from __future__ import annotations
from datetime import datetime
from typing import Optional, TYPE_CHECKING
from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, JSON, String
from sqlalchemy.orm import Mapped, mapped_column, relationship
from sqlalchemy.sql import func
from src.apps.base.models.base import Base

if TYPE_CHECKING:
    from src.apps.merchants.models.merchant import Merchant
    from src.apps.users.models.user import User

class MerchantApiKey(Base):
    __tablename__ = "merchant_api_keys"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    merchant_id: Mapped[int] = mapped_column(Integer, ForeignKey("merchants.id"), nullable=False, index=True)
    display_name: Mapped[str] = mapped_column(String(100), nullable=False)
    key_id: Mapped[str] = mapped_column(String(20), unique=True, nullable=False, index=True)
    key_hash: Mapped[str] = mapped_column(String(128), nullable=False)
    key_salt: Mapped[str] = mapped_column(String(64), nullable=False)
    key_prefix: Mapped[str] = mapped_column(String(12), nullable=False)
    environment: Mapped[str] = mapped_column(String(10), nullable=False, default="live")
    scopes: Mapped[list] = mapped_column(JSON, nullable=False, default=list)
    allowed_ips: Mapped[Optional[list]] = mapped_column(JSON, nullable=True)
    last_used_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
    expires_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
    is_active: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    revoked_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), nullable=True)
    created_by_user_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey("users.id"), nullable=True)

    merchant: Mapped["Merchant"] = relationship("Merchant", back_populates="api_keys")
    created_by: Mapped[Optional["User"]] = relationship("User")