547 lines
20 KiB
Python
547 lines
20 KiB
Python
"""
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游戏服务
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"""
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from typing import List
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from sqlalchemy.orm import Session
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from sqlalchemy import and_, update
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from ..models.user import User
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from ..models.game import Chest, Bet, ChestStatus
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from ..schemas.game import ChestCreate, BetCreate
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from ..utils.redis import acquire_lock, release_lock, update_pool_cache, get_pool_cache
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from datetime import datetime
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class GameService:
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"""游戏服务"""
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@staticmethod
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def create_chest(db: Session, streamer: User, chest_data: ChestCreate) -> Chest:
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"""
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创建宝箱
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"""
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# 检查主播同时进行的宝箱数量（最多3个）
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active_chests = db.query(Chest).filter(
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and_(
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Chest.streamer_id == streamer.id,
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Chest.status.in_([ChestStatus.BETTING, ChestStatus.LOCKED, ChestStatus.SETTLING])
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)
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).count()
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if active_chests >= 3:
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raise ValueError("同时进行的宝箱数量已达上限（3个）")
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# 创建宝箱
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db_chest = Chest(
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streamer_id=streamer.id,
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title=chest_data.title,
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option_a=chest_data.option_a,
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option_b=chest_data.option_b,
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countdown_seconds=chest_data.countdown_seconds
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)
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db.add(db_chest)
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db.commit()
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db.refresh(db_chest)
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# 初始化缓存
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update_pool_cache(db_chest.id, 0, 0)
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return db_chest
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@staticmethod
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def get_active_chests(db: Session, streamer_id: int = None) -> List[Chest]:
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"""
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获取活跃宝箱
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"""
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query = db.query(Chest).filter(Chest.status == ChestStatus.BETTING)
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if streamer_id:
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query = query.filter(Chest.streamer_id == streamer_id)
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return query.order_by(Chest.created_at.desc()).all()
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@staticmethod
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def get_chests_by_streamer(db: Session, streamer_id: int) -> List[Chest]:
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"""
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获取指定主播的所有宝箱（包括历史宝箱）
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"""
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return db.query(Chest).filter(Chest.streamer_id == streamer_id).order_by(Chest.created_at.desc()).all()
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@staticmethod
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def get_chest_by_id(db: Session, chest_id: int) -> Chest:
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"""
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根据ID获取宝箱
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"""
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return db.query(Chest).filter(Chest.id == chest_id).first()
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@staticmethod
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def place_bet(db: Session, user: User, bet_data: BetCreate) -> Bet:
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"""
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下注
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"""
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lock_key = f"lock:user:{user.id}:bet"
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lock_value = f"{user.id}:{int(datetime.now().timestamp())}"
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# 获取分布式锁
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if not acquire_lock(lock_key, lock_value, expire_seconds=10):
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raise ValueError("操作过于频繁，请稍后重试")
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try:
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# 验证宝箱状态
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chest = GameService.get_chest_by_id(db, bet_data.chest_id)
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if not chest or chest.status != ChestStatus.BETTING:
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raise ValueError("宝箱不可下注")
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# 检查余额
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if user.balance < bet_data.amount:
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raise ValueError("余额不足")
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# 检查用户是否已在该宝箱下注同一选项
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existing_bet = db.query(Bet).filter(
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and_(
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Bet.user_id == user.id,
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Bet.chest_id == bet_data.chest_id,
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Bet.option == bet_data.option,
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Bet.status == "PENDING"
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)
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).first()
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# 如果用户已经对该选项下注，则累加金额而不是拒绝下注
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if existing_bet:
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# 更新现有下注金额
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existing_bet.amount += bet_data.amount
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db.commit()
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# 更新奖池
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if bet_data.option == "A":
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chest.pool_a += bet_data.amount
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else:
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chest.pool_b += bet_data.amount
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chest.total_bets += 1
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db.commit()
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# 更新缓存
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update_pool_cache(chest.id, chest.pool_a, chest.pool_b)
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# 扣款
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result = db.execute(
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update(User).where(
