bp_groups_admin_load()

function bp_groups_admin_load() {
	global $bp_groups_list_table;

	// Build redirection URL.
	$redirect_to = remove_query_arg( array( 'action', 'action2', 'gid', 'deleted', 'error', 'updated', 'success_new', 'error_new', 'success_modified', 'error_modified' ), $_SERVER['REQUEST_URI'] );

	$doaction   = bp_admin_list_table_current_bulk_action();
	$min        = bp_core_get_minified_asset_suffix();

	/**
	 * Fires at top of groups admin page.
	 *
	 * @since BuddyPress 1.7.0
	 *
	 * @param string $doaction Current $_GET action being performed in admin screen.
	 */
	do_action( 'bp_groups_admin_load', $doaction );

	// Edit screen.
	if ( 'do_delete' == $doaction && ! empty( $_GET['gid'] ) ) {

		check_admin_referer( 'bp-groups-delete' );

		$group_ids = wp_parse_id_list( $_GET['gid'] );
		$gf_ids    = wp_parse_id_list( $_GET['gfid'] );

		// Delete groups forums
		if ( ! empty( $gf_ids ) ) {
			foreach ( $gf_ids as $gf_id ) {
				$forum_ids = bbp_get_group_forum_ids( $gf_id );
				foreach ( $forum_ids as $forum_id ) {
					wp_delete_post( $forum_id, true );
				}
			}
		}

		$count = 0;
		foreach ( $group_ids as $group_id ) {
			if ( groups_delete_group( $group_id ) ) {
				$count++;
			}
		}

		$redirect_to = add_query_arg( 'deleted', $count, $redirect_to );

		bp_core_redirect( $redirect_to );

	} elseif ( 'edit' == $doaction && ! empty( $_GET['gid'] ) ) {
		// Columns screen option.
		add_screen_option( 'layout_columns', array( 'default' => 2, 'max' => 2, ) );

		get_current_screen()->add_help_tab( array(
			'id'      => 'bp-group-edit-overview',
			'title'   => __( 'Overview', 'buddyboss' ),
			'content' =>
				'<p>' . __( 'This page is a convenient way to edit the details associated with one of your groups.', 'buddyboss' ) . '</p>' .
				'<p>' . __( 'The Name and Description box is fixed in place, but you can reposition all the other boxes using drag and drop, and can minimize or expand them by clicking the title bar of each box. Use the Screen Options tab to hide or unhide, or to choose a 1- or 2-column layout for this screen.', 'buddyboss' ) . '</p>'
		) );

		// Help panel - sidebar links.
		get_current_screen()->set_help_sidebar(
			'<p><strong>' . __( 'For more information:', 'buddyboss' ) . '</strong></p>' .
			'<p>' . __( '<a href="https://www.buddyboss.com/resources/">Documentation</a>', 'buddyboss' ) . '</p>'
		);

		// Register metaboxes for the edit screen.
		add_meta_box( 'submitdiv', __( 'Save', 'buddyboss' ), 'bp_groups_admin_edit_metabox_status', get_current_screen()->id, 'side', 'high' );
		add_meta_box( 'bp_group_settings', __( 'Settings', 'buddyboss' ), 'bp_groups_admin_edit_metabox_settings', get_current_screen()->id, 'side', 'core' );
		add_meta_box( 'bp_group_add_members', __( 'Add New Members', 'buddyboss' ), 'bp_groups_admin_edit_metabox_add_new_members', get_current_screen()->id, 'normal', 'core' );
		add_meta_box( 'bp_group_members', __( 'Manage Members', 'buddyboss' ), 'bp_groups_admin_edit_metabox_members', get_current_screen()->id, 'normal', 'core' );

		// Group Type metabox. Only added if group types have been registered.
		$group_types = bp_groups_get_group_types();
		if ( ! empty( $group_types ) ) {
			add_meta_box(
				'bp_groups_admin_group_type',
				__( 'Group Type', 'buddyboss' ),
				'bp_groups_admin_edit_metabox_group_type',
				get_current_screen()->id,
				'side',
				'core'
			);
		}


		if ( bp_enable_group_hierarchies() ) {
			add_meta_box(
				'bp_groups_admin_group_parent',
				__( 'Group Parent', 'buddyboss' ),
				'bp_groups_admin_edit_metabox_group_parent',
				get_current_screen()->id,
				'side',
				'core'
			);
		}

