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

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.salary.vo.HrmSalaryCalculationPageReqVO;
import cn.iocoder.yudao.module.hrm.controller.admin.salary.vo.HrmSalaryCalculationRespVO;
import cn.iocoder.yudao.module.hrm.controller.admin.salary.vo.HrmSalaryCalculationSaveReqVO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.employee.HrmEmployeeDO;
import cn.iocoder.yudao.module.hrm.dal.dataobject.salary.HrmSalaryCalculationDO;
import cn.iocoder.yudao.module.hrm.service.employee.HrmEmployeeService;
import cn.iocoder.yudao.module.hrm.service.salary.HrmSalaryCalculationService;
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 薪酬核算")
@RestController
@RequestMapping("/hrm/salary/calculation")
@Validated
public class HrmSalaryCalculationController {

    @Resource
    private HrmSalaryCalculationService salaryCalculationService;
    @Resource
    private HrmEmployeeService employeeService;
    @Resource
    private DeptApi deptApi;

    @GetMapping("/page")
    @Operation(summary = "获得薪酬核算分页")
    @PreAuthorize("@ss.hasPermission('hrm:salary:query')")
    public CommonResult<PageResult<HrmSalaryCalculationRespVO>> getSalaryCalculationPage(@Valid HrmSalaryCalculationPageReqVO pageReqVO) {
        PageResult<HrmSalaryCalculationDO> pageResult = salaryCalculationService.getSalaryCalculationPage(pageReqVO);
        // 转换为 VO
        List<HrmSalaryCalculationRespVO> list = BeanUtils.toBean(pageResult.getList(), HrmSalaryCalculationRespVO.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（userId 是员工ID）
     */
    private void fillUserInfo(List<HrmSalaryCalculationRespVO> respList, List<HrmSalaryCalculationDO> calculationList) {
        // userId 是员工ID，批量获取员工信息
        Set<Long> employeeIds = calculationList.stream()
                .map(HrmSalaryCalculationDO::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 = calculationList.stream()
                .map(HrmSalaryCalculationDO::getDeptId)
                .filter(Objects::nonNull)
                .collect(Collectors.toSet());
        Map<Long, DeptRespDTO> deptMap = CollUtil.isEmpty(deptIds) ? Collections.emptyMap() : deptApi.getDeptMap(deptIds);

        // 填充信息
        for (HrmSalaryCalculationRespVO 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 = "获得薪酬核算")
    @Parameter(name = "id", description = "核算ID", required = true)
    @PreAuthorize("@ss.hasPermission('hrm:salary:query')")
    public CommonResult<HrmSalaryCalculationRespVO> getSalaryCalculation(@RequestParam("id") Long id) {
        HrmSalaryCalculationDO salaryCalculation = salaryCalculationService.getSalaryCalculation(id);
        if (salaryCalculation == null) {
            return success(null);
        }
        HrmSalaryCalculationRespVO respVO = BeanUtils.toBean(salaryCalculation, HrmSalaryCalculationRespVO.class);
        // 填充员工和部门信息（userId 是员工ID）
        if (salaryCalculation.getUserId() != null) {
            HrmEmployeeDO employee = employeeService.getEmployee(salaryCalculation.getUserId());
            if (employee != null) {
                respVO.setUserName(employee.getName());
            }
        }
        if (salaryCalculation.getDeptId() != null) {
            DeptRespDTO dept = deptApi.getDept(salaryCalculation.getDeptId());
            if (dept != null) {
                respVO.setDeptName(dept.getName());
            }
        }
        return success(respVO);
    }

    @PostMapping("/calculate")
    @Operation(summary = "执行薪酬核算")
    @Parameter(name = "period", description = "核算周期", required = true, example = "2024-01")
    @Parameter(name = "deptId", description = "部门ID，为空则核算所有部门", example = "1")
    @PreAuthorize("@ss.hasPermission('hrm:salary:calculate')")
    public CommonResult<Boolean> calculateSalary(@RequestParam("period") String period,
                                                  @RequestParam(value = "deptId", required = false) Long deptId) {
        salaryCalculationService.calculateSalary(period, deptId);
        return success(true);
    }

