134 lines
4.5 KiB
Python
134 lines
4.5 KiB
Python
# -*- coding: utf-8 -*-
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"""
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通用功能使用接口
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核心：动态扣费逻辑（SVIP免费、VIP配额、普通积分）
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"""
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from fastapi import APIRouter, HTTPException, Depends
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from pydantic import BaseModel
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from datetime import date
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from sqlalchemy.orm import Session
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from app.db import get_db
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from app.models.user import User
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from app.models.business import FeatureConfig, VipConfig, PointsHistory
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router = APIRouter()
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# ==================== 数据模型 ====================
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class UseFeatureRequest(BaseModel):
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username: str
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feature_key: str
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device_id: str
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# ==================== 通用功能使用 ====================
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@router.post("/feature/use")
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async def use_feature(data: UseFeatureRequest, db: Session = Depends(get_db)):
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"""
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通用功能使用接口
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逻辑：
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1. SVIP用户：免费使用
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2. VIP用户：优先使用配额，配额用完后扣积分
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3. 普通用户：扣除积分
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"""
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# 1. 获取功能配置
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feature = db.query(FeatureConfig).filter(FeatureConfig.feature_key == data.feature_key).first()
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if not feature or not feature.enabled:
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raise HTTPException(status_code=400, detail="功能不存在或已禁用")
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# 2. 获取用户信息
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user = db.query(User).filter(User.username == data.username).first()
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if not user:
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raise HTTPException(status_code=404, detail="用户不存在")
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current_points = user.points if user.points else 0
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vip_type = user.vip_type
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vip_quota = user.vip_daily_quota if user.vip_daily_quota else 0
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quota_reset_date = user.vip_quota_reset_date
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# 3. 检查并重置VIP配额
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today = date.today()
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if vip_type in ['vip', 'svip'] and quota_reset_date != today:
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# 重置配额
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vip_config = db.query(VipConfig).filter(VipConfig.vip_type == vip_type).first()
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if vip_config:
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vip_quota = vip_config.daily_quota
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user.vip_daily_quota = vip_quota
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user.vip_quota_reset_date = today
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db.commit()
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# 4. 判断消耗类型
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cost_type = "points"
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points_cost = 0
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remaining_quota = vip_quota
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# SVIP免费
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if vip_type == 'svip' and feature.svip_points_cost == 0:
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cost_type = "free"
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message = "SVIP用户免费使用"
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# VIP配额
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elif vip_type == 'vip' and vip_quota > 0 and feature.vip_points_cost == 0:
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cost_type = "vip_quota"
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remaining_quota = vip_quota - 1
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user.vip_daily_quota = remaining_quota
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db.commit()
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message = f"VIP配额使用，剩余{remaining_quota}次"
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# 扣积分
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else:
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# 计算实际消耗
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if vip_type == 'vip' and feature.vip_points_cost > 0:
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points_cost = feature.vip_points_cost
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elif vip_type == 'svip' and feature.svip_points_cost > 0:
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points_cost = feature.svip_points_cost
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else:
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points_cost = feature.points_cost
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# 检查余额
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if current_points < points_cost:
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raise HTTPException(
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status_code=402,
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detail=f"积分不足。当前: {current_points}，需要: {points_cost}。请签到获取积分或开通VIP"
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)
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# 扣除积分
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new_balance = current_points - points_cost
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user.points = new_balance
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# 记录积分历史
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points_history = PointsHistory(
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user_id=user.id,
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username=data.username,
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type='consume',
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amount=-points_cost,
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balance=new_balance,
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description=f"使用{feature.feature_name}"
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)
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db.add(points_history)
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db.commit()
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message = f"消耗{points_cost}积分，剩余{new_balance}积分"
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# 5. 记录使用日志 (TODO: Add FeatureUsageLogs model if needed, currently skipping or adding to PointsHistory if consumed)
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# For now, we only log if points consumed. If we need separate usage log table, we need to create it.
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# The SQL version inserted into feature_usage_logs.
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# Let's assume PointsHistory covers financial aspect.
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# If we need analytics, we have analytics API.
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# 6. 返回结果
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return {
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"code": 200,
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"data": {
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"success": True,
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"feature_name": feature.feature_name,
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"cost_type": cost_type,
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"points_cost": points_cost,
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"vip_remaining_quota": remaining_quota if vip_type in ['vip', 'svip'] else None,
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"points_remaining": user.points,
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"message": message
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}
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}
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