		/**
		 * Fires after the registration of all of the default group meta boxes.
		 *
		 * @since BuddyPress 1.7.0
		 */
		do_action( 'bp_groups_admin_meta_boxes' );

		// Enqueue JavaScript files.
		wp_enqueue_script( 'postbox' );
		wp_enqueue_script( 'dashboard' );

	// Index screen.
	} else {
		// Create the Groups screen list table.
		$bp_groups_list_table = new BP_Groups_List_Table();

		// The per_page screen option.
		add_screen_option( 'per_page', array( 'label' => __( 'Groups', 'buddyboss' )) );

		// Help panel - overview text.
		get_current_screen()->add_help_tab( array(
			'id'      => 'bp-groups-overview',
			'title'   => __( 'Overview', 'buddyboss' ),
			'content' =>
				'<p>' . __( 'You can manage groups much like you can manage comments and other content. This screen is customizable in the same ways as other management screens, and you can act on groups by using the on-hover action links or the Bulk Actions.', 'buddyboss' ) . '</p>',
		) );

		get_current_screen()->add_help_tab( array(
			'id'      => 'bp-groups-overview-actions',
			'title'   => __( 'Group Actions', 'buddyboss' ),
			'content' =>
				'<p>' . __( 'Clicking "Visit" will take you to the group\'s public page. Use this link to see what the group looks like on the front end of your site.', 'buddyboss' ) . '</p>' .
				'<p>' . __( 'Clicking "Edit" will take you to a Dashboard panel where you can manage various details about the group, such as its name and description, its members, and other settings.', 'buddyboss' ) . '</p>' .
				'<p>' . __( 'If you click "Delete" under a specific group, or select a number of groups and then choose Delete from the Bulk Actions menu, you will be led to a page where you\'ll be asked to confirm the permanent deletion of the group(s).', 'buddyboss' ) . '</p>',
		) );

		// Help panel - sidebar links.
		get_current_screen()->set_help_sidebar(
			'<p><strong>' . __( 'For more information:', 'buddyboss' ) . '</strong></p>' .
			'<p>' . __( '<a href="https://www.buddyboss.com/resources/">Documentation</a>', 'buddyboss' ) . '</p>'
		);

		// Add accessible hidden heading and text for Groups screen pagination.
		get_current_screen()->set_screen_reader_content( array(
			/* translators: accessibility text */
			'heading_pagination' => __( 'Groups list navigation', 'buddyboss' ),
		) );
	}

	$bp = buddypress();

	// Enqueue CSS and JavaScript.
	wp_enqueue_script( 'bp_groups_admin_js', $bp->plugin_url . "bp-groups/admin/js/admin{$min}.js", array( 'jquery', 'wp-ajax-response', 'jquery-ui-autocomplete' ), bp_get_version(), true );
	wp_localize_script( 'bp_groups_admin_js', 'BP_Group_Admin', array(
		'add_member_placeholder' => __( 'Start typing a username to add a new member.', 'buddyboss' ),
		'warn_on_leave'          => __( 'If you leave this page, you will lose any unsaved changes you have made to the group.', 'buddyboss' ),
	) );
	wp_enqueue_style( 'bp_groups_admin_css', $bp->plugin_url . "bp-groups/admin/css/admin{$min}.css", array(), bp_get_version() );

	wp_style_add_data( 'bp_groups_admin_css', 'rtl', true );
	if ( $min ) {
		wp_style_add_data( 'bp_groups_admin_css', 'suffix', $min );
	}


	if ( $doaction && 'save' == $doaction ) {
		// Get group ID.
		$group_id = isset( $_REQUEST['gid'] ) ? (int) $_REQUEST['gid'] : '';

		$redirect_to = add_query_arg( array(
			'gid'    => (int) $group_id,
			'action' => 'edit'
		), $redirect_to );

		// Check this is a valid form submission.
		check_admin_referer( 'edit-group_' . $group_id );

		// Get the group from the database.
		$group = groups_get_group( $group_id );

		// If the group doesn't exist, just redirect back to the index.
		if ( empty( $group->slug ) ) {
			wp_redirect( $redirect_to );
			exit;
		}

