// src/hooks/useSearchEvents.js
// 全局搜索功能事件追踪 Hook

import { useCallback } from 'react';
import { usePostHogTrack } from './usePostHogRedux';
import { RETENTION_EVENTS } from '../lib/constants';
import { logger } from '../utils/logger';

/**
 * 全局搜索事件追踪 Hook
 * @param {Object} options - 配置选项
 * @param {string} options.context - 搜索上下文 ('global' | 'stock' | 'news' | 'concept' | 'simulation')
 * @returns {Object} 事件追踪处理函数集合
 */
export const useSearchEvents = ({ context = 'global' } = {}) => {
  const { track } = usePostHogTrack();

  /**
   * 追踪搜索开始（聚焦搜索框）
   * @param {string} placeholder - 搜索框提示文本
   */
  const trackSearchInitiated = useCallback((placeholder = '') => {
    track(RETENTION_EVENTS.SEARCH_INITIATED, {
      context,
      placeholder,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '🔍 Search Initiated', {
      context,
      placeholder,
    });
  }, [track, context]);

  /**
   * 追踪搜索查询提交
   * @param {string} query - 搜索查询词
   * @param {number} resultCount - 搜索结果数量
   * @param {Object} filters - 应用的筛选条件
   */
  const trackSearchQuerySubmitted = useCallback((query, resultCount = 0, filters = {}) => {
    if (!query) {
      logger.warn('useSearchEvents', 'trackSearchQuerySubmitted: query is required');
      return;
    }

    track(RETENTION_EVENTS.SEARCH_QUERY_SUBMITTED, {
      query,
      query_length: query.length,
      result_count: resultCount,
      has_results: resultCount > 0,
      context,
      filters: filters,
      filter_count: Object.keys(filters).length,
      timestamp: new Date().toISOString(),
    });

    // 如果没有搜索结果，额外追踪
    if (resultCount === 0) {
      track(RETENTION_EVENTS.SEARCH_NO_RESULTS, {
        query,
        context,
        filters,
        timestamp: new Date().toISOString(),
      });

      logger.debug('useSearchEvents', '❌ Search No Results', {
        query,
        context,
      });
    } else {
      logger.debug('useSearchEvents', '✅ Search Query Submitted', {
        query,
        resultCount,
        context,
      });
    }
  }, [track, context]);

  /**
   * 追踪搜索结果点击
   * @param {Object} result - 被点击的搜索结果
   * @param {string} result.type - 结果类型 ('stock' | 'news' | 'concept' | 'event')
   * @param {string} result.id - 结果ID
   * @param {string} result.title - 结果标题
   * @param {number} position - 在搜索结果中的位置
   * @param {string} query - 搜索查询词
   */
  const trackSearchResultClicked = useCallback((result, position = 0, query = '') => {
    if (!result || !result.type) {
      logger.warn('useSearchEvents', 'trackSearchResultClicked: result object with type is required');
      return;
    }

    track(RETENTION_EVENTS.SEARCH_RESULT_CLICKED, {
      result_type: result.type,
      result_id: result.id || result.code || '',
      result_title: result.title || result.name || '',
      position,
      query,
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '🎯 Search Result Clicked', {
      type: result.type,
      id: result.id || result.code,
      position,
      context,
    });
  }, [track, context]);

  /**
   * 追踪搜索筛选应用
   * @param {Object} filters - 应用的筛选条件
   * @param {string} filterType - 筛选类型 ('sort' | 'category' | 'date_range' | 'price_range')
   * @param {any} filterValue - 筛选值
   */
  const trackSearchFilterApplied = useCallback((filterType, filterValue, filters = {}) => {
    if (!filterType) {
      logger.warn('useSearchEvents', 'trackSearchFilterApplied: filterType is required');
      return;
    }

    track(RETENTION_EVENTS.SEARCH_FILTER_APPLIED, {
      filter_type: filterType,
      filter_value: String(filterValue),
      all_filters: filters,
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '🔍 Search Filter Applied', {
      filterType,
      filterValue,
      context,
    });
  }, [track, context]);

  /**
   * 追踪搜索建议点击（自动完成）
   * @param {string} suggestion - 被点击的搜索建议
   * @param {number} position - 在建议列表中的位置
   * @param {string} source - 建议来源 ('history' | 'popular' | 'related')
   */
  const trackSearchSuggestionClicked = useCallback((suggestion, position = 0, source = 'popular') => {
    if (!suggestion) {
      logger.warn('useSearchEvents', 'trackSearchSuggestionClicked: suggestion is required');
      return;
    }

    track('Search Suggestion Clicked', {
      suggestion,
      position,
      source,
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '💡 Search Suggestion Clicked', {
      suggestion,
      position,
      source,
      context,
    });
  }, [track, context]);

  /**
   * 追踪搜索历史查看
   * @param {number} historyCount - 历史记录数量
   */
  const trackSearchHistoryViewed = useCallback((historyCount = 0) => {
    track('Search History Viewed', {
      history_count: historyCount,
      has_history: historyCount > 0,
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '📜 Search History Viewed', {
      historyCount,
      context,
    });
  }, [track, context]);

  /**
   * 追踪搜索历史清除
   */
  const trackSearchHistoryCleared = useCallback(() => {
    track('Search History Cleared', {
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '🗑️ Search History Cleared', {
      context,
    });
  }, [track, context]);

  /**
   * 追踪热门搜索词点击
   * @param {string} keyword - 被点击的热门关键词
   * @param {number} position - 在列表中的位置
   * @param {number} heatScore - 热度分数
   */
  const trackPopularKeywordClicked = useCallback((keyword, position = 0, heatScore = 0) => {
    if (!keyword) {
      logger.warn('useSearchEvents', 'trackPopularKeywordClicked: keyword is required');
      return;
    }

    track('Popular Keyword Clicked', {
      keyword,
      position,
      heat_score: heatScore,
      context,
      timestamp: new Date().toISOString(),
    });

    logger.debug('useSearchEvents', '🔥 Popular Keyword Clicked', {
      keyword,
      position,
      context,
    });
  }, [track, context]);

  return {
    // 搜索流程事件
    trackSearchInitiated,
    trackSearchQuerySubmitted,
    trackSearchResultClicked,

    // 筛选和建议
    trackSearchFilterApplied,
    trackSearchSuggestionClicked,

    // 历史和热门
    trackSearchHistoryViewed,
    trackSearchHistoryCleared,
    trackPopularKeywordClicked,
  };
};

export default useSearchEvents;