<?php 
/** 
 * Admin panel widget configuration
 */
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly   
if ( ! class_exists( 'archivesPostTabWidget_Admin' ) ) { 
	class archivesPostTabWidget_Admin extends archivesPostTabLib {    
 
	   /**
		* Update the widget settings.
		* 
		* @access  private
		* @since   1.0
		*
		* @param   array  $new_instance  Set of POST form values
		* @param   array  $old_instance  Set of old form values
		* @return  array Sanitize form data 
		*/ 
		function update( $new_instance, $old_instance ) { 
		
			foreach( $new_instance as $_key => $_value ) {
				 $new_instance[$_key] = sanitize_text_field( $new_instance[$_key] );   
			}   
			
			return $new_instance;
		
		} 
 
	   /**
		* Displays the widget settings controls on the widget panel.  
		*
		* @access  private
		* @since   1.0
		*
		* @param   array  $instance  Set of form values
		* @return  void
		*/
		function form( $instance ) { 
		 
			$instance = wp_parse_args( $instance, $this->_config );   
			
			// Filter values
			foreach( $instance as $_key => $_value ) {
				$instance[$_key]  = htmlspecialchars( $instance[$_key], ENT_QUOTES ); 
			}  	
			
			require( $this->getArchivesPostTabTemplate( 'admin_widget_settings.php' ) );
		
		}

 
	   /**
		* Show the list panel
		*
		* @access  private
		* @since   1.0
		*
		* @param   array  $args  Set of configuration values
		* @param   array  $instance  Set of configuration values
		* @return  void	  Displays widget html
		*/
		function widget( $args, $instance ) {
		
			// Filter values
			foreach( $instance as $_key => $_value ) {
				$instance[$_key]  = htmlspecialchars( $instance[$_key], ENT_QUOTES ); 
			}  
			
			$this->_config = $instance; 
			
			// Load Layout
			require( $this->getArchivesPostTabTemplate( 'template_'.$this->_config["template"].'.php' ) );
			
		}
		
	}

}

/** 
 * Admin panel license configuration
 */
if ( ! class_exists( 'archivesPostTabLicenseConfig_Admin' ) ) {
	
	class archivesPostTabLicenseConfig_Admin {
	
		/**
		 * PHP5 constructor method.
		 *
		 * Register config menu and manage received data.
		 * 
		 * @access    public
		 * @since     1.0
		 *
		 * @return    void
		 */
		public function __construct() {
				
			add_action( 'admin_init', array( $this,'archivesposttab_manage_license' ) ); 
			add_action( 'admin_menu', array( $this,'avptab_add_plugin_admin_menu' )  );  	
				
		}		
		
		/**
		 * Activate or deactivate plugin using license key.
		 * 
		 * @access    public
		 * @since     1.0
		 *
		 * @return    void
		 */
		public function archivesposttab_manage_license() {

			if( isset( $_POST['btnAct'] ) && trim($_POST['btnAct']) != "" &&  isset( $_GET["page"] ) && trim( $_GET["page"] ) == "archivesposttab_settings" ){
			
				if( ! check_admin_referer( 'archivesposttab_nonce', 'archivesposttab_nonce' ) ) 	
					return; 
				
				$act_key = trim( $_POST['archivesposttab_license_key'] ); 
				
				if( $act_key == "" ) {
					
					wp_redirect(site_url()."/wp-admin/options-general.php?page=archivesposttab_settings&st=11");
					die();
					
				}
				
				$api_params = array( 
					'action'=> 'activate_license', 
					'license' 	=> $act_key, 
					'item_name' => 'wp_archivesposttab', 
					'url'       => home_url()
				);
				
				$response = wp_remote_get( add_query_arg( $api_params, archivesposttab_license_url ), array( 'timeout' => 15, 'sslverify' => false ) );
				
				if ( is_wp_error( $response ) )
					wp_redirect( site_url()."/wp-admin/options-general.php?page=archivesposttab_settings&st=10" );
					 
				$license_data = json_decode( wp_remote_retrieve_body( $response ) );
				 
				update_option( 'archivesposttab_license_status', $license_data->license_status );
				update_option( 'archivesposttab_license_key', $license_data->license_key );
				update_option( 'archivesposttab_license_reff', $license_data->license_reff );				
				 
				wp_redirect( site_url()."/wp-admin/options-general.php?page=archivesposttab_settings&st=".$license_data->st );
				die();				 
				
			}
			 
			
			if( isset( $_POST['btnDeact'] ) && trim($_POST['btnDeact']) != ""  &&  isset( $_GET["page"] ) && trim( $_GET["page"] ) == "archivesposttab_settings" ) {
				
				if( ! check_admin_referer( 'archivesposttab_nonce', 'archivesposttab_nonce' ) ) 	
					return; 
				
				$license = trim( get_option( 'archivesposttab_license_key' ) );
				  
				$api_params = array( 
					'action'=> 'deactivate_license', 
					'license' 	=> $license, 
					'item_name' => 'wp_archivesposttab', 
					'url'       => home_url()
				);
				
				$response = wp_remote_get( add_query_arg( $api_params, archivesposttab_license_url ), array( 'timeout' => 15, 'sslverify' => false ) );
				if ( is_wp_error( $response ) )
					wp_redirect(site_url()."/wp-admin/options-general.php?page=archivesposttab_settings&st=10");
				
