import { beforeEach, afterEach, describe, expect, it } from 'bun:test';
import { createTempDb } from './helpers/db';
// Los imports del handler y closeDb se hacen dinámicos dentro de cada test/teardown

function toIsoSql(d: Date): string {
  return d.toISOString().replace('T', ' ').replace('Z', '');
}

describe('Web API - completar tarea encola reacción ✅', () => {
  let cleanup: () => void;
  let db: any;
  let path: string;

  const USER = '34600123456';
  const GROUP_ID = '12345-67890@g.us';

  beforeEach(() => {
    const tmp = createTempDb();
    cleanup = tmp.cleanup;
    db = tmp.db;
    path = tmp.path;

    process.env.NODE_ENV = 'test';
    process.env.DB_PATH = path;
    process.env.REACTIONS_ENABLED = 'true';
    process.env.REACTIONS_SCOPE = 'groups';
    process.env.REACTIONS_TTL_DAYS = '14';
    process.env.GROUP_GATING_MODE = 'enforce';

    // Sembrar usuario y grupo permitido + membresía activa
    db.prepare(`INSERT OR IGNORE INTO users (id) VALUES (?)`).run(USER);
    db.prepare(`INSERT OR IGNORE INTO groups (id, community_id, name, active) VALUES (?, 'comm-1', 'Group', 1)`).run(GROUP_ID);
    db.prepare(`INSERT OR REPLACE INTO allowed_groups (group_id, label, status) VALUES (?, 'Test', 'allowed')`).run(GROUP_ID);
    db.prepare(`INSERT OR REPLACE INTO group_members (group_id, user_id, is_admin, is_active) VALUES (?, ?, 0, 1)`).run(GROUP_ID, USER);
  });

  afterEach(async () => {
    // Cerrar la conexión singleton de la web antes de borrar el archivo
    try {
      const { closeDb } = await import('../../apps/web/src/lib/server/db.ts');
      closeDb();
    } catch {}
    if (cleanup) cleanup();
    // Limpiar env relevantes
    delete process.env.DB_PATH;
    delete process.env.REACTIONS_ENABLED;
    delete process.env.REACTIONS_SCOPE;
    delete process.env.REACTIONS_TTL_DAYS;
    delete process.env.GROUP_GATING_MODE;
  });

  it('caso feliz: encola 1 reacción ✅ con metadata canónica', async () => {
    // Crear tarea en grupo (no completada)
    const ins = db.prepare(`
      INSERT INTO tasks (description, due_date, group_id, created_by, completed, completed_at)
      VALUES ('Probar reacción', NULL, ?, ?, 0, NULL)
    `).run(GROUP_ID, USER) as any;
    const taskId = Number(ins.lastInsertRowid);

    // Origen reciente con participant y from_me=1
    const messageId = 'MSG-abc-123';
    db.prepare(`
      INSERT OR REPLACE INTO task_origins (task_id, chat_id, message_id, created_at, participant, from_me)
      VALUES (?, ?, ?, ?, ?, ?)
    `).run(taskId, GROUP_ID, messageId, toIsoSql(new Date()), `${USER}@s.whatsapp.net`, 1);

    // Ejecutar endpoint
    const event: any = {
      locals: { userId: USER },
      params: { id: String(taskId) },
      request: new Request('http://localhost', { method: 'POST' })
    };
    const { POST: completeHandler } = await import('../../apps/web/src/routes/api/tasks/[id]/complete/+server.ts');
    const res = await completeHandler(event);
    expect(res.status).toBe(200);
    const payload = await res.json();
    expect(payload.status).toBe('updated');

    // Verificar encolado
    const row = db.prepare(`SELECT recipient, message, metadata FROM response_queue ORDER BY id DESC LIMIT 1`).get() as any;
    expect(row).toBeTruthy();
    expect(String(row.recipient)).toBe(GROUP_ID);
    expect(String(row.message)).toBe('');

    const meta = JSON.parse(String(row.metadata || '{}'));
    expect(meta).toEqual({
      kind: 'reaction',
      emoji: '✅',
      chatId: GROUP_ID,
      messageId,
      fromMe: true,
      participant: `${USER}@s.whatsapp.net`
    });

