/**
 * Ozon商品页采集配置
 *
 * 设计原则:
 * 1. 人工控制触发,不做复杂等待
 * 2. 多套选择器并存,应对Ozon的A/B测试
 * 3. 优先采集跟卖必需的字段
 */

import type { SiteProfile } from './types';

export const profileOzon: SiteProfile = {
  id: 'ozon',
  name: 'Ozon',

  // URL匹配
  urlPatterns: [
    /^https:\/\/www\.ozon\.ru\/product\//,
    /^https:\/\/www\.ozon\.ru\/context\/detail\/id\//
  ],

  // 提取商品ID
  extractItemId: (url) => {
    // Ozon URL格式: https://www.ozon.ru/product/name-123456789/
    const match = url.match(/\/product\/[^\/]+-(\d+)/);
    return match?.[1] ?? null;
  },

  // 简单的就绪检测 - 只要关键元素存在即可
  readySelectors: [
    '[data-widget="webProductHeading"]',  // 标题区
    '[data-widget="webGallery"]'          // 图片画廊
  ],
  readyTimeoutMs: 5_000, // 快速失败,不等太久

  // 图片来源属性优先级
  defaultSrcProps: ['data-src', 'currentSrc', 'src'],

  refererOrigin: 'https://www.ozon.ru',

  // ==========================================
  // 文本素材规则
  // ==========================================
  textRules: [
    // 1. 标题 (必需)
    {
      kind: 'title',
      selectors: [
        '[data-widget="webProductHeading"] h1',
        '.tsHeadline500Medium',
        'h1[itemprop="name"]'
      ],
      extract: 'first',
      required: true
    },

    // 2. 价格
    {
      kind: 'price',
      selectors: [
        '[data-widget="webPrice"] span[class*="tsBodyControl500"]',
        '[data-widget="webPrice"] span',
        '.c2h9_27 span', // 可能的备用类名
        'span[itemprop="price"]'
      ],
      extract: 'first'
    },

    // 3. 参数表 (特性)
    {
      kind: 'params',
      selectors: [
        '[data-widget="webCharacteristics"] dl',
        '[data-widget="webDetailedCharacteristics"] dl',
        '.k1p_27 dl'
      ],
      extract: 'table',
      tableKeySelector: 'dt',
      tableValueSelector: 'dd'
    },

    // 4. 简介/卖点
    {
      kind: 'selling_point',
      selectors: [
        '[data-widget="webFeatures"]',
        '[data-widget="webAO"]',
        '.h9o_27' // About this item
      ],
      extract: 'join'
    },

    // 5. 详细描述
    {
      kind: 'desc',
      selectors: [
        '[data-widget="webDescription"]',
        '[data-widget="webRichContent"]',
        '.RA-a1'
      ],
      extract: 'join'
    }
  ],

  // ==========================================
  // 图片素材规则
  // ==========================================
  imageGroups: [
    // 主图画廊
    {
      key: 'main',
      name: '主图',
      type: 'img',
      selectors: [
        '[data-widget="webGallery"] img[class*="Image"]',
        '[data-widget="webGallery"] source', // picture元素
        '[data-widget="webPhotoGallery"] img',
        '.b013-a img' // 旧版选择器
      ],
      minWidth: 200,
      minHeight: 200
    },

    // SKU变体图 (颜色/尺寸)
    {
      key: 'sku',
      name: 'SKU图片',
      type: 'img',
      selectors: [
        '[data-widget="webDetailSKU"] button img',
        '[data-widget="webVariants"] img',
        '[data-widget="webSku"] img',
        '.k3r_27 img' // SKU容器
      ],
      // SKU规格名提取
      nameSelectors: [
        'span[class*="Value"]',
        'span[class*="Text"]',
        '.tsBodyControl400Small'
      ],
      minWidth: 20,
      minHeight: 20
    },

    // 详情图 (描述中的图片)
    {
      key: 'detail',
      name: '详情图',
      type: 'img',
      selectors: [
        '[data-widget="webDescription"] img',
        '[data-widget="webRichContent"] img',
        '[data-widget="webFeatures"] img',
        '.RA-a1 img'
      ],
      minWidth: 300,
      minHeight: 100
    },

    // 视频 (如果有)
    {
      key: 'video',
      name: '视频',
      type: 'video',
      selectors: [
        '[data-widget="webGallery"] video',
        '[data-widget="webVideo"] video',
        'video[class*="Video"]'
      ]
    }
  ],

  // ==========================================
  // 图片URL处理规则
  // ==========================================
  originalUrlRules: [
    {
      // Ozon CDN缩略图处理
      // 例: /wc200/xxx.jpg → /wc1200/xxx.jpg (获取更高分辨率)
      match: /\/wc\d+\//,
      replace: '/wc1200/'
    },
    {
      // 或者移除尺寸参数
      // 例: image.jpg?width=200 → image.jpg
      match: /\?(width|height|size|quality)=[^&]+&?/g,
      replace: ''
    }
  ]
};

// ==========================================
// Ozon特殊处理函数
// ==========================================

/**
 * Ozon页面额外的数据提取
 * (可选) 从页面的JSON-LD结构化数据中提取
 */
export function extractOzonStructuredData(): {
  brand?: string;
  sku?: string;
  availability?: string;
} | null {
  try {
    const scripts = document.querySelectorAll('script[type="application/ld+json"]');
    for (const script of scripts) {
      const data = JSON.parse(script.textContent || '{}');
      if (data['@type'] === 'Product') {
        return {
          brand: data.brand?.name,
          sku: data.sku,
          availability: data.offers?.availability
        };
      }
    }
  } catch (e) {
    console.warn('Failed to extract structured data:', e);
  }
  return null;
}

/**
 * 检测Ozon页面是否已就绪
 * (简化版 - 只检查关键元素存在)
 */
export function isOzonPageReady(): {
  ready: boolean;
  missing: string[];
} {
  const requiredElements = [
    { selector: '[data-widget="webProductHeading"]', name: '标题' },
    { selector: '[data-widget="webGallery"]', name: '图片画廊' }
  ];

  const missing: string[] = [];

  for (const elem of requiredElements) {
    if (!document.querySelector(elem.selector)) {
      missing.push(elem.name);
    }
  }

  return {
    ready: missing.length === 0,
    missing
  };
}

// ==========================================
// 使用示例 (在content script中)
// ==========================================
/*
import { profileOzon, isOzonPageReady } from './profiles/ozon';

// 用户点击"采集"按钮时
async function handleCollect() {
  // 1. 快速检查
  const { ready, missing } = isOzonPageReady();
  if (!ready) {
    alert(`页面未完全加载,缺少: ${missing.join(', ')}\n请稍候再试`);
    return;
  }

  // 2. 执行采集
  const result = await scanCurrentPage(); // 使用通用采集引擎

  // 3. 显示结果
  console.log('采集完成:', result);
}
*/