Backend Monitorink: serveur PNG (Claude usage + météo + HA)

backend/config.py

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+"""Configuration centralisée de Monitorink, chargée depuis l'environnement.
+
+Toutes les valeurs sensibles (token Claude, token Home Assistant) viennent de variables
+d'environnement / `.env` et ne sont jamais versionnées.
+"""
+from __future__ import annotations
+
+import os
+from dataclasses import dataclass, field
+
+from dotenv import load_dotenv
+
+load_dotenv()
+
+
+def _get(name: str, default: str = "") -> str:
+    return os.environ.get(name, default).strip()
+
+
+def _get_list(name: str) -> list[str]:
+    raw = _get(name)
+    return [item.strip() for item in raw.split(",") if item.strip()]
+
+
+@dataclass(frozen=True)
+class HAEntity:
+    """Une entité Home Assistant à afficher. Format env: `entity_id|Libellé|unité`."""
+
+    entity_id: str
+    label: str
+    unit: str = ""
+
+    @classmethod
+    def parse(cls, spec: str) -> "HAEntity":
+        parts = [p.strip() for p in spec.split("|")]
+        entity_id = parts[0]
+        label = parts[1] if len(parts) > 1 and parts[1] else entity_id
+        unit = parts[2] if len(parts) > 2 else ""
+        return cls(entity_id=entity_id, label=label, unit=unit)
+
+
+@dataclass(frozen=True)
+class Config:
+    # --- Affichage ---
+    timezone: str = field(default_factory=lambda: _get("MONITORINK_TZ", "Europe/Paris"))
+    locale: str = field(default_factory=lambda: _get("MONITORINK_LOCALE", "fr_FR"))
+    width: int = field(default_factory=lambda: int(_get("MONITORINK_WIDTH", "1264")))
+    height: int = field(default_factory=lambda: int(_get("MONITORINK_HEIGHT", "1680")))
+
+    # --- Claude ---
+    claude_token: str = field(default_factory=lambda: _get("MONITORINK_CLAUDE_TOKEN"))
+    claude_ua: str = field(
+        default_factory=lambda: _get("MONITORINK_CLAUDE_UA", "claude-code/2.1.172")
+    )
+    ccusage_enabled: bool = field(
+        default_factory=lambda: _get("MONITORINK_CCUSAGE", "0") in ("1", "true", "yes")
+    )
+
+    # --- Météo (Open-Meteo, sans clé) ---
+    weather_lat: float = field(default_factory=lambda: float(_get("MONITORINK_LAT", "48.8566")))
+    weather_lon: float = field(default_factory=lambda: float(_get("MONITORINK_LON", "2.3522")))
+
+    # --- Home Assistant ---
+    ha_base_url: str = field(default_factory=lambda: _get("MONITORINK_HA_URL").rstrip("/"))
+    ha_token: str = field(default_factory=lambda: _get("MONITORINK_HA_TOKEN"))
+
+    # --- Cache / rafraîchissement serveur ---
+    cache_ttl_seconds: int = field(
+        default_factory=lambda: int(_get("MONITORINK_CACHE_TTL", "120"))
+    )
+
+    @property
+    def ha_entities(self) -> list[HAEntity]:
+        return [HAEntity.parse(s) for s in _get_list("MONITORINK_HA_ENTITIES")]
+
+    @property
+    def ha_enabled(self) -> bool:
+        return bool(self.ha_base_url and self.ha_token)
+
+
+config = Config()