//! Scans the SSR fixture's authored JS for tokens that only appear when React
//! Server Components, the Flight protocol, or a meta-framework SSR runtime is
//! in play. The scan goes red the moment one of them enters the source.

use std::path::Path;

/// Tokens that only appear when RSC / Flight / streaming rendering is in play.
const FORBIDDEN: &[&str] = &[
    // React Server Components / Flight
    "react-server-dom",
    "renderToReadableStream",
    "renderToPipeableStream",
    "createFromReadableStream",
    "createFromFetch",
    "use server",
    // SSR runtimes / meta-frameworks
    "next/",
    "nuxt",
    "@sveltejs/kit",
    "sveltekit",
];

const SCANNED: &[&str] = &[
    concat!(env!("CARGO_MANIFEST_DIR"), "/tests/fixture/entry.js"),
    concat!(env!("CARGO_MANIFEST_DIR"), "/tests/fixture/Hello.js"),
    concat!(env!("CARGO_MANIFEST_DIR"), "/tests/fixture/package.json"),
];

#[test]
fn ssr_has_no_rsc_or_flight_surface() {
    for path in SCANNED {
        assert!(
            Path::new(path).is_file(),
            "{path} is a tracked fixture this scan reads; it is missing",
        );
        let src = std::fs::read_to_string(path)
            .unwrap_or_else(|e| panic!("reading {path} for the RSC scan: {e}"));
        for needle in FORBIDDEN {
            assert!(
                !src.contains(needle),
                "{needle:?} found in {path}; this scan forbids it",
            );
        }
    }
}