.debug("采集请求：{}", modbusCommandBoList);

        try {
            modbusCommandBoList.stream().forEach(modbusCommandBo -> {
                modbusCommandBo.setCommand(modbusCommandBo.getCommand() + CRCUtil.getCRC(HexUtil.HexStringToBytes(modbusCommandBo.getCommand())));

                modbusCommandBo.setType(CommandTypeComparable.CommandType.COLLECTION);
                modbusCommandBo.setTimestamp(System.nanoTime());
            });

            this.nettyServer.sender().send(modbusCommandBoList);
        } catch (Exception e) {
            log.error("", e);
            return Response.failed(e.getMessage());
        }

        return Response.succeed();
    }

    /**
     * 控制命令API
     * 控制命令API使用异步访问的方式，设备响应数据自动丢弃
     *
     * @param modbusCommandBoList
     * @return 设备响应返回
     */
    @PostMapping("/control")
    public Response<String> control(@RequestBody List<ModbusCommandDto> modbusCommandBoList) {
        log.debug("控制请求：{}", modbusCommandBoList);

        try {
            modbusCommandBoList.stream().forEach(modbusCommandBo -> {
                modbusCommandBo.setCommand(modbusCommandBo.getCommand() + CRCUtil.getCRC(HexUtil.HexStringToBytes(modbusCommandBo.getCommand())));

                modbusCommandBo.setType(CommandTypeComparable.CommandType.CONTROL);
                modbusCommandBo.setTimestamp(System.nanoTime());
            });

            this.nettyServer.sender().send(modbusCommandBoList);
        } catch (Exception e) {
            log.error("", e);
            return Response.failed(e.getMessage());
        }

        return Response.succeed();
    }

    @Override
    public void run(ApplicationArguments args) throws Exception {
        this.nettyServer = new NettyServer(502, 10);
        this.nettyServer.start();
    }

}