""" Community Service - 指标社区服务 处理指标市场、购买、评论等功能。 """ import time from decimal import Decimal from typing import Dict, Any, List, Optional, Tuple from app.utils.db import get_db_connection from app.utils.logger import get_logger from app.services.billing_service import get_billing_service logger = get_logger(__name__) class CommunityService: """指标社区服务类""" def __init__(self): self.billing = get_billing_service() # ========================================== # 指标市场 # ========================================== def get_market_indicators( self, page: int = 1, page_size: int = 12, keyword: str = None, pricing_type: str = None, # 'free' / 'paid' / None(all) sort_by: str = 'newest', # 'newest' / 'hot' / 'price_asc' / 'price_desc' / 'rating' user_id: int = None # 当前用户ID，用于判断是否已购买 ) -> Dict[str, Any]: """获取市场上已发布的指标列表""" offset = (page - 1) * page_size try: with get_db_connection() as db: cur = db.cursor() # 构建查询条件 - 只显示已发布且审核通过的指标 where_clauses = ["i.publish_to_community = 1", "(i.review_status = 'approved' OR i.review_status IS NULL)"] params = [] if keyword and keyword.strip(): where_clauses.append("(i.name ILIKE ? OR i.description ILIKE ?)") search_term = f"%{keyword.strip()}%" params.extend([search_term, search_term]) if pricing_type == 'free': where_clauses.append("(i.pricing_type = 'free' OR i.price <= 0)") elif pricing_type == 'paid': where_clauses.append("(i.pricing_type != 'free' AND i.price > 0)") where_sql = " AND ".join(where_clauses) # 排序 order_map = { 'newest': 'i.created_at DESC', 'hot': 'i.purchase_count DESC, i.view_count DESC', 'price_asc': 'i.price ASC, i.created_at DESC', 'price_desc': 'i.price DESC, i.created_at DESC', 'rating': 'i.avg_rating DESC, i.rating_count DESC' } order_sql = order_map.get(sort_by, 'i.created_at DESC') # 获取总数 count_sql = f""" SELECT COUNT(*) as count FROM qd_indicator_codes i WHERE {where_sql} """ cur.execute(count_sql, tuple(params)) total = cur.fetchone()['count'] # 获取列表（联表查询作者信息） query_sql = f""" SELECT i.id, i.name, i.description, i.pricing_type, i.price, i.preview_image, i.purchase_count, i.avg_rating, i.rating_count, i.view_count, i.created_at, i.updated_at, u.id as author_id, u.username as author_username, u.nickname as author_nickname, u.avatar as author_avatar FROM qd_indicator_codes i LEFT JOIN qd_users u ON i.user_id = u.id WHERE {where_sql} ORDER BY {order_sql} LIMIT ? OFFSET ? """ cur.execute(query_sql, tuple(params + [page_size, offset])) rows = cur.fetchall() or [] # 如果有当前用户，查询已购买的指标 purchased_ids = set() if user_id: indicator_ids = [r['id'] for r in rows] if indicator_ids: placeholders = ','.join(['?'] * len(indicator_ids)) cur.execute( f"SELECT indicator_id FROM qd_indicator_purchases WHERE buyer_id = ? AND indicator_id IN ({placeholders})", tuple([user_id] + indicator_ids) ) purchased_ids = {r['indicator_id'] for r in (cur.fetchall() or [])} cur.close() # 格式化返回数据 items = [] for row in rows: items.append({ 'id': row['id'], 'name': row['name'], 'description': row['description'][:200] if row['description'] else '', 'pricing_type': row['pricing_type'] or 'free', 'price': float(row['price'] or 0), 'preview_image': row['preview_image'] or '', 'purchase_count': row['purchase_count'] or 0, 'avg_rating': float(row['avg_rating'] or 0), 'rating_count': row['rating_count'] or 0, 'view_count': row['view_count'] or 0, 'created_at': row['created_at'].isoformat() if row['created_at'] else None, 'author': { 'id': row['author_id'], 