TravelContentCreator/api/services/database_service.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
数据库服务层
负责景区、产品、风格、受众等数据的查询和管理
"""

import logging
import time
import traceback
from typing import Dict, Any, Optional, List, Tuple
import mysql.connector
from mysql.connector import pooling

from core.config import ConfigManager

logger = logging.getLogger(__name__)


class DatabaseService:
    """数据库服务类"""
    
    def __init__(self, config_manager: ConfigManager):
        """
        初始化数据库服务
        
        Args:
            config_manager: 配置管理器
        """
        self.config_manager = config_manager
        self.db_pool = self._init_db_pool()
    
    def _init_db_pool(self):
        """初始化数据库连接池"""
        # 获取数据库配置
        raw_db_config = self.config_manager.get_raw_config('database')
        
        # 处理环境变量
        db_config = self._process_env_vars(raw_db_config)
        
        # 连接尝试配置
        connection_attempts = [
            {"desc": "使用配置文件中的设置", "config": db_config},
            {"desc": "使用明确的密码", "config": {**db_config, "password": "password"}},
            {"desc": "使用空密码", "config": {**db_config, "password": ""}},
            {"desc": "使用auth_plugin", "config": {**db_config, "auth_plugin": "mysql_native_password"}}
        ]
        
        # 尝试不同的连接方式
        for attempt in connection_attempts:
            try:
                # 打印连接信息（不包含密码）
                connection_info = {k: v for k, v in attempt["config"].items() if k != 'password'}
                logger.info(f"尝试连接数据库 ({attempt['desc']}): {connection_info}")
                
                # 创建连接池
                pool = pooling.MySQLConnectionPool(
                    pool_name=f"database_service_pool_{int(time.time())}",
                    pool_size=10,
                    **attempt["config"]
                )
                
                # 测试连接
                with pool.get_connection() as conn:
                    cursor = conn.cursor()
                    cursor.execute("SELECT 1")
                    cursor.fetchall()
                
                logger.info(f"数据库连接池初始化成功 ({attempt['desc']})")
                return pool
            except Exception as e:
                error_details = traceback.format_exc()
                logger.error(f"数据库连接尝试 ({attempt['desc']}) 失败: {e}\n{error_details}")
        
        logger.error("所有数据库连接尝试都失败了")
        return None
    
    def _process_env_vars(self, config: Dict[str, Any]) -> Dict[str, Any]:
        """处理环境变量"""
        import os
        
        processed_config = {}
        for key, value in config.items():
            if isinstance(value, str) and value.startswith("${") and value.endswith("}"):
                env_var = value[2:-1]
                processed_config[key] = os.environ.get(env_var, "")
            else:
                processed_config[key] = value
        
        return processed_config
    
    def get_scenic_spot_by_id(self, spot_id: int) -> Optional[Dict[str, Any]]:
        """根据ID获取单个景区信息"""
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM scenicSpot WHERE id = %s AND isDelete = 0",
                        (spot_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到景区信息: ID={spot_id}, 名称={result['name']}")
                        return result
                    else:
                        logger.warning(f"未找到景区信息: ID={spot_id}")
                        return None
        except Exception as e:
            logger.error(f"查询景区信息失败: {e}")
            return None
    
    def get_product_by_id(self, product_id: int) -> Optional[Dict[str, Any]]:
        """根据ID获取单个产品信息"""
        if not self.db_pool:
            return None
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute("SELECT * FROM product WHERE id = %s AND isDelete = 0", (product_id,))
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到产品信息: ID={product_id}, 名称={result['productName']}")
                        return result
                    else:
                        logger.warning(f"未找到产品信息: ID={product_id}")
                        return None
        except Exception as e:
            logger.error(f"查询产品信息失败: {e}")
            return None
    
    def get_style_by_id(self, style_id: int) -> Optional[Dict[str, Any]]:
        """
        根据ID获取风格信息
        
        Args:
            style_id: 风格ID
            
        Returns:
            风格信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                            "SELECT * FROM contentStyle WHERE id = %s AND isDelete = 0",
                    (style_id,)
                )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到风格信息: ID={style_id}, 名称={result['styleName']}")
                        return result
                    else:
                        logger.warning(f"未找到风格信息: ID={style_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询风格信息失败: {e}")
            return None
    
    def get_audience_by_id(self, audience_id: int) -> Optional[Dict[str, Any]]:
        """
        根据ID获取受众信息
        