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and_(
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User.id == user.id,
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User.balance >= bet_data.amount,
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User.version == user.version
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)
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).values(
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balance=User.balance - bet_data.amount,
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version=User.version + 1
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)
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)
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if result.rowcount == 0:
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# 回滚之前的更改
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existing_bet.amount -= bet_data.amount
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db.commit()
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raise ValueError("余额不足或并发冲突，请重试")
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# 刷新用户信息
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db.refresh(user)
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# 通知用户余额更新
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import asyncio
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try:
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# 尝试获取当前事件循环
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loop = asyncio.get_running_loop()
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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loop.create_task(notify_user_balance_update(user.id, user.balance))
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except RuntimeError:
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# 如果没有运行中的事件循环，则在新线程中处理
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import threading
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def run_async():
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async def _run():
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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await notify_user_balance_update(user.id, user.balance)
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asyncio.run(_run())
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thread = threading.Thread(target=run_async, daemon=True)
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thread.start()
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# 记录交易
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from ..services.user_service import UserService
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UserService.create_transaction(
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db=db,
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user_id=user.id,
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transaction_type="下注",
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amount=-bet_data.amount,
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balance_after=user.balance,
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related_id=chest.id,
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description=f"追加下注{chest.title}({bet_data.option}边)"
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)
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return existing_bet
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# 使用乐观锁扣款
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result = db.execute(
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update(User).where(
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and_(
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User.id == user.id,
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User.balance >= bet_data.amount,
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User.version == user.version
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)
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).values(
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balance=User.balance - bet_data.amount,
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version=User.version + 1
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)
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)
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if result.rowcount == 0:
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raise ValueError("余额不足或并发冲突，请重试")
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# 刷新用户信息
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db.refresh(user)
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# 通知用户余额更新
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import asyncio
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try:
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# 尝试获取当前事件循环
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loop = asyncio.get_running_loop()
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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loop.create_task(notify_user_balance_update(user.id, user.balance))
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except RuntimeError:
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# 如果没有运行中的事件循环，则在新线程中处理
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import threading
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def run_async():
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async def _run():
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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await notify_user_balance_update(user.id, user.balance)
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asyncio.run(_run())
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thread = threading.Thread(target=run_async, daemon=True)
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thread.start()
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# 更新奖池
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if bet_data.option == "A":
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chest.pool_a += bet_data.amount
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else:
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chest.pool_b += bet_data.amount
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chest.total_bets += 1
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db.commit()
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# 更新缓存
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update_pool_cache(chest.id, chest.pool_a, chest.pool_b)
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# 创建下注记录
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db_bet = Bet(
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user_id=user.id,
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chest_id=chest.id,
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option=bet_data.option,
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amount=bet_data.amount,
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status="PENDING"
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)
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db.add(db_bet)
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db.commit()
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db.refresh(db_bet)
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# 记录交易
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from ..services.user_service import UserService
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UserService.create_transaction(
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db=db,
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user_id=user.id,
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transaction_type="下注",
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amount=-bet_data.amount,
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balance_after=user.balance,
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related_id=chest.id,
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description=f"下注{chest.title}({bet_data.option}边)"
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)
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return db_bet
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finally:
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# 释放锁
