Sindbad~EG File Manager

<?php

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if(!class_exists('AdoreChurchFeatures'))
{
    add_action('admin_menu', 'adorechurch_welcome_page_menu');
    add_action('admin_notices', 'adorechurch_admin_notice');

    function adorechurch_admin_notice()
    {
        global $pagenow;
        echo '<div class="error notice" style="height:100px;"><div style="height:40px;"><div id="adorechurch-admin-notices"><h1>'.esc_html__('Adore Church Urgent Message!', 'framework').'</h1></div></div><p>'.esc_html__('Please install and activate the AdoreChurch core plugin now, its mandatory to keep this plugin always activated to use all features of this theme.', 'framework').'</p><a href="'.esc_url(site_url('/wp-admin/themes.php?page=adorechurch')).'">'.esc_html__('Install plugin here', 'framework').'</a></div>';
    }
}

 
function adorechurch_welcome_page_menu() {
    add_theme_page(
        'AdoreChurch',
        'AdoreChurch',
        'manage_options',
        'adorechurch',
        'adorechurch_welcome_page' );
}
 
function adorechurch_welcome_page() {
    ?>
    <div class="wrap about-wrap imi-admin-wrap">

	<h1><?php echo esc_html__( 'Welcome to AdoreChurch', 'framework' ); ?></h1>
	<div class="about-text"><?php echo esc_html__( 'AdoreChurch', 'framework' ) . esc_html__( ' is now installed and ready to use! Please install and activate the core plugin from below to get all the features of this theme.', 'framework' ); ?></div>
	<div class="wp-badge"></div>

	<div id="imi-dashboard" class="wrap about-wrap">
		<div class="welcome-content imi-clearfix">
            <div id="imi-dashboard" class="wrap about-wrap">
		<div class="welcome-content imi-clearfix extra">
			<div class="imi-row">
				<div class="imi-col-sm-12">
                    
                    <div class="imi-plugins imi-theme-browser-wrap">
		<div class="theme-browser rendered">
			<div class="themes">
                    <div class="theme ">

											<div class="plugin-requirement plugin-required"><?php esc_html_e('REQUIRED', 'framework'); ?></div>
					
					<div class="theme-screenshot">
						<img src="<?php echo esc_url(get_template_directory_uri().'/framework/tgm/images/plugin-screen-core.png'); ?>" alt="Screen">
					</div>

					<h3 class="theme-name"><?php esc_html_e('Add core features of theme', 'framework'); ?></h3>
                    <?php
                    if ( ! function_exists('is_plugin_inactive')) {
    require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
}

if (is_plugin_inactive('adorechurch-core/adorechurch-core.php')) {
    //plugin is not activated
    $adorechurch_core_plugin = WP_PLUGIN_DIR.'/adorechurch-core';
    if(is_file($adorechurch_core_plugin.'/adorechurch-core.php'))
   {
      if( empty( $wp_filesystem ) )
      {
         require_once ABSPATH .'/wp-admin/includes/file.php';
         WP_Filesystem();
      }
      global $wp_filesystem;
      if( $wp_filesystem )
      {
         $wp_filesystem->delete($adorechurch_core_plugin, true);
      }
   }
}
    
?>
					<div class="theme-actions">
                        <div class="row-actions visible">
                            <span class="install">
                                <a href="<?php echo esc_url(home_url()); ?>/wp-admin/themes.php?page=tgmpa-install-plugins&amp;plugin=adorechurch-core&amp;tgmpa-install=install-plugin&amp;tgmpa-nonce=<?php echo esc_attr(wp_create_nonce('tgmpa-install')); ?>" data-plugin-action="install" class="button imi-admin-btn">Activate <span class="screen-reader-text"><?php esc_html_e('Add core features of theme', 'framework'); ?></span>
                                </a>
                            </span>
                        </div>
                        <button type="button" class="toggle-row">
                            <span class="screen-reader-text">Show more details</span>
                        </button>
                    </div>

