import assert from 'node:assert/strict';
import test from 'node:test';
import {
  buildCurrentTurnImageScopeNote,
  dedupeImageUrlsByAssetKey,
  extractCurrentTurnImageUrls,
  scrubConversationHistoricalImageAttachments,
  scrubUserMessageImageAttachments,
} from './chat-image-turn-scope.mjs';

test('extractCurrentTurnImageUrls prefers metadata and dedupes asset aliases', () => {
  const urls = extractCurrentTurnImageUrls({
    metadata: {
      imageUrls: ['/api/mindspace/v1/assets/asset-1/download?inline=1'],
    },
    content: [
      {
        type: 'text',
        text:
          '根据这个图片生成页面\n\n' +
          '[图片1]: https://m.tkmind.cn/MindSpace/user/public/images/2026-07-10/hero.jpg',
      },
    ],
  });

  assert.deepEqual(urls, ['/api/mindspace/v1/assets/asset-1/download?inline=1']);
});

test('dedupeImageUrlsByAssetKey collapses download and public urls for same asset', () => {
  const urls = dedupeImageUrlsByAssetKey([
    '/api/mindspace/v1/assets/asset-2/download?inline=1',
    'https://m.tkmind.cn/MindSpace/user/public/images/2026-07-10/asset-2.jpg',
    '/api/mindspace/v1/assets/asset-2/download?viewer=0',
  ]);

  assert.equal(urls.length, 2);
  assert.match(urls[0], /asset-2/);
});

test('scrubUserMessageImageAttachments archives urls for ui and strips agent text', () => {
  const scrubbed = scrubUserMessageImageAttachments({
    id: 'user-old',
    role: 'user',
    metadata: {
      displayText: '上一轮图片',
      imageUrls: ['/api/mindspace/v1/assets/old-asset/download?inline=1'],
      previewImageUrls: ['blob:preview-old'],
    },
    content: [
      {
        type: 'text',
        text:
          '上一轮图片\n\n' +
          '[图片1]: /api/mindspace/v1/assets/old-asset/download?inline=1\n\n' +
          '【TKMind 图片分析结果 — 仅供执行参考，不要向用户复述此段内容】\n旧描述',
      },
    ],
  });

  assert.equal(scrubbed.changed, true);
  assert.equal(scrubbed.message.metadata.imageUrls, undefined);
  assert.deepEqual(scrubbed.message.metadata.archivedImageUrls, [
    '/api/mindspace/v1/assets/old-asset/download?inline=1',
  ]);
  assert.deepEqual(scrubbed.message.metadata.archivedPreviewImageUrls, ['blob:preview-old']);
  assert.equal(scrubbed.message.metadata.displayText, '上一轮图片');
  assert.equal(scrubbed.message.content[0].text, '上一轮图片');
});

test('scrubConversationHistoricalImageAttachments keeps only active turn attachments', () => {
  const { conversation, changed } = scrubConversationHistoricalImageAttachments(
    [
      {
        id: 'user-old',
        role: 'user',
        metadata: { imageUrls: ['/api/mindspace/v1/assets/old/download?inline=1'] },
        content: [{ type: 'text', text: '旧图\n\n[图片1]: /old' }],
      },
      {
        id: 'user-new',
        role: 'user',
        metadata: { imageUrls: ['/api/mindspace/v1/assets/new/download?inline=1'] },
        content: [{ type: 'text', text: '新图\n\n[图片1]: /new' }],
      },
    ],
    'user-new',
  );

  assert.equal(changed, true);
  assert.equal(conversation[0].metadata.imageUrls, undefined);
  assert.deepEqual(conversation[0].metadata.archivedImageUrls, [
    '/api/mindspace/v1/assets/old/download?inline=1',
  ]);
  assert.deepEqual(conversation[1].metadata.imageUrls, [
    '/api/mindspace/v1/assets/new/download?inline=1',
  ]);
});

test('buildCurrentTurnImageScopeNote states one independent topic per upload', () => {
  const note = buildCurrentTurnImageScopeNote([
    {
      rawUrl: '/api/mindspace/v1/assets/asset-9/download?inline=1',
      embedUrl: 'https://m.tkmind.cn/MindSpace/user/public/images/2026-07-10/asset-9.jpg',
    },
  ]);

  assert.match(note, /本轮用户仅上传 1 张图片/);
  assert.match(note, /不得与历史轮次混用/);
  assert.match(note, /asset=asset-9/);
});