package cn.iocoder.yudao.module.mes.controller.admin.safety;

import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.mes.controller.admin.safety.vo.risk.MesSafetyRiskPageReqVO;
import cn.iocoder.yudao.module.mes.controller.admin.safety.vo.risk.MesSafetyRiskRespVO;
import cn.iocoder.yudao.module.mes.controller.admin.safety.vo.risk.MesSafetyRiskSaveReqVO;
import cn.iocoder.yudao.module.mes.dal.dataobject.md.workstation.MesMdWorkshopDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.safety.MesSafetyRiskDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.safety.MesSafetyRiskUnitDO;
import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkshopMapper;
import cn.iocoder.yudao.module.mes.service.safety.MesSafetyRiskService;
import cn.iocoder.yudao.module.mes.service.safety.MesSafetyRiskUnitService;
import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.*;
import java.util.stream.Collectors;

import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;

/**
 * 安全生产 - 风险清单 Controller
 *
 * @author 超级管理员
 */
@Tag(name = "管理后台 - 安全生产-风险清单")
@RestController
@RequestMapping("/mes/safety/risk")
@Validated
public class MesSafetyRiskController {

    @Resource
    private MesSafetyRiskService riskService;

    @Resource
    private MesSafetyRiskUnitService riskUnitService;

    @Resource
    private MesMdWorkshopMapper workshopMapper;

    @Resource
    private AdminUserApi adminUserApi;

    @PostMapping("/create")
    @Operation(summary = "创建风险清单")
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:create')")
    public CommonResult<Long> createRisk(@Valid @RequestBody MesSafetyRiskSaveReqVO createReqVO) {
        return success(riskService.createRisk(createReqVO));
    }

    @PutMapping("/update")
    @Operation(summary = "更新风险清单")
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:update')")
    public CommonResult<Boolean> updateRisk(@Valid @RequestBody MesSafetyRiskSaveReqVO updateReqVO) {
        riskService.updateRisk(updateReqVO);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除风险清单")
    @Parameter(name = "id", description = "编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:delete')")
    public CommonResult<Boolean> deleteRisk(@RequestParam("id") Long id) {
        riskService.deleteRisk(id);
        return success(true);
    }

    @GetMapping("/get")
    @Operation(summary = "获得风险清单")
    @Parameter(name = "id", description = "编号", required = true, example = "1024")
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:query')")
    public CommonResult<MesSafetyRiskRespVO> getRisk(@RequestParam("id") Long id) {
        MesSafetyRiskDO risk = riskService.getRisk(id);
        if (risk == null) {
            return success(null);
        }
        List<MesSafetyRiskRespVO> list = buildRespList(Collections.singletonList(risk));
        return success(list.isEmpty() ? null : list.get(0));
    }

    @GetMapping("/page")
    @Operation(summary = "获得风险清单分页")
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:query')")
    public CommonResult<PageResult<MesSafetyRiskRespVO>> getRiskPage(@Valid MesSafetyRiskPageReqVO pageReqVO) {
        PageResult<MesSafetyRiskDO> pageResult = riskService.getRiskPage(pageReqVO);
        List<MesSafetyRiskRespVO> list = buildRespList(pageResult.getList());
        return success(new PageResult<>(list, pageResult.getTotal()));
    }

    @GetMapping("/list-by-unit")
    @Operation(summary = "获得指定风险单元下的风险清单")
    @Parameter(name = "unitId", description = "风险单元编号", required = true)
    @PreAuthorize("@ss.hasPermission('mes:safety-risk:query')")
    public CommonResult<List<MesSafetyRiskRespVO>> getRiskListByUnit(@RequestParam("unitId") Long unitId) {
        return success(buildRespList(riskService.getRiskListByUnitId(unitId)));
    }

    /**
     * 转换为 VO 并填充风险单元名称、车间名称、责任人姓名、风险等级名称
     */
    private List<MesSafetyRiskRespVO> buildRespList(List<MesSafetyRiskDO> list) {
        if (list == null || list.isEmpty()) {
            return Collections.emptyList();
        }
        List<MesSafetyRiskRespVO> respList = BeanUtils.toBean(list, MesSafetyRiskRespVO.class);

        // 风险单元
        Set<Long> unitIds = list.stream().map(MesSafetyRiskDO::getUnitId)
                .filter(Objects::nonNull).collect(Collectors.toSet());
        Map<Long, MesSafetyRiskUnitDO> unitMap = riskUnitService.getRiskUnitMap(unitIds);

        // 车间名称（经风险单元的 workshopId 取）
        Set<Long> workshopIds = unitMap.values().stream().map(MesSafetyRiskUnitDO::getWorkshopId)
                .filter(Objects::nonNull).collect(Collectors.toSet());
        Map<Long, String> workshopNameMap = new HashMap<>();
        if (!workshopIds.isEmpty()) {
            List<MesMdWorkshopDO> workshops = workshopMapper.selectByIds(workshopIds);
            workshops.forEach(w -> workshopNameMap.put(w.getId(), w.getName()));
        }

        // 责任人姓名
        Set<Long> userIds = list.stream().map(MesSafetyRiskDO::getChargeUserId)
                .filter(Objects::nonNull).collect(Collectors.toSet());
        Map<Long, AdminUserRespDTO> userMap = userIds.isEmpty()
                ? Collections.emptyMap() : adminUserApi.getUserMap(userIds);

        for (MesSafetyRiskRespVO vo : respList) {
            MesSafetyRiskUnitDO unit = unitMap.get(vo.getUnitId());
            if (unit != null) {
                vo.setUnitName(unit.getName());
                vo.setWorkshopName(workshopNameMap.get(unit.getWorkshopId()));
            }
            AdminUserRespDTO user = userMap.get(vo.getChargeUserId());
            if (user != null) {
                vo.setChargeUserName(user.getNickname());
            }
            vo.setRiskLevelName(riskLevelName(vo.getRiskLevel()));
        }
        return respList;
    }

    private String riskLevelName(Integer level) {
        if (level == null) {
            return null;
        }
        switch (level) {
            case 1: return "重大风险";
            case 2: return "较大风险";
            case 3: return "一般风险";
            case 4: return "低风险";
            default: return null;
        }
    }

}