    @PostMapping("/confirm")
    @Operation(summary = "批量确认薪酬核算")
    @PreAuthorize("@ss.hasPermission('hrm:salary:confirm')")
    public CommonResult<Boolean> confirmSalaryCalculation(@RequestBody Map<String, List<Long>> request) {
        List<Long> ids = request.get("ids");
        salaryCalculationService.confirmSalaryCalculation(ids);
        return success(true);
    }

    @PostMapping("/revoke")
    @Operation(summary = "批量撤销薪酬核算确认")
    @PreAuthorize("@ss.hasPermission('hrm:salary:confirm')")
    public CommonResult<Boolean> revokeSalaryCalculation(@RequestBody Map<String, List<Long>> request) {
        List<Long> ids = request.get("ids");
        salaryCalculationService.revokeSalaryCalculation(ids);
        return success(true);
    }

    @DeleteMapping("/delete")
    @Operation(summary = "删除薪酬核算记录")
    @Parameter(name = "id", description = "核算ID", required = true)
    @PreAuthorize("@ss.hasPermission('hrm:salary:delete')")
    public CommonResult<Boolean> deleteSalaryCalculation(@RequestParam("id") Long id) {
        salaryCalculationService.deleteSalaryCalculation(id);
        return success(true);
    }

    @GetMapping("/export-excel")
    @Operation(summary = "导出薪酬核算 Excel")
    @PreAuthorize("@ss.hasPermission('hrm:salary:export')")
    @ApiAccessLog(operateType = EXPORT)
    public void exportSalaryCalculationExcel(@Valid HrmSalaryCalculationPageReqVO pageReqVO,
                                               HttpServletResponse response) throws IOException {
        pageReqVO.setPageSize(PageParam.PAGE_SIZE_NONE);
        PageResult<HrmSalaryCalculationDO> pageResult = salaryCalculationService.getSalaryCalculationPage(pageReqVO);
        List<HrmSalaryCalculationDO> calculationList = pageResult.getList();
        // 转换为 VO
        List<HrmSalaryCalculationRespVO> list = BeanUtils.toBean(calculationList, HrmSalaryCalculationRespVO.class);
        // 填充员工和部门信息
        if (CollUtil.isNotEmpty(list)) {
            fillUserInfo(list, calculationList);
        }
        ExcelUtils.write(response, "薪酬核算.xls", "数据", HrmSalaryCalculationRespVO.class, list);
    }

    @GetMapping("/preview")
    @Operation(summary = "预览部门下所有员工的薪资核算信息")
    @Parameter(name = "period", description = "核算周期", required = true, example = "2024-01")
    @Parameter(name = "deptId", description = "部门ID，为空则查询全部", example = "1")
    @PreAuthorize("@ss.hasPermission('hrm:salary:query')")
    public CommonResult<List<HrmSalaryCalculationRespVO>> previewSalaryCalculation(
            @RequestParam("period") String period,
            @RequestParam(value = "deptId", required = false) Long deptId) {
        // 查询已计算好的薪酬核算记录
        List<HrmSalaryCalculationDO> list = salaryCalculationService.previewSalaryCalculation(period, deptId);
        // 转换为 VO
        List<HrmSalaryCalculationRespVO> respList = BeanUtils.toBean(list, HrmSalaryCalculationRespVO.class);
        // 填充员工和部门信息
        if (CollUtil.isNotEmpty(respList)) {
            fillUserInfo(respList, list);
        }
        return success(respList);
    }

    @PostMapping("/save")
    @Operation(summary = "批量保存薪酬核算记录")
    @PreAuthorize("@ss.hasPermission('hrm:salary:calculate')")
    public CommonResult<Boolean> saveSalaryCalculation(@Valid @RequestBody HrmSalaryCalculationSaveReqVO saveReqVO) {
        // 转换为 DO 列表
        List<HrmSalaryCalculationDO> calculationList = saveReqVO.getList().stream()
                .map(item -> {
                    HrmSalaryCalculationDO calculation = BeanUtils.toBean(item, HrmSalaryCalculationDO.class);
                    calculation.setPeriod(saveReqVO.getPeriod());
                    return calculation;
                })
                .collect(Collectors.toList());
        // 批量保存
        salaryCalculationService.saveSalaryCalculationList(calculationList);
        return success(true);
    }

}