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

import { __testing } from '@/app/reader/components/ReviewModeController';
import type { BookDoc } from '@/libs/document';

describe('ReviewModeController marks', () => {
  test('marks bilingual source and target paragraphs by file and index', () => {
    const doc = document.implementation.createHTMLDocument('chapter');
    doc.body.innerHTML = [
      '<p class="sourceText">原文一</p>',
      '<p>译文一</p>',
      '<p class="sourceText">原文二</p>',
      '<p>译文二</p>',
    ].join('');

    __testing.applyReviewMarks(
      doc,
      'OEBPS/Text/chapter.xhtml',
      [
        {
          id: 'R00002',
          file: 'Text/chapter.xhtml',
          ja_p_index: 2,
          cn_p_index: 3,
          jp_html: '原文二',
          jp_text: '原文二',
          cn_html: '译文二',
          current_html: '<span>新译文二</span><script>alert(1)</script>',
        },
      ],
      'R00002',
    );

    const paragraphs = Array.from(doc.querySelectorAll('p'));
    expect(paragraphs[2]?.getAttribute('data-readest-review-row-id')).toBe('R00002');
    expect(paragraphs[2]?.classList.contains('readest-review-source')).toBe(true);
    expect(paragraphs[3]?.getAttribute('data-readest-review-row-id')).toBe('R00002');
    expect(paragraphs[3]?.classList.contains('readest-review-target')).toBe(true);
    expect(paragraphs[3]?.innerHTML).toBe('<span>新译文二</span>');
  });

  test('uses section id when foliate sections do not expose href', () => {
    const bookDoc = {
      sections: [{ id: 'OEBPS/Text/chapter.xhtml' }],
    } as unknown as BookDoc;

    expect(__testing.sectionHrefAt(bookDoc, 0)).toBe('OEBPS/Text/chapter.xhtml');
  });

  test('clearReviewMarks restores original target HTML', () => {
    const doc = document.implementation.createHTMLDocument('chapter');
    doc.body.innerHTML = '<p class="sourceText">原文</p><p><ruby>旧<rt>old</rt></ruby>译文</p>';

    __testing.applyReviewMarks(
      doc,
      'chapter.xhtml',
      [
        {
          id: 'R00001',
          file: 'chapter.xhtml',
          ja_p_index: 0,
          cn_p_index: 1,
          jp_html: '原文',
          jp_text: '原文',
          cn_html: '<ruby>旧<rt>old</rt></ruby>译文',
          current_html: '<span>新译文</span>',
        },
      ],
      '',
    );

    __testing.clearReviewMarks(doc);

    const target = doc.querySelectorAll('p')[1];
    expect(target?.innerHTML).toBe('<ruby>旧<rt>old</rt></ruby>译文');
    expect(target?.hasAttribute('data-readest-review-row-id')).toBe(false);
  });

  test('strips event handlers and dangerous links from target HTML', () => {
    const doc = document.implementation.createHTMLDocument('chapter');
    doc.body.innerHTML = '<p>原文</p><p>译文</p>';

    __testing.applyReviewMarks(
      doc,
      'chapter.xhtml',
      [
        {
          id: 'R00001',
          file: 'chapter.xhtml',
          ja_p_index: 0,
          cn_p_index: 1,
          jp_html: '原文',
          jp_text: '原文',
          cn_html: '译文',
          current_html: '<span onclick="alert(1)"><a href="javascript:alert(1)">新译文</a></span>',
        },
      ],
      'R00001',
    );

    const target = doc.querySelectorAll('p')[1];
    expect(target?.innerHTML).toBe('<span>新译文</span>');
  });

  test('updates active classes without rewriting translated paragraph HTML', () => {
    const doc = document.implementation.createHTMLDocument('chapter');
    doc.body.innerHTML = '<p>原文一</p><p>译文一</p><p>原文二</p><p>译文二</p>';

    __testing.applyReviewMarks(
      doc,
      'chapter.xhtml',
      [
        {
          id: 'R00001',
          file: 'chapter.xhtml',
          ja_p_index: 0,
          cn_p_index: 1,
          jp_html: '原文一',
          jp_text: '原文一',
          cn_html: '译文一',
          current_html: '<span>新译文一</span>',
        },
        {
          id: 'R00002',
          file: 'chapter.xhtml',
          ja_p_index: 2,
          cn_p_index: 3,
          jp_html: '原文二',
          jp_text: '原文二',
          cn_html: '译文二',
          current_html: '<span>新译文二</span>',
        },
      ],
      'R00001',
    );

    const target = doc.querySelectorAll('p')[1]!;
    target.dataset['localState'] = 'kept';

    __testing.applyActiveReviewMark(doc, 'R00002');

    expect(target.innerHTML).toBe('<span>新译文一</span>');
    expect(target.dataset['localState']).toBe('kept');
    expect(target.classList.contains('readest-review-active')).toBe(false);
    expect(doc.querySelectorAll('p')[3]?.classList.contains('readest-review-active')).toBe(true);
  });
});