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release_lock(lock_key, lock_value)
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@staticmethod
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def lock_chest(db: Session, chest: Chest, streamer: User) -> bool:
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"""
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封盘
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"""
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if chest.streamer_id != streamer.id and streamer.role != "admin":
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raise ValueError("无权操作此宝箱")
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if chest.status != ChestStatus.BETTING:
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raise ValueError("宝箱状态不正确")
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chest.status = ChestStatus.LOCKED
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chest.locked_at = datetime.now()
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db.commit()
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return True
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@staticmethod
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def lock_expired_chest(db: Session, chest_id: int) -> Chest:
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"""
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自动锁定过期的宝箱
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"""
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chest = db.query(Chest).filter(Chest.id == chest_id).first()
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if not chest:
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return None
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if chest.status != ChestStatus.BETTING:
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return chest
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# 检查是否真的过期（增加一个小的容差值以确保准确性）
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# 使用本地时间进行计算（与数据库func.now()保持一致）
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from datetime import datetime
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elapsed = (datetime.now() - chest.created_at).total_seconds()
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if elapsed >= chest.countdown_seconds - 0.1: # 0.1秒的容差
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chest.status = ChestStatus.LOCKED
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chest.locked_at = datetime.now()
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db.commit()
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db.refresh(chest)
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return chest
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return chest
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@staticmethod
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def settle_chest(db: Session, chest: Chest, result: str, streamer: User) -> bool:
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"""
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结算宝箱
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"""
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if chest.streamer_id != streamer.id and streamer.role != "admin":
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raise ValueError("无权操作此宝箱")
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if chest.status not in [ChestStatus.LOCKED, ChestStatus.SETTLING]:
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raise ValueError("宝箱状态不正确")
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# 锁定状态防止重复执行
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chest.status = ChestStatus.SETTLING
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db.commit()
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try:
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if result == "REFUND":
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# 流局退款
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GameService._refund_chest(db, chest)
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else:
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# 正常结算
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GameService._settle_winner(db, chest, result)
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chest.status = ChestStatus.FINISHED
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chest.result = result
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chest.settled_at = datetime.now()
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db.commit()
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return True
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except Exception as e:
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db.rollback()
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raise e
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@staticmethod
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def _settle_winner(db: Session, chest: Chest, winner: str) -> None:
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"""
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结算获胜方
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"""
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# 获取所有下注
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bets = db.query(Bet).filter(
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Bet.chest_id == chest.id,
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Bet.status == "PENDING"
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).all()
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if not bets:
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return
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# 计算总奖池和抽水
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total_pool = chest.pool_a + chest.pool_b
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# 从数据库动态读取抽水比例
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from ..services.system_service import ConfigManager
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streamer_share = ConfigManager.get_streamer_share(db)
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platform_share = ConfigManager.get_platform_share(db)
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streamer_income = int(total_pool * streamer_share)
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platform_income = int(total_pool * platform_share)
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distributable = total_pool - streamer_income - platform_income
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# 主播分润
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streamer = db.query(User).filter(User.id == chest.streamer_id).first()
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if streamer:
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streamer.balance += streamer_income
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db.commit()
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from ..services.user_service import UserService
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UserService.create_transaction(
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db=db,
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user_id=streamer.id,
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transaction_type="抽水分润",
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amount=streamer_income,
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balance_after=streamer.balance,
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related_id=chest.id,
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description=f"宝箱《{chest.title}》抽水分润"
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)
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# 平台抽水 - 直接到管理员账户
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try:
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admin_user = UserService.get_admin_user(db)
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if admin_user and platform_income > 0:
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# 记录转账前的余额
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old_balance = admin_user.balance
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admin_user.balance += platform_income
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db.commit()
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try:
