from dataclasses import dataclass, field
from datetime import datetime, timezone
from typing import Any

@dataclass(frozen=True)
class SourceRef:
    repository: str
    path: str
    revision: str = "main"

@dataclass(frozen=True)
class Document:
    source: SourceRef
    content: str
    metadata: dict[str, Any] = field(default_factory=dict)

@dataclass(frozen=True)
class IngestionRequest:
    source: SourceRef
    destination: str = "sharepoint"

@dataclass(frozen=True)
class IngestionResult:
    accepted: bool
    document: Document | None = None
    message: str = ""
    created_at: datetime = field(default_factory=lambda: datetime.now(timezone.utc))