<?php

use App\Support\Baselines\BaselineEvidenceResumeToken;

it('encodes and decodes resume token state deterministically', function (): void {
    $state = [
        'offset' => 12,
        'note' => 'opaque to callers',
    ];

    $token = BaselineEvidenceResumeToken::encode($state);

    expect($token)->toBeString();
    expect($token)->not->toContain('+');
    expect($token)->not->toContain('/');
    expect($token)->not->toContain('=');

    $decoded = BaselineEvidenceResumeToken::decode($token);

    expect($decoded)->toBe($state);
});

it('returns null for invalid resume tokens', function (): void {
    expect(BaselineEvidenceResumeToken::decode(''))->toBeNull();
    expect(BaselineEvidenceResumeToken::decode('not-base64url'))->toBeNull();

    $payload = json_encode(['v' => 999, 'state' => ['offset' => 1]], JSON_THROW_ON_ERROR);
    $token = rtrim(strtr(base64_encode($payload), '+/', '-_'), '=');

    expect(BaselineEvidenceResumeToken::decode($token))->toBeNull();
});