<?php

use Modules\Payment\Support\KbzSignature;

/**
 * Fixture derived by running bnf_event's own `KBZPay::joinKeyVal`/`signature`
 * (App\Strategies\Payments\KBZPay) against this exact params array and key —
 * this pins the port to the old code's actual behavior (domain.md §6).
 */
$fixtureParams = [
    'timestamp' => '1700000000',
    'method' => 'kbz.payment.precreate',
    'notify_url' => 'https://example.com/api/v1/webhooks/kbz',
    'nonce_str' => 'fixture-nonce',
    'version' => '1.0',
    'biz_content' => [
        'appid' => 'APPID123',
        'merch_code' => 'MERCH001',
        'merch_order_id' => 'EVB-FIXTURE-001',
        'trade_type' => 'MINIAPP',
        'total_amount' => '15000',
        'trans_currency' => 'MMK',
        'callback_info' => 'urlencode',
    ],
];
$fixtureKey = 'test-merchant-key';

test('joinKeyVal flattens nested biz_content and sorts keys, matching the old algorithm', function () use ($fixtureParams) {
    expect(KbzSignature::joinKeyVal($fixtureParams))->toBe(
        'appid=APPID123&callback_info=urlencode&merch_code=MERCH001&merch_order_id=EVB-FIXTURE-001'
        .'&method=kbz.payment.precreate&nonce_str=fixture-nonce&notify_url=https://example.com/api/v1/webhooks/kbz'
        .'&timestamp=1700000000&total_amount=15000&trade_type=MINIAPP&trans_currency=MMK&version=1.0'
    );
});

test('sign matches the known fixture hash produced by the old KBZPay::signature', function () use ($fixtureParams, $fixtureKey) {
    expect(KbzSignature::sign($fixtureParams, $fixtureKey))
        ->toBe('29F95FB3DCCEC866A68A07E9A1B25BEEE9F355529B5D37395A04B2282FC48BB1');
});

test('sign is uppercase SHA-256 and stable for the same input', function () use ($fixtureParams, $fixtureKey) {
    $signature = KbzSignature::sign($fixtureParams, $fixtureKey);

    expect($signature)->toBe(strtoupper($signature))
        ->and($signature)->toHaveLength(64)
        ->and(KbzSignature::sign($fixtureParams, $fixtureKey))->toBe($signature);
});

test('sign and joinKeyVal ignore any pre-existing sign/sign_type values', function () use ($fixtureParams, $fixtureKey) {
    $withStaleSign = [...$fixtureParams, 'sign' => 'stale', 'sign_type' => 'SHA256'];

    expect(KbzSignature::sign($withStaleSign, $fixtureKey))
        ->toBe(KbzSignature::sign($fixtureParams, $fixtureKey));
});

test('joinKeyVal drops null and empty-string values', function () {
    $params = ['a' => 'x', 'b' => null, 'c' => '', 'd' => '   '];

    expect(KbzSignature::joinKeyVal($params))->toBe('a=x');
});