<?php
/*
 * Library for the KeyCDN API
 *
 * @author Tobias Moser
 * @version 0.1
 *
 */

class KeyCDN
{
	public $username;
	public $password;
	public $KeyCDN_api = 'https://www.keycdn.com';

	public function __construct($username, $password)
	{
		$this->username = $username;
		$this->password = $password;
	}

	public function get($selected_call, $params = array())
	{
		return $this->execute($selected_call, 'GET', $params);
	}

	public function post($selected_call, $params = array())
	{
		return $this->execute($selected_call, 'POST', $params);
	}

	public function put($selected_call, $params = array())
	{
		return $this->execute($selected_call, 'PUT', $params);
	}

	public function delete($selected_call, $params = array())
	{
		return $this->execute($selected_call, 'DELETE', $params);
	}

	private function execute($selected_call, $method_type, $params)
	{

		$endpoint = $this->KeyCDN_api . '/' . $selected_call;

		// start with curl and prepare accordingly
		$ch = curl_init();

		// create basic auth information
		curl_setopt($ch, CURLOPT_USERPWD, $this->username . ':' . $this->password);

		// return transfer as string
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

		// Set SSL Verifyer off
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

		// set curl timeout
		curl_setopt($ch, CURLOPT_TIMEOUT, 60);

		// retrieve headers
		curl_setopt($ch, CURLOPT_HEADER, 1);
		curl_setopt($ch, CURLINFO_HEADER_OUT, 1);

		// set request type
		if ($method_type != 'POST' && $method_type != 'GET')
		{
			curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method_type);
		}

		$query_str = http_build_query($params);
		// send query-str within url or in post-fields
		if ($method_type == 'POST' || $method_type == 'PUT' || $method_type == 'DELETE')
		{
			$req_uri = $endpoint;
			curl_setopt($ch, CURLOPT_POSTFIELDS, $query_str);
		}
		else
		{
			$req_uri = $endpoint . '?' . $query_str;
		}

		// url
		curl_setopt($ch, CURLOPT_URL, $req_uri);

		// make the request
		$result = curl_exec($ch);
		$headers = curl_getinfo($ch);
		$curl_error = curl_error($ch);

		curl_close($ch);

		// get json_output out of result (remove headers)
		$json_output = substr($result, $headers['header_size']);

		// error catching
		if (!empty($curl_error) || empty($json_output))
		{
			//throw new Exception('KeyCDN-Error: '.$curl_error.', Output: '.$json_output);
			return 'KeyCDN-Error: ' . $curl_error . ', Output: ' . $json_output;
		}

		return $json_output;

	}

}