'username': row['author_username'], 'nickname': row['author_nickname'] or row['author_username'], 'avatar': row['author_avatar'] or '/avatar2.jpg' }, 'is_purchased': row['id'] in purchased_ids, 'is_own': row['author_id'] == user_id }) return { 'items': items, 'total': total, 'page': page, 'page_size': page_size, 'total_pages': (total + page_size - 1) // page_size if total > 0 else 0 } except Exception as e: logger.error(f"get_market_indicators failed: {e}") return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0} def get_indicator_detail(self, indicator_id: int, user_id: int = None) -> Optional[Dict[str, Any]]: """获取指标详情""" try: with get_db_connection() as db: cur = db.cursor() # 获取指标信息 cur.execute(""" SELECT i.id, i.name, i.description, i.pricing_type, i.price, i.preview_image, i.purchase_count, i.avg_rating, i.rating_count, i.view_count, i.publish_to_community, i.created_at, i.updated_at, i.user_id, u.id as author_id, u.username as author_username, u.nickname as author_nickname, u.avatar as author_avatar FROM qd_indicator_codes i LEFT JOIN qd_users u ON i.user_id = u.id WHERE i.id = ? """, (indicator_id,)) row = cur.fetchone() if not row: cur.close() return None # 检查是否已发布到社区（或者是自己的指标） if not row['publish_to_community'] and row['user_id'] != user_id: cur.close() return None # 检查是否已购买 is_purchased = False if user_id: cur.execute( "SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?", (indicator_id, user_id) ) is_purchased = cur.fetchone() is not None # 增加浏览次数 cur.execute( "UPDATE qd_indicator_codes SET view_count = COALESCE(view_count, 0) + 1 WHERE id = ?", (indicator_id,) ) db.commit() cur.close() return { 'id': row['id'], 'name': row['name'], 'description': row['description'] or '', 'pricing_type': row['pricing_type'] or 'free', 'price': float(row['price'] or 0), 'preview_image': row['preview_image'] or '', 'purchase_count': row['purchase_count'] or 0, 'avg_rating': float(row['avg_rating'] or 0), 'rating_count': row['rating_count'] or 0, 'view_count': (row['view_count'] or 0) + 1, 'created_at': row['created_at'].isoformat() if row['created_at'] else None, 'updated_at': row['updated_at'].isoformat() if row['updated_at'] else None, 'author': { 'id': row['author_id'], 'username': row['author_username'], 'nickname': row['author_nickname'] or row['author_username'], 'avatar': row['author_avatar'] or '/avatar2.jpg' }, 'is_purchased': is_purchased, 'is_own': row['user_id'] == user_id } except Exception as e: logger.error(f"get_indicator_detail failed: {e}") return None # ========================================== # 购买功能 # ========================================== def purchase_indicator(self, buyer_id: int, indicator_id: int) -> Tuple[bool, str, Dict[str, Any]]: """ 购买指标 Returns: (success, message, data) """ try: with get_db_connection() as db: cur = db.cursor() # 1. 获取指标信息 cur.execute(""" SELECT id, user_id, name, code, description, pricing_type, price, preview_image, is_encrypted FROM qd_indicator_codes WHERE id = ? AND publish_to_community = 1 """, (indicator_id,)) indicator = cur.fetchone() if not indicator: cur.close() return False, 'indicator_not_found', {} seller_id = indicator['user_id'] price = float(indicator['price'] or 0) pricing_type = indicator['pricing_type'] or 'free' # 2. 检查是否购买自己的指标 if seller_id == buyer_id: cur.close() return False, 'cannot_buy_own', {} # 3. 检查是否已购买 cur.execute( "SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?", (indicator_id, buyer_id) ) if cur.fetchone(): cur.close() return False, 'already_purchased', {} # 4. 