"""
User Document Link Model
"""
from sqlalchemy import Column, String, Text, Date
from sqlalchemy.dialects.postgresql import UUID, JSONB
from datetime import datetime
from app.core.database import Base
import uuid


class UserDocumentLink(Base):
    """
    User Document Link model - Links users to their identity/compliance documents
    """
    __tablename__ = "user_document_links"
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), nullable=False)
    document_id = Column(UUID(as_uuid=True), nullable=False)
    
    # Document type
    document_link_type = Column(Text, nullable=False)  # 'national_id', 'driver_license', etc.
    
    # Expiry tracking
    issued_at = Column(Date)
    expires_at = Column(Date)
    
    # Metadata
    notes = Column(Text)
    additional_metadata = Column(JSONB, default=dict)
    
    # Timestamps
    created_at = Column(String(50), default=lambda: datetime.utcnow().isoformat())
    updated_at = Column(String(50), default=lambda: datetime.utcnow().isoformat())
    
    def __repr__(self):
        return f"<UserDocumentLink(user_id='{self.user_id}', type='{self.document_link_type}')>"