import {NextRequest, NextResponse} from "next/server";

const AUTH_COOKIE_NAME = "storeai-auth";
const PROTECTED_PREFIXES = ["/dashboard", "/onboarding"];
const AUTH_PATHS = ["/login", "/signup"];

export function middleware(request: NextRequest) {
    const {pathname, search} = request.nextUrl;
    const isAuthenticated = request.cookies.get(AUTH_COOKIE_NAME)?.value === "1";
    const isProtectedPath = PROTECTED_PREFIXES.some((prefix) => pathname === prefix || pathname.startsWith(`${prefix}/`));
    const isAuthPath = AUTH_PATHS.includes(pathname);

    if (isProtectedPath && !isAuthenticated) {
        const url = request.nextUrl.clone();
        url.pathname = "/login";
        url.search = "";
        url.searchParams.set("next", `${pathname}${search}`);
        return NextResponse.redirect(url);
    }

    if (isAuthPath && isAuthenticated) {
        const url = request.nextUrl.clone();
        url.pathname = "/dashboard";
        url.search = "";
        return NextResponse.redirect(url);
    }

    return NextResponse.next();
}

export const config = {
    matcher: ["/dashboard/:path*", "/onboarding/:path*", "/login", "/signup"],
};