<?php
declare(strict_types=1);

header('Content-Type: application/json; charset=utf-8');
header('Cache-Control: no-store');

require __DIR__ . '/im_web_bootstrap.php';

$defaultName = 'Web IM';
$defaultLogo = '/img/logo.png';

try {
    $statement = imAppDb()->prepare(
        'select `conf_name`, `conf_value`, `updated_at` from `system_conf` where `conf_name` in (?, ?)'
    );
    $statement->execute(['PlatformName', 'sys_logo']);

    $config = [];
    $updatedAtValues = [];
    foreach ($statement->fetchAll() as $row) {
        $config[(string)$row['conf_name']] = trim((string)($row['conf_value'] ?? ''));
        $updatedAtValues[] = (string)($row['updated_at'] ?? '');
    }

    $platformName = $config['PlatformName'] ?? '';
    $logo = $config['sys_logo'] ?? '';
    $version = implode('|', array_values(array_filter($updatedAtValues ?? [])));

    respond(0, 'success', [
        'platformName' => $platformName !== '' ? $platformName : $defaultName,
        'logo' => $logo !== '' ? $logo : $defaultLogo,
        'version' => $version,
    ]);
} catch (Throwable $error) {
    respond(500, $error->getMessage() ?: '平台配置加载失败', [
        'platformName' => $defaultName,
        'logo' => $defaultLogo,
    ]);
}