<?php

declare(strict_types=1);

/** Read-only SMS checks; --gateway queries the account quota without sending a message. */
require dirname(__DIR__) . '/vendor/autoload.php';
\Dotenv\Dotenv::createUnsafeMutable(dirname(__DIR__))->load();
\support\App::loadAllConfig(['route']);

use app\miniapi\auth\SmsCode;
use app\miniapi\model\MiniSmsCode;
use app\miniapi\model\MiniUser;

$endpoint = (string) config('mini_api.sms_endpoint', '');
$host = parse_url($endpoint, PHP_URL_HOST);
$signature = trim((string) config('mini_api.sms_signature', ''));
$checks = [
    'curl' => extension_loaded('curl'),
    'mbstring' => extension_loaded('mbstring'),
    'pdo_mysql' => extension_loaded('pdo_mysql'),
    'sms_enabled_with_credentials' => SmsCode::enabled(),
    'signature_configured' => $signature !== '',
    'https_endpoint' => parse_url($endpoint, PHP_URL_SCHEME) === 'https'
        && in_array($host, ['api.smsbao.com', 'www.smsbao.com'], true)
        && parse_url($endpoint, PHP_URL_PATH) === '/sms'
        && parse_url($endpoint, PHP_URL_QUERY) === null,
];
$report = [
    'php_binary' => PHP_BINARY,
    'php_ini' => php_ini_loaded_file(),
    'additional_ini' => php_ini_scanned_files() ?: null,
    'curl_cainfo' => ini_get('curl.cainfo') ?: null,
    'openssl_cafile' => ini_get('openssl.cafile') ?: null,
    'sms_host' => $host,
    'signature' => $signature !== '' ? $signature : null,
];

foreach ([
    'mini_user_phone_schema' => [new MiniUser(), ['id', 'phone', 'status']],
    'sms_code_schema' => [new MiniSmsCode(), ['id', 'phone', 'purpose', 'code_hash', 'attempts', 'expires_at', 'consumed_at', 'request_ip', 'created_at']],
] as $name => [$model, $columns]) {
    try {
        $model->newQuery()->select($columns)->limit(1)->get();
        $checks[$name] = true;
    } catch (\Throwable $exception) {
        $checks[$name] = false;
        $report['database_errors'][$name] = [
            'type' => get_class($exception),
            'code' => $exception->getCode(),
        ];
    }
}

if (in_array('--gateway', $argv, true)) {
    if (!$checks['curl'] || !$checks['sms_enabled_with_credentials'] || !$checks['https_endpoint']) {
        $checks['gateway'] = false;
        $report['gateway'] = ['skipped' => 'Fix the extension, account or endpoint checks first.'];
    } else {
        $username = (string) config('mini_api.sms_user', '');
        $credential = (string) config('mini_api.sms_password', '');
        $url = 'https://' . $host . '/query?' . http_build_query(['u' => $username, 'p' => $credential]);
        $curl = curl_init($url);
        curl_setopt_array($curl, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_CONNECTTIMEOUT => 5,
            CURLOPT_TIMEOUT => 10,
            CURLOPT_SSL_VERIFYPEER => true,
            CURLOPT_SSL_VERIFYHOST => 2,
            CURLOPT_FOLLOWLOCATION => false,
        ]);
        $raw = curl_exec($curl);
        $httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        $errorNumber = curl_errno($curl);
        $error = curl_error($curl);
        curl_close($curl);
        $lines = $raw === false ? [] : preg_split('/\r?\n/', trim($raw));
        $status = $lines[0] ?? '';
        $checks['gateway'] = $httpStatus === 200 && $status === '0';
        $report['gateway'] = [
            'http_status' => $httpStatus,
            'curl_errno' => $errorNumber,
            'provider_status' => preg_match('/^-?\d+$/D', $status) ? $status : null,
        ];
        if ($error !== '') {
            $report['gateway']['transport_error'] = str_replace(
                [$url, rawurlencode($credential), $credential, $username],
                '[redacted]',
                $error
            );
        }
        if ($checks['gateway'] && preg_match('/^\d+,\d+$/D', $lines[1] ?? '')) {
            [$sent, $remaining] = explode(',', $lines[1]);
            $report['gateway']['remaining_sms'] = (int) $remaining;
        }
    }
}

$report['checks'] = $checks;
$report['ok'] = !in_array(false, $checks, true);
echo json_encode($report, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . PHP_EOL;
exit($report['ok'] ? 0 : 1);