Add duplicate domain check, closes #5

src/main.rs

@@ -146,6 +146,7 @@ impl Config {
                 let msg = format!("Using {}", path);
                 directories.push(system_path.to_path_buf());
                 info!(msg);
+                Self::check_for_duplicate_domains(&user_config.domain_configs);
                 Ok((Config {
                     user: user_config,
                     system: data,
@@ -224,6 +225,32 @@ impl Config {
             }
         }
     }
+
+    fn check_for_duplicate_domains(domain_configs: &[DomainLinkConfig]) {
+        let mut checked_domains: Vec<String> = vec![];
+        for (cfg_idx, config) in domain_configs.iter().enumerate() {
+            for (idx, domain) in config.domains.iter().enumerate() {
+                if !checked_domains.contains(domain) {
+                    if config.domains[idx+1..].contains(domain) {
+                        // Error
+                        let msg = format!("Duplicate Domain use detected for '{domain}");
+                        warn!(msg);
+                        checked_domains.push(domain.clone());
+                    }
+                    else {
+                        for d in domain_configs[cfg_idx+1..].iter() {
+                            if d.domains.contains(domain) {
+                                let msg = format!("Duplicate Domain use detected for '{domain}");
+                                warn!(msg);
+                                checked_domains.push(domain.clone());
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
 }
 
 #[actix_web::main]