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

import { __doubaoTestUtils } from './doubao'

const {
  buildSourceItem,
  dedupeSourceItems,
  isNonCitationAssetDomain,
  isNonCitationAssetUrl,
  parseDoubaoStreamBody,
  resolveDoubaoSubmissionAnswer,
} = __doubaoTestUtils

describe('doubao adapter helpers', () => {
  it('filters byteimg and bytednsdoc asset CDN links from source items', () => {
    expect(isNonCitationAssetDomain('p3-spider-image-sign.byteimg.com')).toBe(true)
    expect(isNonCitationAssetDomain('lf3-static.bytednsdoc.com')).toBe(true)
    expect(isNonCitationAssetUrl('https://p11-spider-image-sign.byteimg.com/obj/logo.png')).toBe(
      true,
    )
    expect(isNonCitationAssetUrl('https://m.sohu.com/a/1012750625_122649842/')).toBe(false)

    expect(
      buildSourceItem({
        url: 'https://p3-spider-image-sign.byteimg.com/img/logo.jpeg',
        title: 'logo',
        site_name: 'byteimg.com',
      }),
    ).toBeNull()
    expect(
      buildSourceItem({
        url: 'https://example.com/article',
        title: '真实来源',
      }),
    ).toMatchObject({
      url: 'https://example.com/article',
      host: 'example.com',
    })
  })

  it('dedupes and drops asset CDN links parsed from Doubao streams', () => {
    const body = [
      'event: STREAM_CHUNK',
      'data: {"references":[{"url":"https://p11-spider-image-sign.byteimg.com/logo.jpeg","title":"logo"},{"url":"https://m.sohu.com/a/1012750625_122649842/","title":"真实来源"}],"text_block":{"text":"回答"}}',
      '',
      '',
    ].join('\n')

    const summary = parseDoubaoStreamBody(body)
    expect(summary.search_results).toHaveLength(1)
    expect(summary.search_results[0]?.url).toBe('https://m.sohu.com/a/1012750625_122649842/')

    expect(
      dedupeSourceItems([
        {
          url: 'https://static.bytednsdoc.com/logo.png',
          normalized_url: 'https://static.bytednsdoc.com/logo.png',
        },
        { url: 'https://example.com/a', normalized_url: 'https://example.com/a' },
      ]),
    ).toHaveLength(1)
  })

  it('uses thinking-chain reference metadata to fill unknown Doubao source titles', () => {
    const body = [
      'event: STREAM_CHUNK',
      'data: {"references":[{"url":"https://example.com/report","title":"unkown"}],"thinking":{"references":[{"url":"https://example.com/report#section","title":"思考链路里的真实标题","site_name":"示例站点"}]},"text_block":{"text":"回答"}}',
      '',
      '',
    ].join('\n')

    const summary = parseDoubaoStreamBody(body)

    expect(summary.search_results).toHaveLength(1)
    expect(summary.search_results[0]?.url).toBe('https://example.com/report')
    expect(summary.search_results[0]?.title).toBe('思考链路里的真实标题')
    expect(summary.search_results[0]?.site_name).toBe('示例站点')
  })

  it('unwraps Doubao redirect URLs before storing citation sources', () => {
    const item = buildSourceItem({
      url: 'https://www.doubao.com/link?target=https%3A%2F%2Fexample.com%2Fsource%23ref',
      title: 'unknown',
    })

    expect(item).toMatchObject({
      url: 'https://example.com/source',
      normalized_url: 'https://example.com/source',
      host: 'example.com',
      title: null,
    })
  })