		// Check the form for the updated properties.
		// Store errors.
		$error = 0;
		$success_new = $error_new = $success_modified = $error_modified = array();

		// Name, description and slug must not be empty.
		if ( empty( $_POST['bp-groups-name'] ) ) {
			$error = $error - 1;
		}

		if ( empty( $_POST['bp-groups-slug'] ) ) {
			$error = $error - 4;
		}

		/*
		 * Group name, slug, and description are handled with
		 * groups_edit_base_group_details().
		 */
		if ( ! $error && ! groups_edit_base_group_details( array(
				'group_id'       => $group_id,
				'name'           => $_POST['bp-groups-name'],
				'slug'           => $_POST['bp-groups-slug'],
				'description'    => $_POST['bp-groups-description'],
				'parent_id'      => isset( $_POST['bp-groups-parent'] ) ? $_POST['bp-groups-parent'] : 0,
				'notify_members' => false,
			) ) ) {
			$error = $group_id;
		}

		// Enable discussion forum.
		$enable_forum   = ( isset( $_POST['group-show-forum'] ) ) ? 1 : 0;

		/**
		 * Filters the allowed status values for the group.
		 *
		 * @since BuddyPress 1.0.2
		 *
		 * @param array $value Array of allowed group statuses.
		 */
		$allowed_status = apply_filters( 'groups_allowed_status', array( 'public', 'private', 'hidden' ) );
		$status         = ( in_array( $_POST['group-status'], (array) $allowed_status ) ) ? $_POST['group-status'] : 'public';

		/**
		 * Filters the allowed invite status values for the group.
		 *
		 * @since BuddyPress 1.5.0
		 *
		 * @param array $value Array of allowed invite statuses.
		 */
		$allowed_invite_status = apply_filters( 'groups_allowed_invite_status', array( 'members', 'mods', 'admins' ) );
		$invite_status	       = in_array( $_POST['group-invite-status'], (array) $allowed_invite_status ) ? $_POST['group-invite-status'] : 'members';

		/**
		 * Filters the allowed activity feed status values for the group.
		 *
		 * @since BuddyBoss 1.0.0
		 *
		 * @param array $value Array of allowed activity feed statuses.
		 */
		$allowed_activity_feed_status = apply_filters( 'groups_allowed_activity_feed_status', array( 'members', 'mods', 'admins' ) );
		$activity_feed_status	       = in_array( $_POST['group-activity-feed-status'], (array) $allowed_activity_feed_status ) ? $_POST['group-activity-feed-status'] : 'members';

		/**
		 * Filters the allowed media status values for the group.
		 *
		 * @since BuddyBoss 1.0.0
		 *
		 * @param array $value Array of allowed media statuses.
		 */
		$allowed_media_status = apply_filters( 'groups_allowed_media_status', array( 'members', 'mods', 'admins' ) );
		$media_status	       = in_array( $_POST['group-media-status'], (array) $allowed_media_status ) ? $_POST['group-media-status'] : 'members';

		/**
		 * Filters the allowed album status values for the group.
		 *
		 * @since BuddyBoss 1.0.0
		 *
		 * @param array $value Array of allowed album statuses.
		 */
		$allowed_album_status = apply_filters( 'groups_allowed_album_status', array( 'members', 'mods', 'admins' ) );
		$album_status	       = in_array( $_POST['group-album-status'], (array) $allowed_album_status ) ? $_POST['group-album-status'] : 'members';

		if ( !groups_edit_group_settings( $group_id, $enable_forum, $status, $invite_status, $activity_feed_status, false, $media_status, $album_status ) ) {
			$error = $group_id;
		}

		// Process new members.
		$user_names = array();

		if ( ! empty( $_POST['bp-groups-new-members'] ) ) {
			$user_names = array_merge( $user_names, explode( ',', $_POST['bp-groups-new-members'] ) );
		}

		if ( ! empty( $user_names ) ) {

			foreach( array_values( $user_names ) as $user_name ) {
				$un = trim( $user_name );

				// Make sure the user exists before attempting
				// to add to the group.
				$user = get_user_by( 'slug', $un );

				if ( empty( $user ) ) {
					$error_new[] = $un;
				} else {
					if ( ! groups_join_group( $group_id, $user->ID ) ) {
						$error_new[]   = $un;
					} else {
						$success_new[] = $un;
					}
				}
			}
		}

