feat: username/ww login, tijdzone fix, Vannacht → Eergisternacht"

src/lib/auth.ts

@@ -1,33 +1,47 @@
 import { NextAuthOptions } from "next-auth";
 import DiscordProvider from "next-auth/providers/discord";
+import CredentialsProvider from "next-auth/providers/credentials";
 import { PrismaAdapter } from "@next-auth/prisma-adapter";
+import bcrypt from "bcryptjs";
 import { prisma } from "./prisma";
 
 export const authOptions: NextAuthOptions = {
   adapter: PrismaAdapter(prisma),
-  // JWT strategy zodat de middleware de sessie kan verifieren
-  // zonder een database call te doen bij elk request
-  session: {
-    strategy: "jwt",
-  },
+  session: { strategy: "jwt" },
   providers: [
     DiscordProvider({
       clientId: process.env.DISCORD_CLIENT_ID!,
       clientSecret: process.env.DISCORD_CLIENT_SECRET!,
     }),
+    CredentialsProvider({
+      name: "credentials",
+      credentials: {
+        username: { label: "Gebruikersnaam", type: "text" },
+        password: { label: "Wachtwoord", type: "password" },
+      },
+      async authorize(credentials) {
+        if (!credentials?.username || !credentials?.password) return null;
+
+        const user = await prisma.user.findUnique({
+          where: { username: credentials.username },
+        });
+
+        if (!user?.password) return null;
+
+        const valid = await bcrypt.compare(credentials.password, user.password);
+        if (!valid) return null;
+
+        return { id: user.id, name: user.name, email: user.email, image: user.image };
+      },
+    }),
   ],
   callbacks: {
     jwt({ token, user }) {
-      // user is alleen aanwezig bij eerste login
-      if (user) {
-        token.id = user.id;
-      }
+      if (user) token.id = user.id;
       return token;
     },
     session({ session, token }) {
-      if (session.user) {
-        session.user.id = token.id as string;
-      }
+      if (session.user) session.user.id = token.id as string;
       return session;
     },
   },