Feature/first release

Oprócz zmiany namespace dodana klasa ApiClientOptions i małe testy.

src/Authentication/JWTSaasToken.php

+<?php
+
+namespace WPDesk\ApiClient\Authentication;
+
+class JWTSaasToken implements Token
+{
+    const SHOP_ID_PARAM = 'shop';
+
+    const ROLE_PARAM = 'ROLE_SHOP';
+
+
+    /** @var JWTToken */
+    private $token;
+
+    /**
+     * JWTToken constructor.
+     * @param string $token
+     */
+    public function __construct(JWTToken $token)
+    {
+        $this->token = $token;
+    }
+
+    public function getAuthString()
+    {
+        return $this->token->getAuthString();
+    }
+
+    public function isExpired()
+    {
+        return $this->token->isExpired();
+    }
+
+    public function isSignatureValid()
+    {
+        return $this->token->isSignatureValid();
+    }
+
+    public function __toString()
+    {
+        return $this->token->__toString();
+    }
+
+    /**
+     * If there is shop id in the token
+     *
+     * @return bool
+     */
+    public function hasShopId()
+    {
+        $info = $this->token->getDecodedPublicTokenInfo();
+        return !empty($info[self::SHOP_ID_PARAM]) && in_array(self::ROLE_PARAM, $info['roles']);
+    }
+
+    /**
+     * Get shop id from token
+     *
+     * @return int
+     */
+    public function getShopId()
+    {
+        $info = $this->token->getDecodedPublicTokenInfo();
+        return (int)$info[self::SHOP_ID_PARAM];
+    }
+
+}
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