import { describe, expect, it } from 'vitest';
import { InMemoryMemoryStore, Persona } from '../src';

describe('Persona initialization', () => {
  it('creates a new isolated persona space from displayName and seed message', async () => {
    const memory = new InMemoryMemoryStore();
    const debug: string[] = [];
    const persona = new Persona('Mina', 'Mina is a careful student who likes quiet cafes.', {
      memory,
      now: '2026-05-01T10:00:00.000Z',
      debug: (event) => { debug.push(event.name); },
      models: {
        factExtractor: {
          async extract(input) {
            return [{
              statement: 'Mina likes quiet cafes.',
              topics: [{ name: 'persona' }, { name: 'Mina' }],
              source: 'test',
            }];
          },
        },
      },
    });

    const space = await persona.ready();
    expect(space.displayName).toBe('Mina');
    expect(space.id).toMatch(/^persona-mina-/);
    expect(await memory.findFacts(space.id, ['persona'])).toHaveLength(1);
    expect(debug).toContain('persona.initialized');
  });

  it('exposes baseSystemPrompt on the persona instance when provided', async () => {
    const memory = new InMemoryMemoryStore();
    const persona = new Persona('Hana', 'Hana is a cheerful barista.', {
      memory,
      now: '2026-05-01T10:00:00.000Z',
      baseSystemPrompt: 'You are a helpful assistant. Always be kind.',
    });

    await persona.ready();
    expect(persona.baseSystemPrompt).toBe('You are a helpful assistant. Always be kind.');
  });

  it('loads an existing persona space by space id without creating another space', async () => {
    const memory = new InMemoryMemoryStore();
    const created = new Persona('Joon', 'Joon is a freelance designer.', { memory, now: '2026-05-01T10:00:00.000Z' });
    const space = await created.ready();

    const loaded = new Persona(space.id, { memory, now: '2026-05-01T11:00:00.000Z' });
    await expect(loaded.ready()).resolves.toMatchObject({ id: space.id, displayName: 'Joon' });
    expect(memory.spaces.size).toBe(1);
  });
});