feat(mongo): enhance custom MongoDB connection string handling

- Introduced a new utility function to build the MongoDB connection string dynamically, ensuring the database name is correctly set in the URL.
- Updated the custom connection string logic to utilize the new function, improving clarity and maintainability.

These changes enhance the flexibility of MongoDB configurations, ensuring accurate connection strings are generated based on provided parameters.

Signed-off-by: Innei <tukon479@gmail.com>

Author: Innei

apps/core/src/app.config.ts

@@ -234,6 +234,17 @@ export const CROSS_DOMAIN = {
 }
 
 const customConnectionString = argv.db_connection_string || MONGO_CONNECTION
+
+function buildMongoConnectionString(
+  connectionString: string,
+  dbName: string,
+): string {
+  const url = new URL(connectionString)
+  // Replace or set the pathname to the database name
+  url.pathname = `/${dbName}`
+  return url.toString()
+}
+
 export const MONGO_DB = {
   dbName: argv.collection_name || 'mx-space',
   host: argv.db_host || '127.0.0.1',
@@ -250,7 +261,7 @@ export const MONGO_DB = {
   },
   get customConnectionString() {
     return customConnectionString
-      ? `${customConnectionString}/${this.dbName}`
+      ? buildMongoConnectionString(customConnectionString, this.dbName)
       : undefined
   },
 }