import { dataSource } from "../data-source";
import { rolePermission } from "../entity/role_permission";
import InternalException from "../exceptions/internalException";
import RoleService from "../service/roleService";
import { CreateRolePermissionCommand, DeleteRolePermissionCommand } from "./rolePermissionCommand";

export default abstract class UserPermissionCommandHandler {
  /**
   * @description grant permission to user
   * @param CreateRolePermissionCommand
   * @returns {Promise<number>}
   */
  static async create(createPermission: CreateRolePermissionCommand): Promise<number> {
    return await dataSource
      .createQueryBuilder()
      .insert()
      .into(rolePermission)
      .values({
        permission: createPermission.permission,
        role: await RoleService.getById(createPermission.roleId),
      })
      .execute()
      .then((result) => {
        return result.identifiers[0].id;
      })
      .catch((err) => {
        throw new InternalException("Failed saving role permission");
      });
  }

  /**
   * @description remove permission from role
   * @param DeleteRolePermissionCommand
   * @returns {Promise<any>}
   */
  static async delete(deletePermission: DeleteRolePermissionCommand): Promise<any> {
    return await dataSource
      .createQueryBuilder()
      .delete()
      .from(rolePermission)
      .where("permission.id = :id", { id: deletePermission.id })
      .execute()
      .then((res) => {})
      .catch((err) => {
        throw new InternalException("failed role permission removal");
      });
  }
}