const CookieList = require('../src/cookie-list');
const PropertyList = require('../src/property-list');
const ReadOnlyPropertyList = require('../src/readonly-property-list');

describe('CookieList', () => {
  const mockCookies = [
    { key: 'session', value: 'abc123' },
    { key: 'token', value: 'xyz789' },
    { key: 'theme', value: 'dark' }
  ];

  function createCookieList(overrides = {}) {
    return new CookieList({
      getUrl: overrides.getUrl || (() => 'https://example.com'),
      interpolate: overrides.interpolate || ((str) => str),
      createCookieJar: overrides.createCookieJar || (() => ({})),
      getCookiesForUrl: overrides.getCookiesForUrl || (() => mockCookies)
    });
  }

  // ── Inheritance ────────────────────────────────────────────────────────

  test('extends PropertyList and ReadOnlyPropertyList', () => {
    const list = createCookieList();
    expect(list).toBeInstanceOf(ReadOnlyPropertyList);
    expect(list).toBeInstanceOf(PropertyList);
    expect(list).toBeInstanceOf(CookieList);
  });

  test('inherits read methods from ReadOnlyPropertyList', () => {
    const list = createCookieList();
    expect(list.get('session')).toBe('abc123');
    expect(list.all()).toHaveLength(3);
    expect(list.count()).toBe(3);
  });

  test('normalizes tough-cookie objects to plain objects', () => {
    const toughCookies = [
      { key: 'a', value: '1', domain: 'example.com', path: '/', secure: true, httpOnly: false, expires: null, _internal: 'hidden', creation: new Date(), store: { circular: true } }
    ];
    const list = createCookieList({
      getCookiesForUrl: () => toughCookies
    });
    const items = list.all();
    expect(items).toHaveLength(1);
    expect(items[0]).toEqual({ key: 'a', value: '1', domain: 'example.com', path: '/', secure: true, httpOnly: false, expires: null });
    expect(items[0]).not.toHaveProperty('_internal');
    expect(items[0]).not.toHaveProperty('creation');
    expect(items[0]).not.toHaveProperty('store');
  });

  test('toJSON() returns cloned array of normalized cookies', () => {
    const list = createCookieList();
    const json = list.toJSON();
    expect(json).toHaveLength(3);
    expect(json[0]).toEqual({ key: 'session', value: 'abc123' });
  });

  // ── Read methods with no URL ───────────────────────────────────────────

  describe('read methods when URL is falsy', () => {
    let list;

    beforeEach(() => {
      list = createCookieList({ getUrl: () => null });
    });

    test('all() returns empty array', () => {
      expect(list.all()).toEqual([]);
    });

    test('count() returns 0', () => {
      expect(list.count()).toBe(0);
    });

    test('get() returns undefined', () => {
      expect(list.get('session')).toBeUndefined();
    });

    test('has() returns false', () => {
      expect(list.has('session')).toBe(false);
    });
  });

  // ── Write methods (cookie jar delegation) ──────────────────────────────

  describe('add()', () => {
    test('delegates to jar.setCookie', () => {
      const setCookie = jest.fn().mockResolvedValue('ok');
      const list = createCookieList({
        createCookieJar: () => ({ setCookie })
      });

      list.add({ name: 'foo', value: 'bar' });
      expect(setCookie).toHaveBeenCalledWith('https://example.com', { name: 'foo', value: 'bar' }, undefined);
    });

    test('passes callback to jar.setCookie', () => {
      const setCookie = jest.fn();
      const cb = jest.fn();
      const list = createCookieList({
        createCookieJar: () => ({ setCookie })
      });

      list.add({ name: 'foo', value: 'bar' }, cb);
      expect(setCookie).toHaveBeenCalledWith('https://example.com', { name: 'foo', value: 'bar' }, cb);
    });

