EvilFreelancer/rezdy-api-php

<?php

namespace Rezdy;

use BadMethodCallException;
use ErrorException;
use GuzzleHttp\Exception\ClientException;

// Root query
use Rezdy\Interfaces\QueryInterface;

// Availability
use Rezdy\Interfaces\AvailabilityInterface as Availability;

// Products
use Rezdy\Interfaces\ProductsInterface as Products;
use Rezdy\Interfaces\ProductInterface as Product;

/**
 * @property Products     $products      Products management
 * @property Availability $availability  Availability of products
 *
 * @method Product product(string $productCode)
 *
 * Single entry point for all classes
 *
 * @package Rezdy
 */
class Client implements QueryInterface
{
    use HttpTrait;

    /**
     * @var string
     */
    protected $namespace = __NAMESPACE__ . '\\Endpoints';

    /**
     * Type of query
     *
     * @var string
     */
    protected $type;

    /**
     * Endpoint of query
     *
     * @var string
     */
    protected $endpoint;

    /**
     * Parameters of query
     *
     * @var mixed
     */
    protected $params;

    /**
     * @var array
     */
    protected static $variables = [];

    /**
     * API constructor.
     *
     * @param string|array|Config $config
     *
     * @throws \ErrorException
     */
    public function __construct($config)
    {
        // If string then it's a token
        if (is_string($config)) {
            $config = new Config(['api_key' => $config]);
        }

        // If array then need create object
        if (is_array($config)) {
            $config = new Config($config);
        }

        // Save config into local variable
        $this->config = $config;

        // Store the client object
        $this->client = new \GuzzleHttp\Client($config->guzzle());
    }

    /**
     * Convert underscore_strings to camelCase (medial capitals).
     *
     * @param string $str
     *
     * @return string
     */
    private function snakeToPascal(string $str): string
    {
        // Remove underscores, capitalize words
        return str_replace(' ', '', ucwords(str_replace('_', ' ', $str)));
    }

    /**
     * Magic method required for call of another classes
     *
     * @param string $name
     *
     * @return bool|object
     * @throws \BadMethodCallException
     */
    public function __get(string $name)
    {
        if (isset(self::$variables[$name])) {
            return self::$variables[$name];
        }

        // By default return is empty
        $object = '';

        // Set class name as namespace
        $class = $this->namespace . '\\' . $this->snakeToPascal($name);

        try {

            // Try to create object by name
            $object = new $class($this->config);

        } catch (ErrorException | ClientException $e) {
            echo $e->getMessage();
        }

        // If object is not created
        if (!is_object($object)) {
            throw new BadMethodCallException("Class $class could not to be loaded");
        }

        return $object;
    }

    /**
     * Magic method required for call of another classes
     *
     * @param string $name
     * @param array  $arguments
     *
     * @return bool|object
     * @throws \BadMethodCallException
     */
    public function __call(string $name, array $arguments)
    {
        // By default return is empty
        $object = '';

        // Set class name as namespace
        $class = $this->namespace . '\\' . $this->snakeToPascal($name) . 's';

        try {

            // Try to create object by name
            $object = new $class($this->config);

        } catch (ErrorException | ClientException $e) {
            echo $e->getMessage();
        }

        // If object is not created
        if (!is_object($object)) {
            throw new BadMethodCallException("Class $class could not to be loaded");
        }

        return call_user_func_array($object, $arguments);
    }

    /**
     * Check if class is exist in folder
     *
     * @param string $name
     *
     * @return bool
     */
    public function __isset(string $name): bool
    {
        return isset(self::$variables[$name]);
    }

    /**
     * Ordinary dummy setter, it should be ignored (added to PSR reasons)
     *
     * @param string $name
     * @param mixed  $value
     *
     * @throws \BadMethodCallException
     */
    public function __set(string $name, $value)
    {
        self::$variables[$name] = $value;
    }
}