package com.mindskip.xzs.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.mindskip.xzs.domain.Department;
import com.mindskip.xzs.domain.enums.DeptAdminEnum;
import com.mindskip.xzs.domain.vo.BaseSelect;
import com.mindskip.xzs.domain.vo.UpdateDeptAdminVO;
import com.mindskip.xzs.repository.BaseMapper;
import com.mindskip.xzs.repository.DepartmentMapper;
import com.mindskip.xzs.repository.UserDepartmentMapper;
import com.mindskip.xzs.repository.UserMapper;
import com.mindskip.xzs.service.DepartmentService;
import com.mindskip.xzs.utility.ModelMapperSingle;
import com.mindskip.xzs.viewmodel.admin.department.DepartmentResponseVM;
import org.modelmapper.ModelMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;

import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

@Service
public class DepartmentServiceImpl extends BaseServiceImpl<Department> implements DepartmentService {

    protected final static ModelMapper modelMapper = ModelMapperSingle.Instance();

    private final DepartmentMapper departmentMapper;
    private final UserDepartmentMapper userDepartmentMapper;
    private final UserMapper userMapper;

    public DepartmentServiceImpl(BaseMapper<Department> baseMapper, DepartmentMapper departmentMapper, UserDepartmentMapper userDepartmentMapper, UserMapper userMapper) {
        super(baseMapper);
        this.departmentMapper = departmentMapper;
        this.userDepartmentMapper = userDepartmentMapper;
        this.userMapper = userMapper;
    }

    @Override
    public Integer add(String name) {
        Department department = new Department();
        department.setDeleted("0");
        department.setName(name);
        return departmentMapper.add(department);
    }

    @Override
    public Integer remove(Integer id) {
        Department department = new Department();
        department.setId(id);
        department.setDeleted("1");
        return departmentMapper.update(department);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public Integer update(Department department) {
//        userDepartmentMapper.removeByDepartmentId(department.getId());
        Department entity = departmentMapper.getById(department.getId());
        if (Objects.isNull(entity)) {
            throw new RuntimeException("该部门不存在");
        }
        if (! CollectionUtils.isEmpty(department.getAdminId())) {
            List<BaseSelect> deptUserList = userDepartmentMapper.getDeptUserList(entity.getId());
            List<Integer> userIds = deptUserList.stream().map(BaseSelect::getId).collect(Collectors.toList());
            if (! CollectionUtils.isEmpty(userIds)) {
                // 先清除之前的管理员标识
                userMapper.clearDeptAdmin(userIds, entity.getId());
            }
            // 标识部门管理员
            userMapper.updateDeptAdmin(department.getAdminId(), DeptAdminEnum.YES.getValue(), entity.getId());
        }
        Integer update = departmentMapper.update(department);
        return update;
    }

    @Override
    public PageInfo<DepartmentResponseVM> gets(DepartmentResponseVM departmentResponseVM) {
        return PageHelper.startPage(departmentResponseVM.getPageIndex(), departmentResponseVM.getPageSize(), "id desc").doSelectPageInfo(() ->
                departmentMapper.page(departmentResponseVM)
        );
    }

    @Override
    public Department getById(Integer id) {
        return departmentMapper.getById(id);
    }

    @Override
    public List<Department> gets(List<Integer> deptId) {
        return departmentMapper.gets(deptId);
    }

    @Override
    public Department getName(String name) {
        return departmentMapper.getName(name);
    }

    /**
     * 获取部门用户下拉列表
     * @param deptId
     * @return
     */
    @Override
    public List<BaseSelect> getDeptUserList(Integer deptId) {
        return userDepartmentMapper.getDeptUserList(deptId);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateAdmin(UpdateDeptAdminVO form) {
        Department entity = departmentMapper.getById(form.getId());
        if (Objects.isNull(entity)) {
            throw new RuntimeException("该部门不存在");
        }
        if (! CollectionUtils.isEmpty(form.getAdminIds())) {
            List<BaseSelect> deptUserList = userDepartmentMapper.getDeptUserList(entity.getId());
            List<Integer> userIds = deptUserList.stream().map(BaseSelect::getId).collect(Collectors.toList());
            if (! CollectionUtils.isEmpty(userIds)) {
                // 先清除之前的管理员标识
                userMapper.clearDeptAdmin(userIds, entity.getId());
            }
            // 标识部门管理员
            userMapper.updateDeptAdmin(form.getAdminIds(), DeptAdminEnum.YES.getValue(), entity.getId());
        }
        // 修改被选择的用户为部门管理员
        userMapper.updateUserDeptAdmin(form);
        // 修改没被选择的用户并且不是别的部门管理员的用户角色为1
        userMapper.cancelUserDeptAdmin(form);
    }
}