/**

* Holds the list of plugin details for the current site.

* @var array

*/

public $sites_plugins = array();

public function _construct() {}

/**

* Hook in to actions to get things going.

*/

public function setup() {

add_action( 'admin_enqueue_scripts', array( $this, 'register_admin_styles' ) );

add_action( 'admin_menu', array( $this, 'admin_menu' ) );

}

/**

* Register the CSS file for the plugin comparison admin page.

*/

public function register_admin_styles() {

wp_register_style( 'bpp-compare-site-plugins-styles', plugin_dir_url( __FILE__ ) . 'css/bpp-compare-site-plugins.css', array(), '1', 'all' );

}

/**

* Add a 'Compare' sub-menu item under the Plugins admin menu.

*/

public function admin_menu() {

add_plugins_page( 'Compare Site Plugins', 'Compare', 'activate_plugins', 'bpp-compare-site-plugins', array( $this, 'compare_plugins_admin_page' ) );

}

/**

* The 'Compare' admin menu page content.

* @return [type] [description]

*/

public function compare_plugins_admin_page() {

wp_enqueue_style('bpp-compare-site-plugins-styles');

if(

( isset( $_GET['bulk-activate'] ) && $_GET['bulk-activate'] == true ) ||

( isset( $_GET['bulk-network-activate'] ) && $_GET['bulk-network-activate'] == true )

) {

pew_compare_site_plugins_bulk_activate();

}

// Get the list of plugin details for the current site and store it for use later.

$this->sites_plugins = array(

'name' => get_bloginfo( 'name' ),

'all' => get_plugins(),

// 'all' => array_keys( get_plugins() ),

'active' => get_option( 'active_plugins' ),

);

/*

echo '<pre>';

var_dump( get_plugins() );

echo '</pre>';

*/

if( is_multisite() ) {

$this->sites_plugins['network_active'] = array_keys( get_site_option('active_sitewide_plugins') );

}

$posted_site_id = 0;

if( isset( $_POST['site_id'] ) ) {

$posted_site_id = $_POST['site_id'];

}

if(

( $posted_site_id > 0 || isset( $_POST['plugins'] ) ) &&

isset( $_POST['nonce'] ) &&

wp_verify_nonce( $_POST['nonce'], get_current_user_id() )

) {

$this->admin_page_step_2();

} else {

$this->admin_page_step_1();

}

}

/**

* The default view of the 'Compare' admin menu page.

*/

public function admin_page_step_1() {

$user_id = get_current_user_id();

$user_sites = get_blogs_of_user( $user_id );

?>

<h1>Compare Site Plugins</h1>

<form action="plugins.php?page=bpp-compare-site-plugins" method="post">

<label for="plugins">Paste the <strong>Plugin Code</strong> from another site running this plugin</label>

<textarea name="plugins" id="plugins" rows="5" cols="70"></textarea>

<?php if( is_multisite() && $user_sites ): global $blog_id; ?>

<p class="or">Or</p>

<label>Select a Site</label>

<select name="site_id">

<option value=""></option>

<?php

foreach( $user_sites as $site ):

if( $site->userblog_id != $blog_id ):

?>

<option value="<?php echo intval( $site->userblog_id ); ?>"><?php echo $site->blogname; ?></option>

<?php endif; endforeach; ?>

</select>

<?php endif; ?>

<?php wp_nonce_field($user_id, 'nonce'); ?>

<input type="submit" class="button button-primary" value="Compare plugins">

<label>Copy the following <strong>Plugin Code</strong> to compare the plugins on this site to another site</label>

<textarea onclick="this.select()" rows="2" cols="70"><?php echo base64_encode( serialize( $this->sites_plugins ) ); ?></textarea>

</form>

<?php

}

/**

* The view for actually comparing plugins in the 'Compare' admin menu page.

