initial..

lastfm/__init__.py

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+from functools import lru_cache
+from kython import listdir_abs, json_load, JSONType
+from typing import Dict, List, NamedTuple
+from pytz import UTC
+from datetime import datetime
+import os
+
+
+_PATH = "/L/backups/lastfm"
+
+class Scrobble(NamedTuple):
+    dt: datetime
+    track: str
+
+
+# TODO memoise...?
+
+# TODO watch out, if we keep the app running it might expire
+def _iter_scrobbles():
+    last = max(listdir_abs(_PATH))
+    # TODO mm, no timezone? wonder if it's UTC...
+    j: List[Dict[str, str]]
+    with open(last, 'r') as fo:
+        j = json_load(fo)
+    for d in j:
+        ts = int(d['date'])
+        dt = datetime.fromtimestamp(ts, tz=UTC)
+        track = f"{d['artist']} — {d['name']}"
+        yield Scrobble(dt, track)
+
+
+@lru_cache()
+def get_scrobbles():
+    return list(_iter_scrobbles())