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

import type {
  GameCreationAppAssetManifestEntry,
  GameCreationAppManifest,
} from '../../../packages/shared/src/contracts/gameCreationApp';
import {
  ensureUiDesignResourceForPrototype,
  findLinkedUiDesignResource,
} from '../src/features/ui-editor/uiDesignResourceBridge';

function manifestWithPrototype(): GameCreationAppManifest {
  const prototype: GameCreationAppAssetManifestEntry = {
    id: 'prototype-asset',
    kind: 'ui-prototype',
    mediaType: 'image/png',
    localPath: 'assets/ui-prototype.png',
    source: { kind: 'canvas', referenceResourceIds: [] },
    imageSequenceFrames: null,
    imageSequenceDurationMs: null,
  };
  return {
    schemaVersion: 'game-creator-app.v1',
    projectId: 'project-1',
    projectName: 'UI bridge',
    tasks: [],
    assets: [prototype],
    versions: [],
    godotProjectRoot: null,
    preview: null,
    resourceCanvasLayouts: [],
  } as unknown as GameCreationAppManifest;
}

describe('ui design resource bridge', () => {
  it('finds only a JSON UI resource linked to the exact prototype asset', () => {
    const manifest = manifestWithPrototype();
    manifest.assets.push({
      id: 'unrelated-ui',
      kind: 'UI',
      mediaType: 'application/json',
      localPath: 'ui/unrelated.json',
      source: { kind: 'generated', referenceResourceIds: ['other'] },
      imageSequenceFrames: null,
      imageSequenceDurationMs: null,
    });
    expect(findLinkedUiDesignResource(manifest, 'prototype-asset')).toBeNull();
    manifest.assets.push({
      id: 'linked-ui',
      kind: 'UI',
      mediaType: 'application/json',
      localPath: 'ui/linked.json',
      source: { kind: 'generated', referenceResourceIds: ['prototype-asset'] },
      imageSequenceFrames: null,
      imageSequenceDurationMs: null,
    });
    expect(findLinkedUiDesignResource(manifest, 'prototype-asset')?.id).toBe(
      'linked-ui',
    );
  });

  it('reuses workflow resources linked by the prototype canonical resource id', () => {
    const manifest = manifestWithPrototype();
    manifest.assets[0]!.source.resourceId = 'canvas-resource-1';
    manifest.assets.push({
      id: 'workflow-ui',
      kind: 'UI',
      mediaType: 'application/json',
      localPath: 'ui/workflow.json',
      source: {
        kind: 'generated',
        resourceId: 'ui-workflow-page-1',
        referenceResourceIds: ['canvas-resource-1', 'design-resource-1'],
      },
      imageSequenceFrames: null,
      imageSequenceDurationMs: null,
    });
    expect(findLinkedUiDesignResource(manifest, 'prototype-asset')?.id).toBe(
      'workflow-ui',
    );
  });

  it('prefers a completed workflow resource when an older bridge resource also matches', () => {
    const manifest = manifestWithPrototype();
    manifest.assets.push(
      {
        id: 'bridge-ui',
        kind: 'UI',
        mediaType: 'application/json',
        localPath: 'ui/UI 设计 1.json',
        source: {
          kind: 'generated',
          referenceResourceIds: ['prototype-asset'],
        },
        imageSequenceFrames: null,
        imageSequenceDurationMs: null,
      },
      {
        id: 'completed-ui',
        kind: 'UI',
        mediaType: 'application/json',
        localPath: 'ui/ui-workflow-page.json',
        source: {
          kind: 'generated',
          generationKind: 'ui-workflow.completed',
          referenceResourceIds: ['prototype-asset'],
        },
        imageSequenceFrames: null,
        imageSequenceDurationMs: null,
      },
    );
    expect(findLinkedUiDesignResource(manifest, 'prototype-asset')?.id).toBe(
      'completed-ui',
    );
  });

  it('reuses an existing link without invoking a mutating command', async () => {
    const manifest = manifestWithPrototype();
    const linked = {
      id: 'linked-ui',
      kind: 'UI',
      mediaType: 'application/json',
      localPath: 'ui/linked.json',
      source: {
        kind: 'generated' as const,
        referenceResourceIds: ['prototype-asset'],
      },
      imageSequenceFrames: null,
      imageSequenceDurationMs: null,
    };
    manifest.assets.push(linked);
    const invoke = vi.fn();
    const result = await ensureUiDesignResourceForPrototype({
      projectPath: '/project',
      manifest,
      prototypeAssetId: 'prototype-asset',
      invoke,
    });
    expect(result.asset).toEqual(linked);
    expect(result.created).toBe(false);
    expect(invoke).not.toHaveBeenCalled();
  });

  it('invokes the atomic Tauri bridge for a missing link', async () => {
    const manifest = manifestWithPrototype();
    const result = {
      asset: {
        id: 'new-ui',
        kind: 'UI',
        mediaType: 'application/json',
        localPath: 'ui/UI 设计 1.json',
        source: {
          kind: 'generated' as const,
          referenceResourceIds: ['prototype-asset'],
        },
        imageSequenceFrames: null,
        imageSequenceDurationMs: null,
      },
      manifest: { ...manifest, assets: [...manifest.assets] },
      committedProjectRevision: 7,
      created: true,
    };
    const invoke = vi.fn().mockResolvedValue(result);
    await expect(
      ensureUiDesignResourceForPrototype({
        projectPath: '/project',
        manifest,
        prototypeAssetId: ' prototype-asset ',
        invoke,
      }),
    ).resolves.toEqual(result);
    expect(invoke).toHaveBeenCalledWith(
      'ensure_ui_design_resource_for_prototype',
      {
        input: {
          projectPath: '/project',
          expectedProjectId: 'project-1',
          prototypeAssetId: 'prototype-asset',
        },
      },
    );
  });

  it('rejects non-prototype assets before invoking Tauri', async () => {
    const manifest = manifestWithPrototype();
    const invoke = vi.fn();
    await expect(
      ensureUiDesignResourceForPrototype({
        projectPath: '/project',
        manifest,
        prototypeAssetId: 'missing',
        invoke,
      }),
    ).rejects.toThrow('目标资源不是 UI 原型图片');
    expect(invoke).not.toHaveBeenCalled();
  });
});