    // Idempotencia del endpoint: segunda llamada no crea nuevo job
    const res2 = await completeHandler(event);
    expect(res2.status).toBe(200);
    const body2 = await res2.json();
    expect(body2.status).toBe('already');

    const cnt = db.prepare(`SELECT COUNT(*) AS c FROM response_queue WHERE metadata = ?`).get(JSON.stringify(meta)) as any;
    expect(Number(cnt.c || 0)).toBe(1);
  });

  it('TTL vencido: no encola reacción', async () => {
    const ins = db.prepare(`
      INSERT INTO tasks (description, due_date, group_id, created_by, completed, completed_at)
      VALUES ('Vieja', NULL, ?, ?, 0, NULL)
    `).run(GROUP_ID, USER) as any;
    const taskId = Number(ins.lastInsertRowid);

    const messageId = 'MSG-old-001';
    const old = new Date(Date.now() - 20 * 24 * 60 * 60 * 1000); // 20 días
    db.prepare(`
      INSERT OR REPLACE INTO task_origins (task_id, chat_id, message_id, created_at)
      VALUES (?, ?, ?, ?)
    `).run(taskId, GROUP_ID, messageId, toIsoSql(old));

    const event: any = {
      locals: { userId: USER },
      params: { id: String(taskId) },
      request: new Request('http://localhost', { method: 'POST' })
    };
    const { POST: completeHandler } = await import('../../apps/web/src/routes/api/tasks/[id]/complete/+server.ts');
    const res = await completeHandler(event);
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.status).toBe('updated');

    const cnt = db.prepare(`SELECT COUNT(*) AS c FROM response_queue`).get() as any;
    expect(Number(cnt.c || 0)).toBe(0);
  });

  it('scope=groups: origen DM no encola', async () => {
    const ins = db.prepare(`
      INSERT INTO tasks (description, due_date, group_id, created_by, completed, completed_at)
      VALUES ('DM scope', NULL, ?, ?, 0, NULL)
    `).run(GROUP_ID, USER) as any;
    const taskId = Number(ins.lastInsertRowid);

    const messageId = 'MSG-dm-001';
    const dmChat = `${USER}@s.whatsapp.net`; // no @g.us
    db.prepare(`
      INSERT OR REPLACE INTO task_origins (task_id, chat_id, message_id, created_at)
      VALUES (?, ?, ?, ?)
    `).run(taskId, dmChat, messageId, toIsoSql(new Date()));

    const event: any = {
      locals: { userId: USER },
      params: { id: String(taskId) },
      request: new Request('http://localhost', { method: 'POST' })
    };
    const { POST: completeHandler } = await import('../../apps/web/src/routes/api/tasks/[id]/complete/+server.ts');
    const res = await completeHandler(event);
    expect(res.status).toBe(200);

    const cnt = db.prepare(`SELECT COUNT(*) AS c FROM response_queue`).get() as any;
    expect(Number(cnt.c || 0)).toBe(0);
  });

  it('sin participant/from_me: metadata no incluye claves opcionales', async () => {
    const ins = db.prepare(`
      INSERT INTO tasks (description, due_date, group_id, created_by, completed, completed_at)
      VALUES ('Sin opcionales', NULL, ?, ?, 0, NULL)
    `).run(GROUP_ID, USER) as any;
    const taskId = Number(ins.lastInsertRowid);

    const messageId = 'MSG-nopts-001';
    db.prepare(`
      INSERT OR REPLACE INTO task_origins (task_id, chat_id, message_id, created_at)
      VALUES (?, ?, ?, ?)
    `).run(taskId, GROUP_ID, messageId, toIsoSql(new Date()));

    const event: any = {
      locals: { userId: USER },
      params: { id: String(taskId) },
      request: new Request('http://localhost', { method: 'POST' })
    };
    const { POST: completeHandler } = await import('../../apps/web/src/routes/api/tasks/[id]/complete/+server.ts');
    const res = await completeHandler(event);
    expect(res.status).toBe(200);

    const row = db.prepare(`SELECT metadata FROM response_queue ORDER BY id DESC LIMIT 1`).get() as any;
    const meta = JSON.parse(String(row.metadata || '{}'));
    expect(meta).toEqual({
      kind: 'reaction',
      emoji: '✅',
      chatId: GROUP_ID,
      messageId
    });
    expect('fromMe' in meta).toBe(false);
    expect('participant' in meta).toBe(false);
  });
});