import {
  Injectable,
  CanActivate,
  ExecutionContext,
  HttpException,
  HttpStatus,
} from '@nestjs/common';
import { Request } from 'express';
import { Observable } from 'rxjs';

@Injectable()
export class AuthGuard implements CanActivate {
  canActivate(
    context: ExecutionContext,
  ): boolean | Promise<boolean> | Observable<boolean> {
    const http = context.switchToHttp();
    const request = http.getRequest<Request>();
    if (!(request.session as Record<string, any>).user) {
      throw new HttpException('Please log in', HttpStatus.UNAUTHORIZED);
    }
    return true;
  }
}