git init

auth.ts

@@ -0,0 +1,46 @@
+import NextAuth from 'next-auth';
+import { authConfig } from './auth.config';
+import Credentials from "next-auth/providers/credentials";
+import {z} from 'zod';
+import { sql } from '@vercel/postgres';
+import type { User } from '@/app/lib/definitions';
+import bcrypt from 'bcrypt';
+
+async function getUser(email: string): Promise<User | undefined> {
+    try {
+        const user = await sql.sql<User>`
+            SELECT * FROM users WHERE email = ${email}
+        `;
+        return user.rows[0];
+    } catch (error) {
+        console.error('Failed to get user: ', error);
+        throw new Error('Failed to get user');
+    }
+}
+
+export const { auth, signIn, signOut } = NextAuth({
+    ...authConfig,
+    providers: [Credentials({
+        async authorize(credentials) {
+            const parsedCredentials = z
+                .object({
+                    email: z.string().email(), password: z.string().min(6)
+                })
+                .safeParse(credentials)
+
+            if (parsedCredentials.success) {
+                const { email, password } = parsedCredentials.data;
+                const user = await getUser(email);
+                if (!user) return null;
+                const passwordsMatch = await bcrypt.compare(password, user.password);
+
+                if (passwordsMatch) {
+                    return user;
+                }
+            }
+
+            console.log('Invalid credentials');
+            return null;
+        },
+    })],
+});