如果是付费指标，检查并扣除积分 if pricing_type != 'free' and price > 0: buyer_credits = self.billing.get_user_credits(buyer_id) if buyer_credits < price: cur.close() return False, 'insufficient_credits', { 'required': price, 'current': float(buyer_credits) } # 扣除买家积分 new_buyer_balance = buyer_credits - Decimal(str(price)) cur.execute( "UPDATE qd_users SET credits = ?, updated_at = NOW() WHERE id = ?", (float(new_buyer_balance), buyer_id) ) # 记录买家积分日志 cur.execute(""" INSERT INTO qd_credits_log (user_id, action, amount, balance_after, feature, reference_id, remark, created_at) VALUES (?, 'indicator_purchase', ?, ?, 'indicator_purchase', ?, ?, NOW()) """, (buyer_id, -price, float(new_buyer_balance), str(indicator_id), f"购买指标: {indicator['name']}")) # 给卖家增加积分（可配置抽成比例，这里先100%给卖家） seller_credits = self.billing.get_user_credits(seller_id) new_seller_balance = seller_credits + Decimal(str(price)) cur.execute( "UPDATE qd_users SET credits = ?, updated_at = NOW() WHERE id = ?", (float(new_seller_balance), seller_id) ) # 记录卖家积分日志 cur.execute(""" INSERT INTO qd_credits_log (user_id, action, amount, balance_after, feature, reference_id, remark, created_at) VALUES (?, 'indicator_sale', ?, ?, 'indicator_sale', ?, ?, NOW()) """, (seller_id, price, float(new_seller_balance), str(indicator_id), f"出售指标: {indicator['name']}")) # 5. 创建购买记录 cur.execute(""" INSERT INTO qd_indicator_purchases (indicator_id, buyer_id, seller_id, price, created_at) VALUES (?, ?, ?, ?, NOW()) """, (indicator_id, buyer_id, seller_id, price)) # 6. 复制指标到买家账户 now_ts = int(time.time()) cur.execute(""" INSERT INTO qd_indicator_codes (user_id, is_buy, end_time, name, code, description, publish_to_community, pricing_type, price, is_encrypted, preview_image, createtime, updatetime, created_at, updated_at) VALUES (?, 1, 0, ?, ?, ?, 0, 'free', 0, ?, ?, ?, ?, NOW(), NOW()) """, ( buyer_id, indicator['name'], indicator['code'], indicator['description'], indicator['is_encrypted'] or 0, indicator['preview_image'], now_ts, now_ts )) # 7. 更新指标购买次数 cur.execute(""" UPDATE qd_indicator_codes SET purchase_count = COALESCE(purchase_count, 0) + 1 WHERE id = ? """, (indicator_id,)) db.commit() cur.close() logger.info(f"User {buyer_id} purchased indicator {indicator_id} for {price} credits") return True, 'success', {'indicator_name': indicator['name'], 'price': price} except Exception as e: logger.error(f"purchase_indicator failed: {e}") return False, f'error: {str(e)}', {} def get_my_purchases(self, user_id: int, page: int = 1, page_size: int = 20) -> Dict[str, Any]: """获取用户购买的指标列表""" offset = (page - 1) * page_size try: with get_db_connection() as db: cur = db.cursor() # 获取总数 cur.execute( "SELECT COUNT(*) as count FROM qd_indicator_purchases WHERE buyer_id = ?", (user_id,) ) total = cur.fetchone()['count'] # 获取列表 cur.execute(""" SELECT p.id as purchase_id, p.price as purchase_price, p.created_at as purchase_time, i.id, i.name, i.description, i.preview_image, i.avg_rating, u.nickname as seller_nickname, u.avatar as seller_avatar FROM qd_indicator_purchases p LEFT JOIN qd_indicator_codes i ON p.indicator_id = i.id LEFT JOIN qd_users u ON p.seller_id = u.id WHERE p.buyer_id = ? ORDER BY p.created_at DESC LIMIT ? OFFSET ? """, (user_id, page_size, offset)) rows = cur.fetchall() or [] cur.close() items = [] for row in rows: items.append({ 'purchase_id': row['purchase_id'], 