package cn.iocoder.yudao.module.hrm.controller.admin.attendance;

import cn.hutool.core.collection.CollUtil;
import cn.iocoder.yudao.framework.apilog.core.annotation.ApiAccessLog;
import cn.iocoder.yudao.framework.common.pojo.CommonResult;
import cn.iocoder.yudao.framework.common.pojo.PageParam;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.framework.excel.core.util.ExcelUtils;
import cn.iocoder.yudao.module.hrm.controller.admin.attendance.vo.HrmAttendanceSummaryPageReqVO;
import cn.iocoder.yudao.module.hrm.controller.admin.attendance.vo.HrmAttendanceSummaryRespVO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.attendance.HrmAttendanceSummaryDO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.employee.HrmEmployeeDO;
import cn.iocoder.yudao.module.hrm.service.attendance.HrmAttendanceSummaryService;
import cn.iocoder.yudao.module.hrm.service.employee.HrmEmployeeService;
import cn.iocoder.yudao.module.system.api.dept.DeptApi;
import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
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.servlet.http.HttpServletResponse;
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.io.IOException;
import java.util.*;
import java.util.stream.Collectors;

import static cn.iocoder.yudao.framework.apilog.core.enums.OperateTypeEnum.EXPORT;
import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;

@Tag(name = "管理后台 - HRM 考勤统计汇总")
@RestController
@RequestMapping("/hrm/attendance/summary")
@Validated
public class HrmAttendanceSummaryController {

    @Resource
    private HrmAttendanceSummaryService attendanceSummaryService;
    @Resource
    private HrmEmployeeService employeeService;
    @Resource
    private DeptApi deptApi;

    @GetMapping("/page")
    @Operation(summary = "获得考勤统计汇总分页")
    @PreAuthorize("@ss.hasPermission('hrm:attendance:query')")
    public CommonResult<PageResult<HrmAttendanceSummaryRespVO>> getAttendanceSummaryPage(@Valid HrmAttendanceSummaryPageReqVO pageReqVO) {
        PageResult<HrmAttendanceSummaryDO> pageResult = attendanceSummaryService.getAttendanceSummaryPage(pageReqVO);
        List<HrmAttendanceSummaryRespVO> list = BeanUtils.toBean(pageResult.getList(), HrmAttendanceSummaryRespVO.class);
        // 填充员工和部门信息
        if (CollUtil.isNotEmpty(list)) {
            fillUserInfo(list, pageResult.getList());
        }
        return success(new PageResult<>(list, pageResult.getTotal()));
    }

    /**
     * 填充员工和部门信息
     */
    private void fillUserInfo(List<HrmAttendanceSummaryRespVO> respList, List<HrmAttendanceSummaryDO> summaryList) {
        // 批量获取员工信息
        Set<Long> employeeIds = summaryList.stream()
                .map(HrmAttendanceSummaryDO::getUserId)
                .filter(Objects::nonNull)
                .collect(Collectors.toSet());
        Map<Long, HrmEmployeeDO> employeeMap = new HashMap<>();
        for (Long employeeId : employeeIds) {
            HrmEmployeeDO employee = employeeService.getEmployee(employeeId);
            if (employee != null) {
                employeeMap.put(employeeId, employee);
            }
        }
        // 批量获取部门信息
        Set<Long> deptIds = summaryList.stream()
                .map(HrmAttendanceSummaryDO::getDeptId)
                .filter(Objects::nonNull)
                .collect(Collectors.toSet());
        Map<Long, DeptRespDTO> deptMap = CollUtil.isEmpty(deptIds) ? Collections.emptyMap() : deptApi.getDeptMap(deptIds);

        // 填充信息
        for (HrmAttendanceSummaryRespVO respVO : respList) {
            HrmEmployeeDO employee = employeeMap.get(respVO.getUserId());
            if (employee != null) {
                respVO.setUserName(employee.getName());
            }
            DeptRespDTO dept = deptMap.get(respVO.getDeptId());
            if (dept != null) {
                respVO.setDeptName(dept.getName());
            }
        }
    }

    @GetMapping("/get")
    @Operation(summary = "获得员工月度考勤汇总")
    @PreAuthorize("@ss.hasPermission('hrm:attendance:query')")
    public CommonResult<HrmAttendanceSummaryRespVO> getMonthlySummary(
            @RequestParam("userId") Long userId,
            @RequestParam("yearMonth") String yearMonth) {
        HrmAttendanceSummaryDO summary = attendanceSummaryService.getMonthlySummary(userId, yearMonth);
        if (summary == null) {
            return success(null);
        }
        HrmAttendanceSummaryRespVO respVO = BeanUtils.toBean(summary, HrmAttendanceSummaryRespVO.class);
        // 填充员工和部门信息
        HrmEmployeeDO employee = employeeService.getEmployee(userId);
        if (employee != null) {
            respVO.setUserName(employee.getName());
        }
        if (summary.getDeptId() != null) {
            DeptRespDTO dept = deptApi.getDept(summary.getDeptId());
            if (dept != null) {
                respVO.setDeptName(dept.getName());
            }
        }
        return success(respVO);
    }

    @PostMapping("/generate")
    @Operation(summary = "生成月度考勤汇总")
    @Parameter(name = "yearMonth", description = "年月，格式：yyyy-MM", required = true)
    @PreAuthorize("@ss.hasPermission('hrm:attendance:calculate')")
    public CommonResult<Boolean> generateMonthlySummary(@RequestParam("yearMonth") String yearMonth,
                                                          @RequestParam(value = "deptId", required = false) Long deptId,
                                                          @RequestParam(value = "userId", required = false) Long userId) {
        if (userId != null) {
            attendanceSummaryService.generateMonthlySummary(userId, yearMonth);
        } else if (deptId != null) {
            attendanceSummaryService.generateDeptMonthlySummary(deptId, yearMonth);
        } else {
            attendanceSummaryService.generateAllMonthlySummary(yearMonth);
        }
        return success(true);
    }

    @GetMapping("/export-excel")
    @Operation(summary = "导出考勤统计汇总 Excel")
    @PreAuthorize("@ss.hasPermission('hrm:attendance:export')")
    @ApiAccessLog(operateType = EXPORT)
    public void exportAttendanceSummaryExcel(@Valid HrmAttendanceSummaryPageReqVO pageReqVO,
                                               HttpServletResponse response) throws IOException {
        pageReqVO.setPageSize(PageParam.PAGE_SIZE_NONE);
        PageResult<HrmAttendanceSummaryDO> pageResult = attendanceSummaryService.getAttendanceSummaryPage(pageReqVO);
        List<HrmAttendanceSummaryRespVO> data = BeanUtils.toBean(pageResult.getList(), HrmAttendanceSummaryRespVO.class);
        // 填充员工和部门信息
        if (CollUtil.isNotEmpty(data)) {
            fillUserInfo(data, pageResult.getList());
        }
        ExcelUtils.write(response, "考勤统计汇总.xls", "数据", HrmAttendanceSummaryRespVO.class, data);
    }

}