230 lines
8.4 KiB
Python
230 lines
8.4 KiB
Python
from __future__ import annotations
|
|
|
|
from typing import Any, Dict, Sequence, Optional
|
|
import json
|
|
import sys
|
|
|
|
from SYS.logger import log
|
|
from pathlib import Path
|
|
|
|
from ._shared import Cmdlet, CmdletArg, SharedArgs, parse_cmdlet_args, get_field
|
|
import pipeline as ctx
|
|
from result_table import ResultTable
|
|
|
|
|
|
class Get_Metadata(Cmdlet):
|
|
"""Class-based get-metadata cmdlet with self-registration."""
|
|
|
|
def __init__(self) -> None:
|
|
"""Initialize get-metadata cmdlet."""
|
|
super().__init__(
|
|
name="get-metadata",
|
|
summary="Print metadata for files by hash and storage backend.",
|
|
usage="get-metadata [-hash <sha256>] [-store <backend>]",
|
|
alias=["meta"],
|
|
arg=[
|
|
SharedArgs.HASH,
|
|
SharedArgs.STORE,
|
|
],
|
|
detail=[
|
|
"- Retrieves metadata from storage backend using file hash as identifier.",
|
|
"- Shows hash, MIME type, size, duration/pages, known url, and import timestamp.",
|
|
"- Hash and store are taken from piped result or can be overridden with -hash/-store flags.",
|
|
"- All metadata is retrieved from the storage backend's database (single source of truth).",
|
|
],
|
|
exec=self.run,
|
|
)
|
|
self.register()
|
|
|
|
@staticmethod
|
|
def _extract_imported_ts(meta: Dict[str, Any]) -> Optional[int]:
|
|
"""Extract an imported timestamp from metadata if available."""
|
|
if not isinstance(meta, dict):
|
|
return None
|
|
|
|
# Prefer explicit time_imported if present
|
|
explicit = meta.get("time_imported")
|
|
if isinstance(explicit, (int, float)):
|
|
return int(explicit)
|
|
|
|
# Try parsing string timestamps
|
|
if isinstance(explicit, str):
|
|
try:
|
|
import datetime as _dt
|
|
return int(_dt.datetime.fromisoformat(explicit).timestamp())
|
|
except Exception:
|
|
pass
|
|
|
|
return None
|
|
|
|
@staticmethod
|
|
def _format_imported(ts: Optional[int]) -> str:
|
|
"""Format timestamp as readable string."""
|
|
if not ts:
|
|
return ""
|
|
try:
|
|
import datetime as _dt
|
|
return _dt.datetime.utcfromtimestamp(ts).strftime("%Y-%m-%d %H:%M:%S")
|
|
except Exception:
|
|
return ""
|
|
|
|
@staticmethod
|
|
def _build_table_row(title: str, store: str, path: str, mime: str, size_bytes: Optional[int],
|
|
dur_seconds: Optional[int], imported_ts: Optional[int], url: list[str],
|
|
hash_value: Optional[str], pages: Optional[int] = None) -> Dict[str, Any]:
|
|
"""Build a table row dict with metadata fields."""
|
|
size_mb = None
|
|
if isinstance(size_bytes, int):
|
|
try:
|
|
size_mb = int(size_bytes / (1024 * 1024))
|
|
except Exception:
|
|
size_mb = None
|
|
|
|
dur_int = int(dur_seconds) if isinstance(dur_seconds, (int, float)) else None
|
|
pages_int = int(pages) if isinstance(pages, (int, float)) else None
|
|
imported_label = Get_Metadata._format_imported(imported_ts)
|
|
|
|
duration_label = "Duration(s)"
|
|
duration_value = str(dur_int) if dur_int is not None else ""
|
|
if mime and mime.lower().startswith("application/pdf"):
|
|
duration_label = "Pages"
|
|
duration_value = str(pages_int) if pages_int is not None else ""
|
|
|
|
columns = [
|
|
("Title", title or ""),
|
|
("Hash", hash_value or ""),
|
|
("MIME", mime or ""),
|
|
("Size(MB)", str(size_mb) if size_mb is not None else ""),
|
|
(duration_label, duration_value),
|
|
("Imported", imported_label),
|
|
("Store", store or ""),
|
|
]
|
|
|
|
return {
|
|
"title": title or path,
|
|
"path": path,
|
|
"store": store,
|
|
"mime": mime,
|
|
"size_bytes": size_bytes,
|
|
"duration_seconds": dur_int,
|
|
"pages": pages_int,
|
|
"imported_ts": imported_ts,
|
|
"imported": imported_label,
|
|
"hash": hash_value,
|
|
"url": url,
|
|
"columns": columns,
|
|
}
|
|
|
|
@staticmethod
|
|
def _add_table_body_row(table: ResultTable, row: Dict[str, Any]) -> None:
|
|
"""Add a single row to the ResultTable using the prepared columns."""
