from datetime import datetime
from typing import Optional
from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Integer, String, Text
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.sql import func
from src.apps.base.models.base import Base


class InterchangeRate(Base):
    __tablename__ = "interchange_rates"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    card_network: Mapped[str] = mapped_column(String(50), nullable=False)
    card_type: Mapped[str] = mapped_column(String(50), nullable=False)
    transaction_type: Mapped[str] = mapped_column(String(30), nullable=False)
    rate_percentage: Mapped[float] = mapped_column(Float, nullable=False)
    fixed_fee_cents: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    description: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
    effective_from: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
    effective_to: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True, index=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    updated_at: Mapped[Optional[datetime]] = mapped_column(
        DateTime(timezone=True), nullable=True, onupdate=func.now()
    )