319 lines
11 KiB
Python
319 lines
11 KiB
Python
from __future__ import annotations
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import asyncio
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from concurrent.futures import ThreadPoolExecutor
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from datetime import datetime
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import json
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from app.dependencies.database import get_redis, get_redis_message
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from app.log import logger
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from .router import router
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from pydantic import BaseModel
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# Redis key constants
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REDIS_ONLINE_USERS_KEY = "server:online_users"
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REDIS_PLAYING_USERS_KEY = "server:playing_users"
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REDIS_REGISTERED_USERS_KEY = "server:registered_users"
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REDIS_ONLINE_HISTORY_KEY = "server:online_history"
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# 线程池用于同步Redis操作
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_executor = ThreadPoolExecutor(max_workers=2)
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async def _redis_exec(func, *args, **kwargs):
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"""在线程池中执行同步Redis操作"""
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loop = asyncio.get_event_loop()
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return await loop.run_in_executor(_executor, func, *args, **kwargs)
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class ServerStats(BaseModel):
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"""服务器统计信息响应模型"""
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registered_users: int
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online_users: int
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playing_users: int
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timestamp: datetime
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class OnlineHistoryPoint(BaseModel):
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"""在线历史数据点"""
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timestamp: datetime
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online_count: int
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playing_count: int
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peak_online: int | None = None # 峰值在线数（增强数据）
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peak_playing: int | None = None # 峰值游玩数（增强数据）
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total_samples: int | None = None # 采样次数（增强数据）
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class OnlineHistoryResponse(BaseModel):
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"""24小时在线历史响应模型"""
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history: list[OnlineHistoryPoint]
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current_stats: ServerStats
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@router.get("/stats", response_model=ServerStats, tags=["统计"])
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async def get_server_stats() -> ServerStats:
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"""
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获取服务器实时统计信息
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返回服务器注册用户数、在线用户数、正在游玩用户数等实时统计信息
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"""
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redis = get_redis()
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try:
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# 并行获取所有统计数据
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registered_count, online_count, playing_count = await asyncio.gather(
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_get_registered_users_count(redis),
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_get_online_users_count(redis),
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_get_playing_users_count(redis),
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)
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return ServerStats(
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registered_users=registered_count,
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online_users=online_count,
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playing_users=playing_count,
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timestamp=datetime.utcnow(),
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)
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except Exception as e:
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logger.error(f"Error getting server stats: {e}")
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# 返回默认值
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return ServerStats(
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registered_users=0,
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online_users=0,
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playing_users=0,
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timestamp=datetime.utcnow(),
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)
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@router.get("/stats/history", response_model=OnlineHistoryResponse, tags=["统计"])
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async def get_online_history() -> OnlineHistoryResponse:
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"""
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获取最近24小时在线统计历史
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返回过去24小时内每小时的在线用户数和游玩用户数统计，
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包含当前实时数据作为最新数据点
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"""
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try:
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# 获取历史数据 - 使用同步Redis客户端
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redis_sync = get_redis_message()
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history_data = await _redis_exec(
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redis_sync.lrange, REDIS_ONLINE_HISTORY_KEY, 0, -1
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)
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history_points = []
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# 处理历史数据
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for data in history_data:
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try:
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point_data = json.loads(data)
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# 支持新旧格式的历史数据
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history_points.append(
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OnlineHistoryPoint(
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timestamp=datetime.fromisoformat(point_data["timestamp"]),
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online_count=point_data["online_count"],
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playing_count=point_data["playing_count"],
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peak_online=point_data.get("peak_online"), # 新字段，可能不存在
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peak_playing=point_data.get(
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"peak_playing"
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), # 新字段，可能不存在
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total_samples=point_data.get(
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"total_samples"
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), # 新字段，可能不存在
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)
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)
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except (json.JSONDecodeError, KeyError, ValueError) as e:
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logger.warning(f"Invalid history data point: {data}, error: {e}")
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continue
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# 获取当前实时统计信息
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current_stats = await get_server_stats()
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# 如果历史数据为空或者最新数据超过15分钟，添加当前数据点
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if not history_points or (
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history_points
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and (
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current_stats.timestamp
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- max(history_points, key=lambda x: x.timestamp).timestamp
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).total_seconds()
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> 15 * 60
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):
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history_points.append(
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OnlineHistoryPoint(
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timestamp=current_stats.timestamp,
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online_count=current_stats.online_users,
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playing_count=current_stats.playing_users,
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peak_online=current_stats.online_users, # 当前实时数据作为峰值
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peak_playing=current_stats.playing_users,
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total_samples=1,
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)
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)
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# 按时间排序（最新的在前）
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history_points.sort(key=lambda x: x.timestamp, reverse=True)
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# 限制到最多48个数据点（24小时）
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history_points = history_points[:48]
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return OnlineHistoryResponse(
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history=history_points, current_stats=current_stats
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)
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except Exception as e:
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logger.error(f"Error getting online history: {e}")
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# 返回空历史和当前状态
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current_stats = await get_server_stats()
