import { Injectable, CanActivate, NotFoundException } from "@nestjs/common";

/**
 * Guard that checks if local authentication is enabled via ENABLE_LOCAL_AUTH env var.
 * Returns 404 when disabled so endpoints are invisible to callers.
 */
@Injectable()
export class LocalAuthEnabledGuard implements CanActivate {
  canActivate(): boolean {
    if (process.env.ENABLE_LOCAL_AUTH !== "true") {
      throw new NotFoundException();
    }
    return true;
  }
}