  it('parses Doubao answer deltas and source cards from the completion SSE stream', () => {
    const sourceChunkPayload = {
      patch_op: [
        {
          patch_value: {
            content_block: [
              {
                block_type: 10025,
                content: {
                  search_query_result_block: {
                    results: [
                      {
                        text_card: {
                          url: 'https://k.sina.cn/article_3244012052_c15bb21400101k0hg.html',
                          title: '2026年合肥全屋定制品牌综合实力排名出炉',
                          sitename: '新浪',
                          logo_url: 'https://p11-spider-image-sign.byteimg.com/logo.jpeg',
                        },
                      },
                    ],
                  },
                },
              },
            ],
          },
        },
      ],
    }
    const body = [
      'event: SSE_ACK',
      'data: {"ack_client_meta":{"conversation_id":"38427686224603138","section_id":"38427686224603394"}}',
      '',
      'event: FULL_MSG_NOTIFY',
      'data: {"message":{"content":"用户问题 echo，不是答案","conversation_id":"38427686224603138"}}',
      '',
      'event: STREAM_CHUNK',
      `data: ${JSON.stringify(sourceChunkPayload)}`,
      '',
      'event: CHUNK_DELTA',
      'data: {"text":"直接给你"}',
      '',
      'event: CHUNK_DELTA',
      'data: {"text":"一份清单。"}',
      '',
      'event: SSE_REPLY_END',
      'data: {"end_type":2,"answer_finish_attr":{"has_suggest":true}}',
      '',
      '',
    ].join('\n')

    const summary = parseDoubaoStreamBody(body)

    expect(summary.answer).toBe('直接给你一份清单。')
    expect(summary.conversation_id).toBe('38427686224603138')
    expect(summary.full_message_event_count).toBe(1)
    expect(summary.reply_end_event_count).toBe(1)
    expect(summary.answer_finish_event_count).toBe(1)
    expect(summary.search_results).toHaveLength(1)
    expect(summary.search_results[0]).toMatchObject({
      url: 'https://k.sina.cn/article_3244012052_c15bb21400101k0hg.html',
      title: '2026年合肥全屋定制品牌综合实力排名出炉',
      site_name: '新浪',
      host: 'k.sina.cn',
    })
  })

  it('repairs mixed Doubao mojibake fragments before returning the SSE answer', () => {
    const body = [
      'event: CHUNK_DELTA',
      'data: {"text":"需要合肥地区全屋定制推荐，"}',
      '',
      'event: CHUNK_DELTA',
      'data: {"text":"综合考量性价比、口碑服务等因素。2000㎡展厅，核验批号。"}',
      '',
      'event: SSE_REPLY_END',
      'data: {"end_type":2,"answer_finish_attr":{"has_suggest":true}}',
      '',
      '',
    ].join('\n')

    const summary = parseDoubaoStreamBody(body)

    expect(summary.answer).toBe(
      '需要合肥地区全屋定制推荐，综合考量性价比、口碑服务等因素。2000㎡展厅，核验批号。',
    )
    expect(summary.answer).not.toMatch(/[åæèéäãï][\u0080-\u00ff\u02c0-\u02ff\u2000-\u20ff]/)
    expect(resolveDoubaoSubmissionAnswer({ answer: summary.answer })).toEqual({
      answer:
        '需要合肥地区全屋定制推荐，综合考量性价比、口碑服务等因素。2000㎡展厅，核验批号。',
      source: 'sse',
    })
  })

  it('does not treat FULL_MSG_NOTIFY user echo as the Doubao answer', () => {
    const body = [
      'event: FULL_MSG_NOTIFY',
      'data: {"message":{"content":"合肥全屋定制哪家好"}}',
      '',
      'event: SSE_REPLY_END',
      'data: {"end_type":2,"answer_finish_attr":{"has_suggest":true}}',
      '',
      '',
    ].join('\n')

    const summary = parseDoubaoStreamBody(body)

    expect(summary.answer).toBeNull()
    expect(summary.full_message_event_count).toBe(1)
    expect(summary.answer_finish_event_count).toBe(1)
  })

  it('submits only SSE answer text, without reasoning fallback', () => {
    expect(
      resolveDoubaoSubmissionAnswer({
        answer: 'SSE 正文答案',
      }),
    ).toEqual({
      answer: 'SSE 正文答案',
      source: 'sse',
    })
  })

  it('does not submit a success answer when the SSE stream has no answer text', () => {
    expect(
      resolveDoubaoSubmissionAnswer({
        answer: null,
      }),
    ).toEqual({
      answer: null,
      source: null,
    })
  })
})