/**
 * SearchBar Component Tests
 * Verifies search UI rendering and interactions
 */

import { describe, it, expect, beforeEach, vi } from 'vitest';
import { mount } from '@vue/test-utils';
import { ref } from 'vue';
import SearchBar from '../../../../src/components/gamemaster/SearchBar.vue';
import { useGamemasterSearch } from '../../../../src/composables/useGamemasterSearch.js';

vi.mock('../../../../src/composables/useGamemasterSearch.js', () => ({
  useGamemasterSearch: vi.fn()
}));

const createSearchMock = overrides => ({
  searchQuery: ref(''),
  searchResults: ref([]),
  currentResultIndex: ref(0),
  isSearching: ref(false),
  searchError: ref(null),
  searchHistory: { history: ref([]) },
  clearSearch: vi.fn(),
  goToNextResult: vi.fn(),
  goToPrevResult: vi.fn(),
  applyHistoryItem: vi.fn(),
  currentResultLineNumber: ref(null),
  resultCountDisplay: ref('0 results'),
  hasSearchResults: ref(false),
  ...overrides
});

describe('SearchBar Component', () => {
  let mockSearch;

  beforeEach(() => {
    mockSearch = createSearchMock();
    useGamemasterSearch.mockReturnValue(mockSearch);
  });

  it('renders the search input', () => {
    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    const input = wrapper.find('input.search-input');
    expect(input.exists()).toBe(true);
    expect(input.attributes('placeholder')).toContain('Search in file');
  });

  it('disables input when fileLines are empty', () => {
    const wrapper = mount(SearchBar, {
      props: {
        fileLines: [],
        displayLines: []
      }
    });

    const input = wrapper.find('input.search-input');
    expect(input.attributes('disabled')).toBeDefined();
  });

  it('shows clear button when searchQuery is not empty', async () => {
    mockSearch.searchQuery.value = 'Pikachu';
    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    const clearButton = wrapper.find('button.btn-clear');
    expect(clearButton.exists()).toBe(true);

    await clearButton.trigger('click');
    expect(mockSearch.clearSearch).toHaveBeenCalled();
  });

  it('renders search results summary and line number', () => {
    mockSearch.hasSearchResults.value = true;
    mockSearch.resultCountDisplay.value = '2 / 5';
    mockSearch.currentResultLineNumber.value = 42;

    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    const results = wrapper.find('.search-results');
    expect(results.exists()).toBe(true);
    expect(results.text()).toContain('2 / 5');
    expect(results.text()).toContain('Line 42');

    const titleSpan = results.find('span');
    expect(titleSpan.attributes('title')).toBe('Line 42');
  });

  it('triggers next/previous navigation', async () => {
    mockSearch.hasSearchResults.value = true;

    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    const buttons = wrapper.findAll('button.btn-nav');
    expect(buttons.length).toBe(2);

    await buttons[0].trigger('click');
    await buttons[1].trigger('click');

    expect(mockSearch.goToPrevResult).toHaveBeenCalled();
    expect(mockSearch.goToNextResult).toHaveBeenCalled();
  });

  it('renders search history items and applies selection', async () => {
    mockSearch.searchHistory.history.value = ['Pikachu', 'Charizard'];

    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    const historyButtons = wrapper.findAll('button.history-item');
    expect(historyButtons.length).toBe(2);

    await historyButtons[0].trigger('click');
    expect(mockSearch.applyHistoryItem).toHaveBeenCalledWith('Pikachu');
  });

  it('shows error and searching status', () => {
    mockSearch.searchError.value = 'Worker failed';
    mockSearch.isSearching.value = true;

    const wrapper = mount(SearchBar, {
      props: {
        fileLines: ['line one'],
        displayLines: []
      }
    });

    expect(wrapper.find('.search-error').text()).toContain('Worker failed');
    expect(wrapper.find('.search-status').text()).toContain('Searching');
  });
});