add db check fn and ignore debug logs

gemlog/db.go

@@ -114,3 +114,22 @@ func SaveGemlogEntry(config *Config, entry *GemlogEntry) error {
 
 	return nil
 }
+
+func CheckDBConnection(config *Config) error {
+	url := fmt.Sprintf("%s:%d/gemlog/", config.CouchDB.Host, config.CouchDB.Port)
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+	req.Header.Add("authorization", genBasicAuthHeader(config.CouchDB.User, config.CouchDB.Password))
+	res, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to send request: %w", err)
+	}
+	defer res.Body.Close()
+
+	if res.StatusCode == 200 {
+		return nil
+	}
+	return fmt.Errorf("unexpected status code %d", res.StatusCode)
+}