from sqlalchemy import Column, Integer, String, DateTime, Text, JSON, Boolean
from sqlalchemy.ext.declarative import declarative_base
from datetime import datetime

Base = declarative_base()

class Resource(Base):
    __tablename__ = "resources"
    id = Column(Integer, primary_key=True)
    resource_id = Column(String(64), unique=True, nullable=False)
    name = Column(String(128), nullable=False)
    description = Column(Text, nullable=True)
    resource_type = Column(String(32), nullable=False)  # e.g., "file", "database", "api"
    uri = Column(String(256), nullable=False)
    mime_type = Column(String(64), nullable=True)
    meta = Column(JSON, default={})
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
    is_public = Column(Boolean, default=True)