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ALwrity/backend/models/asset_metadata_schema.py

77 lines
2.0 KiB
Python

"""Shared schema/builders for content asset metadata."""
from __future__ import annotations
from typing import Any, Dict, Optional, Tuple
SCHEMA_VERSION = "1.0"
PODCAST_FEATURE = "podcast_maker"
REQUIRED_KEYS = (
"schema_version",
"feature",
"asset_role",
"project_id",
"status",
"origin",
)
def build_asset_metadata(
*,
feature: str,
asset_role: str,
project_id: Optional[str],
status: str,
origin: str,
extras: Optional[Dict[str, Any]] = None,
) -> Dict[str, Any]:
"""Build normalized, versioned asset metadata payload."""
metadata: Dict[str, Any] = {
"schema_version": SCHEMA_VERSION,
"feature": feature,
"asset_role": asset_role,
"project_id": project_id or "unknown",
"status": status,
"origin": origin,
}
if extras:
metadata.update({k: v for k, v in extras.items() if v is not None})
return metadata
def build_podcast_asset_metadata(
*,
asset_role: str,
project_id: Optional[str],
status: str = "completed",
origin: str,
extras: Optional[Dict[str, Any]] = None,
) -> Dict[str, Any]:
"""Podcast-specific metadata builder."""
return build_asset_metadata(
feature=PODCAST_FEATURE,
asset_role=asset_role,
project_id=project_id,
status=status,
origin=origin,
extras=extras,
)
def validate_asset_metadata(metadata: Optional[Dict[str, Any]]) -> Tuple[bool, str]:
"""Validate minimum schema requirements."""
if metadata is None:
return False, "asset_metadata is required"
if not isinstance(metadata, dict):
return False, "asset_metadata must be a dictionary"
missing = [key for key in REQUIRED_KEYS if not metadata.get(key)]
if missing:
return False, f"asset_metadata missing required keys: {', '.join(missing)}"
if str(metadata.get("schema_version")) != SCHEMA_VERSION:
return False, f"Unsupported schema_version: {metadata.get('schema_version')}"
return True, "ok"