"""邮箱验证码模型。"""
from sqlalchemy import Column, Integer, String, TIMESTAMP, func
from insurance.db.compat import db


class EmailVerificationCode(db.Model):
    """注册和找回密码用的邮箱验证码。"""
    __tablename__ = "email_verification_codes"

    id = Column(Integer, primary_key=True, autoincrement=True)
    email = Column(String(255), nullable=False, index=True)
    purpose = Column(String(32), nullable=False, index=True)
    code_hash = Column(String(128), nullable=False)
    expires_at = Column(TIMESTAMP, nullable=False)
    consumed_at = Column(TIMESTAMP)
    attempts = Column(Integer, default=0)
    ip = Column(String(64))
    created_at = Column(TIMESTAMP, server_default=func.now())