package com.dy.pipIrrRemote.monitor;

import com.alibaba.fastjson2.JSONObject;
import com.dy.common.aop.SsoAop;
import com.dy.common.mw.protocol.Command;
import com.dy.common.util.IDLongGenerator;
import com.dy.common.util.NumUtil;
import com.dy.common.webUtil.BaseResponse;
import com.dy.common.webUtil.BaseResponseUtils;
import com.dy.pipIrrGlobal.command.ComResultWait;
import com.dy.pipIrrGlobal.pojoPr.PrController;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.http.MediaType;
import org.springframework.validation.BindingResult;
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 org.springframework.web.client.RestTemplate;

import java.util.Objects;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;

/**
 * @Author: liurunyu
 * @Date: 2025/4/30 16:08
 * @Description
 */

@Slf4j
@Tag(name = "远程透传命令", description = "远程透传命令")
@RestController
@RequestMapping(path = "comTrans")
@RequiredArgsConstructor
public class ComTransCtrl {

    @Autowired
    private Environment env ;

    @Autowired
    private RestTemplate restTemplate ;

    @Value("${mw.waitMwRtnResultTimeout}")
    private int waitMwRtnResultTimeout ;

    @Value("${mw.rtuCallbackUrl_rm}")
    private String rtuResultSendWebUrl;

    @Autowired
    private ComTransSv comSv;

    /**
     * 向设备（控制器）发送透传命令
     * @param dto 前端发来的值对象
     * @param bindingResult 对dto验证的结果
     * @return 返回前端
     */
    @PostMapping(path = "send", consumes = MediaType.APPLICATION_JSON_VALUE)
    @SsoAop()
    public BaseResponse<Object> send(@RequestBody @Valid ComTransDto dto, BindingResult bindingResult) {
        if (bindingResult != null && bindingResult.hasErrors()) {
            return BaseResponseUtils.buildError(Objects.requireNonNull(bindingResult.getFieldError()).getDefaultMessage());
        }
        String msg = this.checkDto(dto) ;
        if(msg != null){
            return BaseResponseUtils.buildError(msg) ;
        }
        //得到控制器对象
        PrController ctrlPo = comSv.getRtu(dto.getIntakeId());
        if (ctrlPo == null) {
            return BaseResponseUtils.buildError("从数据库中未得到控制器数据") ;
        }
        //检查协议
        msg = comSv.checkProtocol(ctrlPo) ;
        if(msg != null) {
            return BaseResponseUtils.buildError(msg) ;
        }
        //得到功能码对应的命令名称
        String comName = comSv.getCommandName(dto.comCode, ctrlPo) ;
        if(comName == null) {
            return BaseResponseUtils.buildError("未得到功能码对应命令名称") ;
        }
        Long comId = new IDLongGenerator().generate();
        String comData = dto.comData.toUpperCase() ;
        //生成并保存命令日志
        comSv.saveComHistoryPo(comId, ctrlPo.getProtocol(), dto.comCode, "透传（" + comName + "）",
                dto.getIntakeId(), ctrlPo.getRtuAddr(), new ComTransParam(dto.comCode, comData), dto.getOperator());
        try{
            CompletableFuture<JSONObject> feature = new CompletableFuture<>();
            ComResultWait.put(comId, feature);
            //创建外部透传命令（发给控制器）
            Command com = comSv.createOuterTransparentCommand("" + comId, dto.comCode);
            com.rtuAddr = ctrlPo.getRtuAddr() ;
            com.attachment = comData ;
            com.rtuResultSendWebUrl = rtuResultSendWebUrl;
            //得到通信中间件发送命令的web URL
            String rqUrl = comSv.get2MwRequestUrl(this.env, comSv.ContextComSend) ;
            //向通信中间件发送web请求
            BaseResponse res = comSv.sendPostRequest2Mw(restTemplate, rqUrl, com) ;
            //处理通信中间件对web请求的响应
            msg = comSv.dealMwDealResponse(res) ;
            if(msg != null) {
                return BaseResponseUtils.buildError(msg) ;
            }else{
                try{
                    //等待通信中间件通知控制器执行命令上行数据（命令结果）
                    JSONObject resultData = feature.get(waitMwRtnResultTimeout, TimeUnit.SECONDS);
                    Long commandId = resultData.getLong("commandId");
                    if (commandId.equals(comId)) {
                        return BaseResponseUtils.buildSuccess(resultData);
                    } else {
                        return BaseResponseUtils.buildSuccess("控制器执行命令成功");
                    }
                }catch (Exception e){
                    return BaseResponseUtils.buildFail("等待通信中间件通知命令结果超时或异常");
                }
            }
        }catch (Exception e){
            return BaseResponseUtils.buildFail("服务端构造并向通信中间件发送请求时异常" + (e.getMessage() == null?"":e.getMessage())) ;
        }finally {
            try {
                //最后清除CompletableFuture缓存
                ComResultWait.remove(comId);
            }catch (Exception ee){}
        }
    }

    /**
     * 验证
     * @param dto
     * @return
     */
    private String checkDto(ComTransDto dto){
        if(!NumUtil.isHex(dto.comCode)){
            return "命令功能码不是十六进制数";
        }
        if(!NumUtil.isHex(dto.comData)){
            return "命令数据不是十六进制数";
        }
        if(dto.comData.length() % 2 != 0){
            return "命令数据不完备（长度不是偶数）";
        }
        if(!dto.comData.contains(dto.comCode)){
            return "命令数据中不包含功能码";
        }
        return null ;
    }

}