from sqlalchemy import Column, Integer, String, ForeignKey, DateTime, Text, Boolean
from sqlalchemy.orm import relationship
from datetime import datetime
from app.database import Base


class ForumThread(Base):
    """Hilo / pregunta del foro comunitario."""
    __tablename__ = "forum_threads"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"))
    title = Column(String, nullable=False, index=True)
    body = Column(Text, nullable=False)
    is_deleted = Column(Boolean, default=False, index=True)  # Soft-delete para moderación futura
    created_at = Column(DateTime, default=datetime.utcnow, index=True)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    user = relationship("User")
    replies = relationship("ForumReply", back_populates="thread", cascade="all, delete-orphan")


class ForumReply(Base):
    """Respuesta a un hilo del foro."""
    __tablename__ = "forum_replies"

    id = Column(Integer, primary_key=True, index=True)
    thread_id = Column(Integer, ForeignKey("forum_threads.id"), index=True)
    user_id = Column(Integer, ForeignKey("users.id"))
    body = Column(Text, nullable=False)
    is_deleted = Column(Boolean, default=False, index=True)  # Soft-delete para moderación futura
    created_at = Column(DateTime, default=datetime.utcnow, index=True)

    user = relationship("User")
    thread = relationship("ForumThread", back_populates="replies")