transitous rewrite: refactor config

src/config.py

@@ -0,0 +1,58 @@
+import json
+import os
+from dataclasses import dataclass, field
+from typing import Optional
+
+@dataclass
+class DiscordConfig:
+    token: str
+    server: int
+    vc: int
+    formatting: str
+    emojis: bool
+
+@dataclass
+class ConnectionsConfig:
+    stations: list[str]
+    blacklist: list[str]
+    min_duration: int
+    max_wait_time: int
+    timezone: str
+    max_duration: Optional[int] = None
+
+@dataclass
+class VoiceAnnouncementConfig:
+    enabled: bool
+    stations: dict[str, str]
+
+@dataclass
+class AnnouncementConfig:
+    enabled: bool
+    voice: list[VoiceAnnouncementConfig]
+
+@dataclass
+class HttpConfig:
+    user_agent: str
+
+@dataclass
+class Config:
+    discord: DiscordConfig
+    connections: ConnectionsConfig
+    announcements: AnnouncementConfig
+    http: HttpConfig
+
+def _load_config() -> Config:
+    with open("config.json", "r") as file:
+        raw = json.load(file)
+
+    return Config(
+        discord=DiscordConfig(**raw["discord"]),
+        connections=ConnectionsConfig(**raw["connections"]),
+        announcements=AnnouncementConfig(
+            enabled=raw["announcements"]["enabled"],
+            voice=[VoiceAnnouncementConfig(**v) for v in raw["announcements"]["voice"]],
+        ),
+        http=HttpConfig(**raw["http"]),
+    )
+
+config = _load_config()