<?php
/**
 * Fired when the plugin is uninstalled (deleted via wp-admin).
 * Cleans up options and temporary files created by ABCode Database Exporter.
 *
 * @package ABCode_Database_Exporter
 */

if (!defined('WP_UNINSTALL_PLUGIN')) {
    exit;
}

/**
 * Removes this plugin's data for the current site.
 */
function abcode_dbe_uninstall_site() {
    global $wpdb;

    delete_option('abcode_dbe_last_export');

    // Remove any leftover transients (including the object-cache-less fallback rows).
    // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- One-time cleanup on uninstall, caching not applicable.
    $wpdb->query(
        "DELETE FROM {$wpdb->options}
         WHERE option_name LIKE '_transient_abcode_dbe_%'
            OR option_name LIKE '_transient_timeout_abcode_dbe_%'"
    );

    // Remove temp directory and its contents.
    $upload_dir = wp_upload_dir();
    $tmp_dir    = trailingslashit($upload_dir['basedir']) . 'abcode-dbe-tmp';

    if (!is_dir($tmp_dir)) {
        return;
    }

    // glob() skips dotfiles, so .htaccess is listed explicitly, otherwise the
    // directory is never empty and rmdir() silently fails.
    $files = array_merge(
        glob($tmp_dir . '/*') ?: [],
        [$tmp_dir . '/.htaccess']
    );

    foreach ($files as $file) {
        if (is_file($file)) {
            wp_delete_file($file);
        }
    }

    global $wp_filesystem;
    if (WP_Filesystem()) {
        $wp_filesystem->rmdir($tmp_dir);
    }
}

if (is_multisite()) {
    $abcode_dbe_sites = get_sites(['fields' => 'ids', 'number' => 0]);
    foreach ($abcode_dbe_sites as $abcode_dbe_site_id) {
        switch_to_blog($abcode_dbe_site_id);
        abcode_dbe_uninstall_site();
        restore_current_blog();
    }
} else {
    abcode_dbe_uninstall_site();
}