"""File metadata schema."""

from pydantic import BaseModel, Field


class FileMetadata(BaseModel):
    """File metadata with optional extended fields for various use cases."""

    hash: str = Field(default=..., description="Hash of the file content")
    mtime_ms: float = Field(default=..., description="Last modification time in milliseconds")
    size: int = Field(default=..., description="File size in bytes")
    path: str | None = Field(default=None, description="Relative path to the session file")
    content: str | None = Field(default=None, description="Parsed content from the session file")
    chunk_count: int | None = Field(default=None, description="Number of chunks in the file")
    metadata: dict = Field(default_factory=dict, description="Additional metadata")