				</div>
            </div></div></div>
				</div>
			</div>
		</div>
	</div>
	</div>
    </div>
</div> <!-- end wrap -->
<?php
}

class IMI_Admin_Default {

	public function __construct() {
        
		
		add_filter( 'tgmpa_load', array( $this, 'tgmpa_load' ), 10 );
		add_action( 'wp_ajax_imi_install_plugin', array( $this, 'install_plugin' ) );
		add_action( 'wp_ajax_imi_activate_plugin', array( $this, 'activate_plugin' ) );
		add_action( 'wp_ajax_imi_deactivate_plugin', array( $this, 'deactivate_plugin' ) );
		add_action( 'wp_ajax_imi_update_plugin', array( $this, 'update_plugin' ) );
		add_action( 'after_switch_theme', array( $this, 'after_switch_theme' ) );
	}
	
	public function tgmpa_load( $load ) {
		return true;
	}

	public function install_plugin() {
		
		if ( current_user_can( 'manage_options' ) ) {
			
			check_admin_referer( 'tgmpa-install', 'tgmpa-nonce' );
			
			global $tgmpa;
			
			$tgmpa->install_plugins_page();
			
			$url = wp_nonce_url(
				add_query_arg(
					array(
						'plugin'			=> urlencode( $_GET['plugin'] ),
						'tgmpa-deactivate'	=> 'deactivate-plugin',
					),
					$tgmpa->get_tgmpa_url()
				),
				'tgmpa-deactivate',
				'tgmpa-nonce'
			);

			echo 'imi';
			echo wp_specialchars_decode( $url );
			
		}
		
		// this is required to terminate immediately and return a proper response
		wp_die();
		
	}

    public function after_switch_theme(){
		if ( is_admin() && current_user_can( 'manage_options' ) && !class_exists('AdoreChurchFeatures')) {
			wp_redirect( admin_url( 'themes.php?page=adorechurch' ) );
		}
	}
    
	public function activate_plugin() {
		
		if ( current_user_can( 'edit_theme_options' ) ) {
			
			check_admin_referer( 'tgmpa-activate', 'tgmpa-nonce' );
			
			global $tgmpa;
			
			$plugins = $tgmpa->plugins;
			
			foreach ( $plugins as $plugin ) {
				
				if ( isset( $_GET['plugin'] ) && $plugin['slug'] === $_GET['plugin'] ) {
					
					activate_plugin( $plugin['file_path'] );
					
					$url = wp_nonce_url(
						add_query_arg(
							array(
								'plugin'			=> urlencode( $_GET['plugin'] ),
								'tgmpa-deactivate'	=> 'deactivate-plugin',
							),
							$tgmpa->get_tgmpa_url()
						),
						'tgmpa-deactivate',
						'tgmpa-nonce'
					);
					
					echo wp_specialchars_decode( $url );
					
				}
				
			} // foreach
			
		}
		
		// this is required to terminate immediately and return a proper response
		wp_die();
		
	}
	
	public function deactivate_plugin() {
		
		if ( current_user_can( 'edit_theme_options' ) ) {
			
			check_admin_referer( 'tgmpa-deactivate', 'tgmpa-nonce' );
			
			global $tgmpa;
			
			$plugins = $tgmpa->plugins;
			
			foreach ( $plugins as $plugin ) {
				
				if ( isset( $_GET['plugin'] ) && $plugin['slug'] === $_GET['plugin'] ) {
					
					deactivate_plugins( $plugin['file_path'] );
					
					$url = wp_nonce_url(
						add_query_arg(
							array(
								'plugin'			=> urlencode( $_GET['plugin'] ),
								'tgmpa-activate'	=> 'activate-plugin',
							),
							$tgmpa->get_tgmpa_url()
						),
						'tgmpa-activate',
						'tgmpa-nonce'
					);
					
					echo wp_specialchars_decode( $url );
					
				}
				
			} // foreach
			
		}
		
		// this is required to terminate immediately and return a proper response
		wp_die();
		
	}

	public function update_plugin() {
		if ( current_user_can( 'manage_options' ) ) {
			check_admin_referer( 'tgmpa-update', 'tgmpa-nonce' );
			global $tgmpa;
			$tgmpa->install_plugins_page();

			$url = wp_nonce_url(
				add_query_arg(
					array(
						'plugin'			=> urlencode( $_GET['plugin'] ),
						'tgmpa-deactivate'	=> 'deactivate-plugin',
					),
					$tgmpa->get_tgmpa_url()
				),
				'tgmpa-deactivate',
				'tgmpa-nonce'
			);

			echo 'imi';
			echo wp_specialchars_decode( $url );
		}
		
		// this is required to terminate immediately and return a proper response
		wp_die();
	}
	
}

new IMI_Admin_Default();