'use strict';

/**
 * 「评论设置」后台设置页契约（对齐参考主题 1:1）：
 * 1) PHP schema（SchemaPostList.php comment section）字段键、顺序、默认值与
 *    JS schema（assets/admin/src/schema/sections/post-list/comment.js）一致；
 * 2) 参考主题字段全集存在：close_comments / comment_box_hide /
 *    comment_paginate_type / comment_paging_ajax_ias_s /
 *    comment_paging_ajax_ias_max / comment_code / comment_img /
 *    comment_upload_img / comment_link / comment_author_tag /
 *    user_edit_comment / comment_like_s / comment_user_url_s /
 *    comment_corderby / comment_title / comment_submit_text / comment_text；
 * 3) 插入表情（comment_smilie）、评论地理位置（comment_city_s/comment_city_type，
 *    由扩展&增强/IP归属地实现）不在本页；
 * 4) 快捷回复按评论区硬切换契约保持移除（comment_quick_* 不存在）；
 * 5) 旧 AKSRT 私有字段（comment_order / comment_per_page / comment_pagination_type /
 *    comment_nested_depth / comment_avatar_size / comment_close_comments /
 *    comment_edit_window / comment_hot_threshold / comment_empty_text /
 *    post_close_comments）已彻底移除，无双路兼容；
 * 6) 运行时（PostDisplay::get_comment_display_settings）只读取新键。
 */

const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');
const test = require('node:test');

const root = path.resolve(__dirname, '..', '..');
const php = fs.readFileSync(path.join(root, 'src/Admin/Schema/SchemaPostList.php'), 'utf8');
const js = fs.readFileSync(path.join(root, 'assets/admin/src/schema/sections/post-list/comment.js'), 'utf8');
const runtime = fs.readFileSync(path.join(root, 'src/Settings/PostDisplay.php'), 'utf8');
const commentsHelper = fs.readFileSync(path.join(root, 'inc/helpers/aksrt-comments.php'), 'utf8');
const geoHelper = fs.readFileSync(path.join(root, 'inc/helpers/comments/geo.php'), 'utf8');
const actionsHelper = fs.readFileSync(path.join(root, 'inc/helpers/comments/actions.php'), 'utf8');

const REFERENCE_KEYS = [
  'close_comments',
  'comment_box_hide',
  'comment_paginate_type',
  'comment_paging_ajax_ias_s',
  'comment_paging_ajax_ias_max',
  'comment_code',
  'comment_img',
  'comment_upload_img',
  'comment_link',
  'comment_author_tag',
  'user_edit_comment',
  'comment_like_s',
  'comment_user_url_s',
  'comment_corderby',
  'comment_title',
  'comment_submit_text',
  'comment_text',
];

// 参考主题明确不做 / 本项目不做 / 其他地方实现的字段。
const EXCLUDED_KEYS = [
  'comment_smilie',
  'comment_city_s',
  'comment_city_type',
  'comment_quick_s',
  'comment_quick_often',
];

// 旧 AKSRT 私有字段（含已并入 WP 讨论设置与死字段 post_close_comments）。
const LEGACY_KEYS = [
  'comment_order',
  'comment_per_page',
  'comment_pagination_type',
  'comment_nested_depth',
  'comment_avatar_size',
  'comment_close_comments',
  'comment_edit_window',
  'comment_hot_threshold',
  'comment_empty_text',
  'post_close_comments',
];

/** Extract the PHP 'comment' => [ ... ] section body (balanced brackets). */
function phpCommentSection(src) {
  const start = src.indexOf("'comment' => [");
  assert.notEqual(start, -1, 'PHP schema has a comment section');
  const open = src.indexOf('[', start);
  let depth = 0;
  for (let i = open; i < src.length; i++) {
    const ch = src[i];
    if (ch === "'" || ch === '"') {
      const quote = ch;
      i++;
      while (i < src.length) {
        if (src[i] === '\\') { i += 2; continue; }
        if (src[i] === quote) break;
        i++;
      }
      continue;
    }
    if (ch === '[') depth++;
    else if (ch === ']') {
      depth--;
      if (depth === 0) return src.slice(open, i + 1);
    }
  }
  throw new Error('unbalanced comment section');
}

const commentPhp = phpCommentSection(php);

test('PHP comment section 字段键与参考主题一致且顺序相同', () => {
  // 字段定义均为 ['key' => '...', 'label' => ...] 开头；dependsOn 内的
  // ['key' => '...', 'value' => ...] 不是字段定义，须排除。
  const found = [];
  const re = /'key'\s*=>\s*'([a-z0-9_]+)',\s*'label'/g;
  let m;
  while ((m = re.exec(commentPhp)) !== null) found.push(m[1]);
  assert.deepEqual(found, REFERENCE_KEYS);
});

