feat: add configuration module with pydantic-settings

Made-with: Cursor

src/ntr_fetcher/config.py

@@ -0,0 +1,14 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    model_config = {"env_prefix": "NTR_"}
+
+    port: int = 8000
+    host: str = "127.0.0.1"
+    db_path: str = "./ntr_fetcher.db"
+    poll_interval_seconds: int = 3600
+    admin_token: str
+    soundcloud_user: str = "nicktherat"
+    show_day: int = 2
+    show_hour: int = 22

tests/test_config.py

@@ -0,0 +1,30 @@
+from ntr_fetcher.config import Settings
+
+
+def test_settings_defaults():
+    settings = Settings(admin_token="test-secret")
+    assert settings.port == 8000
+    assert settings.host == "127.0.0.1"
+    assert settings.db_path == "./ntr_fetcher.db"
+    assert settings.poll_interval_seconds == 3600
+    assert settings.soundcloud_user == "nicktherat"
+    assert settings.show_day == 2
+    assert settings.show_hour == 22
+
+
+def test_settings_from_env(monkeypatch):
+    monkeypatch.setenv("NTR_PORT", "9090")
+    monkeypatch.setenv("NTR_HOST", "0.0.0.0")
+    monkeypatch.setenv("NTR_ADMIN_TOKEN", "my-secret")
+    monkeypatch.setenv("NTR_SOUNDCLOUD_USER", "someoneelse")
+    settings = Settings()
+    assert settings.port == 9090
+    assert settings.host == "0.0.0.0"
+    assert settings.admin_token == "my-secret"
+    assert settings.soundcloud_user == "someoneelse"
+
+
+def test_settings_admin_token_required():
+    import pytest
+    with pytest.raises(Exception):
+        Settings()