first commit

api/app/config.py

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+from functools import lru_cache
+from pathlib import Path
+
+from pydantic import Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")
+
+    app_name: str = "RF Propagation API"
+    api_v1_prefix: str = "/api/v1"
+    database_url: str = "postgresql+psycopg://radio:radio@postgis:5432/radio"
+    redis_url: str = "redis://redis:6379/0"
+    dem_path: Path = Field(default=Path("/data/dem"))
+    landcover_path: Path = Field(default=Path("/data/landcover"))
+    canopy_path: Path = Field(default=Path("/data/canopy"))
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()