user database improvements

src/server/components/UserDatabase.js

@@ -1,5 +1,6 @@
 const { Collection } = require("@discordjs/collection");
 const { ObjectId } = require("mongodb");
+const { inspect } = require('node:util');
 
 const { AbstractUserDatabase } = require("../interfaces/");
 const { User } = require("../structures");
@@ -25,6 +26,7 @@ class UserDatabase extends AbstractUserDatabase {
     async fetchUser (id, force = false) {
 
         if (!force && this.cache.has(id)) return this.cache.get(id);
+        if (id.includes('temp')) return null;
 
         const data = await this.collection.findOne({ _id: ObjectId(id) });
         if (!data) return null;
@@ -36,12 +38,12 @@ class UserDatabase extends AbstractUserDatabase {
 
     }
 
-    async findUser (name) {
+    async findUser (username) {
 
-        let user = this.cache.find(u => u.name.toLowerCase() === name.toLowerCase());
+        let user = this.cache.find(u => u.username.toLowerCase() === username.toLowerCase());
         if (user) return Promise.resolve(user);
 
-        const data = await this.collection.findOne({ name }, { collation: { locale: 'en', strength: 2 } });
+        const data = await this.collection.findOne({ username }, { collation: { locale: 'en', strength: 2 } });
         if (!data) return null;
 
         user = this._createUser(data);
@@ -72,29 +74,61 @@ class UserDatabase extends AbstractUserDatabase {
 
     /**
      * Retrieves or creates a user based on a discord profile
-     *
+     * TODO: Somehow generalise this for any external OAuth profiles, passport normalises most profiles to the same fields
      * @param {*} profile
      * @return {*} 
      * @memberof UserDatabase
      */
     async userFromDiscord (profile) {
 
+        // TODO: Figure out what to do when a user already exists with the same username as the discord profile
+        // Will break when logging in with discord to an existing account that doesn't have a linked account
         let user = this.cache.find((u) => u.externalProfiles.discord?.id === profile.id);
         if (user) return Promise.resolve(user);
 
         const data = await this.collection.findOne({ 'externalProfiles.discord.id': profile.id });
-        if (data) user = this._createUser(data);
-        else {
+        if (data) return Promise.resolve(this._createUser(data));
+
+        // If a user with the same username already exists, force the holder of the discord account to create a new account or log in to the other account and link them
+        const existing = await this.collection.findOne({ username: profile.username }, { collation: { locale: 'en', strength: 2 } });
+        if (existing) {
+            const temp = this._createUser({ type: 'user', temporary: true, displayName: profile.username });
+            temp.addExternalProfile('discord', profile);
+            // TODO: need to store the user somewhere shared across the shards
+            this.cache.set(temp.id, temp);
+            return temp;
+        }
+
         this.logger.info(`Creating new user from Discord profile: ${profile.username} (${profile.id})`);
         user = this._createUser({ type: 'user', name: profile.username });
         user.addExternalProfile('discord', profile);
         await user.save();
         this.cache.set(user.id, user);
-        }
+
 
         return user;
     }
 
+    /**
+     * Creates a new user from username and password
+     *
+     * @param {*} username
+     * @param {*} password
+     * @memberof UserDatabase
+     */
+    async createUser (username, password) {
+
+        const user = this._createUser({
+            username,
+            type: 'user'
+        });
+        await user.setPassword(password);
+        await this.updateUser(user);
+        this.cache.set(user.id, user);
+        return user;
+
+    }
+
     /**
      * Updates user entry
      *
@@ -102,14 +136,25 @@ class UserDatabase extends AbstractUserDatabase {
      * @memberof UserDatabase
      */
     async updateUser (user) {
-        if (user.id) await this.collection.updateOne({ _id: ObjectId(user.id) }, user.json);
+        const { json } = user;
+        this.logger.debug(`Storing user ${inspect(user.json)}`);
+        if (user._id) await this.collection.updateOne({ _id: ObjectId(user._id) }, json);
         else {
-            const result = await this.collection.insertOne(user.json); 
-            user.id = result.insertedId;
+            const result = await this.collection.insertOne(json);
+            user._id = result.insertedId;
         }
         return user;
     }
 
+
+    /**
+     * Helper function for creating user object
+     * Not strictly necessary but it's here in case the constructor changes in a way that can easily be wrapped
+     *
+     * @param {object} data Raw user data
+     * @return {user}  
+     * @memberof UserDatabase
+     */
     _createUser (data) {
         if (!data) throw new Error(`Missing data to create user`);
         return new User(this, data);