|
|
columns = row.get("columns") if isinstance(row, dict) else None
|
|
lookup: Dict[str, Any] = {}
|
|
if isinstance(columns, list):
|
|
for col in columns:
|
|
if isinstance(col, tuple) and len(col) == 2:
|
|
label, value = col
|
|
lookup[str(label)] = value
|
|
|
|
row_obj = table.add_row()
|
|
row_obj.add_column("Hash", lookup.get("Hash", ""))
|
|
row_obj.add_column("MIME", lookup.get("MIME", ""))
|
|
row_obj.add_column("Size(MB)", lookup.get("Size(MB)", ""))
|
|
if "Duration(s)" in lookup:
|
|
row_obj.add_column("Duration(s)", lookup.get("Duration(s)", ""))
|
|
elif "Pages" in lookup:
|
|
row_obj.add_column("Pages", lookup.get("Pages", ""))
|
|
else:
|
|
row_obj.add_column("Duration(s)", "")
|
|
|
|
def run(self, result: Any, args: Sequence[str], config: Dict[str, Any]) -> int:
|
|
"""Main execution entry point."""
|
|
# Parse arguments
|
|
parsed = parse_cmdlet_args(args, self)
|
|
|
|
# Get hash and store from parsed args or result
|
|
file_hash = parsed.get("hash") or get_field(result, "hash")
|
|
storage_source = parsed.get("store") or get_field(result, "store")
|
|
|
|
if not file_hash:
|
|
log("No hash available - use -hash to specify", file=sys.stderr)
|
|
return 1
|
|
|
|
if not storage_source:
|
|
log("No storage backend specified - use -store to specify", file=sys.stderr)
|
|
return 1
|
|
|
|
# Use storage backend to get metadata
|
|
try:
|
|
from Store import Store
|
|
storage = Store(config)
|
|
backend = storage[storage_source]
|
|
|
|
# Get metadata from backend
|
|
metadata = backend.get_metadata(file_hash)
|
|
|
|
if not metadata:
|
|
log(f"No metadata found for hash {file_hash[:8]}... in {storage_source}", file=sys.stderr)
|
|
return 1
|
|
|
|
# Extract title from tags if available
|
|
title = get_field(result, "title") or file_hash[:16]
|
|
if not get_field(result, "title"):
|
|
# Try to get title from tags
|
|
try:
|
|
tags, _ = backend.get_tag(file_hash)
|
|
for tag in tags:
|
|
if tag.lower().startswith("title:"):
|
|
title = tag.split(":", 1)[1]
|
|
break
|
|
except Exception:
|
|
pass
|
|
|
|
# Extract metadata fields
|
|
mime_type = metadata.get("mime") or metadata.get("ext", "")
|
|
file_size = metadata.get("size")
|
|
duration_seconds = metadata.get("duration")
|
|
pages = metadata.get("pages")
|
|
url = metadata.get("url") or []
|
|
imported_ts = self._extract_imported_ts(metadata)
|
|
|
|
# Normalize url
|
|
if isinstance(url, str):
|
|
try:
|
|
url = json.loads(url)
|
|
except (json.JSONDecodeError, TypeError):
|
|
url = []
|
|
if not isinstance(url, list):
|
|
url = []
|
|
|
|
# Build display row
|
|
row = self._build_table_row(
|
|
title=title,
|
|
store=storage_source,
|
|
path=metadata.get("path", ""),
|
|
mime=mime_type,
|
|
size_bytes=file_size,
|
|
dur_seconds=duration_seconds,
|
|
imported_ts=imported_ts,
|
|
url=url,
|
|
hash_value=file_hash,
|
|
pages=pages,
|
|
)
|
|
|
|
table_title = title
|
|
table = ResultTable(table_title).init_command("get-metadata", list(args))
|
|
self._add_table_body_row(table, row)
|
|
ctx.set_last_result_table_overlay(table, [row], row)
|
|
ctx.emit(row)
|
|
return 0
|
|
|
|
except KeyError:
|
|
log(f"Storage backend '{storage_source}' not found", file=sys.stderr)
|
|
return 1
|
|
except Exception as exc:
|
|
log(f"Failed to get metadata: {exc}", file=sys.stderr)
|
|
return 1
|
|
|
|
|
|
CMDLET = Get_Metadata()
|