process.env.DATABASE_PATH = ':memory:';
process.env.THEMES_DIR = './themes';
process.env.FRONTEND_DIST = './frontend/dist';

import { Test } from '@nestjs/testing';
import { INestApplication } from '@nestjs/common';
import { HttpAdapterHost } from '@nestjs/core';
import cookieParser from 'cookie-parser';
import * as express from 'express';
import request from 'supertest';
import { AppModule } from '../../backend/src/app.module';
import { GlobalExceptionFilter } from '../../backend/src/common/filters/global-exception.filter';
import { CsrfMiddleware } from '../../backend/src/common/middleware/csrf.middleware';
import { ConfigService } from '@nestjs/config';
import { initDb } from './db-helper';
import { BlogPostEntity } from '../../backend/src/database/entities/blog-post.entity';
import { getRepositoryToken } from '@nestjs/typeorm';

describe('GET /api/v1/blog/posts (public)', () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleRef = await Test.createTestingModule({ imports: [AppModule] }).compile();
    app = moduleRef.createNestApplication();
    app.use(cookieParser());
    app.use(express.json({ limit: '1mb' }));
    const csrfMw = new CsrfMiddleware(app.get(ConfigService));
    app.use((req: any, res: any, next: any) => csrfMw.use(req, res, next));
    const httpAdapterHost = app.get(HttpAdapterHost);
    app.useGlobalFilters(new GlobalExceptionFilter(httpAdapterHost));
    await app.init();
    await initDb(app);

    const repo = app.get<any>(getRepositoryToken(BlogPostEntity));
    await repo.insert([
      { id: 'p1', title: 'Published A', bodyMd: '# Hello', status: 'published', publishedAt: '2026-07-20T10:00:00.000Z', createdAt: '2026-07-19T00:00:00.000Z', updatedAt: '2026-07-20T10:00:00.000Z' },
      { id: 'p2', title: 'Draft B', bodyMd: 'should not appear', status: 'draft', publishedAt: null, createdAt: '2026-07-18T00:00:00.000Z', updatedAt: '2026-07-18T00:00:00.000Z' },
      { id: 'p3', title: 'Published C', bodyMd: 'safe content', status: 'published', publishedAt: '2026-07-21T10:00:00.000Z', createdAt: '2026-07-21T00:00:00.000Z', updatedAt: '2026-07-21T10:00:00.000Z' },
    ]);
  });

  afterAll(async () => {
    await app.close();
  });

  it('returns only published posts, ordered by publishedAt DESC', async () => {
    const server = app.getHttpServer();
    const res = await request(server).get('/api/v1/blog/posts').expect(200);
    expect(res.body.posts).toHaveLength(2);
    expect(res.body.posts.map((p: any) => p.id)).toEqual(['p3', 'p1']);
    expect(res.body.posts[0].title).toBe('Published C');
  });

  it('returns Markdown bodies and does not include HTML fields', async () => {
    const server = app.getHttpServer();
    const res = await request(server).get('/api/v1/blog/posts').expect(200);
    const c = res.body.posts.find((p: any) => p.id === 'p3');
    expect(c.bodyMd).toBe('safe content');
    expect(c.bodyHtml).toBeUndefined();
    const a = res.body.posts.find((p: any) => p.id === 'p1');
    expect(a.bodyMd).toBe('# Hello');
  });

  it('does not leak non-public fields', async () => {
    const server = app.getHttpServer();
    const res = await request(server).get('/api/v1/blog/posts').expect(200);
    for (const post of res.body.posts) {
      expect(post.id).toBeDefined();
      expect(post.title).toBeDefined();
      expect(post.bodyMd).toBeDefined();
      expect(post.publishedAt).toBeDefined();
      expect(post.status).toBeUndefined();
    }
  });

  it('rejects unrelated endpoints (no admin/scoreboard leakage)', async () => {
    const server = app.getHttpServer();
    await request(server).get('/api/v1/blog/posts/drafts').expect(404);
    await request(server).get('/api/v1/admin/users').expect(401);
  });
});