import { NextRequest, NextResponse } from 'next/server';
import { encrypt } from '@/lib/crypto';
import { assertEnv } from '@/lib/schemas';
export const runtime = 'nodejs';
const GOOGLE_AUTH_BASE = 'https://accounts.google.com/o/oauth2/v2/auth';
const SCOPES = ['https://www.googleapis.com/auth/adwords'];
export async function GET(request: NextRequest) {
const { searchParams, origin } = request.nextUrl;
const userId = searchParams.get('userId');
const customerId = searchParams.get('customerId');
if (!userId || !customerId) {
return NextResponse.json(
{
error: 'userId and customerId are required query parameters.',
},
{ status: 400 },
);
}
const env = assertEnv();
const baseUrl = process.env.NEXTAUTH_URL || origin;
const redirectUri = `${baseUrl.replace(/\/$/, '')}/api/auth/callback`;
const statePayload = JSON.stringify({ userId, customerId, ts: Date.now() });
const state = encrypt(statePayload);
const params = new URLSearchParams({
client_id: env.GADS_CLIENT_ID,
redirect_uri: redirectUri,
response_type: 'code',
scope: SCOPES.join(' '),
access_type: 'offline',
prompt: 'consent',
state,
});
const consentUrl = `${GOOGLE_AUTH_BASE}?${params.toString()}`;
return NextResponse.redirect(consentUrl);
}
