feat: stripe integration

app/api/stripe/portal/route.ts

@@ -0,0 +1,30 @@
+import { getCurrentUser } from "@/lib/auth"
+import { stripeClient } from "@/lib/stripe"
+import { NextRequest, NextResponse } from "next/server"
+
+export async function GET(request: NextRequest) {
+  const user = await getCurrentUser()
+  if (!user) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+  }
+
+  if (!stripeClient) {
+    return new NextResponse("Stripe client is not initialized", { status: 500 })
+  }
+
+  try {
+    if (!user.stripeCustomerId) {
+      return NextResponse.json({ error: "No Stripe customer ID found for this user" }, { status: 400 })
+    }
+
+    const portalSession = await stripeClient.billingPortal.sessions.create({
+      customer: user.stripeCustomerId,
+      return_url: `${request.nextUrl.origin}/settings/profile`,
+    })
+
+    return NextResponse.redirect(portalSession.url)
+  } catch (error) {
+    console.error("Stripe portal error:", error)
+    return NextResponse.json({ error: "Failed to create Stripe portal session" }, { status: 500 })
+  }
+}