'purchase_price': float(row['purchase_price'] or 0), 'purchase_time': row['purchase_time'].isoformat() if row['purchase_time'] else None, 'indicator': { 'id': row['id'], 'name': row['name'], 'description': row['description'][:100] if row['description'] else '', 'preview_image': row['preview_image'] or '', 'avg_rating': float(row['avg_rating'] or 0) }, 'seller': { 'nickname': row['seller_nickname'], 'avatar': row['seller_avatar'] or '/avatar2.jpg' } }) return { 'items': items, 'total': total, 'page': page, 'page_size': page_size, 'total_pages': (total + page_size - 1) // page_size if total > 0 else 0 } except Exception as e: logger.error(f"get_my_purchases failed: {e}") return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0} # ========================================== # 评论功能 # ========================================== def get_comments(self, indicator_id: int, page: int = 1, page_size: int = 20) -> Dict[str, Any]: """获取指标评论列表""" offset = (page - 1) * page_size try: with get_db_connection() as db: cur = db.cursor() # 获取总数（只统计一级评论） cur.execute(""" SELECT COUNT(*) as count FROM qd_indicator_comments WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0 """, (indicator_id,)) total = cur.fetchone()['count'] # 获取评论列表 cur.execute(""" SELECT c.id, c.rating, c.content, c.created_at, u.id as user_id, u.nickname, u.avatar FROM qd_indicator_comments c LEFT JOIN qd_users u ON c.user_id = u.id WHERE c.indicator_id = ? AND c.parent_id IS NULL AND c.is_deleted = 0 ORDER BY c.created_at DESC LIMIT ? OFFSET ? """, (indicator_id, page_size, offset)) rows = cur.fetchall() or [] cur.close() items = [] for row in rows: items.append({ 'id': row['id'], 'rating': row['rating'], 'content': row['content'], 'created_at': row['created_at'].isoformat() if row['created_at'] else None, 'user': { 'id': row['user_id'], 'nickname': row['nickname'], 'avatar': row['avatar'] or '/avatar2.jpg' } }) return { 'items': items, 'total': total, 'page': page, 'page_size': page_size, 'total_pages': (total + page_size - 1) // page_size if total > 0 else 0 } except Exception as e: logger.error(f"get_comments failed: {e}") return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0} def add_comment( self, user_id: int, indicator_id: int, rating: int, content: str ) -> Tuple[bool, str, Dict[str, Any]]: """ 添加评论（只有购买过的用户可以评论，且只能评论一次） """ try: # 验证评分范围 rating = max(1, min(5, int(rating))) content = (content or '').strip()[:500] # 限制500字 with get_db_connection() as db: cur = db.cursor() # 检查指标是否存在 cur.execute( "SELECT id, user_id FROM qd_indicator_codes WHERE id = ? AND publish_to_community = 1", (indicator_id,) ) indicator = cur.fetchone() if not indicator: cur.close() return False, 'indicator_not_found', {} # 不能评论自己的指标 if indicator['user_id'] == user_id: cur.close() return False, 'cannot_comment_own', {} # 检查是否已购买（免费指标也需要"获取"才能评论） cur.execute( "SELECT id FROM qd_indicator_purchases WHERE indicator_id = ? AND buyer_id = ?", (indicator_id, user_id) ) if not cur.fetchone(): cur.close() return False, 'not_purchased', {} # 检查是否已评论 cur.execute( "SELECT id FROM qd_indicator_comments WHERE indicator_id = ? AND user_id = ? AND parent_id IS NULL", (indicator_id, user_id) ) if cur.fetchone(): cur.close() return False, 'already_commented', {} # 添加评论 cur.execute(""" INSERT INTO qd_indicator_comments (indicator_id, user_id, rating, content, created_at, updated_at) VALUES (?, ?, ?, ?, NOW(), NOW()) """, (indicator_id, user_id, rating, content)) comment_id = cur.lastrowid # 更新指标的评分统计 cur.execute(""" UPDATE qd_indicator_codes SET rating_count = COALESCE(rating_count, 0) + 1, avg_rating = ( SELECT AVG(rating) FROM qd_indicator_comments WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0 ) WHERE id = ? """, (indicator_id, indicator_id)) db.commit() cur.close() logger.info(f"User {user_id} commented on indicator {indicator_id} with rating {rating}") return True, 'success', {'comment_id': comment_id} except Exception as e: logger.error(f"add_comment failed: {e}") return False, f'error: {str(e)}', {} def update_comment( self, user_id: int, comment_id: int, indicator_id: int, rating: int, content: str ) -> Tuple[bool, str, Dict[str, Any]]: """ 更新评论（只能修改自己的评论） """ try: rating = max(1, min(5, int(rating))) content = (content or '').strip()[:500] with get_db_connection() as db: cur = db.cursor() # 检查评论是否存在且属于当前用户 cur.execute(""" SELECT id, rating as old_rating FROM qd_indicator_comments WHERE id = ? AND user_id = ? AND indicator_id = ? AND is_deleted = 0 """, (comment_id, user_id, indicator_id)) comment = cur.fetchone() if not comment: cur.close() return False, 'comment_not_found', {} old_rating = comment['old_rating'] # 更新评论 cur.execute(""" UPDATE qd_indicator_comments SET rating = ?, content = ?, updated_at = NOW() WHERE id = ? """, (rating, content, comment_id)) # 如果评分变了，更新指标的平均评分 if old_rating != rating: cur.execute(""" UPDATE qd_indicator_codes SET avg_rating = ( SELECT AVG(rating) FROM qd_indicator_comments WHERE indicator_id = ? AND parent_id IS NULL AND is_deleted = 0 ) WHERE id = ? """, (indicator_id, indicator_id)) db.commit() cur.close() logger.info(f"User {user_id} updated comment {comment_id}") return True, 'success', {'comment_id': comment_id} except Exception as e: logger.error(f"update_comment failed: {e}") return False, f'error: {str(e)}', {} def get_user_comment(self, user_id: int, indicator_id: int) -> Optional[Dict[str, Any]]: """获取用户对某个指标的评论""" try: with get_db_connection() as db: cur = db.cursor() cur.execute(""" SELECT id, rating, content, created_at, updated_at FROM qd_indicator_comments WHERE user_id = ? AND indicator_id = ? AND parent_id IS NULL AND is_deleted = 0 """, (user_id, indicator_id)) row = cur.fetchone() cur.close() if not row: return None return { 'id': row['id'], 'rating': row['rating'], 'content': row['content'], 'created_at': row['created_at'].isoformat() if row['created_at'] else None, 'updated_at': row['updated_at'].isoformat() if row['updated_at'] else None } except Exception as e: logger.error(f"get_user_comment failed: {e}") return None # ========================================== # 管理员审核功能 # ========================================== def get_pending_indicators( self, page: int = 1, page_size: int = 20, review_status: str = 'pending' # 'pending' / 'approved' / 'rejected' / 'all' ) -> Dict[str, Any]: """获取待审核的指标列表（管理员用）""" offset = (page - 1) * page_size try: with get_db_connection() as db: cur = db.cursor() # 构建查询条件 where_clauses = ["i.publish_to_community = 1"] params = [] if review_status and review_status != 'all': where_clauses.append("i.review_status = ?") params.append(review_status) where_sql = " AND ".join(where_clauses) # 获取总数 count_sql = f""" SELECT COUNT(*) as count FROM qd_indicator_codes i WHERE {where_sql} """ cur.execute(count_sql, tuple(params)) total = cur.fetchone()['count'] # 获取列表 query_sql = f""" SELECT