<?php
namespace MBSocial;
defined('ABSPATH') or die('No direct access permitted');

use \MaxButtons\MaxUtils as MaxUtils;

abstract class mbNetwork
{

	protected $network; // internal name of network
	protected $priority = 'unselected'; // Default priority of network - selected / unselected / readmore / hidden

	//protected $api_url;  // URL of API to request information
	protected $countable = false;  // If network supports count of likes / shares / favs
	protected $count_api = '';   // API URL for requesting counts
	protected $count_check_time = 14400; // (PHP 5.3)  4 * HOUR_IN_SECONDS;  // Transient time, how often to check network for new counts
	protected $share_url;  // URL to link to when sharing something
	protected $popup = true;  // Open in Popup or not
	protected $popup_dimensions = array(400,300);  // Default popup dimensions
	protected $return_var;  // Count API return var ( JSON format )

	protected $displayMobile = true;
	protected $displayDesktop = true;

	protected $nice_name;

	protected $label;

	protected $icon_type = 'fa';
	protected $icon = 'fa-circle';

	abstract public function __construct();


	public function get($name)
	{
		if (isset($this->$name))
			return $this->$name;
		else
			return null;

	}

	public function forMobile()
	{
		return $this->displayMobile;
	}

	public function forDesktop()
	{
		return $this->displayDesktop;
	}

	public function isCountable()
	{
 		return $this->countable;
	}

	public function get_nice_name()
	{
		if (isset($this->nice_name))
			return $this->nice_name;
		else
			return ucfirst($this->network);

	}

	public function getRemoteShareCount($share_url)
	{
		if (! $this->countable)
			return false;

		$count_api = $this->count_api;

 		if ($count_api == '') return false; // no api

		$network = $this->network;
		$timeout = 60; // prevent the same requests from running multiple times ( i.e. one page, many collections on same url ) .
		$locked = maxUtils::get_transient('shares-' . $network . '-' . $share_url. '-lock');

		if ($locked == true)
			return 'locked';  // try again on next refresh.

		//lock out next request while this one is still running.
		maxUtils::set_transient('shares-' . $network . '-' . $share_url . '-lock', true, $timeout );

 		$count_api = str_replace("{url}", $share_url, $count_api);

 		$count = $this->remoteRequest($count_api);

 		if (defined('MAXBUTTONS_DEBUG') && MAXBUTTONS_DEBUG)
 		{
 			$admin = MB()->getClass("admin");
 			$admin->log("Get Remote Share", "Call: $count_api - Network : " . $this->network . " - Count: $count \n ");
 		}

		if ($count !== false)
		{
			$network = $this->network;
			$check_time = $this->count_check_time;

			// set count
			maxUtils::set_transient('shares-' . $network . '-' . $share_url, $count, $check_time );

		}

		// remove lock
		maxUtils::delete_transient('shares-' . $network . '-' . $share_url . '-lock');

 		return $count;
 	}

	protected function remoteRequest($url)
	{
		$response = wp_remote_get($url);
		$result_path = $this->return_var;
 		$result_array = explode("|",$result_path);
 		if (count($result_array) == 0)
 			$result_array = array($result_path);

		if (is_wp_error($response) || $response['response']['code'] != 200) {
			return false;
		}
		else {
			$result = wp_remote_retrieve_body($response);
		}
			$result = json_decode($result, true);


 		foreach($result_array as $result_val)
 		{
			if (isset($result[$result_val]))
	 			$result = $result[$result_val];

 		}
 		if (is_int($result))
 			return $result;

		return 0; // some networks don't return the json return var. Only return false on network errors

	}

	public function getShareCount($args = array())
	{
		if ( $this->count_api == '')
			return 0; // no api - count always zero.

		$defaults = array(
				"url" => "",
				"preview" => false,
				"force_share_update" => false,

		);

		$args = wp_parse_args($args,$defaults);

		$share_url = esc_url($args["url"]);
		$network = $this->network;
		//$count = get_transient('mb-col-' . $network . '-' . $share_url . '-shares');
		$count = maxUtils::get_transient('shares-' . $network . '-' . $share_url);

		if ($args["force_share_update"])
			$count = -1; // force an update

		if ( ($count === false || $count == -1) && ! $args["preview"])
		{	// request from external - this is done via ajax on runtime.
			return false;
		}

		return $count;
	}


	/** Function to display additional network-specific options.
	* @return String Option Output.
	**/
	public function admin() {
		return '';

	}


}