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return OnlineHistoryResponse(history=[], current_stats=current_stats)
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async def _get_registered_users_count(redis) -> int:
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"""获取注册用户总数（从缓存）"""
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try:
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count = await redis.get(REDIS_REGISTERED_USERS_KEY)
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return int(count) if count else 0
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except Exception as e:
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logger.error(f"Error getting registered users count: {e}")
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return 0
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async def _get_online_users_count(redis) -> int:
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"""获取当前在线用户数"""
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try:
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count = await redis.scard(REDIS_ONLINE_USERS_KEY)
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return count
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except Exception as e:
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logger.error(f"Error getting online users count: {e}")
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return 0
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async def _get_playing_users_count(redis) -> int:
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"""获取当前游玩用户数"""
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try:
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count = await redis.scard(REDIS_PLAYING_USERS_KEY)
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return count
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except Exception as e:
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logger.error(f"Error getting playing users count: {e}")
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return 0
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# 统计更新功能
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async def update_registered_users_count() -> None:
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"""更新注册用户数缓存"""
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from app.const import BANCHOBOT_ID
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from app.database import User
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from app.dependencies.database import with_db
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from sqlmodel import func, select
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redis = get_redis()
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try:
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async with with_db() as db:
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# 排除机器人用户（BANCHOBOT_ID）
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result = await db.exec(
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select(func.count()).select_from(User).where(User.id != BANCHOBOT_ID)
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)
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count = result.first()
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await redis.set(REDIS_REGISTERED_USERS_KEY, count or 0, ex=300) # 5分钟过期
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logger.debug(f"Updated registered users count: {count}")
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except Exception as e:
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logger.error(f"Error updating registered users count: {e}")
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async def add_online_user(user_id: int) -> None:
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"""添加在线用户"""
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redis_sync = get_redis_message()
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redis_async = get_redis()
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try:
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await _redis_exec(redis_sync.sadd, REDIS_ONLINE_USERS_KEY, str(user_id))
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# 检查key是否已有过期时间，如果没有则设置3小时过期
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ttl = await redis_async.ttl(REDIS_ONLINE_USERS_KEY)
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if ttl <= 0: # -1表示永不过期，-2表示不存在，0表示已过期
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await redis_async.expire(REDIS_ONLINE_USERS_KEY, 3 * 3600) # 3小时过期
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logger.debug(f"Added online user {user_id}")
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# 立即更新当前区间统计
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from app.service.enhanced_interval_stats import update_user_activity_in_interval
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asyncio.create_task(update_user_activity_in_interval(user_id, is_playing=False))
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except Exception as e:
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logger.error(f"Error adding online user {user_id}: {e}")
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async def remove_online_user(user_id: int) -> None:
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"""移除在线用户"""
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redis_sync = get_redis_message()
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try:
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await _redis_exec(redis_sync.srem, REDIS_ONLINE_USERS_KEY, str(user_id))
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await _redis_exec(redis_sync.srem, REDIS_PLAYING_USERS_KEY, str(user_id))
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except Exception as e:
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logger.error(f"Error removing online user {user_id}: {e}")
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async def add_playing_user(user_id: int) -> None:
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"""添加游玩用户"""
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redis_sync = get_redis_message()
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redis_async = get_redis()
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try:
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await _redis_exec(redis_sync.sadd, REDIS_PLAYING_USERS_KEY, str(user_id))
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# 检查key是否已有过期时间，如果没有则设置3小时过期
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ttl = await redis_async.ttl(REDIS_PLAYING_USERS_KEY)
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if ttl <= 0: # -1表示永不过期，-2表示不存在，0表示已过期
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await redis_async.expire(REDIS_PLAYING_USERS_KEY, 3 * 3600) # 3小时过期
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logger.debug(f"Added playing user {user_id}")
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# 立即更新当前区间统计
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from app.service.enhanced_interval_stats import update_user_activity_in_interval
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asyncio.create_task(update_user_activity_in_interval(user_id, is_playing=True))
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except Exception as e:
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logger.error(f"Error adding playing user {user_id}: {e}")
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async def remove_playing_user(user_id: int) -> None:
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"""移除游玩用户"""
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redis_sync = get_redis_message()
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try:
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await _redis_exec(redis_sync.srem, REDIS_PLAYING_USERS_KEY, str(user_id))
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except Exception as e:
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logger.error(f"Error removing playing user {user_id}: {e}")
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async def record_hourly_stats() -> None:
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"""记录统计数据 - 简化版本，主要作为fallback使用"""
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redis_sync = get_redis_message()
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redis_async = get_redis()
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try:
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# 先确保Redis连接正常
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await redis_async.ping()
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online_count = await _get_online_users_count(redis_async)
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playing_count = await _get_playing_users_count(redis_async)
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current_time = datetime.utcnow()
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history_point = {
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"timestamp": current_time.isoformat(),
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"online_count": online_count,
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"playing_count": playing_count,
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"peak_online": online_count,
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"peak_playing": playing_count,
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"total_samples": 1,
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}
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# 添加到历史记录
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await _redis_exec(
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redis_sync.lpush, REDIS_ONLINE_HISTORY_KEY, json.dumps(history_point)
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)
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# 只保留48个数据点（24小时，每30分钟一个点）
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await _redis_exec(redis_sync.ltrim, REDIS_ONLINE_HISTORY_KEY, 0, 47)
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# 设置过期时间为26小时，确保有足够缓冲
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await redis_async.expire(REDIS_ONLINE_HISTORY_KEY, 26 * 3600)
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logger.info(
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f"Recorded fallback stats: online={online_count}, playing={playing_count} at {current_time.strftime('%H:%M:%S')}"
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)
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except Exception as e:
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logger.error(f"Error recording fallback stats: {e}")
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