core: setup: prefer mongo connection uri

packages/hydrooj/src/service/db.ts

@@ -2,6 +2,7 @@
 import {
     Collection, Db, IndexDescription, MongoClient,
 } from 'mongodb';
+import mongoUri from 'mongodb-uri';
 import { Time } from '@hydrooj/utils';
 import { Logger } from '../logger';
 import options from '../options';
@@ -38,6 +39,7 @@ class MongoService {
     async start() {
         const opts = options() || {};
         let mongourl = MongoService.buildUrl(opts);
+        const url = mongoUri.parse(mongourl);
         if (process.env.CI) {
             const { MongoMemoryServer } = require('mongodb-memory-server');
             const mongod = await MongoMemoryServer.create();
@@ -45,7 +47,7 @@ class MongoService {
         }
         this.opts = opts;
         this.client = await MongoClient.connect(mongourl);
-        this.db = this.client.db(opts.name || 'hydro');
+        this.db = this.client.db(url.database || 'hydro');
         await bus.parallel('database/connect', this.db);
         setInterval(() => this.fixExpireAfter(), Time.hour);
     }