import express from 'express';
import type { AddressInfo } from 'node:net';
import { afterEach, describe, expect, it, vi } from 'vitest';
import { OutreachFunnelResponseSchema } from '../../packages/api-contracts/src/index.js';
import type { WebContext } from '../../src/web/context.js';
import { createOutreachRouter } from '../../src/web/routes/outreach.js';

const servers: Array<ReturnType<express.Express['listen']>> = [];

async function request(app: express.Express, path: string): Promise<Response> {
  const server = app.listen(0);
  servers.push(server);
  await new Promise<void>((resolve) => server.once('listening', resolve));
  const { port } = server.address() as AddressInfo;
  return fetch(`http://127.0.0.1:${port}${path}`);
}

afterEach(async () => {
  await Promise.all(servers.splice(0).map((server) => new Promise<void>((resolve) => server.close(() => resolve()))));
});

describe('outreach route', () => {
  it('publishes active candidates and queue outcomes without prepared message content', async () => {
    const candidateQueue = {
      getStats: vi.fn(() => ({
        total: 9,
        byStatus: { discovered: 2, screening: 1, ready: 1, sending: 1, retryable: 1, sent: 2, rejected: 1 },
        ready: 1,
        oldestReadyAt: 2_000,
        rejectionReasons: [],
      })),
      getOldestActiveAt: vi.fn(() => 1_000),
      listActive: vi.fn(() => [{
        postId: 'post-1', subreddit: 'example', author: 'alice', sourceType: 'image',
        post: {
          id: 'post-1', subreddit: 'example', author: 'alice', author_fullname: 't2_alice',
          title: '[25F] Hello', url: 'https://i.redd.it/post-1.jpg', permalink: '/r/example/comments/post-1/hello/',
          thumbnail: '', is_self: false, created_utc: 100, over_18: true, spoiler: false,
        },
        prepared: { generatedMessage: 'private prepared text' }, priority: 2, status: 'sending',
        discoveredAt: 1_000, updatedAt: 2_000, availableAt: 2_000,
        leaseOwner: 'worker-secret', leaseExpiresAt: 3_000, assignedAccountId: 'account-a',
        attemptCount: 2, lastError: null,
      }]),
    };
    const context = {
      services: {
        candidateQueue,
        redditAccounts: { list: () => [{ accountId: 'account-a', redditUsername: 'operator' }] },
      },
    } as unknown as WebContext;
    const app = express().use('/api', createOutreachRouter(context));

    const response = await request(app, '/api/outreach');
    const body: unknown = await response.json();
    const parsed = OutreachFunnelResponseSchema.parse(body);

    expect(response.status).toBe(200);
    expect(parsed).toMatchObject({
      activeCount: 6,
      stages: { discovered: 2, screening: 1, ready: 1, sending: 1, retryable: 1 },
      outcomes: { sent: 2, rejected: 1 },
      candidates: [{
        postId: 'post-1', status: 'sending', hasPreparedMessage: true,
        postUrl: 'https://www.reddit.com/r/example/comments/post-1/hello/',
        owner: { accountId: 'account-a', redditUsername: 'operator' },
      }],
    });
    expect(JSON.stringify(body)).not.toContain('private prepared text');
    expect(JSON.stringify(body)).not.toContain('worker-secret');
  });

  it('reports an unavailable queue instead of an empty funnel', async () => {
    const context = { services: {} } as unknown as WebContext;
    const app = express().use('/api', createOutreachRouter(context));

    const response = await request(app, '/api/outreach');

    expect(response.status).toBe(503);
    expect(await response.json()).toEqual({ error: 'Outreach queue not initialized' });
  });
});