first commit

backend/app/models.py

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+from passlib.context import CryptContext
+from sqlalchemy import Column, Integer, String, Date, Boolean, Float, DateTime
+from sqlalchemy.ext.declarative import declarative_base
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+Base = declarative_base()
+
+class Violation(Base):
+    __tablename__ = "violations"
+    id = Column(Integer, primary_key=True, index=True)
+    date = Column(Date, nullable=False)
+    type = Column(String, nullable=False)
+    clause = Column(String)
+    sanction_level = Column(Integer)  # 1/2/3
+    executed = Column(Boolean, default=False)
+    confirmed = Column(Boolean, default=False)
+    remark = Column(String)  # 含屏幕时间
+    star_mark = Column(Boolean, default=False)
+
+class Debt(Base):
+    __tablename__ = "debts"
+    id = Column(Integer, primary_key=True, index=True)
+    date = Column(Date)
+    task_name = Column(String)
+    owed_amount = Column(Float)
+    interest_rate = Column(Float, default=1.5)
+    due_amount = Column(Float)
+    completed = Column(Boolean, default=False)
+    completion_date = Column(Date)
+
+class Reward(Base):
+    __tablename__ = "rewards"
+    id = Column(Integer, primary_key=True, index=True)
+    type = Column(String)  # 全勤/时长之星等
+    achieve_date = Column(Date)
+    content = Column(String)
+    exchange_date = Column(Date)
+    confirmed = Column(Boolean, default=False)
+
+class Parameter(Base):
+    __tablename__ = "parameters"
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, unique=True)
+    value = Column(String)
+    effective_date = Column(Date)
+
+class User(Base):
+    __tablename__ = "users"
+    id = Column(Integer, primary_key=True)
+    username = Column(String, unique=True, nullable=False)
+    hashed_password = Column(String, nullable=False)
+    role = Column(String, default="child")  # parent / child
+
+    def verify_password(self, password: str) -> bool:
+        return pwd_context.verify(password, self.hashed_password)