<?php
/**
 * Uninstall script for Newsletter - SMTP (by ROBOTSTXT).
 *
 * Removes plugin data and database tables on uninstall.
 *
 * @package ROBOTSTXT_SMTP_Newsletter
 */

// Exit if not called by WordPress uninstaller.
if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit;
}

// Check if should delete data.
$should_delete = false;

if ( function_exists( 'is_multisite' ) && is_multisite() ) {
	// Check network-level setting if available.
	$network_options = get_site_option( 'robotstxt_smtp_network_options', array() );
	$should_delete   = ! empty( $network_options['delete_data_on_uninstall'] );
} else {
	// Check site-level setting.
	$options       = get_option( 'robotstxt_smtp_options', array() );
	$should_delete = ! empty( $options['delete_data_on_uninstall'] );
}

if ( ! $should_delete ) {
	// User wants to preserve data.
	return;
}

// Drop tables for all sites if multisite.
if ( function_exists( 'is_multisite' ) && is_multisite() ) {
	$sites = get_sites( array( 'fields' => 'ids' ) );

	foreach ( $sites as $site_id ) {
		switch_to_blog( $site_id );
		robotstxt_smtp_newsletter_drop_tables();
		restore_current_blog();
	}
} else {
	robotstxt_smtp_newsletter_drop_tables();
}

// Delete plugin options.
delete_option( 'robotstxt_smtp_newsletter_options' );

/**
 * Drop queue and statistics tables.
 *
 * @return void
 */
function robotstxt_smtp_newsletter_drop_tables() {
	global $wpdb;

	$queue_table = $wpdb->prefix . 'robotstxt_smtp_newsletter_queue';
	$stats_table = $wpdb->prefix . 'robotstxt_smtp_newsletter_stats';

	// Drop both tables.
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
	$wpdb->query( "DROP TABLE IF EXISTS {$queue_table}" );

	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching,WordPress.DB.DirectDatabaseQuery.SchemaChange,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
	$wpdb->query( "DROP TABLE IF EXISTS {$stats_table}" );

	// Delete version options.
	delete_option( 'robotstxt_smtp_newsletter_queue_db_version' );
	delete_option( 'robotstxt_smtp_newsletter_stats_db_version' );
}