package com.mh.user.controller;

import com.mh.common.http.HttpResult;
import com.mh.user.job.S7PlcCollectionJob;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

/**
 * S7 PLC控制接口
 * 提供手动读写PLC点位的功能
 * 
 * @author System
 * @date 2026-06-23
 */
@Slf4j
@RestController
@RequestMapping("/s7plc")
public class S7PlcController {

    private final S7PlcCollectionJob s7PlcCollectionJob;

    public S7PlcController(S7PlcCollectionJob s7PlcCollectionJob) {
        this.s7PlcCollectionJob = s7PlcCollectionJob;
    }

    /**
     * 手动写入数据到PLC
     * 
     * @param cpmId 采集参数ID
     * @param value 要写入的值
     * @return 操作结果
     */
    @PostMapping("/write")
    public HttpResult writeData(@RequestParam Long cpmId, @RequestParam Object value) {
        try {
            log.info("收到手动写入请求: cpmId={}, value={}", cpmId, value);
            
            boolean success = s7PlcCollectionJob.writeData(cpmId, value);
            
            if (success) {
                return HttpResult.ok("写入成功");
            } else {
                return HttpResult.error(500, "写入失败");
            }
        } catch (Exception e) {
            log.error("手动写入异常: cpmId={}", cpmId, e);
            return HttpResult.error(500, "写入异常: " + e.getMessage());
        }
    }

    /**
     * 清理S7连接器缓存
     * 用于重启连接或维护
     * 
     * @return 操作结果
     */
    @PostMapping("/clearCache")
    public HttpResult clearCache() {
        try {
            log.info("收到清理S7连接器缓存请求");
            s7PlcCollectionJob.clearConnectorCache();
            return HttpResult.ok("缓存清理成功");
        } catch (Exception e) {
            log.error("清理缓存异常", e);
            return HttpResult.error(500, "清理缓存异常: " + e.getMessage());
        }
    }
}