library-ts/node/users/requirements/user/UserHasPermission.ts

import { FastifyRequest, FastifyReply } from 'fastify';
import { RequestRequirement } from '../RequestRequirement';
import { Message } from '../../../../browser/messages/Message';

export class UserHasPermission extends RequestRequirement
{
  private _permissionID:string = "";

  constructor( permissionID:string )
  {
    super();
    this._permissionID = permissionID;
  }

  async handle( request:FastifyRequest, reply:FastifyReply ):Promise<Message[]>
  {
    let user = await this._handler.getUser();
    
    let userDB = this._handler.userDB;

    let hasPermission = await userDB.hasPermission( user, this._permissionID ); 

    if ( ! hasPermission )
    {
      return Promise.resolve( [ Message.Error( "User has no permission for " + this._permissionID ) ] );
    }

    return Promise.resolve( [] );
  }
}