"""Domain models for the upload use case (ADR-0008, ADR-0009)."""

import uuid
from dataclasses import dataclass


@dataclass(frozen=True)
class ValidatedUpload:
    """The result of extension/content validation, before any I/O."""

    source_type: str
    content_type: str
    content_sha256: str


@dataclass(frozen=True)
class UploadResult:
    """What `upload_source_file` returns; the route maps this to `FileUploadResponse`."""

    file_id: uuid.UUID
    ingestion_job_id: uuid.UUID
    status: str
    chunks_indexed: int
    is_new_attempt: bool
    """`False` when an identical active upload already succeeded and no new
    ingestion attempt was made (route returns `200`, not `201`)."""