<?php

use App\Models\Eleve;

function politique($reponse): array
{
    return collect(explode(';', $reponse->headers->get('Content-Security-Policy')))
        ->mapWithKeys(function (string $d) {
            $morceaux = preg_split('/\s+/', trim($d), 2);

            return [$morceaux[0] => $morceaux[1] ?? ''];
        })->all();
}

test("les pages de l'application ont une CSP stricte : pas de script en ligne sans le nonce", function () {
    $eleve = Eleve::factory()->create();
    $jeton = $eleve->demarreNouvelleSession();

    $reponse = $this->withSession(['jeton_session_eleve' => $jeton])->actingAs($eleve, 'eleve')->get(route('eleve'));
    $csp = politique($reponse);

    expect($csp['script-src'])->toMatch("/^'self' 'nonce-[A-Za-z0-9+\\/=]+'$/")
        ->and($csp['script-src'])->not->toContain('unsafe-inline')
        ->and($csp['object-src'])->toBe("'none'")
        ->and($csp['frame-ancestors'])->toBe("'none'");
});

test('la page de connexion est stricte aussi, la vitrine tolère les scripts en ligne', function () {
    expect(politique($this->get(route('login')))['script-src'])->not->toContain('unsafe-inline')
        ->and(politique($this->get(route('accueil')))['script-src'])->toContain("'unsafe-inline'");
});

test("chaque script de la page d'inscription porte le nonce de l'en-tête", function () {
    $reponse = $this->get(route('register'));
    preg_match("/'nonce-([^']+)'/", $reponse->headers->get('Content-Security-Policy'), $m);

    preg_match_all('/<script\b[^>]*>/', $reponse->getContent(), $scripts);
    expect($scripts[0])->not->toBeEmpty();
    foreach ($scripts[0] as $balise) {
        expect($balise)->toContain("nonce=\"{$m[1]}\"");
    }
});

test('le rapport de violation est accepté sans jeton CSRF', function () {
    $this->call('POST', route('csp.rapport'), [], [], [], ['CONTENT_TYPE' => 'application/csp-report'],
        json_encode(['csp-report' => ['document-uri' => 'https://syllabuslab.fr/eleve?x=1', 'violated-directive' => 'script-src', 'blocked-uri' => 'inline']]))
        ->assertNoContent();
});