"""File storage model."""

import uuid
from sqlalchemy import Column, String, Boolean, DateTime, BigInteger, ForeignKey, Text
from sqlalchemy.sql import func

from app.db.base import Base


class StoredFile(Base):
    """Model for tracking uploaded files."""

    __tablename__ = "stored_files"

    id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))

    # Original file info
    original_filename = Column(String(255), nullable=False)
    content_type = Column(String(100), nullable=True)
    size_bytes = Column(BigInteger, nullable=False)

    # Storage info
    storage_path = Column(String(500), nullable=False)  # Relative path in storage
    storage_type = Column(String(20), default="local", nullable=False)  # local, s3, etc.

    # Metadata
    description = Column(Text, nullable=True)
    tags = Column(Text, nullable=True)  # JSON array as text

    # Access control
    is_public = Column(Boolean, default=False, nullable=False)
    uploaded_by = Column(String(36), ForeignKey("users.id", ondelete="SET NULL"), nullable=True)

    # Hash for deduplication/integrity
    file_hash = Column(String(64), nullable=True, index=True)  # SHA-256

    # Timestamps
    created_at = Column(DateTime, server_default=func.now(), nullable=False)
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), nullable=False)

    # Soft delete
    is_deleted = Column(Boolean, default=False, nullable=False)
    deleted_at = Column(DateTime, nullable=True)