智教助手平台：完整初始化

- 前端：Vue3 + TS + Element Plus，24 个页面路由（课件/组题/教案/动画/思维导图/作文批改/命题/课堂/资源/社区等） - 后端：FastAPI + SQLAlchemy + SQLite，17 个路由模块，AI 服务层含降级模板 - AI：glm-5.x 推理模型已禁用思维链，确保输出真实内容 - 修复：ai_service 两处请求体注入 enable_thinking/thinking disabled - 测试账号：13900999999 / test1234
2026-07-29 16:29:10 +08:00
commit 0841b1a103
193 changed files with 44995 additions and 0 deletions
@@ -0,0 +1,103 @@
+from fastapi import HTTPException
+from sqlalchemy.orm import Session
+
+from models.credit import CreditAccount, CreditTransaction
+from models.user import User
+
+DEFAULT_CREDIT_BALANCE = 130
+DAILY_CHECKIN_CREDITS = 10
+
+CREDIT_COSTS = {
+    "courseware_generate": 8,
+    "animation_generate": 6,
+    "exercise_generate": 4,
+    "lesson_plan_generate": 5,
+    "exam_generate": 5,
+    "essay_grade": 2,
+    "chat_generate": 1,
+    "material_parse": 1,
+}
+
+
+def ensure_credit_account(db: Session, user: User) -> CreditAccount:
+    account = db.query(CreditAccount).filter(CreditAccount.user_id == user.id).first()
+    if account:
+        return account
+    account = CreditAccount(
+        user_id=user.id,
+        balance=DEFAULT_CREDIT_BALANCE,
+        total_granted=DEFAULT_CREDIT_BALANCE,
+        total_used=0,
+    )
+    db.add(account)
+    db.flush()
+    return account
+
+
+def spend_credits(db: Session, user: User, action: str, description: str = "") -> CreditAccount:
+    cost = CREDIT_COSTS.get(action, 1)
+    account = ensure_credit_account(db, user)
+    if account.balance < cost:
+        raise HTTPException(status_code=402, detail=f"积分不足，本次需要 {cost} 分，当前剩余 {account.balance} 分")
+    account.balance -= cost
+    account.total_used += cost
+    db.add(CreditTransaction(
+        user_id=user.id,
+        amount=-cost,
+        action=action,
+        description=description,
+        balance_after=account.balance,
+    ))
+    db.flush()
+    return account
+
+
+def credits_payload(account: CreditAccount, action: str) -> dict:
+    return {
+        "balance": account.balance,
+        "cost": CREDIT_COSTS.get(action, 1),
+        "action": action,
+    }
+
+
+def grant_credits(db: Session, user: User, amount: int, action: str = "grant", description: str = "") -> CreditAccount:
+    if amount <= 0:
+        raise HTTPException(status_code=400, detail="积分数量必须大于 0")
+    account = ensure_credit_account(db, user)
+    account.balance += amount
+    account.total_granted += amount
+    db.add(CreditTransaction(
+        user_id=user.id,
+        amount=amount,
+        action=action,
+        description=description,
+        balance_after=account.balance,
+    ))
+    db.flush()
+    return account
+
+
+def has_credit_transaction_today(db: Session, user: User, action: str) -> bool:
+    from datetime import datetime, time
+
+    today = datetime.now().date()
+    start = datetime.combine(today, time.min)
+    end = datetime.combine(today, time.max)
+    return db.query(CreditTransaction).filter(
+        CreditTransaction.user_id == user.id,
+        CreditTransaction.action == action,
+        CreditTransaction.created_at >= start,
+        CreditTransaction.created_at <= end,
+    ).first() is not None
+
+
+def grant_daily_checkin(db: Session, user: User) -> CreditAccount:
+    if has_credit_transaction_today(db, user, "daily_checkin"):
+        raise HTTPException(status_code=409, detail="今日积分已领取")
+    return grant_credits(
+        db,
+        user,
+        DAILY_CHECKIN_CREDITS,
+        action="daily_checkin",
+        description="每日登录领取积分",
+    )