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

const {
  MODAL_MODULE,
  API_FACTORY,
  UI_HELPERS_MODULE,
  MODAL_MANAGER_MODULE,
  SHOWCASE_MODULE,
  MODEL_TAGS_MODULE,
  UTILS_MODULE,
  TRIGGER_WORDS_MODULE,
  PRESET_TAGS_MODULE,
  MODEL_VERSIONS_MODULE,
  RECIPE_TAB_MODULE,
  I18N_HELPERS_MODULE,
} = vi.hoisted(() => ({
  MODAL_MODULE: new URL('../../../static/js/components/shared/ModelModal.js', import.meta.url).pathname,
  API_FACTORY: new URL('../../../static/js/api/modelApiFactory.js', import.meta.url).pathname,
  UI_HELPERS_MODULE: new URL('../../../static/js/utils/uiHelpers.js', import.meta.url).pathname,
  MODAL_MANAGER_MODULE: new URL('../../../static/js/managers/ModalManager.js', import.meta.url).pathname,
  SHOWCASE_MODULE: new URL('../../../static/js/components/shared/showcase/ShowcaseView.js', import.meta.url).pathname,
  MODEL_TAGS_MODULE: new URL('../../../static/js/components/shared/ModelTags.js', import.meta.url).pathname,
  UTILS_MODULE: new URL('../../../static/js/components/shared/utils.js', import.meta.url).pathname,
  TRIGGER_WORDS_MODULE: new URL('../../../static/js/components/shared/TriggerWords.js', import.meta.url).pathname,
  PRESET_TAGS_MODULE: new URL('../../../static/js/components/shared/PresetTags.js', import.meta.url).pathname,
  MODEL_VERSIONS_MODULE: new URL('../../../static/js/components/shared/ModelVersionsTab.js', import.meta.url).pathname,
  RECIPE_TAB_MODULE: new URL('../../../static/js/components/shared/RecipeTab.js', import.meta.url).pathname,
  I18N_HELPERS_MODULE: new URL('../../../static/js/utils/i18nHelpers.js', import.meta.url).pathname,
}));

vi.mock(UI_HELPERS_MODULE, () => ({
  showToast: vi.fn(),
  openCivitai: vi.fn(),
  copyToClipboard: vi.fn(),
}));

vi.mock(MODAL_MANAGER_MODULE, () => ({
  modalManager: {
    showModal: vi.fn((id, html) => {
      document.body.innerHTML = `<div id="${id}">${html}</div>`;
    }),
    closeModal: vi.fn(),
  },
}));

vi.mock(SHOWCASE_MODULE, () => ({
  scrollToTop: vi.fn(),
  loadExampleImages: vi.fn(),
}));

vi.mock(MODEL_TAGS_MODULE, () => ({
  setupTagEditMode: vi.fn(),
}));

vi.mock(UTILS_MODULE, async (importOriginal) => {
  const actual = await importOriginal();
  return {
    ...actual,
    renderCompactTags: vi.fn(() => ''),
    setupTagTooltip: vi.fn(),
    formatFileSize: vi.fn(() => '1 MB'),
  };
});

vi.mock(TRIGGER_WORDS_MODULE, () => ({
  renderTriggerWords: vi.fn(() => ''),
  setupTriggerWordsEditMode: vi.fn(),
}));

vi.mock(PRESET_TAGS_MODULE, () => ({
  parsePresets: vi.fn(() => ({})),
  renderPresetTags: vi.fn(() => ''),
}));

vi.mock(MODEL_VERSIONS_MODULE, () => ({
  initVersionsTab: vi.fn(() => ({
    load: vi.fn().mockResolvedValue(undefined),
  })),
}));

vi.mock(RECIPE_TAB_MODULE, () => ({
  loadRecipesForModel: vi.fn(),
}));

vi.mock(I18N_HELPERS_MODULE, () => ({
  translate: vi.fn((_, __, fallback) => fallback || ''),
}));

vi.mock('../../../static/js/api/apiConfig.js', () => ({
  MODEL_TYPES: {
    LORA: 'loras',
    CHECKPOINT: 'checkpoints',
    EMBEDDING: 'embeddings'
  }
}));

vi.mock(API_FACTORY, () => ({
  getModelApiClient: vi.fn(),
}));

const SHA256 = 'abcdef1234567890' + 'f'.repeat(48);
const AUTOV3 = '0123456789ab';

function makeModel(overrides = {}) {
  return {
    model_name: 'Hash Model',
    file_path: 'models/hash.safetensors',
    file_name: 'hash.safetensors',
    sha256: SHA256,
    autov3: AUTOV3,
    civitai: {},
    ...overrides,
  };
}

describe('Model modal hash rendering', () => {
  let getModelApiClient;
  let copyToClipboard;

  beforeEach(async () => {
    document.body.innerHTML = '';
    ({ getModelApiClient } = await import(API_FACTORY));
    ({ copyToClipboard } = await import(UI_HELPERS_MODULE));
    getModelApiClient.mockReset();
    copyToClipboard.mockReset();
    getModelApiClient.mockReturnValue({
      fetchModelMetadata: vi.fn().mockResolvedValue(null),
      saveModelMetadata: vi.fn(),
    });
  });

