<?php
/**
 * Uninstall AccessNow Spam Eater.
 *
 * - The IP block list, the spam log and the failed-login counters are always
 *   deleted: they hold pseudonymised personal data (hashed and anonymised IP
 *   addresses) and are of no use without the plugin. So is the weekly summary's
 *   schedule. Leftovers from version 2.0.x are removed too.
 * - Settings (including the allow and block lists and your own words), the
 *   honeypot field name, the daily counts and the blocked counter are only deleted
 *   when "Delete all Spam Eater settings and statistics when the plugin is
 *   deleted" is ticked on the settings page (off by default).
 *
 * @package AccessNow\SpamEater
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

/**
 * Remove Spam Eater data for the current site.
 */
function accessnow_spam_eater_uninstall_site() {
	$always = array(
		'accessnow_spam_eater_blocked_ips',
		'accessnow_spam_eater_log',
		'accessnow_spam_eater_legacy_until',
		'accessnow_spam_eater_login_throttle',
		'spam_eater_blocked_ips',
		'spam_eater_log',
	);
	foreach ( $always as $option ) {
		delete_option( $option );
	}
	wp_clear_scheduled_hook( 'accessnow_spam_eater_weekly_summary' );

	// Bot test results (ten-minute transients, one per administrator).
	global $wpdb;
	$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s", $wpdb->esc_like( '_transient_accessnow_spam_eater_bot_test_' ) . '%', $wpdb->esc_like( '_transient_timeout_accessnow_spam_eater_bot_test_' ) . '%' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery -- One-off clean-up on uninstall.

	$settings = get_option( 'accessnow_spam_eater_settings', array() );
	if ( is_array( $settings ) && ! empty( $settings['delete_data'] ) ) {
		$opt_in = array(
			'accessnow_spam_eater_settings',
			'accessnow_spam_eater_field_name',
			'accessnow_spam_eater_blocked_count',
			'accessnow_spam_eater_daily_stats',
			'accessnow_spam_eater_db_version',
		);
		foreach ( $opt_in as $option ) {
			delete_option( $option );
		}
	}
}

if ( is_multisite() ) {
	$accessnow_spam_eater_site_ids = get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	);
	foreach ( $accessnow_spam_eater_site_ids as $accessnow_spam_eater_site_id ) {
		switch_to_blog( $accessnow_spam_eater_site_id );
		accessnow_spam_eater_uninstall_site();
		restore_current_blog();
	}
} else {
	accessnow_spam_eater_uninstall_site();
}