				$license_data = json_decode( wp_remote_retrieve_body( $response ) );
				
				delete_option( 'archivesposttab_license_status' );
				delete_option( 'archivesposttab_license_key' );
				delete_option( 'archivesposttab_license_reff' );
				 
				wp_redirect(site_url()."/wp-admin/options-general.php?page=archivesposttab_settings&st=".$license_data->st);
				die();	
			}
			
		}


		/**
		 * View fields form to activate or deactivate plugin using license key and display the activation status of plugin.
		 * 
		 * @access    public
		 * @since     1.0
		 *
		 * @return    void
		 */		
		public function avptab_display_plugin_settings_admin_page() {
			
			$license 	= get_option( 'archivesposttab_license_key' );
			$status 	= get_option( 'archivesposttab_license_status' );
			
			$_message = "";
			if( isset( $_REQUEST["st"] ) && trim( $_REQUEST["st"] ) != "" ) { 
			
			
				$_st = trim($_REQUEST["st"]);
				if( $_st == '1' ) {
					$_message = __( 'License key has been activated.', 'archivesposttab');
						
				} else if( $_st == '2' ) {
					$_message = __( 'Already plugin activated. Please deactivate from all of your sites before activating it.', 'archivesposttab');	
						
				} else if( $_st == '3' ) {
					$_message = __( 'Your site url is not registered from ikhodal.com or invalid license key, Please add your site url and get license key from ikhodal.com account if you have already purchased Archive Posts Tab plugin for wordpress.', 'archivesposttab');	
						
				} else if( $_st == '4' ) {
					$_message = __( 'License key has been deactivated.', 'archivesposttab');
						
				} else if( $_st == '5' ) {
					$_message = __( "Invalid license key. Please get valid licence key from ikhodal.com account. If you have already purchased 'Archive Posts Tab' plugin for wordpress.", 'archivesposttab');
						
				} else if( $_st == '10' ) {
					$_message = __( 'Please try again after some time.', 'archivesposttab');
						
				} else if( $_st == '11' ) {
					$_message = __( 'Please enter valid license key.', 'archivesposttab');
						
				}  
				
			}
			
			?> 
				<div  class="wrap">
					 
					<h2 class="hndle ui-sortable-handle"><span><?php echo esc_html( get_admin_page_title() ); ?></span></h2> 
					
					<p><?php _e( "Activate/Deactivate 'Archive Posts Tab' plugin using provided license key.", 'archivesposttab' ); ?></p>
					
					<?php
						if( $_message != "" ) {
							?>
								<div class=" notice <?php echo (($_st==1)?"updated":"error"); ?> ">
									<p><?php echo $_message; ?></p>
								</div>
							<?php
						}
					?>	
					 
					<form method="post" action="<?php echo site_url(); ?>/wp-admin/options-general.php?page=archivesposttab_settings"> 
						
						<table style="width:100%" id="wp_archivesposttab_fields" class="archivesposttab-admin postbox">
							<tbody>
								<?php if(!( $status !== false && $status == 'valid' )){ ?>
								<tr valign="top">	
									<td  class="tp-label" align="right" valign="top">
										<p><?php _e( 'License Key', 'archivesposttab' ); ?></p>
									</td>
									<td>
										<p><input id="archivesposttab_license_key" name="archivesposttab_license_key" type="text" class="regular-text" value="<?php  echo $license; ?>" />
										<br /> <i><?php _e('Please enter valid license key.', 'archivesposttab'); ?></i></p>
									</td>
								</tr> 
								<?php } ?>
								<tr valign="top">	
									<td  class="tp-label" align="right" valign="top">
										<p><?php _e('Current License Status', 'archivesposttab'); ?></p>
									</td>
									<td>
										<p><strong><?php echo ( !( $status !== false && $status == 'valid' )?__( 'Deactivated', 'archivesposttab' ) : __( 'Activated', 'archivesposttab' ) ); ?></strong></p> 
									</td>
								</tr> 
								<tr valign="top">	
									<td><p>&nbsp;</p></td>
									<td>
										<p><?php wp_nonce_field( 'archivesposttab_nonce', 'archivesposttab_nonce' ); ?> 
										<?php if(!( $status !== false && $status == 'valid' )){ ?>
										<input type="submit" name="btnAct" id="btnAct" class="button button-primary" value="<?php _e( 'Activate', 'archivesposttab' ); ?>" />&nbsp;
										<?php } else { ?>
										<input type="submit" name="btnDeact" id="btnDeact" class="button button-primary" value="<?php _e( 'Deactivate' , 'archivesposttab' ); ?>" />
										<?php } ?></p>
									</td>
								</tr>
							</tbody>
						</table>	
						
					</form>
				</div> 
			
			<?php 
		}
		
		/**
		 * Register menu on left sidebar in admin panel.
		 * 
		 * @access    public
		 * @since     1.0
		 *
		 * @return    void
		 */	
		public function avptab_add_plugin_admin_menu() {
		 
			add_submenu_page(
				'options-general.php',
				__( 'Archive Posts Tab', 'archivesposttab'),
				__( 'Archive Posts Tab', 'archivesposttab'),
				'manage_options',
				'archivesposttab_settings',
				array( $this, 'avptab_display_plugin_settings_admin_page' )
			);
		 
		}		
		
	}
}

new archivesPostTabLicenseConfig_Admin();