feat(api): add /info and /stream/* endpoints

api/libretime_api/core/models/preference.py

@@ -1,4 +1,45 @@
+from enum import Enum
+
 from django.db import models
+from pydantic import BaseModel
+
+
+class SitePreferences(BaseModel):
+    station_name: str
+
+
+class MessageFormatKind(int, Enum):
+    ARTIST_TITLE = 0
+    SHOW_ARTIST_TITLE = 1
+    RADIO_SHOW = 2
+
+
+class StreamPreferences(BaseModel):
+    input_fade_transition: float
+    message_format: MessageFormatKind
+    message_offline: str
+    # input_auto_switch_off: bool
+    # input_auto_switch_on: bool
+    # input_main_user: str
+    # input_main_password: str
+    # replay_gain_enabled: bool
+    # replay_gain_offset: float
+    # track_fade_in: float
+    # track_fade_out: float
+    # track_fade_transition: float
+
+
+class StreamState(BaseModel):
+    input_main_connected: bool
+    input_main_streaming: bool
+    input_show_connected: bool
+    input_show_streaming: bool
+    schedule_streaming: bool
+
+
+class SitePreferenceManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset().filter(user__isnull=True)
 
 
 class Preference(models.Model):
@@ -22,6 +63,36 @@ class Preference(models.Model):
         db_column="valstr",
     )
 
+    objects = models.Manager()
+    site = SitePreferenceManager()
+
+    @classmethod
+    def get_site_preferences(cls) -> SitePreferences:
+        entries = dict(cls.site.values_list("key", "value"))
+        return SitePreferences(
+            station_name=entries.get("station_name") or "LibreTime",
+        )
+
+    @classmethod
+    def get_stream_preferences(cls) -> StreamPreferences:
+        entries = dict(cls.site.values_list("key", "value"))
+        return StreamPreferences(
+            input_fade_transition=float(entries.get("default_transition_fade") or 0.0),
+            message_format=int(entries.get("stream_label_format") or 0),
+            message_offline=entries.get("off_air_meta") or "Offline",
+        )
+
+    @classmethod
+    def get_stream_state(cls) -> StreamState:
+        entries = dict(cls.site.values_list("key", "value"))
+        return StreamState(
+            input_main_connected=entries.get("master_dj") == "true",
+            input_main_streaming=entries.get("master_dj_switch") == "on",
+            input_show_connected=entries.get("live_dj") == "true",
+            input_show_streaming=entries.get("live_dj_switch") == "on",
+            schedule_streaming=entries.get("scheduled_play_switch") == "on",
+        )
+
     class Meta:
         managed = False
         db_table = "cc_pref"