Add Telegram notifications, make Discord optional

tests/test_env_config.py

@@ -11,6 +11,8 @@ ENV_KEYS = [
     "DISCORD_WEBHOOK_URL",
     "DISCORD_SERVER_NAME",
     "DISCORD_ROLES",
+    "TELEGRAM_BOT_TOKEN",
+    "TELEGRAM_CHAT_ID",
     "COUNTRY",
     "REFRESH_TIME",
     "TEST_MODE",
@@ -27,9 +29,28 @@ def _reload_env_config(monkeypatch, env):
     return importlib.import_module(MODULE_NAME)
 
 
-def test_missing_webhook_exits(monkeypatch):
-    with pytest.raises(SystemExit):
-        _reload_env_config(monkeypatch, {"PRODUCT_NAMES": "RTX 5090"})
+def test_no_notification_channel_does_not_exit(monkeypatch, caplog):
+    cfg = _reload_env_config(monkeypatch, {"PRODUCT_NAMES": "RTX 5090"})
+    assert not cfg.DISCORD_ENABLED
+    assert not cfg.TELEGRAM_ENABLED
+    assert "DISCORD IS NOT CONFIGURED" in caplog.text
+    assert "TELEGRAM IS NOT CONFIGURED" in caplog.text
+
+
+def test_telegram_only_is_enabled(monkeypatch):
+    cfg = _reload_env_config(
+        monkeypatch,
+        {"PRODUCT_NAMES": "RTX 5090", "TELEGRAM_BOT_TOKEN": "123:abc", "TELEGRAM_CHAT_ID": "-100"},
+    )
+    assert cfg.TELEGRAM_ENABLED
+    assert not cfg.DISCORD_ENABLED
+
+
+def test_telegram_partial_config_is_disabled(monkeypatch):
+    cfg = _reload_env_config(
+        monkeypatch, {"PRODUCT_NAMES": "RTX 5090", "TELEGRAM_BOT_TOKEN": "123:abc"}
+    )
+    assert not cfg.TELEGRAM_ENABLED
 
 
 def test_missing_product_names_exits(monkeypatch):