/**
 * Federation Controller
 *
 * API endpoints for instance identity and federation management.
 */

import { Controller, Get, Post, UseGuards, Logger } from "@nestjs/common";
import { FederationService } from "./federation.service";
import { AuthGuard } from "../auth/guards/auth.guard";
import { PublicInstanceIdentity, InstanceIdentity } from "./types/instance.types";

@Controller("api/v1/federation")
export class FederationController {
  private readonly logger = new Logger(FederationController.name);

  constructor(private readonly federationService: FederationService) {}

  /**
   * Get this instance's public identity
   * No authentication required - this is public information for federation
   */
  @Get("instance")
  async getInstance(): Promise<PublicInstanceIdentity> {
    this.logger.debug("GET /api/v1/federation/instance");
    return this.federationService.getPublicIdentity();
  }

  /**
   * Regenerate instance keypair
   * Requires authentication - this is an admin operation
   */
  @Post("instance/regenerate-keys")
  @UseGuards(AuthGuard)
  async regenerateKeys(): Promise<InstanceIdentity> {
    this.logger.log("POST /api/v1/federation/instance/regenerate-keys");
    return this.federationService.regenerateKeypair();
  }
}