<?php
/**
 * Main plugin bootstrap.
 *
 * @package PluginBrewery\AdClickTracking
 */

namespace PluginBrewery\AdClickTracking;

use PluginBrewery\AdClickTracking\Adapters\Gravity_Forms_Adapter;

defined( 'ABSPATH' ) || exit;

require_once __DIR__ . '/class-constants.php';
require_once __DIR__ . '/class-assets.php';
require_once __DIR__ . '/class-upsell.php';
require_once __DIR__ . '/class-admin.php';
require_once __DIR__ . '/adapters/interface-form-adapter.php';
require_once __DIR__ . '/adapters/class-gravity-forms-adapter.php';

/**
 * Wires the capture script, the Gravity Forms adapter and the admin UI.
 */
class Plugin {

	/**
	 * Registers the adapter, assets and admin UI.
	 *
	 * Assets are only registered while the adapter is available: when it stands
	 * down (Gravity Forms inactive, or the paid referral tracker handles
	 * capture), no fields are injected, so the capture script and its cookies
	 * would have no consumer.
	 */
	public function boot(): void {
		$adapter = new Gravity_Forms_Adapter();
		if ( $adapter->is_available() ) {
			$adapter->register_hooks();
			( new Assets() )->register();
		}

		if ( is_admin() ) {
			( new Admin() )->register();
		}
	}

	/**
	 * Seeds the default option on activation (network-aware).
	 *
	 * @param bool $network_wide Whether the plugin was activated network-wide.
	 */
	public static function activation_hook( $network_wide = false ): void {
		if ( $network_wide && is_multisite() ) {
			$site_ids = get_sites( array( 'fields' => 'ids' ) );
			foreach ( (array) $site_ids as $blog_id ) {
				switch_to_blog( (int) $blog_id );
				add_option( Constants::DEFAULT_ENABLED_OPTION, 0 );
				restore_current_blog();
			}
			return;
		}

		add_option( Constants::DEFAULT_ENABLED_OPTION, 0 );
	}

	/**
	 * Ensures new multisite sites start with tracking disabled by default.
	 *
	 * @param \WP_Site $new_site The newly created site object.
	 */
	public static function handle_initialize_site( $new_site ): void {
		if ( ! is_multisite() ) {
			return;
		}
		$blog_id = is_object( $new_site ) && isset( $new_site->blog_id ) ? (int) $new_site->blog_id : 0;
		if ( $blog_id <= 0 ) {
			return;
		}
		switch_to_blog( $blog_id );
		add_option( Constants::DEFAULT_ENABLED_OPTION, 0 );
		restore_current_blog();
	}

	/**
	 * Removes the plugin's options and cache on full uninstall (network-aware).
	 */
	public static function uninstall_hook(): void {
		if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
			return;
		}

		if ( is_multisite() ) {
			$site_ids = get_sites( array( 'fields' => 'ids' ) );
			foreach ( (array) $site_ids as $blog_id ) {
				switch_to_blog( (int) $blog_id );
				self::delete_site_data();
				restore_current_blog();
			}
			return;
		}

		self::delete_site_data();
	}

	/**
	 * Deletes the plugin's options and cached count for the current site.
	 */
	private static function delete_site_data(): void {
		delete_option( Constants::DEFAULT_ENABLED_OPTION );
		delete_option( Constants::ATTRIBUTION_OPTION );
		delete_transient( Admin::COUNT_TRANSIENT );
	}

	/**
	 * Returns whether a plugin is active; safe to call on the front end too.
	 *
	 * @param string $plugin Plugin basename, e.g. "foo/foo.php".
	 */
	public static function is_plugin_active_safe( string $plugin ): bool {
		if ( ! function_exists( 'is_plugin_active' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}
		return is_plugin_active( $plugin );
	}
}