<?php

declare(strict_types=1);

use App\Framework\MagicLinks\MagicLinkToken;

describe('MagicLinkToken Value Object', function () {
    it('creates valid token', function () {
        $token = new MagicLinkToken('abcdefghijklmnopqrstuvwxyz123456');

        expect($token->value)->toBe('abcdefghijklmnopqrstuvwxyz123456');
        expect((string) $token)->toBe('abcdefghijklmnopqrstuvwxyz123456');
    });

    it('requires at least 16 characters', function () {
        expect(fn() => new MagicLinkToken('short'))
            ->toThrow(\InvalidArgumentException::class, 'Token must be at least 16 characters long');
    });

    it('accepts exactly 16 characters', function () {
        $token = new MagicLinkToken('1234567890123456');

        expect($token->value)->toBe('1234567890123456');
    });

    it('accepts more than 16 characters', function () {
        $longToken = str_repeat('a', 64);
        $token = new MagicLinkToken($longToken);

        expect($token->value)->toBe($longToken);
    });

    it('rejects empty string', function () {
        expect(fn() => new MagicLinkToken(''))
            ->toThrow(\InvalidArgumentException::class, 'Token value cannot be empty');
    });

    it('compares tokens correctly', function () {
        $token1 = new MagicLinkToken('abcdefghijklmnop');
        $token2 = new MagicLinkToken('abcdefghijklmnop');
        $token3 = new MagicLinkToken('different-token-');

        expect($token1->equals($token2))->toBeTrue();
        expect($token1->equals($token3))->toBeFalse();
    });

    it('uses constant-time comparison', function () {
        $token1 = new MagicLinkToken('1234567890123456');
        $token2 = new MagicLinkToken('1234567890123456');

        // hash_equals is used internally, which is timing-safe
        expect($token1->equals($token2))->toBeTrue();
    });

    it('converts to string', function () {
        $tokenValue = 'test-token-value-123';
        $token = new MagicLinkToken($tokenValue);

        expect($token->__toString())->toBe($tokenValue);
        expect((string) $token)->toBe($tokenValue);
    });
});