        Args:
            audience_id: 受众ID
            
        Returns:
            受众信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM targetAudience WHERE id = %s AND isDelete = 0",
                        (audience_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到受众信息: ID={audience_id}, 名称={result['audienceName']}")
                        return result
                    else:
                        logger.warning(f"未找到受众信息: ID={audience_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询受众信息失败: {e}")
            return None
    
    def get_scenic_spots_by_ids(self, spot_ids: List[int]) -> List[Dict[str, Any]]:
        """
        根据ID列表批量获取景区信息
        
        Args:
            spot_ids: 景区ID列表
            
        Returns:
            景区信息列表
        """
        if not self.db_pool or not spot_ids:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建IN查询
                    placeholders = ','.join(['%s'] * len(spot_ids))
                    query = f"SELECT * FROM scenicSpot WHERE id IN ({placeholders}) AND isDelete = 0"
                    cursor.execute(query, spot_ids)
                    results = cursor.fetchall()
                    logger.info(f"批量查询景区信息: 请求{len(spot_ids)}个，找到{len(results)}个")
                    return results
            
        except Exception as e:
            logger.error(f"批量查询景区信息失败: {e}")
            return []
    
    def get_products_by_ids(self, productIds: List[int]) -> List[Dict[str, Any]]:
        """
        根据ID列表批量获取产品信息
        
        Args:
            productIds: 产品ID列表
            
        Returns:
            产品信息列表
        """
        if not self.db_pool or not productIds:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建IN查询
                    placeholders = ','.join(['%s'] * len(productIds))
                    query = f"SELECT * FROM product WHERE id IN ({placeholders}) AND isDelete = 0"
                    cursor.execute(query, productIds)
                    results = cursor.fetchall()
                    logger.info(f"批量查询产品信息: 请求{len(productIds)}个，找到{len(results)}个")
                    return results
            
        except Exception as e:
            logger.error(f"批量查询产品信息失败: {e}")
            return []
    
    def get_styles_by_ids(self, styleIds: List[int]) -> List[Dict[str, Any]]:
        """
        根据ID列表批量获取风格信息
        
        Args:
            styleIds: 风格ID列表
            
        Returns:
            风格信息列表
        """
        if not self.db_pool or not styleIds:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建IN查询
                    placeholders = ','.join(['%s'] * len(styleIds))
                    query = f"SELECT * FROM contentStyle WHERE id IN ({placeholders}) AND isDelete = 0"
                    cursor.execute(query, styleIds)
                    results = cursor.fetchall()
                    logger.info(f"批量查询风格信息: 请求{len(styleIds)}个，找到{len(results)}个")
                    return results
            
        except Exception as e:
            logger.error(f"批量查询风格信息失败: {e}")
            return []
    
    def get_audiences_by_ids(self, audienceIds: List[int]) -> List[Dict[str, Any]]:
        """
        根据ID列表批量获取受众信息
        
        Args:
            audienceIds: 受众ID列表
            
        Returns:
            受众信息列表
        """
        if not self.db_pool or not audienceIds:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建IN查询
                    placeholders = ','.join(['%s'] * len(audienceIds))
                    query = f"SELECT * FROM targetAudience WHERE id IN ({placeholders}) AND isDelete = 0"
                    cursor.execute(query, audienceIds)
                    results = cursor.fetchall()
                    logger.info(f"批量查询受众信息: 请求{len(audienceIds)}个，找到{len(results)}个")
                    return results
            
        except Exception as e:
            logger.error(f"批量查询受众信息失败: {e}")
            return []
    
    def list_all_scenic_spots(self, user_id: Optional[int] = None, is_public: Optional[bool] = None) -> List[Dict[str, Any]]:
        """
        获取所有景区列表
        
        Args:
            user_id: 用户ID，如果提供则只返回该用户的景区
            is_public: 是否公开，如果提供则过滤公开/私有景区
            
        Returns:
            景区列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建查询条件
                    conditions = ["isDelete = 0"]
                    params = []
                    
                    if user_id is not None:
                        conditions.append("userId = %s")
                        params.append(user_id)
                    
                    if is_public is not None:
                        conditions.append("isPublic = %s")
                        params.append(1 if is_public else 0)
                    
                    query = f"""
                        SELECT id, name, address, trafficInfo, description, 
                               advantage, highlight, isPublic, userId 
                        FROM scenicSpot 
                        WHERE {' AND '.join(conditions)} 
                        ORDER BY name
                    """
                    cursor.execute(query, params)
                    results = cursor.fetchall()
                    logger.info(f"获取景区列表: 找到{len(results)}个景区")
                    return results
            
        except Exception as e:
            logger.error(f"获取景区列表失败: {e}")
            return []
    
    def list_all_products(self, user_id: Optional[int] = None, is_public: Optional[bool] = None) -> List[Dict[str, Any]]:
        """
        获取所有产品列表
        
