"""
Data models for the proxy file system.
"""

from dataclasses import dataclass


@dataclass
class ProxyMetadata:
    """Metadata stored in a proxy file's YAML frontmatter."""

    source_path: str
    source_checksum: str       # "sha256:<hex>"
    source_size: int
    generated_at: str          # ISO 8601
    extractor: str
    extractor_version: str


@dataclass
class ExtractionResult:
    """Result returned by an extractor after processing a source file."""

    content: str
    extractor: str
    extractor_version: str