feat: initial setup of database and auth

lib/auth-client.ts

@@ -0,0 +1,15 @@
+import { createAuthClient } from 'better-auth/client'
+import { adminClient, emailOTPClient, lastLoginMethodClient } from 'better-auth/client/plugins'
+import { passkeyClient } from '@better-auth/passkey/client'
+
+export const authClient = createAuthClient({
+    baseURL: process.env.NEXT_PUBLIC_BASE_URL || "https://localhost:3000",
+    plugins: [
+        emailOTPClient(),
+        passkeyClient(),
+        lastLoginMethodClient(),
+        adminClient()
+    ]
+})
+
+export const { signIn, signOut, signUp, getSession, useSession } = authClient

lib/auth.ts

@@ -0,0 +1,59 @@
+import { betterAuth } from 'better-auth'
+import { admin, emailOTP, lastLoginMethod } from 'better-auth/plugins'
+import { passkey } from '@better-auth/passkey'
+import { drizzleAdapter } from '@better-auth/drizzle-adapter'
+import { db } from '@/lib/db/index'
+
+export const auth = betterAuth({
+    experimental: { joins: true },
+    database: drizzleAdapter(db, {
+        provider: 'pg'
+    }),
+    plugins: [
+        emailOTP({
+            async sendVerificationOTP({ email, otp, type }) {
+                if (type === 'sign-in') {
+                    // TODO: send the OTP to the user's email address
+                } else if (type === 'email-verification') {
+                    // TODO: send the OTP to the user's email address for email verification
+                } else {
+                    // TODO: send the OTP to the user's email address for password reset
+                }
+            }
+        }),
+        passkey(),
+        lastLoginMethod(),
+        admin()
+    ],
+    socialProviders: {
+        google: {
+            clientId: process.env.GOOGLE_CLIENT_ID || "",
+            clientSecret: process.env.GOOGLE_CLIENT_SECRET || "",
+        },
+        discord: {
+            clientId: process.env.DISCORD_CLIENT_ID || "",
+            clientSecret: process.env.DISCORD_CLIENT_SECRET || "",
+        },
+    },
+    trustedOrigins: [process.env.NEXT_PUBLIC_BASE_URL || "https://localhost:3000"],
+    rateLimit: {
+        enabled: true,
+        window: 60,
+        max: 100
+    },
+    session: {
+        expiresIn: 60 * 60 * 24 * 7,
+        updateAge: 60 * 60 * 24,
+        cookieCache: {
+            enabled: true,
+            maxAge: 15 * 60,
+        },
+    },
+    account: {
+        accountLinking: {
+            enabled: true,
+            trustedProviders: ['google', 'discord'],
+            allowDifferentEmails: true
+        }
+    }
+})