''' Last.fm scrobbles ''' from ..common import get_files, mcachew, Json from datetime import datetime import json from pathlib import Path from typing import NamedTuple, Any, Sequence, Iterable import pytz from my.config import lastfm as config # TODO memoised properties? # TODO lazy mode and eager mode? # lazy is a bit nicer in terms of more flexibility and less processing? # eager is a bit more explicit for error handling def inputs() -> Sequence[Path]: return get_files(config.export_path) class Scrobble(NamedTuple): raw: Json # TODO mm, no timezone? hopefuly it's UTC @property def dt(self) -> datetime: ts = int(self.raw['date']) return datetime.fromtimestamp(ts, tz=pytz.utc) @property def artist(self) -> str: return self.raw['artist'] @property def name(self) -> str: return self.raw['name'] @property def track(self) -> str: return f'{self.artist} — {self.name}' # TODO __repr__, __str__ # TODO could also be nice to make generic? maybe even depending on eagerness @mcachew(hashf=lambda: inputs()) def scrobbles() -> Iterable[Scrobble]: last = max(inputs()) j = json.loads(last.read_text()) for raw in j: yield Scrobble(raw=raw)