<?php
use Aws\Ssm\SsmClient;

function get_parameters_by_path(SsmClient &$ssm, $parameter_path, $next_token = null)
{
    $params = [
        'Path' => $parameter_path,
        'Recursive' => true,
        'WithDecryption' => true,
        'MaxResults' => 500,
    ];
    if ($next_token) {
        $params['NextToken'] = $next_token;
    }
    return $ssm->getParametersByPath($params);
}

function get_all_parameters()
{
    $parameter_path = getenv('AWS_PARAMETER_PATH');
    if (empty($parameter_path)) {
        return [];
    }
    $ssm = new SsmClient(['region' => getenv('AWS_REGION')]);
    $next_token = null;
    while(true)
    {
        $response = get_parameters_by_path($ssm, $parameter_path, $next_token);
        foreach ($response['Parameters'] as $parameter) {
            yield $parameter['Name'] => $parameter['Value'];
        }
        if (!empty($response['NextToken'])) {
            $next_token = $response['NextToken'];
            continue;
        }
        break;
    }
    return [];
}

foreach (get_all_parameters() as $name => $value) {
    $basename = pathinfo($name, PATHINFO_BASENAME);
    echo "{mb_strtoupper($basename)}=\"${value}\"\n";
}