        Args:
            user_id: 用户ID，如果提供则只返回该用户的产品
            is_public: 是否公开，如果提供则过滤公开/私有产品
            
        Returns:
            产品列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建查询条件
                    conditions = ["isDelete = 0"]
                    params = []
                    
                    if user_id is not None:
                        conditions.append("userId = %s")
                        params.append(user_id)
                    
                    if is_public is not None:
                        conditions.append("isPublic = %s")
                        params.append(1 if is_public else 0)
                    
                    query = f"""
                        SELECT id, productName, originPrice, realPrice, packageInfo, 
                               detailedDescription, keyAdvantages, highlights, 
                               usageRules, surcharge, reservation, refund, discounts,
                               isPublic, userId 
                        FROM product 
                        WHERE {' AND '.join(conditions)} 
                        ORDER BY productName
                    """
                    cursor.execute(query, params)
                    results = cursor.fetchall()
                    logger.info(f"获取产品列表: 找到{len(results)}个产品")
                    return results
            
        except Exception as e:
            logger.error(f"获取产品列表失败: {e}")
            return []
    
    def list_all_styles(self) -> List[Dict[str, Any]]:
        """
        获取所有风格列表
        
        Returns:
            风格列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute("SELECT id, styleName, description FROM contentStyle WHERE isDelete = 0 ORDER BY styleName")
                    results = cursor.fetchall()
                    logger.info(f"获取风格列表: 找到{len(results)}个风格")
                    return results
            
        except Exception as e:
            logger.error(f"获取风格列表失败: {e}")
            return []
    
    def list_all_audiences(self) -> List[Dict[str, Any]]:
        """
        获取所有受众列表
        
        Returns:
            受众列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute("SELECT id, audienceName, description FROM targetAudience WHERE isDelete = 0 ORDER BY audienceName")
                    results = cursor.fetchall()
                    logger.info(f"获取受众列表: 找到{len(results)}个受众")
                    return results
            
        except Exception as e:
            logger.error(f"获取受众列表失败: {e}")
            return []
    
    def is_available(self) -> bool:
        """
        检查数据库服务是否可用
        
        Returns:
            数据库是否可用
        """
        return self.db_pool is not None 
    
    # 名称到ID的反向查询方法
    
    def get_style_id_by_name(self, style_name: str) -> Optional[int]:
        """
        根据风格名称获取风格ID
        
        Args:
            style_name: 风格名称
            
        Returns:
            风格ID，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                                "SELECT id FROM contentStyle WHERE styleName = %s AND isDelete = 0",
                        (style_name,)
                    )
                    result = cursor.fetchone()
                    if result:
                        return result['id']
                    else:
                        logger.warning(f"未找到风格: {style_name}")
                        return None
                
        except Exception as e:
            logger.error(f"查询风格ID失败: {e}")
            return None
    
    def get_audience_id_by_name(self, audience_name: str) -> Optional[int]:
        """
        根据受众名称获取受众ID
        
        Args:
            audience_name: 受众名称
            
        Returns:
            受众ID，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT id FROM targetAudience WHERE audienceName = %s AND isDelete = 0",
                        (audience_name,)
                    )
                    result = cursor.fetchone()
                    if result:
                        return result['id']
                    else:
                        logger.warning(f"未找到受众: {audience_name}")
                        return None
                
        except Exception as e:
            logger.error(f"查询受众ID失败: {e}")
            return None
    
    def get_scenic_spot_id_by_name(self, spot_name: str) -> Optional[int]:
        """
        根据景区名称获取景区ID
        
        Args:
            spot_name: 景区名称
            
        Returns:
            景区ID，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT id FROM scenicSpot WHERE name = %s AND isDelete = 0",
                        (spot_name,)
                    )
                    result = cursor.fetchone()
                    if result:
                        return result['id']
                    else:
                        logger.warning(f"未找到景区: {spot_name}")
                        return None
                
        except Exception as e:
            logger.error(f"查询景区ID失败: {e}")
            return None
    
    def get_product_id_by_name(self, product_name: str) -> Optional[int]:
        """
        根据产品名称获取产品ID
        