test('PHP comment section 不含表情/地理位置/快捷回复字段', () => {
  for (const key of EXCLUDED_KEYS) {
    assert.doesNotMatch(commentPhp, new RegExp(`'${key}'`), `comment section 不应包含 ${key}`);
  }
});

test('PHP comment section 默认值对齐参考主题', () => {
  assert.match(commentPhp, /'close_comments',\s*'label'\s*=>\s*'关闭文章评论功能',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*false/);
  assert.match(commentPhp, /'comment_box_hide',\s*'label'\s*=>\s*'隐藏评论模块',\s*'type'\s*=>\s*'radio',\s*'default'\s*=>\s*''/);
  assert.match(commentPhp, /'comment_paginate_type',\s*'label'\s*=>\s*'评论列表翻页模式',\s*'type'\s*=>\s*'radio',\s*'default'\s*=>\s*'default'/);
  assert.match(commentPhp, /'comment_paging_ajax_ias_s',\s*'label'\s*=>\s*'AJAX翻页自动加载',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_paging_ajax_ias_max',\s*'label'\s*=>\s*'自动加载页数',\s*'type'\s*=>\s*'number',\s*'default'\s*=>\s*3/);
  assert.match(commentPhp, /'comment_code',\s*'label'\s*=>\s*'允许插入代码',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_img',\s*'label'\s*=>\s*'允许插入图片',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_upload_img',\s*'label'\s*=>\s*'允许上传图片',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*false/);
  assert.match(commentPhp, /'comment_link',\s*'label'\s*=>\s*'允许插入链接',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*false/);
  assert.match(commentPhp, /'comment_author_tag',\s*'label'\s*=>\s*'显示“作者”标签',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'user_edit_comment',\s*'label'\s*=>\s*'允许用户编辑评论',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_like_s',\s*'label'\s*=>\s*'评论点赞功能',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_user_url_s',\s*'label'\s*=>\s*'匿名评论允许输入链接',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*false/);
  assert.match(commentPhp, /'comment_corderby',\s*'label'\s*=>\s*'评论排序功能',\s*'type'\s*=>\s*'switcher',\s*'default'\s*=>\s*true/);
  assert.match(commentPhp, /'comment_title',\s*'label'\s*=>\s*'自定义评论标题',\s*'type'\s*=>\s*'textarea',\s*'default'\s*=>\s*'评论'/);
  assert.match(commentPhp, /'comment_submit_text',\s*'label'\s*=>\s*'自定义评论提交按钮文案',\s*'type'\s*=>\s*'textarea',\s*'default'\s*=>\s*'提交评论'/);
  assert.match(commentPhp, /'comment_text',\s*'label'\s*=>\s*'自定义评论框占位符文案',\s*'type'\s*=>\s*'input',\s*'default'\s*=>\s*'欢迎您留下宝贵的见解！'/);
});

test('PHP comment section 选项与依赖对齐参考主题', () => {
  // 隐藏评论模块选项。
  for (const option of ['不隐藏', '登录后显示', '所有会员显示', '二级会员显示', '认证用户显示']) {
    assert.ok(commentPhp.includes(`'${option}'`), `comment_box_hide 缺少选项 ${option}`);
  }
  // 翻页模式选项。
  for (const option of ['AJAX追加列表翻页', '数字翻页按钮']) {
    assert.ok(commentPhp.includes(`'${option}'`), `comment_paginate_type 缺少选项 ${option}`);
  }
  assert.match(commentPhp, /'comment_box_hide'[\s\S]*?'dependsOn'\s*=>\s*\['key'\s*=>\s*'close_comments',\s*'value'\s*=>\s*false\]/);
  assert.match(commentPhp, /'comment_paginate_type'[\s\S]*?'dependsOn'\s*=>\s*\['key'\s*=>\s*'close_comments',\s*'value'\s*=>\s*false\]/);
  assert.match(commentPhp, /'comment_paging_ajax_ias_s'[\s\S]*?'dependsOn'\s*=>\s*\['key'\s*=>\s*'comment_paginate_type',\s*'value'\s*=>\s*'ajax_lists'\]/);
  assert.match(commentPhp, /'comment_paging_ajax_ias_max'[\s\S]*?'dependsOn'\s*=>\s*\['all'/);
  assert.match(commentPhp, /'comment_upload_img'[\s\S]*?'dependsOn'\s*=>\s*\['all'/);
  assert.match(commentPhp, /'comment_corderby'[\s\S]*?'dependsOn'\s*=>\s*\['all'/);
  // 允许插入链接在参考主题中没有依赖（其后紧跟 comment_author_tag）。
  const linkIdx = commentPhp.indexOf("'comment_link'");
  const authorTagIdx = commentPhp.indexOf("'comment_author_tag'");
  assert.ok(linkIdx !== -1 && authorTagIdx > linkIdx, 'comment_link / comment_author_tag 顺序应符合参考主题');
  const linkSlice = commentPhp.slice(linkIdx, authorTagIdx);
  assert.ok(!linkSlice.includes('dependsOn'), 'comment_link 不应有 dependsOn');
});

