from sqlalchemy import Column, String, Integer, DateTime, ForeignKey
from sqlalchemy.sql import func
from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime
from .database import Base

class UserBankCardDB(Base):
    __tablename__ = "user_bank_cards"

    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(Integer, ForeignKey("users.userid"), nullable=False)
    name = Column(String(50), nullable=False)
    card_number = Column(String(30), nullable=False)
    bank_name = Column(String(100), nullable=False)
    create_time = Column(DateTime(timezone=True), server_default=func.now())
    update_time = Column(DateTime(timezone=True), onupdate=func.now())

class BankCardCreate(BaseModel):
    name: str = Field(..., min_length=2, max_length=50)
    card_number: str = Field(..., min_length=16, max_length=19, pattern="^[0-9]{16,19}$")
    bank_name: str = Field(..., max_length=100)

class BankCardInfo(BaseModel):
    id: int
    name: str
    card_number: str
    bank_name: str
    create_time: datetime
    
    class Config:
        from_attributes = True