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

import {
  isResourceCanvasExportable,
  resolveDownloadablePanelEntries,
  resolveResourceCanvasPanelEntries,
  resolveSelectedPanelEntries,
} from '../src/features/resource-canvas/resourceCanvasAssetTransferModel';
import { ResourceCanvasPanelView } from '../src/features/resource-canvas/ResourceCanvasPanelView';
import type {
  ProjectResource,
  ProjectVersionResourceSummary,
} from '../src/view/project-development/resourceProjectionModel';

afterEach(cleanup);

function createResource(
  overrides: Partial<ProjectResource> = {},
): ProjectResource {
  return {
    id: 'asset:hero',
    category: 'character',
    subtype: 'character',
    label: '主角立绘',
    path: 'assets/hero.png',
    mediaType: 'image/png',
    sourceLabel: '生成',
    taskTitle: null,
    manifestAssetId: 'hero',
    producerTaskId: null,
    externalResourceId: null,
    referenceResourceIds: [],
    dependencies: [],
    dependencyDepth: 0,
    ...overrides,
  };
}

/** 虚拟版本条目：只有版本摘要与合成展示路径，没有对应文件。 */
function createVersionResource(): ProjectResource {
  const version: ProjectVersionResourceSummary = {
    versionId: 'version-1',
    parentVersionId: null,
    projectRevision: 3,
    resourceBindings: [],
    createdReason: 'initial',
    createdAt: 1,
    label: '版本 1',
    childVersionIds: [],
  };
  return createResource({
    id: 'version:version-1',
    category: 'version',
    subtype: 'version',
    label: '项目版本 · 版本 1',
    path: '',
    mediaType: 'application/vnd.genarrative.project-version+json',
    manifestAssetId: null,
    version,
  });
}

function panelEntries() {
  return resolveResourceCanvasPanelEntries([
    {
      resource: createResource(),
      categoryLabel: '角色与对象',
      typeLabel: '图片',
      previewIdentity: null,
      previewStatus: 'idle',
      previewSourceUrl: null,
      previewError: null,
    },
    {
      resource: createVersionResource(),
      categoryLabel: '项目版本',
      typeLabel: '版本',
      previewIdentity: null,
      previewStatus: 'idle',
      previewSourceUrl: null,
      previewError: null,
    },
  ]);
}

describe('资源面板下载口径', () => {
  it('虚拟版本条目不可下载：合成路径不许走到落盘链路', () => {
    const entries = panelEntries();
    const hero = entries[0]!;
    const version = entries[1]!;

    expect(isResourceCanvasExportable(hero)).toBe(true);
    expect(hero.downloadable).toBe(true);
    expect(version.downloadable).toBe(false);

    // 下载目标只保留真能落盘的条目：版本卡的 path 是合成展示串，
    // 传给 `save_local_project_asset_file` 只会失败。
    expect(
      resolveDownloadablePanelEntries(
        resolveSelectedPanelEntries(entries, [
          hero.resourceId,
          version.resourceId,
        ]),
      ).map((entry) => entry.resourceId),
    ).toEqual([hero.resourceId]);
  });

  it('只选中不可下载条目时下载按钮保持禁用，不会变成点了没反应', () => {
    const onDownloadSelection = vi.fn();
    const entries = panelEntries();
    const version = entries[1]!;

    render(
      <ResourceCanvasPanelView
        entries={entries}
        selectedResourceIds={[version.resourceId]}
        onToggleEntry={vi.fn()}
        onSelectAll={vi.fn()}
        onClearSelection={vi.fn()}
        onUploadFiles={vi.fn()}
        onDownloadSelection={onDownloadSelection}
        isUploading={false}
        notice=""
        onClose={vi.fn()}
      />,
    );

    const download = within(
      screen.getByRole('dialog', { name: '资源面板' }),
    ).getByRole('button', { name: '下载' }) as HTMLButtonElement;
    expect(download.disabled).toBe(true);

    fireEvent.click(download);
    expect(onDownloadSelection).not.toHaveBeenCalled();
  });

  it('可下载条目选中时按钮可用，并且上传中把三条关闭路径一起挡住', () => {
    const onDownloadSelection = vi.fn();
    const onClose = vi.fn();
    const entries = panelEntries();
    const hero = entries[0]!;

    const { rerender } = render(
      <ResourceCanvasPanelView
        entries={entries}
        selectedResourceIds={[hero.resourceId]}
        onToggleEntry={vi.fn()}
        onSelectAll={vi.fn()}
        onClearSelection={vi.fn()}
        onUploadFiles={vi.fn()}
        onDownloadSelection={onDownloadSelection}
        isUploading={false}
        notice=""
        onClose={onClose}
      />,
    );

    const panel = () => screen.getByRole('dialog', { name: '资源面板' });
    fireEvent.click(within(panel()).getByRole('button', { name: '下载' }));
    expect(onDownloadSelection).toHaveBeenCalledTimes(1);

    rerender(
      <ResourceCanvasPanelView
        entries={entries}
        selectedResourceIds={[hero.resourceId]}
        onToggleEntry={vi.fn()}
        onSelectAll={vi.fn()}
        onClearSelection={vi.fn()}
        onUploadFiles={vi.fn()}
        onDownloadSelection={onDownloadSelection}
        isUploading
        notice=""
        onClose={onClose}
      />,
    );

    // 上传在飞：× 禁用、Escape 与遮罩都不许把面板关掉（父级上传还在跑）。
    expect(
      (
        within(panel()).getByRole('button', {
          name: '关闭资源面板',
        }) as HTMLButtonElement
      ).disabled,
    ).toBe(true);
    fireEvent.keyDown(window, { key: 'Escape' });
    expect(onClose).not.toHaveBeenCalled();
    fireEvent.mouseDown(panel().parentElement as HTMLElement);
    expect(onClose).not.toHaveBeenCalled();
  });
});