import { readdirSync, readFileSync } from 'node:fs';
import { join } from 'node:path';
import { describe, expect, it } from 'vitest';
import { atmEventSchema, deterministicId, ingestBatchSchema } from '../src/index.ts';

const dir = join(import.meta.dirname, '..', 'fixtures', 'protocol');

describe('protocol v1', () => {
  it('every fixture validates', () => {
    const files = readdirSync(dir).filter((f) => f.endsWith('.json'));
    expect(files.length).toBe(11);
    for (const f of files) {
      const parsed = atmEventSchema.parse(JSON.parse(readFileSync(join(dir, f), 'utf8')));
      expect(parsed.type).toBe(f.replace('.json', ''));
    }
  });

  it('rejects unknown type', () => {
    const r = atmEventSchema.safeParse({ id: '0199d6a0-0000-7000-8000-000000000001', type: 'nope', ts: 1 });
    expect(r.success).toBe(false);
  });

  it('rejects batch with 501 events', () => {
    const ev = JSON.parse(readFileSync(join(dir, 'server_stop.json'), 'utf8'));
    const r = ingestBatchSchema.safeParse({ protocol: 1, events: Array.from({ length: 501 }, () => ev) });
    expect(r.success).toBe(false);
  });

  it('deterministicId is stable', () => {
    expect(deterministicId('a')).toBe(deterministicId('a'));
    expect(deterministicId('a')).not.toBe(deterministicId('b'));
    expect(deterministicId('a')).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-5[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/);
  });
});