        Args:
            product_name: 产品名称
            
        Returns:
            产品ID，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT id FROM product WHERE productName = %s AND isDelete = 0",
                        (product_name,)
                    )
                    result = cursor.fetchone()
                    if result:
                        return result['id']
                    else:
                        logger.warning(f"未找到产品: {product_name}")
                        return None
                
        except Exception as e:
            logger.error(f"查询产品ID失败: {e}")
            return None
    

    
    def get_image_by_id(self, image_id: int) -> Optional[Dict[str, Any]]:
        """
        根据ID获取图像信息
        
        Args:
            image_id: 图像ID
            
        Returns:
            图像信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM material WHERE id = %s AND materialType = 'image' AND isDelete = 0",
                        (image_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到图像信息: ID={image_id}, 名称={result['materialName']}")
                        return result
                    else:
                        logger.warning(f"未找到图像信息: ID={image_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询图像信息失败: {e}")
            return None
    
    def get_images_by_ids(self, image_ids: List[int]) -> List[Dict[str, Any]]:
        """
        根据ID列表批量获取图像信息
        
        Args:
            image_ids: 图像ID列表
            
        Returns:
            图像信息列表
        """
        if not self.db_pool or not image_ids:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 构建IN查询
                    placeholders = ','.join(['%s'] * len(image_ids))
                    query = f"SELECT * FROM material WHERE id IN ({placeholders}) AND materialType = 'image' AND isDelete = 0"
                    cursor.execute(query, image_ids)
                    results = cursor.fetchall()
                    logger.info(f"批量查询图像信息: 请求{len(image_ids)}个，找到{len(results)}个")
                    return results
            
        except Exception as e:
            logger.error(f"批量查询图像信息失败: {e}")
            return []
    
    def get_content_by_id(self, content_id: int) -> Optional[Dict[str, Any]]:
        """
        根据ID获取内容信息
        
        Args:
            content_id: 内容ID
            
        Returns:
            内容信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM content WHERE id = %s AND isDelete = 0",
                        (content_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到内容信息: ID={content_id}, 标题={result['title']}")
                        return result
                    else:
                        logger.warning(f"未找到内容信息: ID={content_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询内容信息失败: {e}")
            return None
    
    def get_content_by_topic_index(self, topic_index: str) -> Optional[Dict[str, Any]]:
        """根据主题索引获取内容信息"""
        if not self.db_pool:
            return None
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM content WHERE topicIndex = %s AND isDelete = 0 ORDER BY createTime DESC LIMIT 1",
                        (topic_index,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到内容信息: topicIndex={topic_index}, 标题={result['title']}")
                        return result
                    else:
                        logger.warning(f"未找到内容信息: topicIndex={topic_index}")
                        return None
        except Exception as e:
            logger.error(f"查询内容信息失败: {e}")
            return None
    
    def get_images_by_folder_id(self, folder_id: int) -> List[Dict[str, Any]]:
        """
        根据文件夹ID获取图像列表
        
        Args:
            folder_id: 文件夹ID
            
        Returns:
            图像信息列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM material WHERE folderId = %s AND materialType = 'image' AND isDelete = 0 ORDER BY createTime DESC",
                        (folder_id,)
                    )
                    results = cursor.fetchall()
                    logger.info(f"根据文件夹ID获取图像: folderId={folder_id}, 找到{len(results)}个图像")
                    return results
            
        except Exception as e:
            logger.error(f"根据文件夹ID获取图像失败: {e}")
            return []
    
    def get_folder_by_id(self, folder_id: int) -> Optional[Dict[str, Any]]:
        """
        根据ID获取文件夹信息
        
        Args:
            folder_id: 文件夹ID
            
        Returns:
            文件夹信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM material_folder WHERE id = %s AND isDelete = 0",
                        (folder_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到文件夹信息: ID={folder_id}, 名称={result['folderName']}")
                        return result
                    else:
                        logger.warning(f"未找到文件夹信息: ID={folder_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询文件夹信息失败: {e}")
            return None
    
    def get_related_images_for_content(self, content_id: int, limit: int = 10) -> List[Dict[str, Any]]:
        """
        获取与内容相关的图像列表
        
        Args:
            content_id: 内容ID
            limit: 限制数量
            
        Returns:
            相关图像列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    # 获取内容信息
                    cursor.execute(
                        "SELECT * FROM content WHERE id = %s AND isDelete = 0",
                        (content_id,)
                    )
                    content = cursor.fetchone()
                    
                    if not content:
                        return []
                    
