Make client id configurable

This is a global configuration for now.

discordrp_mpris/__main__.py

@@ -13,7 +13,6 @@
 
 from .config import Config
 
-CLIENT_ID = '435587535150907392'
 PLAYER_ICONS = {
     # Maps player identity name to icon name
     # https://discord.com/developers/applications/435587535150907392/rich-presence/assets
@@ -328,13 +327,17 @@ def format_details(template: str, replacements: Dict[str, Any]) -> str:
         return details
 
 
-async def main_async(loop: asyncio.AbstractEventLoop):
+async def main_async(loop: asyncio.AbstractEventLoop) -> int:
     config = Config.load()
     # TODO validate?
     configure_logging(config)
 
     mpris = await Mpris2Dbussy.create(loop=loop)
-    async with AsyncDiscordRpc.for_platform(CLIENT_ID) as discord:
+    client_id = config.raw_get('global.client_id')
+    if not client_id:
+        logger.error("client id missing!")
+        return 1
+    async with AsyncDiscordRpc.for_platform(client_id) as discord:
         instance = DiscordMpris(mpris, discord, config)
         return await instance.run()
 

discordrp_mpris/config/config.toml

@@ -6,6 +6,13 @@ log_level = "WARNING"
 poll_interval = 5
 reconnect_wait = 1
 
+# [Advanced usage]
+# Allows overriding the client id with your own.
+# This affects the icon assets that will be available for use,
+# as well as the main application name.
+# You can register your own at https://discord.com/developers/applications/.
+client_id = "435587535150907392"
+
 # The following can be overridden per player.
 [options]
 # Whether to show status for paused players.