young-steveo

<?php
if (empty($data["username"])) {
    throw new \Exception("Username is required.");
}
if (empty($data["name"])) {
    $first = $data["first_name"] ?? '';
    $last = $data["last_name"] ?? '';
    $data["name"] = "$first $last";
}
$params = new SearchParams($data['username'], $data['name']);

young-steveo

<?php
final class SearchParams {
    private $username;
    private $name;
    private function __construct(string $username, string $name) {
        $this->username = $username;
        $this->name = $name;
    }
    public static function fromArray(array $params) : SearchParams {
        if (empty($params["username"])) {

young-steveo

<?php
final class User extends Requester { 
    public function search(SearchParams $params) : array {
        return $this->request($params->toArray())->toArray();
    }
}

young-steveo

<?php
final class Payment {
    public function subscribe(array $transaction) : array {
        // 1
        $transaction = [
            'payment_method' => $transaction['payment_method'] ?? 'credit-card',
            'amount' => $transaction['total'] ?? $transaction['subtotal'] ?? 0.0,
            'currency' => $transaction['currency_code'] ?? 'USD'
        ] + $transaction;
        $model = new TransactionModel();

young-steveo

<?php
final class Payment {
    public function subscribe(PostParams $data) : Transaction {
        $transaction = Transaction::fromPost($data);
      
        $model = new TransactionModel();
        $model->create($transaction);
      
        $processor = $model->getProcessor($transaction); // a Processor object