                    # 获取相关的图像（这里可以根据业务逻辑调整查询条件）
                    cursor.execute(
                        "SELECT * FROM material WHERE materialType = 'image' AND isDelete = 0 ORDER BY RAND() LIMIT %s",
                        (limit,)
                    )
                    results = cursor.fetchall()
                    logger.info(f"获取相关内容图像: contentId={content_id}, 找到{len(results)}个图像")
                    return results
            
        except Exception as e:
            logger.error(f"获取相关内容图像失败: {e}")
            return []
    
    # 模板相关查询方法
    
    def get_all_poster_templates(self) -> List[Dict[str, Any]]:
        """
        获取所有海报模板
        
        Returns:
            模板列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM poster_templates ORDER BY created_at"
                    )
                    results = cursor.fetchall()
                    logger.info(f"获取海报模板列表: 找到{len(results)}个模板")
                    return results
            
        except Exception as e:
            logger.error(f"获取海报模板列表失败: {e}")
            return []
    
    def get_poster_template_by_id(self, template_id: str) -> Optional[Dict[str, Any]]:
        """
        根据ID获取海报模板信息
        
        Args:
            template_id: 模板ID
            
        Returns:
            模板信息字典，如果未找到则返回None
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM poster_templates WHERE id = %s",
                        (template_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到模板信息: ID={template_id}, 名称={result['name']}")
                        return result
                    else:
                        logger.warning(f"未找到模板信息: ID={template_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询模板信息失败: {e}")
            return None
    
    def get_active_poster_templates(self) -> List[Dict[str, Any]]:
        """
        获取所有激活的海报模板
        
        Returns:
            激活的模板列表
        """
        if not self.db_pool:
            return []
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM poster_templates WHERE is_active = 1 ORDER BY created_at"
                    )
                    results = cursor.fetchall()
                    logger.info(f"获取激活模板列表: 找到{len(results)}个模板")
                    return results
            
        except Exception as e:
            logger.error(f"获取激活模板列表失败: {e}")
            return []
    
    def update_template_usage_stats(self, template_id: str, success: bool = True, processing_time: float = 0.0):
        """
        更新模板使用统计
        
        Args:
            template_id: 模板ID
            success: 是否成功
            processing_time: 处理时间（秒）
        """
        if not self.db_pool:
            logger.error("数据库连接池未初始化")
            return
        
        try:
            conn = self.db_pool.get_connection()
            cursor = conn.cursor()
            
            # 更新或插入统计记录
            cursor.execute("""
                INSERT INTO templateUsageStats (templateId, usageCount, successCount, errorCount, avgProcessingTime, lastUsedAt)
                VALUES (%s, 1, %s, %s, %s, NOW())
                ON DUPLICATE KEY UPDATE
                    usageCount = usageCount + 1,
                    successCount = successCount + %s,
                    errorCount = errorCount + %s,
                    avgProcessingTime = (avgProcessingTime * (usageCount - 1) + %s) / usageCount,
                    lastUsedAt = NOW(),
                    updatedAt = NOW()
            """, (
                template_id,
                1 if success else 0,
                0 if success else 1,
                processing_time,
                1 if success else 0,
                0 if success else 1,
                processing_time
            ))
            
            conn.commit()
            cursor.close()
            conn.close()
            
            logger.info(f"更新模板使用统计: template_id={template_id}, success={success}, time={processing_time:.3f}s")
            
        except Exception as e:
            logger.error(f"更新模板使用统计失败: {e}")
    
    def get_template_usage_stats(self, template_id: str) -> Optional[Dict[str, Any]]:
        """
        获取模板使用统计
        
        Args:
            template_id: 模板ID
            
        Returns:
            使用统计信息
        """
        if not self.db_pool:
            return None
        
        try:
            with self.db_pool.get_connection() as conn:
                with conn.cursor(dictionary=True) as cursor:
                    cursor.execute(
                        "SELECT * FROM templateUsageStats WHERE templateId = %s",
                        (template_id,)
                    )
                    result = cursor.fetchone()
                    if result:
                        logger.info(f"找到模板使用统计: template_id={template_id}")
                        return result
                    else:
                        logger.warning(f"未找到模板使用统计: template_id={template_id}")
                        return None
                
        except Exception as e:
            logger.error(f"查询模板使用统计失败: {e}")
            return None