*/

public function admin_page_step_2() {

$site_id = intval( $_POST['site_id'] );

$other_sites_plugins = unserialize( base64_decode( $_POST['plugins'] ) );

if( !$other_sites_plugins[0] && $site_id > 0 ) {

switch_to_blog( $site_id );

$blog_deets = get_blog_details($site_id);

$other_sites_plugins = array(

'name' => $blog_deets->blogname,

'active' => get_option('active_plugins')

);

restore_current_blog();

}

$this_sites_plugins = $this->array_check( $this->sites_plugins );

$other_sites_plugins = $this->array_check( $other_sites_plugins );

?>

<h2 class="nav-tab-wrapper">

<a href="#this-site" class="nav-tab nav-tab-active">This Site</a>

<a href="#other-site" class="nav-tab"><?php echo $other_sites_plugins['name']; ?></a>

</h2>

<div id="this-site">

<?php

$other_sites_plugin_keys = array_keys( $other_sites_plugins['all'] );

$this_sites_plugin_keys = array_keys( $this_sites_plugins['all'] );

$missing_plugins = false;

if( !$site_id ) {

$missing_plugins = array_diff( $other_sites_plugin_keys, $this_sites_plugin_keys );

}

if( $missing_plugins ): ?>

<h2>Missing Plugins</h2>

<p>The following plugins need to be downloaded for this site.</p>

<?php $this->render_missing_plugin_table( $missing_plugins, $other_sites_plugins ); ?>

<?php endif; ?>

<?php

$active_plugins = array_diff( $other_sites_plugins['active'], $this_sites_plugins['active'] );

if( $missing_plugins && $active_plugins ) {

$active_plugins = array_diff( $active_plugins, $missing_plugins );

}

if( $active_plugins ):

?>

<h2>Active Plugins</h2>

<p>The following plugins need to be activated for this site.</p>

<form action="plugins.php?page=bpp-compare-site-plugins&bulk-activate=true" method="post">

<ol>

<?php $this->render_plugin_list_items( $active_plugins, false, true ); ?>

</ol>

<input type="submit" class="button button-secondary" value="Activate Selected Plugins">

</form>

<?php endif; ?>

<?php

$network_plugins = array_diff( $other_sites_plugins['network_active'], $this_sites_plugins['network_active'] );

if( $missing_plugins && $network_plugins ) {

$network_plugins = array_diff( $network_plugins, $missing_plugins );

}

if( $network_plugins ): ?>

<h2>Network Plugins</h2>

<p>The following plugins need to be network activated for <?php echo $other_sites_plugins['name']; ?>.</p>

<form action="plugins.php?page=bpp-compare-site-plugins&bulk-network-activate=true" method="post">

<ol>

<?php $this->render_plugin_list_items( $network_plugins, false, true ); ?>

</ol>

<input type="submit" class="button button-secondary" value="Network Activate Selected Plugins">

</form>

<?php endif; ?>

</div>

<div id="other-site" class="hide">

<?php

$other_sites_plugin_keys = array_keys( $other_sites_plugins['all'] );

$this_sites_plugin_keys = array_keys( $this_sites_plugins['all'] );

$missing_plugins = false;

if( !$site_id ) {

$missing_plugins = array_diff( $this_sites_plugin_keys, $other_sites_plugin_keys );

}

if( $missing_plugins ): ?>

<h2>Missing Plugins</h2>

<p>The following plugins need to be downloaded for <?php echo $other_sites_plugins['name']; ?>.</p>

<?php $this->render_missing_plugin_table( $missing_plugins, $this_sites_plugins ); ?>

<?php endif; ?>

<?php

$active_plugins = array_diff( $this_sites_plugins['active'], $other_sites_plugins['active'] );

if( $missing_plugins && $active_plugins ) {

$active_plugins = array_diff( $active_plugins, $missing_plugins );

}

if( $active_plugins ):

?>

<h2>Active Plugins</h2>

<p>The following plugins need to be activated for <?php echo $other_sites_plugins['name']; ?>.</p>

<ol>

<?php $this->render_plugin_list_items( $active_plugins ); ?>

</ol>

<?php endif; ?>

<?php

$network_plugins = array_diff( $this_sites_plugins['network_active'], $other_sites_plugins['network_active'] );

if( $missing_plugins && $network_plugins ) {

$network_plugins = array_diff( $network_plugins, $missing_plugins );

}

if( $network_plugins && is_multisite() && !$site_id ): ?>

<h2>Network Plugins</h2>

<p>The following plugins need to be activated network-wide for <?php echo $other_sites_plugins['name']?>.</p>

<ol>

<?php $this->render_plugin_list_items( $network_plugins ); ?>

</ol>

<?php endif; ?>

</div>

<script>

jQuery(document).ready(function($) {

var $containers = $('#this-site, #other-site');

$('.nav-tab-wrapper a').click(function(e) {

e.preventDefault();

$this = $(this);

$this.parent().find('.nav-tab-active').removeClass('nav-tab-active');

$this.addClass('nav-tab-active');

$containers.addClass('hide');

var id = this.href.split('#')[1];

$('#' + id).removeClass('hide');

});

$containers.each(function(index, element) {

$this = $(this);

if( $this.children().length == 0 ) {

$this.append('<p>Everything looks good here!</p>');

}

});

});

</script>

<?php

}

/**

* Handles activating multiple plugins all at once.

