<?php
/** wp-last-login.php
 *
 * Plugin Name: WP Last Login
 * Plugin URI:  http://en.wp.obenland.it/wp-last-login/#utm_source=wordpress&utm_medium=plugin&utm_campaign=wp-last-login
 * Description: Displays the date of the last login in user lists.
 * Version:     1.4.0
 * Author:      Konstantin Obenland
 * Author URI:  http://en.wp.obenland.it/#utm_source=wordpress&utm_medium=plugin&utm_campaign=wp-last-login
 * Text Domain: wp-last-login
 * Domain Path: /lang
 * License:     GPLv2
 */


if ( ! class_exists( 'Obenland_Wp_Plugins_v301' ) ) {
	require_once( 'obenland-wp-plugins.php' );
}


class Obenland_Wp_Last_Login extends Obenland_Wp_Plugins_v301 {


	///////////////////////////////////////////////////////////////////////////
	// METHODS, PUBLIC
	///////////////////////////////////////////////////////////////////////////

	/**
	 * Constructor.
	 *
	 * @author Konstantin Obenland
	 * @since  1.0 - 23.01.2012
	 * @access public
	 *
	 * @return Obenland_Wp_Last_Login
	 */
	public function __construct() {
		parent::__construct( array(
			'textdomain'     => 'wp-last-login',
			'plugin_path'    => __FILE__,
			'donate_link_id' => 'K32M878XHREQC',
		) );

		load_plugin_textdomain( 'wp-last-login', false, 'wp-last-login/lang' );

		$this->hook( 'wp_login' );

		/**
		 * Programmers:
		 * To limit this information to certain user roles, add a filter to
		 * 'wpll_current_user_can' and check for user permissions, returning
		 * true or false!
		 *
		 * Example:
		 *
		 * function prefix_wpll_visibility( $bool ) {
		 *     return current_user_can( 'manage_options' ); // Only for Admins
		 * }
		 * add_filter( 'wpll_current_user_can', 'prefix_wpll_visibility' );
		 *
		 */
		if ( is_admin() && apply_filters( 'wpll_current_user_can', true ) ) {

			$this->hook( 'manage_site-users-network_columns',     'add_column', 1 );
			$this->hook( 'manage_users_columns',                  'add_column', 1 );
			$this->hook( 'wpmu_users_columns',                    'add_column', 1 );
			$this->hook( 'admin_print_styles-users.php',          'column_style'  );
			$this->hook( 'admin_print_styles-site-users.php',     'column_style'  );
			$this->hook( 'manage_users_custom_column'                             );
			$this->hook( 'manage_users_sortable_columns',         'add_sortable'  );
			$this->hook( 'manage_users-network_sortable_columns', 'add_sortable'  );
			$this->hook( 'pre_get_users'                                          );
		}
	}


	/**
	 * Update the login timestamp.
	 *
	 * @author Konstantin Obenland
	 * @since  1.0 - 23.01.2012
	 * @access public
	 *
	 * @param  string $user_login The user's login name.
	 *
	 * @return void
	 */
	public function wp_login( $user_login ) {
		$user = get_user_by( 'login', $user_login );
		update_user_meta( $user->ID, $this->textdomain, time() );
	}


	/**
	 * Adds the last login column to the network admin user list.
	 *
	 * @author Konstantin Obenland
	 * @since  1.0 - 23.01.2012
	 * @access public
	 *
	 * @param  array $cols The default columns.
	 *
	 * @return array
	 */
	public function add_column( $cols ) {
		$cols[ $this->textdomain ] = __( 'Last Login', 'wp-last-login' );
		return $cols;
	}


	/**
	 * Adds the last login column to the network admin user list.
	 *
	 * @author Konstantin Obenland
	 * @since  1.0 - 23.01.2012
	 * @access public
	 *
	 * @param  string $value       Value of the custom column.
	 * @param  string $column_name The name of the column.
	 * @param  int    $user_id     The user's id.
	 *
	 * @return string
	 */
	public function manage_users_custom_column( $value, $column_name, $user_id ) {
		if ( $this->textdomain == $column_name ) {
			$value      = __( 'Never.', 'wp-last-login' );
			$last_login = (int) get_user_meta( $user_id, $this->textdomain, true );

			if ( $last_login ) {
				$format = apply_filters( 'wpll_date_format', get_option( 'date_format' ) );
				$value  = date_i18n( $format, $last_login );
			}
		}

		return $value;
	}


	/**
	 * Register the column as sortable.
	 *
	 * @author Konstantin Obenland
	 * @since  1.2.0 - 11.12.2012
	 * @access public
	 *
	 * @param  array $columns
	 *
	 * @return array
	 */
	public function add_sortable( $columns ) {
		$columns[ $this->textdomain ] = $this->textdomain;

		return $columns;
	}


	/**
	 * Handle ordering by last login.
	 *
	 * @since  1.2.0 - 11.12.2012
	 * @access public
	 *
	 * @param  WP_User_Query $user_query Request arguments.
	 *
	 * @return WP_User_Query
	 */
	public function pre_get_users( $user_query ) {
		if ( isset( $user_query->query_vars['orderby'] ) && $this->textdomain == $user_query->query_vars['orderby'] ) {
			$user_query->query_vars = array_merge( $user_query->query_vars, array(
				'meta_key' => $this->textdomain,
				'orderby'  => 'meta_value_num',
			) );
		}

		return $user_query;
	}


	/**
	 * Defines the width of the column
	 *
	 * @author Konstantin Obenland
	 * @since  1.0 - 23.01.2012
	 * @access public
	 *
	 * @return void
	 */
	public function column_style() {
		?>
		<style type="text/css">
			.column-wp-last-login { width: 12%; }
		</style>
		<?php
	}

} // End of class Obenland_Wp_Last_Login.


new Obenland_Wp_Last_Login;

/**
 * Sets a default meta value for all users.
 *
 * Allows sorting users by last login to work, even though some might not have
 * recorded login time.
 *
 * @see https://wordpress.org/support/topic/wp-40-sorting-by-date-doesnt-work
 */
function wpll_activate() {
	$user_ids = get_users( array(
		'blog_id' => '',
		'fields'  => 'ID',
	) );

	foreach ( $user_ids as $user_id ) {
		update_user_meta( $user_id, 'wp-last-login', 0 );
	}
}
register_activation_hook( __FILE__, 'wpll_activate' );


/* End of file wp-last-login.php */
/* Location: ./wp-content/plugins/wp-last-login/wp-last-login.php */