"""Pre-Scan module."""

from typing import Dict, Optional
from dataclasses import dataclass, field


@dataclass
class PreScanResult:
    """Result of a pre-scan."""
    
    title: str
    year: Optional[int] = None
    confidence: float = 0.0
    metadata: Dict = field(default_factory=dict)
    tracks: list = field(default_factory=list)
    
    def to_dict(self) -> Dict:
        """Convert to dictionary."""
        return {
            "title": self.title,
            "year": self.year,
            "confidence": self.confidence,
            "metadata": self.metadata,
            "tracks": self.tracks
        }


class PreScan:
    """Pre-scan for discs."""
    
    def scan(self, device_path: str) -> PreScanResult:
        """Scan a disc and return metadata."""
        return PreScanResult(
            title="Unknown Disc",
            year=None,
            confidence=0.0,
            metadata={},
            tracks=[]
        )