"""
Post model for the PostgreSQL database
"""
from sqlalchemy import Column, String, Text, Boolean, DateTime, ForeignKey, func, UUID
from sqlalchemy.orm import relationship
import uuid
from app import Base

class Post(Base):
    """Post model representing a blog post or article in the system"""
    __tablename__ = 'posts'
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey('users.id', ondelete='CASCADE'), nullable=False, index=True)
    title = Column(String(200), nullable=False)
    content = Column(Text)
    is_published = Column(Boolean, default=False)
    created_at = Column(DateTime, default=func.now())
    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())
    
    # Relationships
    user = relationship("User", back_populates="posts")
    
    def __repr__(self):
        return f"<Post(title='{self.title}', user_id='{self.user_id}')>"