2 files changed, 107 insertions, 0 deletions

diff --git a/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__init__.py b/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__init__.py
diff --git a/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__main__.py b/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__main__.py
new file mode 100644
index 00000000..fd739805
--- /dev/null
+++ b/overlays/abs-podcast-autoplaylist/abs_podcast_autoplaylist/__main__.py
@@ -0,0 +1,107 @@
+import click
+from pathlib import Path
+import tomllib
+import requests
+from urllib.parse import urljoin
+from operator import itemgetter
+import re
+from frozendict import frozendict
+
+class BearerAuth(requests.auth.AuthBase):
+    def __init__(self, token):
+        self.token = token
+    def __call__(self, r):
+        r.headers["authorization"] = "Bearer " + self.token
+        return r
+
+class ABSSession(requests.Session):
+    def __init__(self, config):
+        super().__init__()
+        self.base_url = config['instance']
+        self.auth = BearerAuth(config['api_token'])
+
+    def request(self, method, url, *args, **kwargs):
+        joined_url = urljoin(self.base_url, url)
+        return super().request(method, joined_url, *args, **kwargs)
+
+@click.command()
+@click.argument('config_file', type=click.Path(dir_okay=False, path_type=Path))
+def main(config_file: Path):
+    with config_file.open('rb') as fh:
+        config = tomllib.load(fh)
+
+    with ABSSession(config) as s:
+        libraries = s.get('/api/libraries').json()['libraries']
+        playlists = s.get('/api/playlists').json()['playlists']
+
+        for library_config in config['libraries']:
+            [library] = filter(lambda l: l['name'] == library_config['name'], libraries)
+            filtered_playlists = list(filter(lambda p: p['name'] == library_config['playlist'] and p['libraryId'] == library['id'], playlists))
+            def get_playlist():
+                playlist = None
+                if filtered_playlists:
+                    [playlist] = filtered_playlists
+                if not playlist:
+                    playlist = s.post('/api/playlists', json={
+                        'libraryId': library['id'],
+                        'name': library_config['playlist'],
+                    }).json()
+                return playlist
+
+            podcasts = dict()
+            items = s.get('/api/libraries/{}/items'.format(library['id'])).json()['results']
+            for item in items:
+                item = s.get('/api/items/{}'.format(item['id']), json={'expanded': True}).json()
+                episodes = list()
+                for episode in sorted(item['media']['episodes'], key = itemgetter('publishedAt')):
+                    progress = s.get('/api/me/progress/{}/{}'.format(episode['libraryItemId'], episode['id']))
+                    if progress.ok and progress.json()["isFinished"]:
+                        continue
+                    episodes.append(episode)
+                podcasts[item['media']['metadata']['title']] = list(map(lambda x: frozendict({ 'libraryItemId': x['libraryItemId'], 'episodeId': x['id']}), episodes))
+            def lookup_podcast(expr):
+                expr = re.compile(expr, flags=re.I)
+                matches = filter(lambda t: expr.search(t), podcasts.keys())
+                match list(matches):
+                    case [x]:
+                        return (x,)
+                    case _:
+                        raise RuntimeError("No unique match for ‘{}’".format(expr))
+
+            priorities = [
+                [
+                    k
+                    for item in (section if type(section) is list else [section])
+                    for k in lookup_podcast(item)
+                ]
+                for section in library_config['priorities']
+            ]
+
+            playlist_items = list()
+            for section in priorities:
+                while any(map(lambda item: item in podcasts, section)):
+                    for item in section:
+                        if not item in podcasts:
+                            continue
+
+                        if not podcasts[item]:
+                            del podcasts[item]
+                            continue
+
+                        playlist_items.append(podcasts[item].pop(0))
+
+            playlist = get_playlist()
+            current_playlist_items = map(lambda item: frozendict({ k: v for k, v in item.items() if k in {'libraryItemId', 'episodeId'}}), playlist['items'])
+
+            if current_playlist_items == playlist_items:
+                continue
+
+            to_remove = set(current_playlist_items) - set(playlist_items)
+            if to_remove:
+                s.post('/api/playlists/{}/batch/remove'.format(playlist['id']), json={'items': list(to_remove)}).raise_for_status()
+                playlist = get_playlist()
+            to_add = set(playlist_items) - set(current_playlist_items)
+            if to_add:
+                s.post('/api/playlists/{}/batch/add'.format(playlist['id']), json={'items': list(to_add)}).raise_for_status()
+
+            r = s.patch('/api/playlists/{}'.format(playlist['id']), json={'items': playlist_items}).raise_for_status()