"""ApiToken model for OpenRouter API Key Monitor.

T10: ApiToken SQLAlchemy model
"""
from datetime import datetime
from sqlalchemy import Column, Integer, String, DateTime, Boolean, ForeignKey
from sqlalchemy.orm import relationship

from openrouter_monitor.database import Base


class ApiToken(Base):
    """API Token model for public API access.
    
    Attributes:
        id: Primary key
        user_id: Foreign key to users table
        token_hash: SHA-256 hash of the token (not the token itself)
        name: Human-readable name for the token
        created_at: Timestamp when token was created
        last_used_at: Timestamp when token was last used
        is_active: Whether the token is active
        user: Relationship to user
    """
    
    __tablename__ = "api_tokens"
    
    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True)
    token_hash = Column(String(255), nullable=False, index=True)
    name = Column(String(100), nullable=False)
    created_at = Column(DateTime, default=datetime.utcnow)
    last_used_at = Column(DateTime, nullable=True)
    is_active = Column(Boolean, default=True, index=True)
    
    # Relationships
    user = relationship("User", back_populates="api_tokens", lazy="selectin")