58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
import json
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import uuid
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from dataclasses import asdict, dataclass
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from pathlib import Path
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from app.services.exporter import ExportResult, write_export
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@dataclass(slots=True)
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class ResultMetadata:
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result_id: str
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file_path: str
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download_name: str
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mimetype: str
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def persist_result(
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output_dir: Path,
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records: list[dict[str, str]],
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union_keys: list[str],
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mode: str,
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output_format: str,
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preview_record_limit: int,
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) -> tuple[ResultMetadata, ExportResult]:
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"""Persist generated output and sidecar metadata in a temporary directory."""
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result_id = uuid.uuid4().hex
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extension = "txt" if output_format == "text" else "csv"
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mimetype = "text/plain; charset=utf-8" if extension == "txt" else "text/csv; charset=utf-8"
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file_path = output_dir / f"{result_id}.{extension}"
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metadata_path = output_dir / f"{result_id}.json"
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export_result = write_export(
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file_path=file_path,
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records=records,
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union_keys=union_keys,
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mode=mode,
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output_format=output_format,
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preview_record_limit=preview_record_limit,
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)
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metadata = ResultMetadata(
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result_id=result_id,
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file_path=str(file_path),
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download_name=f"waf-report.{extension}",
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mimetype=mimetype,
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)
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metadata_path.write_text(json.dumps(asdict(metadata)), encoding="utf-8")
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return metadata, export_result
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def load_result_metadata(output_dir: Path, result_id: str) -> dict[str, str] | None:
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"""Load sidecar metadata for a generated file."""
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metadata_path = output_dir / f"{result_id}.json"
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if not metadata_path.exists():
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return None
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return json.loads(metadata_path.read_text(encoding="utf-8"))
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