import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as smartchat from '../ts/index.js';

tap.test('should export ChatSession class', async () => {
  expect(smartchat.ChatSession).toBeTypeOf('function');
});

tap.test('ChatSession should initialize with options', async () => {
  // Use a mock model (just needs to be an object)
  const mockModel = {} as any;
  const session = new smartchat.ChatSession({ model: mockModel });
  expect(session).toBeInstanceOf(smartchat.ChatSession);
});

tap.test('ChatSession should track usage', async () => {
  const mockModel = {} as any;
  const session = new smartchat.ChatSession({ model: mockModel });
  const usage = session.getUsage();
  expect(usage.turns).toEqual(0);
  expect(usage.totalTokens).toEqual(0);
});

tap.test('ChatSession should manage messages', async () => {
  const mockModel = {} as any;
  const session = new smartchat.ChatSession({ model: mockModel });

  expect(session.getMessages()).toHaveLength(0);

  // Set messages
  const fakeMessages = [{ role: 'user' as const, content: 'hello' }] as any[];
  session.setMessages(fakeMessages);
  expect(session.getMessages()).toHaveLength(1);

  // Clear
  session.clear();
  expect(session.getMessages()).toHaveLength(0);
});

tap.test('ChatSession should report busy state', async () => {
  const mockModel = {} as any;
  const session = new smartchat.ChatSession({ model: mockModel });
  expect(session.isBusy()).toBeFalse();
});

export default tap.start();