import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { mkdtempSync, rmSync } from 'fs';
import { tmpdir } from 'os';
import { join } from 'path';
import { createHandoff, listHandoffs, getHandoff } from '../src/core/services/handoffService.js';

describe('handoffService', () => {
  let cwd: string;

  beforeEach(() => { cwd = mkdtempSync(join(tmpdir(), 'ah-hof-')); });
  afterEach(() => { rmSync(cwd, { recursive: true, force: true }); });

  it('creates and reads a handoff', () => {
    const h = createHandoff(cwd, { fromRole: 'architect', toRole: 'implementer', summary: 's', context: 'c' });
    expect(h.id).toBe('HOF-0001');
    expect(getHandoff(cwd, h.id).handoff.summary).toBe('s');
    expect(listHandoffs(cwd)).toHaveLength(1);
  });

  it('listHandoffs carries fromRole and toRole in the index entry', () => {
    createHandoff(cwd, {
      fromRole: 'architect',
      toRole: 'implementer',
      summary: 'Hand over design',
      context: 'done',
    });
    const items = listHandoffs(cwd);
    expect(items).toHaveLength(1);
    expect(items[0].fromRole).toBe('architect');
    expect(items[0].toRole).toBe('implementer');
    // agent names default to undefined when not supplied
    expect(items[0].fromAgent == null).toBe(true);
    expect(items[0].toAgent == null).toBe(true);
  });

  it('listHandoffs carries fromAgent and toAgent when supplied', () => {
    createHandoff(cwd, {
      fromRole: 'reviewer',
      toRole: 'implementer',
      fromAgent: 'claude',
      toAgent: 'codex',
      summary: 'Review complete',
      context: 'lgtm',
    });
    const items = listHandoffs(cwd);
    expect(items[0].fromAgent).toBe('claude');
    expect(items[0].toAgent).toBe('codex');
  });
});