package dept

import (
	"context"

	authHelper "perms-system-server/internal/logic/auth"
	"perms-system-server/internal/response"
	"perms-system-server/internal/svc"
	"perms-system-server/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type DeleteDeptLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewDeleteDeptLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteDeptLogic {
	return &DeleteDeptLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *DeleteDeptLogic) DeleteDept(req *types.DeleteDeptReq) error {
	if err := authHelper.RequireSuperAdmin(l.ctx); err != nil {
		return err
	}

	children, err := l.svcCtx.SysDeptModel.FindByParentId(l.ctx, req.Id)
	if err != nil {
		return err
	}
	if len(children) > 0 {
		return response.ErrBadRequest("该部门下存在子部门，无法删除")
	}

	userIds, _ := l.svcCtx.SysUserModel.FindIdsByDeptId(l.ctx, req.Id)
	if len(userIds) > 0 {
		return response.ErrBadRequest("该部门下仍有关联用户，无法删除")
	}

	return l.svcCtx.SysDeptModel.Delete(l.ctx, req.Id)
}