import { describe, expect, test } from 'vitest';

import {
  currentVersionResourceBindingIds,
  formatIterationVersionLabel,
  isResourceUsedByCurrentVersion,
} from '../src/features/resource-canvas/resourceCanvasVersionBindingModel';

const versions = [
  {
    versionId: 'version-root',
    parentVersionId: null,
    projectRevision: 3,
    resourceBindings: [
      { slotId: 'asset:asset-player', resourceId: 'asset-player' },
    ],
    createdReason: 'initial' as const,
    createdAt: 1_760_000_000_000,
  },
  {
    versionId: 'version-child',
    parentVersionId: 'version-root',
    projectRevision: 4,
    resourceBindings: [
      { slotId: 'asset:asset-town', resourceId: 'asset-town' },
      // 悬空绑定的 slotId 不是恒等映射，不参与「当前使用」判定。
      { slotId: 'player', resourceId: 'asset-player' },
    ],
    createdReason: 'agent-revision' as const,
    createdAt: 1_760_003_600_000,
  },
];

describe('运行模块版本绑定判定', () => {
  test('falls back to the newest manifest version when no version is selected', () => {
    expect(Array.from(currentVersionResourceBindingIds({ versions }))).toEqual([
      'asset-town',
    ]);
  });

  test('resolves the binding ids of the explicitly selected version', () => {
    expect(
      Array.from(
        currentVersionResourceBindingIds({ versions }, 'version-root'),
      ),
    ).toEqual(['asset-player']);
  });

  test('returns no bindings for a missing version or a manifest without versions', () => {
    expect(
      currentVersionResourceBindingIds({ versions }, 'version-missing').size,
    ).toBe(0);
    expect(currentVersionResourceBindingIds({}).size).toBe(0);
    expect(currentVersionResourceBindingIds({ versions: [] }).size).toBe(0);
  });

  test('marks only registered assets bound by the current version as in use', () => {
    const bindingIds = currentVersionResourceBindingIds(
      { versions },
      'version-root',
    );

    expect(
      isResourceUsedByCurrentVersion(
        { manifestAssetId: 'asset-player' },
        bindingIds,
      ),
    ).toBe(true);
    expect(
      isResourceUsedByCurrentVersion(
        { manifestAssetId: 'asset-town' },
        bindingIds,
      ),
    ).toBe(false);
    // 未登记为 manifest 素材的资源永远不算「当前使用」。
    expect(
      isResourceUsedByCurrentVersion({ manifestAssetId: null }, bindingIds),
    ).toBe(false);
  });

  test('labels a version with its Chinese created reason and creation time', () => {
    expect(formatIterationVersionLabel(versions[0])).toBe(
      `初始版本 · ${new Date(1_760_000_000_000).toLocaleString('zh-CN')}`,
    );
    expect(formatIterationVersionLabel(versions[1])).toBe(
      `智能体修订 · ${new Date(1_760_003_600_000).toLocaleString('zh-CN')}`,
    );
  });
});