import {
  Body,
  Controller,
  Get,
  HttpCode,
  HttpStatus,
  Inject,
  Param,
  Post,
  Query,
} from "@nestjs/common";
import { SwarmOptInInput, SwarmListQuery } from "@courtmitra/contracts";
import { parseOrThrow } from "../common/zod-validation.pipe.js";
import { SwarmService } from "./swarm.service.js";

@Controller()
export class SwarmController {
  constructor(@Inject(SwarmService) private readonly swarm: SwarmService) {}

  /**
   * GET /api/swarms
   * List swarms with optional filters.
   */
  @Get("swarms")
  async list(@Query() query: unknown) {
    const q = parseOrThrow(SwarmListQuery, query);
    return this.swarm.list({
      domain: q.domain,
      entityId: q.entityId,
      status: q.status,
    });
  }

  /**
   * GET /api/swarms/:id
   * Get a single swarm with entity info.
   */
  @Get("swarms/:id")
  async get(@Param("id") id: string) {
    return this.swarm.get(id);
  }

  /**
   * GET /api/swarms/:id/dossier
   * Get the anonymized public dossier for a swarm.
   */
  @Get("swarms/:id/dossier")
  async getDossier(@Param("id") id: string) {
    return this.swarm.getDossier(id);
  }

  /**
   * GET /api/swarms/:id/members
   * List members of a swarm.
   */
  @Get("swarms/:id/members")
  async getMembers(@Param("id") id: string) {
    return this.swarm.getMembers(id);
  }

  /**
   * POST /api/missions/:missionId/swarm/opt-in
   * Opt a mission into a swarm with consent.
   */
  @Post("missions/:missionId/swarm/opt-in")
  @HttpCode(HttpStatus.CREATED)
  async optIn(
    @Param("missionId") missionId: string,
    @Body() body: unknown,
  ) {
    const input = parseOrThrow(SwarmOptInInput, body);
    return this.swarm.optIn(missionId, input.swarmId, input);
  }

  /**
   * POST /api/admin/swarms/recluster
   * Trigger re-clustering of all active swarms (admin only).
   * TODO: emit swarm.recluster_requested event and implement worker function.
   */
  @Post("admin/swarms/recluster")
  @HttpCode(HttpStatus.ACCEPTED)
  async recluster() {
    // TODO: emit swarm.recluster_requested event through WorkflowService
    // For now, return 501 Not Implemented to avoid fake acceptance.
    throw new Error("Re-clustering not yet implemented — use individual swarm opt-in.");
  }
}