<?php
/**
 * Uninstall: remove what each power-up stores, per site, unless the merchant chose
 * "Keep data if the plugin is deleted" (System card). Store records the power-ups created or
 * changed (customer accounts, addresses, order statuses and notes) always stay.
 *
 * What gets removed comes from each module's `data()`, the same list its Data section shows.
 *
 * @package AdminPowerups
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

// Below the PHP floor the plugin's classes can't load: leave the data rather than fail the delete.
if ( PHP_VERSION_ID < 80100 ) {
	return;
}

require_once __DIR__ . '/autoload.php';

use SmartWP\AdminPowerups\Modules\Registry;
use SmartWP\AdminPowerups\Settings;
use SmartWP\AdminPowerups\Support\Cleanup;
use SmartWP\AdminPowerups\Support\Jobs;

/**
 * Clean one site. Returns false when the site keeps its data.
 *
 * @return bool
 */
function apwc_uninstall_site() {
	global $wpdb;

	$settings = new Settings();
	if ( function_exists( 'as_unschedule_all_actions' ) ) {
		as_unschedule_all_actions( '', array(), Jobs::GROUP ); // Jobs stop either way: their code is gone.
	}
	if ( $settings->keep_data() ) {
		return false;
	}

	$registry = new Registry( $settings );
	$registry->instantiate();
	// Mark everything off first, so no delete re-creates what it just removed (e.g. the log table).
	foreach ( $settings->enabled_ids() as $id ) {
		$settings->set_enabled( $id, false );
	}
	// Options that belong to a `record` item (store data that stays, like Test data's signing key)
	// are never swept below. A record item names its option in `option`; most have none.
	$keep = array();
	foreach ( $registry->all() as $module ) {
		foreach ( (array) $module->data() as $item ) {
			if ( is_array( $item ) && 'record' === ( $item['kind'] ?? '' ) && isset( $item['option'] ) && is_string( $item['option'] ) && '' !== $item['option'] ) {
				$keep[ $item['option'] ] = true;
			}
		}
		foreach ( $module->data_items() as $item ) {
			Cleanup::purge( $item );
		}
	}

	// Plugin-wide leftovers: every option and transient we own starts with `apwc_` (state, module
	// settings, caches, and anything a delete above re-created because its power-up was on).
	$names = $wpdb->get_col( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
		$wpdb->prepare(
			"SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s OR option_name LIKE %s",
			$wpdb->esc_like( 'apwc_' ) . '%',
			$wpdb->esc_like( '_transient_apwc_' ) . '%',
			$wpdb->esc_like( '_transient_timeout_apwc_' ) . '%'
		)
	);
	foreach ( $names as $name ) {
		if ( ! isset( $keep[ $name ] ) ) {
			delete_option( $name );
		}
	}
	if ( function_exists( 'as_unschedule_all_actions' ) ) {
		as_unschedule_all_actions( '', array(), Jobs::GROUP ); // Jobs still waiting to run.
	}
	return true;
}

$apwc_kept = false;
if ( is_multisite() ) {
	foreach ( get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	) as $apwc_site_id ) {
		switch_to_blog( $apwc_site_id );
		$apwc_kept = ! apwc_uninstall_site() || $apwc_kept;
		restore_current_blog();
	}
} else {
	$apwc_kept = ! apwc_uninstall_site();
}

// User meta is shared by the whole network: only remove the panel theme choice if no site kept its data.
if ( ! $apwc_kept ) {
	delete_metadata( 'user', 0, 'apwc_theme', '', true );
}