<?php
/**
 * Uninstall.
 *
 * The Site Lock features are filters and write nothing, so there is nothing of theirs to clean up.
 *
 * Keep URL and Email Log are the two exceptions in the plugin: each keeps its own table, and its
 * rows deliberately outlive switching the feature off. A redirect that vanished when you toggled a
 * setting would strand every link pointing at it, and an email log that vanished the moment you
 * looked away from the setting would defeat the point of keeping one. Uninstalling is the one
 * action that does mean "forget them", so both tables go here.
 *
 * Live-draft pointer meta is removed too. It lives on drafts, not on published posts, but a
 * pointer left behind after the plugin is gone is a meta key nothing will ever read again.
 *
 * @package Adminkeep
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

/**
 * Remove everything this plugin owns on the current site.
 *
 * @return void
 */
function adminkeep_uninstall_current_site() {
	global $wpdb;

	delete_option( 'adminkeep_settings' );
	delete_option( 'adminkeep_custom_css' );
	delete_option( 'adminkeep_smtp' );
	delete_option( 'adminkeep_smtp_last_error' );

	$adminkeep_table = $wpdb->prefix . 'adminkeep_path_redirects';

	// Plugin-owned table; the name is $wpdb->prefix plus a literal and DDL has no prepared form.
	$wpdb->query( "DROP TABLE IF EXISTS {$adminkeep_table}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.PreparedSQL, PluginCheck.Security.DirectDB.UnescapedDBParameter

	delete_option( 'adminkeep_redirect_schema' );

	// The email log holds other people's addresses and, by default, what was written to them.
	// Unlike the redirect table nobody's links depend on it, so there is no case for keeping it.
	$adminkeep_log_table = $wpdb->prefix . 'adminkeep_email_log';

	$wpdb->query( "DROP TABLE IF EXISTS {$adminkeep_log_table}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.PreparedSQL, PluginCheck.Security.DirectDB.UnescapedDBParameter

	delete_option( 'adminkeep_email_log_schema' );
	delete_option( 'adminkeep_email_log_import' );
	wp_clear_scheduled_hook( 'adminkeep_email_log_purge' );

	$wpdb->delete( $wpdb->postmeta, array( 'meta_key' => '_adminkeep_live_draft_of' ), array( '%s' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.SlowDBQuery

	// Retained previous versions of replaced media. The files themselves are left on disk on
	// purpose: deleting user uploads during an uninstall is not this plugin's call to make.
	$wpdb->delete( $wpdb->postmeta, array( 'meta_key' => '_adminkeep_replaced_file' ), array( '%s' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.SlowDBQuery

	wp_clear_scheduled_hook( 'adminkeep_cleanup_replaced_media' );

	// Names 1.1.0 stored under, for a site uninstalled before the rename in 1.2.0 ever ran.
	delete_option( 'wp_pro_admin_settings' );
	delete_option( 'wp_pro_admin_redirect_schema' );

	$adminkeep_old_table = $wpdb->prefix . 'wppa_path_redirects';

	$wpdb->query( "DROP TABLE IF EXISTS {$adminkeep_old_table}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.PreparedSQL, PluginCheck.Security.DirectDB.UnescapedDBParameter

	$wpdb->delete( $wpdb->postmeta, array( 'meta_key' => '_wppa_live_draft_of' ), array( '%s' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.SlowDBQuery
	$wpdb->delete( $wpdb->postmeta, array( 'meta_key' => '_wppa_replaced_file' ), array( '%s' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB.SlowDBQuery

	wp_clear_scheduled_hook( 'wp_pro_admin_cleanup_replaced_media' );
}

// Everything above is per-site — the option, the table prefix and the meta table all differ per
// blog — so on multisite every site gets the full clean, not just the option.
if ( is_multisite() ) {
	$adminkeep_site_ids = get_sites(
		array(
			'fields'                 => 'ids',
			'number'                 => 0,
			'update_site_meta_cache' => false,
		)
	);

	foreach ( $adminkeep_site_ids as $adminkeep_site_id ) {
		switch_to_blog( $adminkeep_site_id );
		adminkeep_uninstall_current_site();
		restore_current_blog();
	}
} else {
	adminkeep_uninstall_current_site();
}

// User meta belongs to no single site, so it is removed once, for every user.
delete_metadata( 'user', 0, 'adminkeep_hide_unused', '', true );