/*
catcrafts.net
Copyright (C) 2026 Catcrafts

The source code of this website is made available for viewing purposes only.
No permission is granted to copy, modify, distribute, or create derivative works.
*/

// Status codes, redirects, response headers, and the sitemap/feed documents —
// the things only a real request can show. A real 404 is the whole reason the
// backend exists: a client-side router cannot produce one.

import std;
import Catcrafts.E2eHarness;

using namespace Catcrafts::E2e;

int main(int argc, char** argv) {
    TestServer srv(argv[1], 8210);

    // ── status codes ──────────────────────────────────────────────────
    for (std::string_view p : { "/", "/about", "/shop", "/shop/fp6-pmos",
                                "/shop/fp6plus-pmos", "/shop/donation", "/projects",
                                "/posts", "/demos", "/demos/raytracer", "/financials",
                                "/legal/privacy", "/legal/terms", "/legal/imprint",
                                "/feed.xml", "/sitemap.xml", "/api/healthz" }) {
        srv.CheckStatus(std::string(p), "200");
    }
    // Trailing slashes must normalise, not 404 or duplicate the canonical URL.
    srv.CheckStatus("/projects/", "200");
    srv.CheckStatus("/shop/", "200");
    // A real 404, which a client-side router cannot produce — this is the
    // whole reason the backend exists.
    srv.CheckStatus("/nope", "404");
    srv.CheckStatus("/shop/nope", "404");
    srv.CheckStatus("/legal/nope", "404");
    // A slug that cannot be one of ours is rejected before any lookup.
    srv.CheckStatus("/shop/BAD--slug", "404");
    srv.CheckStatus("/demos/nope", "404");
    // A post slug that parsed but names nothing must be a real 404, or every
    // typo and every retired post becomes an indexable empty page.
    srv.CheckStatus("/posts/nope", "404");
    srv.CheckStatus("/posts/BAD--slug", "404");
    // The retired blog URLs are still in the wild; they must redirect, not 404.
    srv.CheckStatus("/blog", "301");
    srv.CheckStatus("/blog/hello-world", "301");
    // /demo was the single-demo URL before there was a list; it must redirect,
    // not 404, because it was linked from the home page.
    srv.CheckStatus("/demo", "301");

    // ── redirects ─────────────────────────────────────────────────────
    {
        const auto blog = srv.Get("/blog/hello-world");
        const auto it = blog.headers.find("location");
        Check(it != blog.headers.end() && it->second.starts_with("/posts"),
              "/blog/* sends Location: /posts",
              it == blog.headers.end() ? "no location header" : it->second);
    }
    {
        const auto demo = srv.Get("/demo");
        const auto it = demo.headers.find("location");
        Check(it != demo.headers.end() && it->second.starts_with("/demos"),
              "/demo sends Location: /demos",
              it == demo.headers.end() ? "no location header" : it->second);
    }

    // ── headers ───────────────────────────────────────────────────────
    srv.HeaderHas("/", "x-content-type-options", "nosniff", "nosniff on pages");
    srv.HeaderHas("/", "cache-control", "public", "pages are cacheable");
    srv.HeaderHas("/nope", "x-robots-tag", "noindex", "404 is noindex");
    srv.HeaderHas("/feed.xml", "content-type", "application/atom", "feed content-type");
    srv.HeaderHas("/sitemap.xml", "content-type", "application/xml", "sitemap content-type");

    // ── sitemap and feed content ──────────────────────────────────────
    srv.BodyHas("/sitemap.xml", "/shop/fp6-pmos", "sitemap lists the product");
    srv.BodyHas("/sitemap.xml", "/shop/fp6plus-pmos",
                "sitemap lists the refresh — it comes off the catalogue, not a second list");
    srv.BodyHas("/sitemap.xml", "/about", "sitemap lists the about page");
    srv.BodyHas("/sitemap.xml", "/legal/privacy", "sitemap lists the privacy page");
    srv.BodyHas("/sitemap.xml", "/demos", "sitemap lists the demos page");
    srv.BodyHas("/sitemap.xml", "/financials", "sitemap lists the financials page");
    srv.BodyLacks("/sitemap.xml", "/blog", "sitemap does not advertise the redirect");
    srv.BodyLacks("/sitemap.xml", "/order", "sitemap does not advertise order pages");
    srv.BodyHas("/feed.xml", "<feed xmlns=\"http://www.w3.org/2005/Atom\">", "feed is Atom");

    // ── abuse ─────────────────────────────────────────────────────────
    srv.CheckStatus("/shop/fp6-pmos", "413", "POST",
                    "email=a%40b.example&name=" + std::string(20000, 'x')
                        + "&street=x&postal=1&city=y&country=NL");
    {
        const auto json = srv.Post("/shop/fp6-pmos", "{}", "application/json");
        Check(json.status == "415", "POST with a JSON content-type -> 415", json.status);
    }
    srv.CheckStatus("/shop/nope", "404", "POST",
                    "email=a%40b.example&name=Ada&street=x&postal=1&city=y&country=NL");
    srv.CheckStatus("/projects", "405", "POST", "x=1");
    // HEAD must not be a 500 or a body — some crawlers use it exclusively.
    srv.CheckStatus("/", "200", "HEAD");
    {
        const auto head = srv.Head("/");
        Check(head.body.empty(), "HEAD carries no body");
    }

    return Finish();
}