<?php 
/**
* @author Waseem Senjer
* 
*/
class WPRuby_Licence_Handler
{

	public $page = '';
	public $section = '';
	public $redirect_url = '';
	public $return_url = '';
	public $plugin_name = '';
	public $store_url = 'https://wpruby.com';

	public function __construct($licence_option_key)
	{
		$this->licence_option_key = $licence_option_key;
		add_action('admin_init',array($this,'redirect_if_not_active'));
		add_action('admin_menu', array($this,'register_activation_page'));

	}

	public function redirect_if_not_active($value='')
	{
		if(isset($_GET['page'])){
			if($_GET['page'] == $this->page && isset($_GET['section']) && $_GET['section'] == $this->section){
				if(get_option($this->licence_option_key)=='' || get_option($this->licence_option_key .'_license_status')!='valid'){
					wp_redirect($this->redirect_url);
					exit;
				}
			}
		}
	}

	public function register_activation_page($value='')
	{
		$license_page_slug = str_replace(' ', '-', strtolower($this->plugin_name)). '-activation';	   
		
		add_submenu_page( 
		          null   //or 'options.php' 
		        , $this->plugin_name . ' Activation' 
		        , $this->plugin_name . ' Activation'
		        , 'manage_options'
		        , $license_page_slug
		        , array($this,'activation_page_callback')
		    );
		add_action( 'admin_init', array($this,'register_activation_settings') );

	}



	public function register_activation_settings(){
		register_setting( 'wpruby-settings-group', $this->licence_option_key);
	}

	public function setPage($page='')
	{
		$this->page = $page;
	}

	public function setSection($section='')
	{
		$this->section = $section;
	}
	public function setPluginName($plugin_name='')
	{
		$this->plugin_name = $plugin_name;
		$this->redirect_url = admin_url('admin.php?page=' . str_replace(' ', '-', strtolower($this->plugin_name)). '-activation' );
	}
	public function setReturnUrl($return_url='')
	{
		$this->return_url = $return_url;
	}
	public function verify_key(){
		$license = esc_attr( get_option( $this->licence_option_key ) );
			
		// data to send in our API request
		$api_params = array( 
			'edd_action'=> 'activate_license', 
			'license' 	=> $license, 
			'item_name' => urlencode( $this->plugin_name ), // the name of our product in EDD,
			'url'       => home_url()
		);
		
		// Call the custom API.
		$response = wp_remote_post( $this->store_url, array(
			'timeout'   => 15,
			'sslverify' => false,
			'body'      => $api_params
		) );
		// make sure the response came back okay
		if ( is_wp_error( $response ) )
			return false;
		// decode the license data
		$license_data = json_decode( wp_remote_retrieve_body( $response ) );
		// $license_data->license will be either "active" or "inactive"
		update_option( $this->licence_option_key .'_license_status', $license_data->license );
		if($license_data->license == 'valid'){
			echo '<div id="message" class="updated fade"><p><strong>' . 'The plugin has been activated, Thank you :) <br>You can return to the <a href="'. $this->return_url .'">'.$this->plugin_name.' Settings</a>' . '</strong></p></div>';
		}else{
			echo '<div id="message" class="error fade"><p><strong>' . 'Your licence Key is not valid. If there is any problem, please contact the <a href="https://wpruby.com/submit-ticket/">WPRuby support</a>.' . '</strong></p></div>';
		}
	}
	public function activation_page_callback(){
		?>
			<div class="wrap columns-2">
				<h2><?php echo $this->plugin_name; ?> Activation</h2>
				<div id="poststuff">
				<div id="post-body" class="metabox-holder columns-2">
				<div id="post-body-content">
					<div class="postbox">
					<h3 class="hndle">Licence Activation</h3>
						<div class="inside">
							<form method="post" id="mainform" action="options.php"> 
							<?php if(isset($_GET['settings-updated']) && $_GET['settings-updated']==true){
									$this->verify_key();
							} ?>
							 	<?php settings_fields( 'wpruby-settings-group' ); ?>
								<table class="form-table">
									<tbody>
									<tr>
										<td valign="top" style="width:150px;">Licence Key</td>
										<td valign="top">
											<fieldset>
												<input class="input-text regular-input" name="<?php echo $this->licence_option_key; ?>" type="text" autocomplete="off" style="width:350px;" value="<?php echo esc_attr( get_option($this->licence_option_key) ); ?>">
												<p class="description">If you purchased the plugin, you'll find the key in the confirmation email, If you lost it, you can <a href="https://wpruby.com/checkout/purchase-history/">restore your license keys</a>.</p>
											</fieldset>
										</td>
									</tr>
									</tbody>
								</table>
								<?php submit_button(); ?>
							</form>
						</div>
					</div>
				</div>
				<div id="postbox-container-1" class="postbox-container">
                        <div id="side-sortables" class="meta-box-sortables ui-sortable"> 
                            <div class="postbox ">
                                <div class="handlediv" title="Click to toggle"><br></div>
                                <h3 class="hndle"><span><i class="fa fa-question-circle"></i>&nbsp;&nbsp;Plugin Support</span></h3>
                                <div class="inside">
                                    <div class="support-widget">
                                        <p>
                                        <img style="width:100%;" src="https://wpruby.com/wp-content/uploads/2016/03/wpruby_logo_with_ruby_color-300x88.png">
                                        <br/>
                                        Got a Question, Idea, Problem or Praise?</p>
                                        <ul>
                                            <li>» <a href="https://wpruby.com/submit-ticket/" target="_blank">Support Request</a></li>
                                            <li>» <a href="https://wpruby.com/knowledgebase_category/<?php echo str_replace(' ', '-', strtolower($this->plugin_name)); ?>/" target="_blank">Documentation and Common issues.</a></li>
                                            <li>» <a href="https://wpruby.com/plugins/" target="_blank">Our Plugins Shop</a></li>
                                        </ul>

                                    </div>
                                </div>
                            </div>

                            <div class="postbox rss-postbox">
    							<div class="handlediv" title="Click to toggle"><br></div>
    								<h3 class="hndle"><span><i class="fa fa-wordpress"></i>&nbsp;&nbsp;WPRuby Blog</span></h3>
    								<div class="inside">
										<div class="rss-widget">
											<?php
    											wp_widget_rss_output(array(
    													'url' => 'https://wpruby.com/feed/',
    													'title' => 'WPRuby Blog',
    													'items' => 3,
    													'show_summary' => 0,
    													'show_author' => 0,
    													'show_date' => 1,
    											));
    										?>
    									</div>
    								</div>
    						</div>

                        </div>
                    </div>
                    </div>
				</div>

			</div>
		<?php
	}
}