#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Pipeline包装器
封装EnhancedSearchV2，提供只执行阶段3-7的接口
"""

import os
import logging
import tempfile
from typing import Dict, List, Any, Optional

from src.pipeline.feature_search_pipeline import EnhancedSearchV2
from api.config import APIConfig

logger = logging.getLogger(__name__)


class PipelineWrapper:
    """Pipeline包装器，复用阶段3-7"""
    
    def __init__(self):
        """初始化Pipeline包装器"""
        # 创建临时输出目录
        self.temp_output_dir = tempfile.mkdtemp(prefix='api_pipeline_')
        logger.info(f"创建临时输出目录: {self.temp_output_dir}")
        
        # 初始化EnhancedSearchV2实例
        # 注意：how_json_path参数是必需的，但我们不会使用它（因为我们跳过阶段1-2）
        # 创建一个空的临时文件作为占位符
        temp_how_file = os.path.join(self.temp_output_dir, 'temp_how.json')
        with open(temp_how_file, 'w', encoding='utf-8') as f:
            import json
            json.dump({'解构结果': {}}, f)
        
        self.pipeline = EnhancedSearchV2(
            how_json_path=temp_how_file,  # 占位符文件，实际不会使用
            openrouter_api_key=APIConfig.OPENROUTER_API_KEY,
            output_dir=self.temp_output_dir,
            top_n=10,
            max_total_searches=APIConfig.MAX_TOTAL_SEARCHES,
            search_max_workers=APIConfig.SEARCH_MAX_WORKERS,
            max_searches_per_feature=APIConfig.MAX_SEARCHES_PER_FEATURE,
            max_searches_per_base_word=APIConfig.MAX_SEARCHES_PER_BASE_WORD,
            enable_evaluation=True,
            evaluation_max_workers=APIConfig.EVALUATION_MAX_WORKERS,
            evaluation_max_notes_per_query=APIConfig.EVALUATION_MAX_NOTES_PER_QUERY,
            enable_deep_analysis=True,  # 启用深度解构
            deep_analysis_only=False,
            deep_analysis_max_workers=APIConfig.DEEP_ANALYSIS_MAX_WORKERS,
            deep_analysis_max_notes=None,
            deep_analysis_skip_count=0,
            deep_analysis_sort_by='score',
            deep_analysis_api_url=APIConfig.DEEP_ANALYSIS_API_URL,
            deep_analysis_min_score=APIConfig.DEEP_ANALYSIS_MIN_SCORE,
            enable_similarity=True,  # 启用相似度分析
            similarity_weight_embedding=APIConfig.SIMILARITY_WEIGHT_EMBEDDING,
            similarity_weight_semantic=APIConfig.SIMILARITY_WEIGHT_SEMANTIC,
            similarity_max_workers=APIConfig.SIMILARITY_MAX_WORKERS,
            similarity_min_similarity=APIConfig.SIMILARITY_MIN_SIMILARITY
        )
        
        logger.info("Pipeline包装器初始化完成")
    
    def run_stages_3_to_7(
        self,
        features_data: List[Dict[str, Any]]
    ) -> Dict[str, Any]:
        """
        执行阶段3-7的完整流程
        
        Args:
            features_data: 阶段2的输出格式数据（candidate_words.json格式）
        
        Returns:
            包含阶段3-7结果的字典
        
        Raises:
            Exception: 当任何阶段执行失败时
        """
        try:
            logger.info("=" * 60)
            logger.info("开始执行阶段3-7")
            logger.info("=" * 60)
            
            # 验证输入数据
            if not features_data:
                raise ValueError("features_data不能为空")
            
            # 阶段3：多词组合 + LLM评估
            logger.info("阶段3：生成搜索词...")
            try:
                queries = self.pipeline.generate_search_queries(
                    features_data,
                    max_workers=APIConfig.QUERY_GENERATION_MAX_WORKERS,
                    max_candidates=APIConfig.MAX_CANDIDATES,
                    max_combo_length=APIConfig.MAX_COMBO_LENGTH
                )
            except Exception as e:
                logger.error(f"阶段3执行失败: {e}", exc_info=True)
                raise Exception(f"搜索词生成失败: {str(e)}")
            
            # 阶段4：执行搜索
            logger.info("阶段4：执行搜索...")
            try:
                search_results = self.pipeline.execute_search_queries(
                    queries,
                    search_delay=2.0,
                    top_n=self.pipeline.top_n
                )
            except Exception as e:
                logger.error(f"阶段4执行失败: {e}", exc_info=True)
                raise Exception(f"搜索执行失败: {str(e)}")
            
            # 阶段5：LLM评估搜索结果
            logger.info("阶段5：评估搜索结果...")
            try:
                evaluation_results = self.pipeline.evaluate_search_results(search_results)
            except Exception as e:
                logger.error(f"阶段5执行失败: {e}", exc_info=True)
                raise Exception(f"结果评估失败: {str(e)}")
            
            # 阶段6：深度解构分析
            logger.info("阶段6：深度解构分析...")
            try:
                deep_results = self.pipeline.deep_analyzer.run(evaluation_results)
            except Exception as e:
                logger.error(f"阶段6执行失败: {e}", exc_info=True)
                raise Exception(f"深度解构分析失败: {str(e)}")
            
            # 阶段7：相似度分析
            logger.info("阶段7：相似度分析...")
            try:
                similarity_results = self.pipeline.similarity_analyzer.run(
                    deep_results,
                    output_path=os.path.join(self.temp_output_dir, "similarity_analysis_results.json")
                )
            except Exception as e:
                logger.error(f"阶段7执行失败: {e}", exc_info=True)
                raise Exception(f"相似度分析失败: {str(e)}")
            
            # 注意：similarity_analyzer.run会自动更新evaluation_results中的comprehensive_score
            # 所以我们需要重新加载更新后的evaluation_results
            # 但由于similarity_analyzer已经更新了内存中的evaluation_results，这里直接使用即可
            
            logger.info("=" * 60)
            logger.info("阶段3-7执行完成")
            logger.info("=" * 60)
            
            return {
                'evaluation_results': evaluation_results,  # 已包含更新后的comprehensive_score
                'deep_results': deep_results,
                'similarity_results': similarity_results
            }
            
        except Exception as e:
            logger.error(f"执行阶段3-7失败: {e}", exc_info=True)
            raise
    
    def cleanup(self):
        """清理临时文件"""
        try:
            import shutil
            if os.path.exists(self.temp_output_dir):
                shutil.rmtree(self.temp_output_dir)
                logger.info(f"已清理临时目录: {self.temp_output_dir}")
        except Exception as e:
            logger.warning(f"清理临时目录失败: {e}")