*/

public function bulk_activate_plugins() {

$network_wide = false;

if( $_GET['bulk-network-activate'] == true ) {

$network_wide = true;

}

$checkboxes = $_POST['checkbox'];

if( !$checkboxes || !is_array($checkboxes) ) {

wp_die('Nothing selected.');

}

$result = activate_plugins( $checkboxes, $redirect = '', $network_wide );

if( is_wp_error( $result ) ) {

echo '<div id="message" class="error"><p>' . $result->get_error_message() . '</p></div>';

} else {

global $updated_message;

$label = 'plugins';

if( count($checkboxes) == 1 ) {

$label = 'plugin';

}

$network_label = '';

if( $network_wide ) {

$network_label = 'Network ';

}

$updated_message = $network_label . 'Activated ' . count( $checkboxes ) . ' ' . $label;

?>

<div class="updated" id="message"><p><?php echo $updated_message; ?></p></div>

<?php

}

}

/**

* Given a list of $paths render <li> items containing a checkbox, a link to the plugin URI if available, and the plugin name.

* @param array $paths An array of plugin paths to get details and render as <li>s

* @param boolean $plain Whether to show a non-linked plain <li> item with no additional details. Defaults to false.

* @param boolean $show_checkbox Whether to show a checkbox in the list items or not.

*/

public function render_plugin_list_items( $paths, $plain = false, $show_checkbox = false ) {

if( !is_array($paths) ) {

return false;

}

foreach( $paths as $path ):

$checkbox = '';

if( $show_checkbox ) {

$checkbox = "<input type='checkbox' value='$path' name='checkbox[]'> ";

}

if( $plain ) {

?>

<li><?php echo $checkbox . $path; ?></li>

<?php

} else {

$deets = get_plugin_data( trailingslashit(WP_PLUGIN_DIR) . $path );

$plugin_url = $deets['PluginURI'];

$plugin_name = $deets['Name'];

// $plugin_description = $deets['Description'];

if( $plugin_url ) {

$plugin_name = '<a href="' . esc_url( $plugin_url ) . '" target="_blank" title="' . esc_attr( $path ) . '">' . $plugin_name . '</a>';

}

?>

<li><?php echo $checkbox; echo $plugin_name; ?></li>

<?php }

endforeach;

}

/**

* Render an HTML table of details about plugins that are missing from a site.

* @param array $missing_plugins An array of plugin paths that are misisng from the current site.

* @param array $other_sites_plugins Array of all plugin details to compare against.

*/

public function render_missing_plugin_table( $missing_plugins, $other_sites_plugins ) {

?>

<table class="wp-list-table widefat">

<thead>

<tr>

<th></th>

<th>Plugin Name</th>

<th>Path</th>

</tr>

</thead>

<tbody>

<?php

$count = 1;

foreach( $missing_plugins as $plugin_path ):

$plugin = $other_sites_plugins['all'][ $plugin_path ];

$plugin_name = $plugin['Name'];

if( $plugin['PluginURI'] ) {

$plugin_name = '<a href="' . $plugin['PluginURI'] . '" target="_blank">' . $plugin_name . '</a>';

}

$class = 'alternate';

if( $count % 2 ) {

$class = '';

}

?>

<tr class="<?php echo $class; ?>">

<td><?php echo $count . '.'; ?></td>

<td><?php echo $plugin_name; ?></td>

<td><?php echo $plugin_path; ?></td>

</tr>

<?php

$count++;

endforeach;

?>

</tbody>

</table>

<?php

}

/**

* Helper function to make sure the proper array keys are set to avoid PHP notices and errors.

* @param array $arr The array to check.

*/

public function array_check( $arr ) {

$keys = array( 'all', 'network_active', 'active' );

foreach( $keys as $key ) {

if( !is_array( $arr[$key] ) ) {

$arr[ $key ] = array();

}

}

return $arr;

}