    test('returns Promise.resolve() when no URL', async () => {
      const list = createCookieList({ getUrl: () => null });
      const result = list.add({ name: 'foo', value: 'bar' });
      await expect(result).resolves.toBeUndefined();
    });

    test('calls callback with undefined when no URL', () => {
      const cb = jest.fn();
      const list = createCookieList({ getUrl: () => '' });
      list.add({ name: 'foo', value: 'bar' }, cb);
      expect(cb).toHaveBeenCalledWith(undefined);
    });
  });

  describe('upsert()', () => {
    test('delegates to jar.setCookie', () => {
      const setCookie = jest.fn().mockResolvedValue('ok');
      const list = createCookieList({
        createCookieJar: () => ({ setCookie })
      });

      list.upsert({ name: 'foo', value: 'bar' });
      expect(setCookie).toHaveBeenCalledWith('https://example.com', { name: 'foo', value: 'bar' }, undefined);
    });

    test('returns Promise.resolve() when no URL', async () => {
      const list = createCookieList({ getUrl: () => null });
      const result = list.upsert({ name: 'foo', value: 'bar' });
      await expect(result).resolves.toBeUndefined();
    });

    test('rejects with error when cookieObj is null', async () => {
      const list = createCookieList();
      await expect(list.upsert(null)).rejects.toThrow('cookieObj must be a non-null object');
    });

    test('rejects with error when cookieObj is a string', async () => {
      const list = createCookieList();
      await expect(list.upsert('not-an-object')).rejects.toThrow('cookieObj must be a non-null object');
    });

    test('calls callback with error when cookieObj is null', () => {
      const cb = jest.fn();
      const list = createCookieList();
      list.upsert(null, cb);
      expect(cb).toHaveBeenCalledWith(expect.any(Error));
      expect(cb.mock.calls[0][0].message).toBe('cookieObj must be a non-null object');
    });
  });

  describe('remove()', () => {
    test('delegates to jar.deleteCookie', () => {
      const deleteCookie = jest.fn().mockResolvedValue('ok');
      const list = createCookieList({
        createCookieJar: () => ({ deleteCookie })
      });

      list.remove('session');
      expect(deleteCookie).toHaveBeenCalledWith('https://example.com', 'session', undefined);
    });

    test('passes callback', () => {
      const deleteCookie = jest.fn();
      const cb = jest.fn();
      const list = createCookieList({
        createCookieJar: () => ({ deleteCookie })
      });

      list.remove('session', cb);
      expect(deleteCookie).toHaveBeenCalledWith('https://example.com', 'session', cb);
    });

    test('returns Promise.resolve() when no URL', async () => {
      const list = createCookieList({ getUrl: () => null });
      const result = list.remove('session');
      await expect(result).resolves.toBeUndefined();
    });

    test('returns Promise.resolve() when no name', async () => {
      const list = createCookieList();
      const result = list.remove(null);
      await expect(result).resolves.toBeUndefined();
    });

    test('calls callback when no name', () => {
      const cb = jest.fn();
      const list = createCookieList();
      list.remove('', cb);
      expect(cb).toHaveBeenCalledWith(undefined);
    });
  });

  describe('clear()', () => {
    test('delegates to jar.deleteCookies', () => {
      const deleteCookies = jest.fn().mockResolvedValue('ok');
      const list = createCookieList({
        createCookieJar: () => ({ deleteCookies })
      });

      list.clear();
      expect(deleteCookies).toHaveBeenCalledWith('https://example.com', undefined);
    });

    test('passes callback', () => {
      const deleteCookies = jest.fn();
      const cb = jest.fn();
      const list = createCookieList({
        createCookieJar: () => ({ deleteCookies })
      });

      list.clear(cb);
      expect(deleteCookies).toHaveBeenCalledWith('https://example.com', cb);
    });

    test('returns Promise.resolve() when no URL', async () => {
      const list = createCookieList({ getUrl: () => null });
      const result = list.clear();
      await expect(result).resolves.toBeUndefined();
    });
  });

