"""Player edit model for tracking media edited on players."""
from datetime import datetime
from typing import Optional

from app.extensions import db


class PlayerEdit(db.Model):
    """Player edit model for tracking media files edited on player devices.
    
    Attributes:
        id: Primary key
        player_id: Foreign key to player
        content_id: Foreign key to content that was edited
        original_name: Original filename
        new_name: New filename after editing
        version: Edit version number (v1, v2, etc.)
        user: User who made the edit (from player)
        time_of_modification: When the edit was made
        metadata_path: Path to the metadata JSON file
        edited_file_path: Path to the edited file
        created_at: Record creation timestamp
    """
    __tablename__ = 'player_edit'
    
    id = db.Column(db.Integer, primary_key=True)
    player_id = db.Column(db.Integer, db.ForeignKey('player.id'), nullable=False, index=True)
    content_id = db.Column(db.Integer, db.ForeignKey('content.id'), nullable=False, index=True)
    original_name = db.Column(db.String(255), nullable=False)
    new_name = db.Column(db.String(255), nullable=False)
    version = db.Column(db.Integer, default=1, nullable=False)
    user = db.Column(db.String(255), nullable=True)
    time_of_modification = db.Column(db.DateTime, nullable=True)
    metadata_path = db.Column(db.String(512), nullable=True)
    edited_file_path = db.Column(db.String(512), nullable=False)
    created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False, index=True)
    
    # Relationships
    player = db.relationship('Player', backref=db.backref('edits', lazy='dynamic'))
    content = db.relationship('Content', backref=db.backref('edits', lazy='dynamic'))
    
    def __repr__(self) -> str:
        """String representation of PlayerEdit."""
        return f'<PlayerEdit {self.original_name} v{self.version} by {self.user or "unknown"}>'
    
    def to_dict(self) -> dict:
        """Convert to dictionary for API responses."""
        return {
            'id': self.id,
            'player_id': self.player_id,
            'player_name': self.player.name if self.player else None,
            'content_id': self.content_id,
            'original_name': self.original_name,
            'new_name': self.new_name,
            'version': self.version,
            'user': self.user,
            'time_of_modification': self.time_of_modification.isoformat() if self.time_of_modification else None,
            'created_at': self.created_at.isoformat() if self.created_at else None,
            'edited_file_path': self.edited_file_path
        }