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UserService.create_transaction(
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db=db,
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user_id=admin_user.id,
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transaction_type="平台抽水",
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amount=platform_income,
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balance_after=admin_user.balance,
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related_id=chest.id,
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description=f"宝箱《{chest.title}》平台抽水收益"
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)
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except Exception as e:
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print(f"创建平台抽水交易记录失败: {str(e)}")
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# 即使交易记录创建失败，也不应回滚余额变更
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# 可以在这里添加告警通知或其他补偿措施
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# 通知管理员余额更新
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import asyncio
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try:
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# 尝试获取当前事件循环
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loop = asyncio.get_running_loop()
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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loop.create_task(notify_user_balance_update(admin_user.id, admin_user.balance))
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except RuntimeError:
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# 如果没有运行中的事件循环，则在新线程中处理
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import threading
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def run_async():
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async def _run():
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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await notify_user_balance_update(admin_user.id, admin_user.balance)
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asyncio.run(_run())
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thread = threading.Thread(target=run_async, daemon=True)
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thread.start()
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print(f"平台抽水转账成功: {platform_income} 分至管理员账户 {admin_user.id}")
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except Exception as e:
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# 如果转账失败，记录错误并回滚
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db.rollback()
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print(f"平台抽水转账失败: {str(e)}")
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# 可以在这里添加更详细的错误处理逻辑，比如发送告警通知
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# 计算赔率 - 修改为只对获胜方抽水
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winner_pool = chest.pool_a if winner == "A" else chest.pool_b
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loser_pool = chest.pool_b if winner == "A" else chest.pool_a
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if winner_pool > 0:
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# 赔率计算改为：(获胜方奖池 + 失败方奖池 * 0.9) / 获胜方奖池
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odds = (winner_pool + loser_pool * 0.9) / winner_pool
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# 结算给获胜方
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for bet in bets:
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if bet.option == winner:
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payout = int(bet.amount * odds)
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bet.payout = payout
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bet.status = "WON"
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# 给用户加钱
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user = db.query(User).filter(User.id == bet.user_id).first()
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if user:
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user.balance += payout
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db.commit()
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# 通知用户余额更新
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import asyncio
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try:
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# 尝试获取当前事件循环
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loop = asyncio.get_running_loop()
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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loop.create_task(notify_user_balance_update(user.id, user.balance))
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except RuntimeError:
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# 如果没有运行中的事件循环，则在新线程中处理
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import threading
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def run_async():
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async def _run():
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# 局部导入避免循环导入
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from ..routers.websocket import notify_user_balance_update
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await notify_user_balance_update(user.id, user.balance)
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asyncio.run(_run())
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thread = threading.Thread(target=run_async, daemon=True)
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thread.start()
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# 记录交易
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UserService.create_transaction(
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db=db,
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user_id=user.id,
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transaction_type="获胜",
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amount=payout,
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balance_after=user.balance,
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related_id=chest.id,
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description=f"宝箱《{chest.title}》获胜奖金"
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)
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else:
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bet.status = "LOST"
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db.commit()
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@staticmethod
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def _refund_chest(db: Session, chest: Chest) -> None:
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"""
|
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流局退款
|
||
"""
|
||
bets = db.query(Bet).filter(
|
||
Bet.chest_id == chest.id,
|
||
Bet.status == "PENDING"
|
||
).all()
|
||
|
||
for bet in bets:
|
||
# 退款给用户
|
||
user = db.query(User).filter(User.id == bet.user_id).first()
|
||
if user:
|
||
user.balance += bet.amount
|
||
db.commit()
|
||
|
||
# 通知用户余额更新
|
||
import asyncio
|
||
try:
|
||
# 尝试获取当前事件循环
|
||
loop = asyncio.get_running_loop()
|
||
# 局部导入避免循环导入
|
||
from ..routers.websocket import notify_user_balance_update
|
||
loop.create_task(notify_user_balance_update(user.id, user.balance))
|
||
except RuntimeError:
|
||
# 如果没有运行中的事件循环，则在新线程中处理
|
||
import threading
|
||
def run_async():
|
||
async def _run():
|
||
# 局部导入避免循环导入
|
||
from ..routers.websocket import notify_user_balance_update
|
||
await notify_user_balance_update(user.id, user.balance)
|
||
asyncio.run(_run())
|
||
thread = threading.Thread(target=run_async, daemon=True)
|
||
thread.start()
|
||
|
||
# 记录交易
|
||
from ..services.user_service import UserService
|
||
UserService.create_transaction(
|
||
db=db,
|
||
user_id=user.id,
|
||
transaction_type="退款",
|
||
amount=bet.amount,
|
||
balance_after=user.balance,
|
||
related_id=chest.id,
|
||
description=f"宝箱《{chest.title}》流局退款"
|
||
)
|
||
|
||
bet.status = "REFUNDED"
|
||
|
||
# 重置奖池
|
||
chest.pool_a = 0
|
||
chest.pool_b = 0
|
||
db.commit()
|
||
|
||
# 更新缓存
|
||
update_pool_cache(chest.id, 0, 0)
|
||
|
||
@staticmethod
|
||
def get_chest_bets(db: Session, chest_id: int) -> List[Bet]:
|
||
"""
|
||
获取宝箱下注记录
|
||
"""
|
||
return db.query(Bet).filter(Bet.chest_id == chest_id).all() |