		// Process member role changes.
		if ( ! empty( $_POST['bp-groups-role'] ) && ! empty( $_POST['bp-groups-existing-role'] ) ) {

			// Before processing anything, make sure you're not
			// attempting to remove the all user admins.
			$admin_count = 0;
			foreach ( (array) $_POST['bp-groups-role'] as $new_role ) {
				if ( 'admin' == $new_role ) {
					$admin_count++;
					break;
				}
			}

			if ( ! $admin_count ) {

				$redirect_to = add_query_arg( 'no_admins', 1, $redirect_to );
				$error = $group_id;

			} else {

				// Process only those users who have had their roles changed.
				foreach ( (array) $_POST['bp-groups-role'] as $user_id => $new_role ) {
					$user_id = (int) $user_id;

					$existing_role = isset( $_POST['bp-groups-existing-role'][$user_id] ) ? $_POST['bp-groups-existing-role'][$user_id] : '';

					if ( $existing_role != $new_role ) {
						$result = false;

						switch ( $new_role ) {
							case 'mod' :
								// Admin to mod is a demotion. Demote to
								// member, then fall through.
								if ( 'admin' == $existing_role ) {
									groups_demote_member( $user_id, $group_id );
								}

							case 'admin' :
								// If the user was banned, we must
								// unban first.
								if ( 'banned' == $existing_role ) {
									groups_unban_member( $user_id, $group_id );
								}

								// At this point, each existing_role
								// is a member, so promote.
								$result = groups_promote_member( $user_id, $group_id, $new_role );

								break;

							case 'member' :

								if ( 'admin' == $existing_role || 'mod' == $existing_role ) {
									$result = groups_demote_member( $user_id, $group_id );
								} elseif ( 'banned' == $existing_role ) {
									$result = groups_unban_member( $user_id, $group_id );
								}

								break;

							case 'banned' :

								$result = groups_ban_member( $user_id, $group_id );

								break;

							case 'remove' :

								$result = groups_remove_member( $user_id, $group_id );

								break;
						}

						// Store the success or failure.
						if ( $result ) {
							$success_modified[] = $user_id;
						} else {
							$error_modified[]   = $user_id;
						}
					}
				}
			}
		}

		/**
		 * Fires before redirect so plugins can do something first on save action.
		 *
		 * @since BuddyPress 1.6.0
		 *
		 * @param int $group_id ID of the group being edited.
		 */
		do_action( 'bp_group_admin_edit_after', $group_id );

		// Create the redirect URL.
		if ( $error ) {
			// This means there was an error updating group details.
			$redirect_to = add_query_arg( 'error', (int) $error, $redirect_to );
		} else {
			// Group details were update successfully.
			$redirect_to = add_query_arg( 'updated', 1, $redirect_to );
		}

		if ( !empty( $success_new ) ) {
			$success_new = implode( ',', array_filter( $success_new, 'urlencode' ) );
			$redirect_to = add_query_arg( 'success_new', $success_new, $redirect_to );
		}

		if ( !empty( $error_new ) ) {
			$error_new = implode( ',', array_filter( $error_new, 'urlencode' ) );
			$redirect_to = add_query_arg( 'error_new', $error_new, $redirect_to );
		}

		if ( !empty( $success_modified ) ) {
			$success_modified = implode( ',', array_filter( $success_modified, 'urlencode' ) );
			$redirect_to = add_query_arg( 'success_modified', $success_modified, $redirect_to );
		}

		if ( !empty( $error_modified ) ) {
			$error_modified = implode( ',', array_filter( $error_modified, 'urlencode' ) );
			$redirect_to = add_query_arg( 'error_modified', $error_modified, $redirect_to );
		}

		/**
		 * Filters the URL to redirect to after successfully editing a group.
		 *
		 * @since BuddyPress 1.7.0
		 *
		 * @param string $redirect_to URL to redirect user to.
		 */
		wp_redirect( apply_filters( 'bp_group_admin_edit_redirect', $redirect_to ) );
		exit;


	// If a referrer and a nonce is supplied, but no action, redirect back.
	} elseif ( ! empty( $_GET['_wp_http_referer'] ) ) {
		wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), stripslashes( $_SERVER['REQUEST_URI'] ) ) );
		exit;
	}
}