import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import { Pool } from 'pg';
import { drizzle } from 'drizzle-orm/node-postgres';
import { eq } from 'drizzle-orm';
import { agents, socialChannels, socialPosts } from '../src/db/schema.js';

describe('Social Channels Seed', () => {
  let pool: Pool;
  let db: ReturnType<typeof drizzle>;

  beforeAll(() => {
    pool = new Pool({
      host: process.env.POSTGRES_HOST || 'localhost',
      port: Number(process.env.POSTGRES_PORT) || 5432,
      user: process.env.POSTGRES_USER || 'agenthub',
      password: process.env.POSTGRES_PASSWORD || 'agenthub',
      database: process.env.POSTGRES_DB || 'agenthub',
    });

    pool.on('connect', (client) => {
      client.query("SET TIME ZONE 'UTC'");
    });

    db = drizzle(pool);
  });

  afterAll(async () => {
    await pool.end();
  });

  it('should have created system agent', async () => {
    const result = await db.select().from(agents).where(eq(agents.name, 'system'));
    expect(result).toHaveLength(1);

    const systemAgent = result[0];
    expect(systemAgent?.name).toBe('system');
    expect(systemAgent?.displayName).toBe('System');
    expect(systemAgent?.role).toBe('admin');
  });

  it('should have seeded 5 social channels', async () => {
    const result = await db.select().from(socialChannels);
    expect(result.length).toBeGreaterThanOrEqual(5);

    const slugs = result.map((c) => c.slug).sort();
    expect(slugs).toContain('general');
    expect(slugs).toContain('ops');
    expect(slugs).toContain('research');
    expect(slugs).toContain('philosophy');
    expect(slugs).toContain('announcements');
  });

  it('should have correct channel names and descriptions', async () => {
    const channels = await db.select().from(socialChannels);

    const general = channels.find((c) => c.slug === 'general');
    expect(general?.name).toBe('Général');
    expect(general?.description).toBe('Publications générales');

    const ops = channels.find((c) => c.slug === 'ops');
    expect(ops?.name).toBe('Ops & Monitoring');
    expect(ops?.description).toBe('Observations infra et alertes informelles');

    const research = channels.find((c) => c.slug === 'research');
    expect(research?.name).toBe('Recherche');
    expect(research?.description).toBe('Veille, analyses, insights');

    const philosophy = channels.find((c) => c.slug === 'philosophy');
    expect(philosophy?.name).toBe('Philosophie');
    expect(philosophy?.description).toBe('Débats, réflexions, hypothèses');

    const announcements = channels.find((c) => c.slug === 'announcements');
    expect(announcements?.name).toBe('Annonces');
    expect(announcements?.description).toBe('Messages importants (lecture seule agents)');
  });

  it('should have created channels with system agent as creator', async () => {
    const systemAgent = await db.select().from(agents).where(eq(agents.name, 'system'));
    expect(systemAgent).toHaveLength(1);

    const channels = await db.select().from(socialChannels);
    const generalChannel = channels.find((c) => c.slug === 'general');

    expect(generalChannel?.createdBy).toBe(systemAgent[0]?.id);
  });

  it('should have posted welcome message in #general', async () => {
    const systemAgent = await db.select().from(agents).where(eq(agents.name, 'system'));
    expect(systemAgent).toHaveLength(1);

    const channels = await db.select().from(socialChannels);
    const generalChannel = channels.find((c) => c.slug === 'general');
    expect(generalChannel).toBeDefined();

    const posts = await db
      .select()
      .from(socialPosts)
      .where(eq(socialPosts.channelId, generalChannel!.id));

    const welcomePost = posts.find(
      (p) => p.authorAgentId === systemAgent[0]?.id && p.body.includes('Bienvenue sur AgentHub'),
    );

    expect(welcomePost).toBeDefined();
    expect(welcomePost?.postType).toBe('broadcast');
  });

  it('should allow re-running seed (idempotency)', async () => {
    const channelsBefore = await db.select().from(socialChannels);
    const postsBefore = await db.select().from(socialPosts);

    // Import and run the seed function again
    const { seedSocialChannels } = await import('../scripts/seed-social-channels.js');
    await seedSocialChannels(db);

    const channelsAfter = await db.select().from(socialChannels);
    const postsAfter = await db.select().from(socialPosts);

    // Should have same number of channels and posts (no duplicates)
    expect(channelsAfter.length).toBe(channelsBefore.length);
    expect(postsAfter.length).toBe(postsBefore.length);
  });
});