package cn.iocoder.yudao.module.hrm.service.salary;

import cn.iocoder.yudao.module.hrm.dal.dataobject.salary.HrmSalaryStructureDO;
import cn.iocoder.yudao.module.hrm.dal.mysql.employee.HrmEmployeeMapper;
import cn.iocoder.yudao.module.hrm.dal.mysql.salary.HrmEmployeeSalaryMapper;
import cn.iocoder.yudao.module.hrm.dal.mysql.salary.HrmSalaryStructureMapper;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;

import java.math.BigDecimal;
import java.util.List;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.hrm.enums.ErrorCodeConstants.SALARY_STRUCTURE_IN_USE;
import static cn.iocoder.yudao.module.hrm.enums.ErrorCodeConstants.SALARY_STRUCTURE_NAME_EXISTS;
import static cn.iocoder.yudao.module.hrm.enums.ErrorCodeConstants.SALARY_STRUCTURE_NOT_EXISTS;

@Service
@Validated
public class HrmSalaryStructureServiceImpl implements HrmSalaryStructureService {

    @Resource
    private HrmSalaryStructureMapper salaryStructureMapper;
    @Resource
    private HrmEmployeeMapper employeeMapper;
    @Resource
    private HrmEmployeeSalaryMapper employeeSalaryMapper;

    @Override
    public Long createSalaryStructure(HrmSalaryStructureDO structure) {
        validateNameUnique(null, structure.getName());
        // 基本工资由员工档案维护。数据库历史字段非空，新建结构统一写入占位值 0。
        structure.setBaseSalary(BigDecimal.ZERO);
        salaryStructureMapper.insert(structure);
        return structure.getId();
    }

    @Override
    public void updateSalaryStructure(HrmSalaryStructureDO structure) {
        validateExists(structure.getId());
        validateNameUnique(structure.getId(), structure.getName());
        salaryStructureMapper.updateById(structure);
    }

    @Override
    public void deleteSalaryStructure(Long id) {
        validateExists(id);
        if (employeeMapper.selectCountBySalaryStructureId(id) > 0
                || employeeSalaryMapper.selectCountBySalaryStructureId(id) > 0) {
            throw exception(SALARY_STRUCTURE_IN_USE);
        }
        salaryStructureMapper.deleteById(id);
    }

    @Override
    public HrmSalaryStructureDO getSalaryStructure(Long id) {
        return salaryStructureMapper.selectById(id);
    }

    @Override
    public List<HrmSalaryStructureDO> getSalaryStructureList(String name, Integer status) {
        return salaryStructureMapper.selectListByCondition(name, status);
    }

    private void validateExists(Long id) {
        if (id == null || salaryStructureMapper.selectById(id) == null) {
            throw exception(SALARY_STRUCTURE_NOT_EXISTS);
        }
    }

    private void validateNameUnique(Long id, String name) {
        HrmSalaryStructureDO structure = salaryStructureMapper.selectByName(name);
        if (structure != null && !structure.getId().equals(id)) {
            throw exception(SALARY_STRUCTURE_NAME_EXISTS);
        }
    }

}