test('JS schema 与 PHP 字段键一致（ui_only 提示行除外）', () => {
  // 字段定义为 { key: '...', label: ... }；dependsOn 内的 { key, value } 须排除。
  const keys = [];
  const re = /key:\s*'([a-z0-9_]+)',\s*label:/g;
  let m;
  while ((m = re.exec(js)) !== null) keys.push(m[1]);
  const persisted = keys.filter((k) => REFERENCE_KEYS.includes(k));
  assert.deepEqual(persisted, REFERENCE_KEYS);
  for (const legacy of LEGACY_KEYS) {
    assert.ok(!keys.includes(legacy), `JS schema 残留旧字段: ${legacy}`);
  }
  for (const excluded of EXCLUDED_KEYS) {
    assert.ok(!keys.includes(excluded), `JS schema 不应包含 ${excluded}`);
  }
  // WP 讨论设置指引行承载参考主题 submessage 与【去设置】链接。
  assert.match(js, /ui_only:\s*true/);
  assert.match(js, /options-discussion\.php/);
  assert.match(js, /分页显示评论/);
});

test('JS schema 默认值与选项对齐参考主题', () => {
  assert.match(js, /close_comments:\s*false/);
  assert.match(js, /comment_box_hide:\s*''/);
  assert.match(js, /comment_paginate_type:\s*'default'/);
  assert.match(js, /comment_paging_ajax_ias_s:\s*true/);
  assert.match(js, /comment_paging_ajax_ias_max:\s*3/);
  assert.match(js, /user_edit_comment:\s*true/);
  assert.match(js, /comment_text:\s*'欢迎您留下宝贵的见解！'/);
  for (const option of ['AJAX追加列表翻页', '数字翻页按钮', '登录后显示', '所有会员显示', '二级会员显示', '认证用户显示']) {
    assert.ok(js.includes(option), `JS schema 缺少选项 ${option}`);
  }
  assert.match(js, /dependsOn:\s*\{\s*key:\s*'close_comments',\s*value:\s*false\s*\}/);
  assert.match(js, /dependsOn:\s*\{\s*key:\s*'comment_paginate_type',\s*value:\s*'ajax_lists'\s*\}/);
});

test('旧字段在 schema 与运行时中均已移除（无双路）', () => {
  for (const legacy of LEGACY_KEYS) {
    assert.ok(!php.includes(legacy), `PHP schema 残留旧字段: ${legacy}`);
    // 运行时按主题设置读取的形态 $settings['<legacy>'] 必须消失
    // （comment_order 允许以 WP 讨论选项 get_option('comment_order') 形态存在）。
    for (const source of [['PostDisplay', runtime], ['aksrt-comments.php', commentsHelper], ['comments/geo.php', geoHelper], ['comments/actions.php', actionsHelper]]) {
      assert.ok(!source[1].includes(`$settings['${legacy}']`), `${source[0]} 残留旧字段读取: ${legacy}`);
    }
  }
  // 运行时只读取新键。
  assert.match(runtime, /\$settings\['close_comments'\]/);
  assert.match(runtime, /\$settings\['user_edit_comment'\]/);
  assert.match(runtime, /\$settings\['comment_box_hide'\]/);
  assert.match(runtime, /Settings::get_value\('comment_paginate_type'/);
  assert.match(runtime, /return \$mode === 'ajax_lists' \? 'ajax_lists' : 'numbered';/);
  // 排序回退到 WP 讨论设置（参考主题行为）。
  assert.match(runtime, /get_option\('comment_order', 'desc'\)/);
  // 评论区位置显示交由扩展 IP 归属地控制。
  assert.match(geoHelper, /aksrt_ip_geo_display_enabled\('comment'\)/);
  assert.match(geoHelper, /aksrt_ip_geo_format_key/);
  // 编辑权限使用 user_edit 总开关。
  assert.match(actionsHelper, /\$display\['user_edit'\]/);
});