<?php
declare(strict_types=1);

$pluginDir = dirname(__DIR__);
require_once $pluginDir . '/exec/lib/Settings.php';
require_once $pluginDir . '/exec/lib/MySQLService.php';

function fail(string $message): void
{
    fwrite(STDERR, "FAIL: {$message}\n");
    exit(1);
}

function assert_true(bool $condition, string $message): void
{
    if (!$condition) {
        fail($message);
    }
}

$logPath = tempnam(sys_get_temp_dir(), 'altmysql-error-log-');
if ($logPath === false) {
    fail('cannot create temp log file');
}
ini_set('log_errors', '1');
ini_set('error_log', $logPath);

$settingsPath = tempnam(sys_get_temp_dir(), 'altmysql-settings-');
file_put_contents($settingsPath, '');
$settings = Settings::load($settingsPath);
unlink($settingsPath);

$mysql = new MySQLService([
    'host' => '127.0.0.1',
    'port' => 1,
    'database' => 'mysql',
    'user' => 'nobody',
    'password' => 'nopassword',
    'socket' => '',
], $settings);

$threw = false;
try {
    $mysql->serverVersion();
} catch (Throwable $e) {
    $threw = true;
}
assert_true($threw, 'connecting to a closed port must still raise an exception');

$logContents = (string)file_get_contents($logPath);
assert_true(
    str_contains($logContents, 'MYSQL_CONNECT_FAIL'),
    'a failed MySQL connection must be logged for diagnosis (expected MYSQL_CONNECT_FAIL marker in error log, got: ' . $logContents . ')'
);
assert_true(
    str_contains($logContents, '127.0.0.1'),
    'the connect-failure log line must include the target host for diagnosis'
);

unlink($logPath);

echo "mysql_connect_failure_test: OK\n";