/** @vitest-environment jsdom */
import {
  cleanup,
  fireEvent,
  render,
  screen,
  within,
} from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import { afterEach, describe, expect, it, vi } from 'vitest';

import { ImageAssetSelector } from '../src/view/ui-editor/components/Inspector/Components/ImageAssetSelector';

const sprites = {
  hero: {
    asset_id: 'hero',
    metadata: { name: '主角', asset_type: 'sprite' },
    path: 'assets/hero.png',
    pixel_size: [32, 32] as [number, number],
    pixels_per_unit: 1,
    border: { left: 0, right: 0, top: 0, bottom: 0 },
  },
  enemy: {
    asset_id: 'enemy',
    metadata: { name: '敌人', asset_type: 'sprite' },
    path: 'assets/enemy.png',
    pixel_size: [32, 32] as [number, number],
    pixels_per_unit: 1,
    border: { left: 0, right: 0, top: 0, bottom: 0 },
  },
};

function renderSelector(
  value: string | null = null,
  onChange = vi.fn(),
  previewUrls: Record<string, string> = {},
  selectorSprites: typeof sprites = sprites,
) {
  return render(
    <ImageAssetSelector
      value={value}
      sprites={selectorSprites}
      previewUrls={previewUrls}
      readOnly={false}
      onChange={onChange}
    />,
  );
}

describe('ImageAssetSelector', () => {
  afterEach(() => cleanup());

  it('selects a sprite and clears the selection from the modal', async () => {
    const user = userEvent.setup();
    const onChange = vi.fn();
    renderSelector(null, onChange);

    await user.click(screen.getByRole('button', { name: '选择素材' }));
    expect(screen.getByRole('dialog', { name: '选择图片素材' })).toBeTruthy();
    await user.click(screen.getByRole('button', { name: /主角/ }));
    expect(onChange).toHaveBeenCalledWith('hero');
    expect(screen.queryByRole('dialog')).toBeNull();

    await user.click(screen.getByRole('button', { name: '选择素材' }));
    await user.click(screen.getByRole('button', { name: /清除选择/ }));
    expect(onChange).toHaveBeenLastCalledWith(null);
  });

  it('shows preview images, placeholders, and invalid references', async () => {
    const user = userEvent.setup();
    renderSelector('missing', vi.fn(), { hero: 'data:image/png;base64,abc' });

    expect(screen.getByText('素材不存在（missing）')).toBeTruthy();
    await user.click(screen.getByRole('button', { name: '更换素材' }));
    const dialog = screen.getByRole('dialog', { name: '选择图片素材' });
    expect(within(dialog).getByAltText('主角')).toBeTruthy();
    expect(within(dialog).getByText('素材不存在')).toBeTruthy();
    expect(
      within(dialog).getByRole('button', { name: /清除选择/ }),
    ).toBeTruthy();
  });

  it('cannot open while read only', () => {
    render(
      <ImageAssetSelector
        value="hero"
        sprites={sprites}
        previewUrls={{}}
        readOnly
        onChange={vi.fn()}
      />,
    );

    expect(screen.getByRole('button', { name: '更换素材' })).toHaveProperty(
      'disabled',
      true,
    );
  });

  it('retries a preview when its URL is regenerated', async () => {
    const user = userEvent.setup();
    const view = renderSelector(null, vi.fn(), {
      hero: 'data:image/png;base64,first',
    });

    await user.click(screen.getByRole('button', { name: '选择素材' }));
    const dialog = screen.getByRole('dialog', { name: '选择图片素材' });
    const image = within(dialog).getByAltText('主角');
    fireEvent.error(image);
    expect(within(dialog).queryByAltText('主角')).toBeNull();

    view.rerender(
      <ImageAssetSelector
        value={null}
        sprites={sprites}
        previewUrls={{ hero: 'data:image/png;base64,regenerated' }}
        readOnly={false}
        onChange={vi.fn()}
      />,
    );

    expect(
      within(screen.getByRole('dialog', { name: '选择图片素材' })).getByAltText(
        '主角',
      ),
    ).toBeTruthy();
  });

  it('supports keyboard activation for sprite cards', async () => {
    const user = userEvent.setup();
    const onChange = vi.fn();
    renderSelector(null, onChange);
    await user.click(screen.getByRole('button', { name: '选择素材' }));
    const hero = screen.getByRole('button', { name: /主角/ });
    hero.focus();
    await user.keyboard('{Enter}');
    expect(onChange).toHaveBeenCalledWith('hero');
  });

  it('closes when the modal backdrop is clicked', async () => {
    const user = userEvent.setup();
    renderSelector();
    await user.click(screen.getByRole('button', { name: '选择素材' }));
    const dialog = screen.getByRole('dialog', { name: '选择图片素材' });
    const overlay = dialog.parentElement;
    expect(overlay).toBeTruthy();
    await user.click(overlay!);
    expect(screen.queryByRole('dialog', { name: '选择图片素材' })).toBeNull();
  });

  it('shows an empty state when no sprites are available', async () => {
    const user = userEvent.setup();
    renderSelector(null, vi.fn(), {}, {});
    await user.click(screen.getByRole('button', { name: '选择素材' }));
    const dialog = screen.getByRole('dialog', { name: '选择图片素材' });
    expect(within(dialog).getByText('暂无可用素材')).toBeTruthy();
    expect(
      within(dialog).getByRole('button', { name: /清除选择/ }),
    ).toBeTruthy();
  });
});