  describe('delete()', () => {
    test('delegates to jar.deleteCookie', () => {
      const deleteCookie = jest.fn().mockResolvedValue('ok');
      const list = createCookieList({
        createCookieJar: () => ({ deleteCookie })
      });

      list.delete('session');
      expect(deleteCookie).toHaveBeenCalledWith('https://example.com', 'session', undefined);
    });

    test('returns Promise.resolve() when no URL', async () => {
      const list = createCookieList({ getUrl: () => null });
      const result = list.delete('session');
      await expect(result).resolves.toBeUndefined();
    });

    test('returns Promise.resolve() when no name', async () => {
      const list = createCookieList();
      const result = list.delete(null);
      await expect(result).resolves.toBeUndefined();
    });
  });

  // ── jar() ──────────────────────────────────────────────────────────────

  describe('jar()', () => {
    let mockJar;
    let list;

    beforeEach(() => {
      mockJar = {
        getCookie: jest.fn().mockResolvedValue({ key: 'session', value: 'abc' }),
        getCookies: jest.fn().mockResolvedValue([]),
        setCookie: jest.fn().mockResolvedValue('ok'),
        setCookies: jest.fn().mockResolvedValue('ok'),
        clear: jest.fn().mockResolvedValue('ok'),
        deleteCookies: jest.fn().mockResolvedValue('ok'),
        deleteCookie: jest.fn().mockResolvedValue('ok'),
        hasCookie: jest.fn().mockResolvedValue(true)
      };
      list = createCookieList({
        interpolate: (str) => str.replace('{{host}}', 'example.com'),
        createCookieJar: () => mockJar
      });
    });

    test('returns an object with all jar methods', () => {
      const jar = list.jar();
      expect(jar).toHaveProperty('getCookie');
      expect(jar).toHaveProperty('getCookies');
      expect(jar).toHaveProperty('setCookie');
      expect(jar).toHaveProperty('setCookies');
      expect(jar).toHaveProperty('clear');
      expect(jar).toHaveProperty('deleteCookies');
      expect(jar).toHaveProperty('deleteCookie');
      expect(jar).toHaveProperty('hasCookie');
    });

    test('getCookie interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.getCookie('https://{{host}}/path', 'session', cb);
      expect(mockJar.getCookie).toHaveBeenCalledWith('https://example.com/path', 'session', cb);
    });

    test('getCookies interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.getCookies('https://{{host}}/path', cb);
      expect(mockJar.getCookies).toHaveBeenCalledWith('https://example.com/path', cb);
    });

    test('setCookie interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.setCookie('https://{{host}}/path', 'name', 'value', cb);
      expect(mockJar.setCookie).toHaveBeenCalledWith('https://example.com/path', 'name', 'value', cb);
    });

    test('setCookies interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.setCookies('https://{{host}}/path', [{ name: 'a' }], cb);
      expect(mockJar.setCookies).toHaveBeenCalledWith('https://example.com/path', [{ name: 'a' }], cb);
    });

    test('clear delegates directly', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.clear(cb);
      expect(mockJar.clear).toHaveBeenCalledWith(cb);
    });

    test('deleteCookies interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.deleteCookies('https://{{host}}/path', cb);
      expect(mockJar.deleteCookies).toHaveBeenCalledWith('https://example.com/path', cb);
    });

    test('deleteCookie interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.deleteCookie('https://{{host}}/path', 'session', cb);
      expect(mockJar.deleteCookie).toHaveBeenCalledWith('https://example.com/path', 'session', cb);
    });

    test('hasCookie interpolates URL and delegates', () => {
      const jar = list.jar();
      const cb = jest.fn();
      jar.hasCookie('https://{{host}}/path', 'session', cb);
      expect(mockJar.hasCookie).toHaveBeenCalledWith('https://example.com/path', 'session', cb);
    });
  });
});