<?php
/**
 * Fired when the plugin is deleted from the WordPress admin.
 *
 * Removes every option this plugin created, including the stored access token.
 * Deleting the plugin should not leave a live credential behind in the
 * database — on any site of a multisite network, not just the main one, since
 * each site that was connected stored its own key.
 *
 * This intentionally does NOT call the Agentency API to release the site's
 * allowlist entry: uninstall runs without a guaranteed network or a
 * predictable time budget, and a hung HTTP call here would break the delete.
 * The Disconnect button on the settings screen is the path that releases the
 * entry server-side, and the dashboard's "Installed sites" table lets the
 * owner remove a stale one at any time.
 *
 * The plugin's classes are not loaded during uninstall, so the option, meta
 * and transient names are repeated here as literals.
 *
 * @package Agentency_Chatbot
 */

defined( 'WP_UNINSTALL_PLUGIN' ) || exit;

/**
 * Remove this plugin's per-site state from the current site.
 *
 * The flash transient is per user and lives one minute; the current admin's
 * is removed here and any other expires on its own, cleared by core's
 * expired-transient cleanup.
 *
 * @return void
 */
function agentency_chatbot_uninstall_site() {
	delete_option( 'agentency_chatbot_api_key' );
	delete_option( 'agentency_chatbot_connection' );
	delete_option( 'agentency_chatbot_settings' );
	delete_transient( 'agentency_chatbot_list' );
	delete_transient( 'agentency_chatbot_flash_' . get_current_user_id() );

	wp_clear_scheduled_hook( 'agentency_chatbot_heartbeat' );
}

/**
 * Remove this plugin's state everywhere it may exist.
 *
 * Plugin deletion is network-wide on multisite, so every site is visited.
 * `number => 0` lifts `get_sites()`'s default cap of 100. User meta lives in
 * the network-wide users tables, so the notice flag is cleared once, for all
 * users.
 *
 * @return void
 */
function agentency_chatbot_uninstall() {
	if ( is_multisite() ) {
		$site_ids = get_sites(
			array(
				'fields' => 'ids',
				'number' => 0,
			)
		);
		foreach ( $site_ids as $site_id ) {
			switch_to_blog( (int) $site_id );
			agentency_chatbot_uninstall_site();
			restore_current_blog();
		}
	} else {
		agentency_chatbot_uninstall_site();
	}

	delete_metadata( 'user', 0, 'agentency_chatbot_notice_dismissed', '', true );
}

agentency_chatbot_uninstall();