  async function renderModal(model) {
    const { showModelModal } = await import(MODAL_MODULE);
    await showModelModal(model, 'loras');
  }

  it('renders sha256 middle-truncated with the full hash in title and copy button', async () => {
    await renderModal(makeModel());

    const hashItem = document.querySelector('.hash-footnote');
    expect(hashItem).not.toBeNull();

    const value = hashItem.querySelector('.model-hash-value');
    expect(value.textContent).toBe(`${SHA256.slice(0, 10)}\u2026${SHA256.slice(-6)}`);
    expect(value.getAttribute('title')).toBe(SHA256);

    const copyBtn = hashItem.querySelector('[data-action="copy-hash"]');
    expect(copyBtn.dataset.hash).toBe(SHA256);
  });

  it('renders autov3 in full', async () => {
    await renderModal(makeModel());

    const rows = document.querySelectorAll('.hash-footnote .hash-entry');
    expect(rows).toHaveLength(2);
    expect(rows[1].querySelector('.model-hash-value').textContent).toBe(AUTOV3);
    expect(rows[1].querySelector('[data-action="copy-hash"]').dataset.hash).toBe(AUTOV3);
  });

  it.each([null, undefined, ''])('hides the autov3 row when autov3 is %s', async (autov3) => {
    await renderModal(makeModel({ autov3 }));

    const rows = document.querySelectorAll('.hash-footnote .hash-entry');
    expect(rows).toHaveLength(1);
    expect(rows[0].querySelector('.hash-kind').textContent).toBe('SHA256');
  });

  it('renders autov3 alone when sha256 is empty', async () => {
    await renderModal(makeModel({ sha256: '', autov3: AUTOV3 }));

    const rows = document.querySelectorAll('.hash-footnote .hash-entry');
    expect(rows).toHaveLength(1);
    expect(rows[0].querySelector('.hash-kind').textContent).toBe('AutoV3');
  });

  it('hides the footnote entirely when there are no hashes and no civitai ids', async () => {
    await renderModal(makeModel({ sha256: '', autov3: '', civitai: {} }));

    expect(document.querySelector('.hash-footnote')).toBeNull();
  });

  it('renders civitai model and version ids with copy buttons', async () => {
    await renderModal(makeModel({ civitai: { modelId: 12345, id: 67890 } }));

    const group = document.querySelector('.hash-footnote .civitai-id-group');
    expect(group).not.toBeNull();

    const entries = group.querySelectorAll('.civitai-id-entry');
    expect(entries).toHaveLength(2);

    expect(entries[0].querySelector('.hash-kind').textContent).toBe('Model ID');
    expect(entries[0].querySelector('.model-hash-value').textContent).toBe('12345');
    expect(entries[0].querySelector('[data-action="copy-hash"]').dataset.hash).toBe('12345');

    expect(entries[1].querySelector('.hash-kind').textContent).toBe('Version ID');
    expect(entries[1].querySelector('.model-hash-value').textContent).toBe('67890');
    expect(entries[1].querySelector('[data-action="copy-hash"]').dataset.hash).toBe('67890');
  });

  it('hides civitai ids for models without civitai data', async () => {
    await renderModal(makeModel({ civitai: {} }));

    expect(document.querySelector('.hash-footnote .civitai-id-group')).toBeNull();
  });

  it.each([0, '0', null, undefined, ''])('treats civitai id %s as missing', async (missingId) => {
    await renderModal(makeModel({ civitai: { modelId: missingId, id: missingId } }));

    expect(document.querySelector('.hash-footnote .civitai-id-group')).toBeNull();
  });

  it('falls back to snake_case model_id', async () => {
    await renderModal(makeModel({ civitai: { model_id: 777, id: 888 } }));

    const group = document.querySelector('.hash-footnote .civitai-id-group');
    const entries = group.querySelectorAll('.civitai-id-entry');
    expect(entries[0].querySelector('.model-hash-value').textContent).toBe('777');
    expect(entries[1].querySelector('.model-hash-value').textContent).toBe('888');
  });

  it('still renders the footnote when only civitai ids exist', async () => {
    await renderModal(makeModel({ sha256: '', autov3: '', civitai: { modelId: 12345, id: 67890 } }));

    const footnote = document.querySelector('.hash-footnote');
    expect(footnote).not.toBeNull();
    expect(footnote.querySelectorAll('.civitai-id-entry')).toHaveLength(2);
  });

  it('copies the version id with the civitai toast when its copy button is clicked', async () => {
    await renderModal(makeModel({ civitai: { modelId: 12345, id: 67890 } }));

    const entries = document.querySelectorAll('.civitai-id-entry [data-action="copy-hash"]');
    entries[1].click();

    expect(copyToClipboard).toHaveBeenCalledWith('67890', 'Civitai ID copied to clipboard');
  });

  it('copies the full hash when the copy button is clicked', async () => {
    await renderModal(makeModel());

    const copyBtn = document.querySelector('.hash-footnote [data-action="copy-hash"]');
    copyBtn.click();

    expect(copyToClipboard).toHaveBeenCalledWith(SHA256, expect.any(String));
  });
});