i.id, i.name, i.description, i.pricing_type, i.price, i.preview_image, i.code, i.review_status, i.review_note, i.reviewed_at, i.reviewed_by, i.created_at, u.id as author_id, u.username as author_username, u.nickname as author_nickname, u.avatar as author_avatar, r.username as reviewer_username FROM qd_indicator_codes i LEFT JOIN qd_users u ON i.user_id = u.id LEFT JOIN qd_users r ON i.reviewed_by = r.id WHERE {where_sql} ORDER BY i.created_at DESC LIMIT ? OFFSET ? """ cur.execute(query_sql, tuple(params + [page_size, offset])) rows = cur.fetchall() or [] cur.close() items = [] for row in rows: items.append({ 'id': row['id'], 'name': row['name'], 'description': row['description'][:300] if row['description'] else '', 'pricing_type': row['pricing_type'] or 'free', 'price': float(row['price'] or 0), 'preview_image': row['preview_image'] or '', 'code': row['code'] or '', # 管理员可以看代码 'review_status': row['review_status'] or 'pending', 'review_note': row['review_note'] or '', 'reviewed_at': row['reviewed_at'].isoformat() if row['reviewed_at'] else None, 'reviewer_username': row['reviewer_username'], 'created_at': row['created_at'].isoformat() if row['created_at'] else None, 'author': { 'id': row['author_id'], 'username': row['author_username'], 'nickname': row['author_nickname'] or row['author_username'], 'avatar': row['author_avatar'] or '/avatar2.jpg' } }) return { 'items': items, 'total': total, 'page': page, 'page_size': page_size, 'total_pages': (total + page_size - 1) // page_size if total > 0 else 0 } except Exception as e: logger.error(f"get_pending_indicators failed: {e}") return {'items': [], 'total': 0, 'page': 1, 'page_size': page_size, 'total_pages': 0} def review_indicator( self, admin_id: int, indicator_id: int, action: str, # 'approve' / 'reject' note: str = '' ) -> Tuple[bool, str]: """审核指标""" try: new_status = 'approved' if action == 'approve' else 'rejected' note = (note or '').strip()[:500] with get_db_connection() as db: cur = db.cursor() # 检查指标是否存在且已发布到社区 cur.execute(""" SELECT id, name, user_id FROM qd_indicator_codes WHERE id = ? AND publish_to_community = 1 """, (indicator_id,)) indicator = cur.fetchone() if not indicator: cur.close() return False, 'indicator_not_found' # 更新审核状态 cur.execute(""" UPDATE qd_indicator_codes SET review_status = ?, review_note = ?, reviewed_at = NOW(), reviewed_by = ? WHERE id = ? """, (new_status, note, admin_id, indicator_id)) db.commit() cur.close() logger.info(f"Admin {admin_id} {action}d indicator {indicator_id}") return True, 'success' except Exception as e: logger.error(f"review_indicator failed: {e}") return False, f'error: {str(e)}' def unpublish_indicator(self, admin_id: int, indicator_id: int, note: str = '') -> Tuple[bool, str]: """下架指标（取消发布）""" try: note = (note or '').strip()[:500] with get_db_connection() as db: cur = db.cursor() # 检查指标是否存在 cur.execute(""" SELECT id, name FROM qd_indicator_codes WHERE id = ? """, (indicator_id,)) indicator = cur.fetchone() if not indicator: cur.close() return False, 'indicator_not_found' # 下架（取消发布） cur.execute(""" UPDATE qd_indicator_codes SET publish_to_community = 0, review_status = 'rejected', review_note = ?, reviewed_at = NOW(), reviewed_by = ? WHERE id = ? """, (f"下架: {note}" if note else "管理员下架", admin_id, indicator_id)) db.commit() cur.close() logger.info(f"Admin {admin_id} unpublished indicator {indicator_id}") return True, 'success' except Exception as e: logger.error(f"unpublish_indicator failed: {e}") return False, f'error: {str(e)}' def admin_delete_indicator(self, admin_id: int, indicator_id: int) -> Tuple[bool, str]: """管理员删除指标""" try: with get_db_connection() as db: cur = db.cursor() # 检查指标是否存在 cur.execute("SELECT id, name FROM qd_indicator_codes WHERE id = ?", (indicator_id,)) indicator = cur.fetchone() if not indicator: cur.close() return False, 'indicator_not_found' # 删除关联的评论 cur.execute("DELETE FROM qd_indicator_comments WHERE indicator_id = ?", (indicator_id,)) # 删除关联的购买记录 cur.execute("DELETE FROM qd_indicator_purchases WHERE indicator_id = ?", (indicator_id,)) # 删除指标 cur.execute("DELETE FROM qd_indicator_codes WHERE id = ?", (indicator_id,)) db.commit() cur.close() logger.info(f"Admin {admin_id} deleted indicator {indicator_id}") return True, 'success' except Exception as e: logger.error(f"admin_delete_indicator failed: {e}") return False, f'error: {str(e)}' def get_review_stats(self) -> Dict[str, int]: """获取审核统计""" try: with get_db_connection() as db: cur = db.cursor() cur.execute(""" SELECT COUNT(*) FILTER (WHERE review_status = 'pending' OR review_status IS NULL) as pending_count, COUNT(*) FILTER (WHERE review_status = 'approved') as approved_count, COUNT(*) FILTER (WHERE review_status = 'rejected') as rejected_count FROM qd_indicator_codes WHERE publish_to_community = 1 """) row = cur.fetchone() cur.close() return { 'pending': row['pending_count'] or 0, 'approved': row['approved_count'] or 0, 'rejected': row['rejected_count'] or 0 } except Exception as e: logger.error(f"get_review_stats failed: {e}") return {'pending': 0, 'approved': 0, 'rejected': 0} # ========================================== # 实盘表现（聚合回测数据） # ========================================== def get_indicator_performance(self, indicator_id: int) -> Dict[str, Any]: """ 获取指标的实盘表现统计 目前基于回测数据统计，未来可扩展为实盘交易数据 """ default_result = { 'strategy_count': 0, 'trade_count': 0, 'win_rate': 0, 'total_profit': 0, 'avg_return': 0, 'max_drawdown': 0 } try: with get_db_connection() as db: cur = db.cursor() # 首先检查回测记录表是否存在 cur.execute(""" SELECT COUNT(*) as cnt FROM information_schema.tables WHERE table_name = 'qd_backtest_runs' """) table_exists = cur.fetchone() if not table_exists or table_exists['cnt'] == 0: cur.close() return default_result # 从回测记录中统计该指标的表现 # 使用 indicator_id 字段匹配 cur.execute(""" SELECT COUNT(*) as run_count, AVG(CASE WHEN total_return IS NOT NULL THEN total_return ELSE 0 END) as avg_return, AVG(CASE WHEN win_rate IS NOT NULL THEN win_rate ELSE 0 END) as avg_win_rate, AVG(CASE WHEN max_drawdown IS NOT NULL THEN max_drawdown ELSE 0 END) as avg_drawdown, SUM(CASE WHEN trade_count IS NOT NULL THEN trade_count ELSE 0 END) as total_trades FROM qd_backtest_runs WHERE indicator_id = ? """, (indicator_id,)) row = cur.fetchone() cur.close() if not row or row['run_count'] == 0: return default_result return { 'strategy_count': row['run_count'] or 0, 'trade_count': row['total_trades'] or 0, 'win_rate': round(float(row['avg_win_rate'] or 0), 2), 'total_profit': round(float(row['avg_return'] or 0), 2), 'avg_return': round(float(row['avg_return'] or 0), 2), 'max_drawdown': round(float(row['avg_drawdown'] or 0), 2) } except Exception as e: logger.error(f"get_indicator_performance failed: {e}") return default_result # 全局单例 _community_service = None def get_community_service() -> CommunityService: """获取社区服务单例""" global _community_service if _community_service is None: _community_service = CommunityService() return _community_service