import { afterEach, beforeEach, describe, expect, it } from 'vitest';

import { IdentityDB } from '../src/core/identity-db';

describe('IdentityDB topic and fact writes', () => {
  let db: IdentityDB;

  beforeEach(async () => {
    db = await IdentityDB.connect({ client: 'sqlite', filename: ':memory:' });
    await db.initialize();
  });

  afterEach(async () => {
    await db.close();
  });

  it('deduplicates topics by normalized name during upsert', async () => {
    const first = await db.upsertTopic({
      name: 'TypeScript',
      category: 'entity',
      granularity: 'concrete',
    });

    const second = await db.upsertTopic({
      name: '  typescript  ',
      category: 'entity',
      granularity: 'concrete',
    });

    expect(second.id).toBe(first.id);
    expect(second.normalizedName).toBe('typescript');

    const topics = await db.listTopics({ includeFacts: false });
    expect(topics).toHaveLength(1);
  });

  it('adds one fact that links multiple topics', async () => {
    const fact = await db.addFact({
      statement: 'I have worked with TypeScript since 2025.',
      topics: [
        { name: 'I', category: 'entity', granularity: 'concrete', role: 'subject' },
        { name: 'TypeScript', category: 'entity', granularity: 'concrete', role: 'object' },
        { name: '2025', category: 'temporal', granularity: 'concrete', role: 'time' },
      ],
    });

    expect(fact.statement).toBe('I have worked with TypeScript since 2025.');
    expect(fact.topics.map((topic) => topic.name)).toEqual(['I', 'TypeScript', '2025']);

    const typeScriptFacts = await db.getTopicFacts('TypeScript');
    expect(typeScriptFacts).toHaveLength(1);
    expect(typeScriptFacts[0]?.statement).toBe('I have worked with TypeScript since 2025.');
  });
});