add registration and session logic

src/app/lib/session.ts

@@ -0,0 +1,45 @@
+import 'server-only'
+import { cookies } from 'next/headers'
+import { SignJWT, jwtVerify } from 'jose'
+/* import { SessionPayload } from '@/app/lib/definitions' */
+
+const secretKey = process.env.SESSION_SECRET
+const encodedKey = new TextEncoder().encode(secretKey)
+
+export async function encrypt(payload: any) {
+	return new SignJWT(payload)
+		.setProtectedHeader({ alg: 'HS256' })
+		.setIssuedAt()
+		.setExpirationTime('7d')
+		.sign(encodedKey)
+}
+
+export async function decrypt(session: string | undefined = '') {
+	try {
+		const { payload } = await jwtVerify(session, encodedKey, {
+			algorithms: ['HS256'],
+		})
+		return payload
+	} catch (error) {
+		console.log('Failed to verify session')
+	}
+}
+
+export async function createSession(userId: string) {
+	const expiresAt = new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)
+	const session = await encrypt({ userId, expiresAt })
+	const cookieStore = await cookies()
+
+	cookieStore.set('session', session, {
+		httpOnly: true,
+		secure: true,
+		expires: expiresAt,
+		sameSite: 'lax',
+		path: '/',
+	})
+}
+
+export async function deleteSession() {
+	const cookieStore = await cookies()
+	cookieStore.delete('session')
+}