<?php
/*
Plugin Name: PixelSync – Pixel & Conversions API for TikTok
Description: TikTok Pixel and Conversions API for WooCommerce, with browser and server event deduplication.
Version: 1.0.0
Author: CompiledLab
Requires Plugins: woocommerce
Requires at least: 6.2
Requires PHP: 8.0
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: pixelsync
*/

// Security: Stop the script if someone tries to access this file directly via URL
if ( ! defined( 'ABSPATH' ) ) exit;

// Define the absolute physical path to this plugin folder (used for PHP includes)
define( 'PXSYNC_PATH', plugin_dir_path( __FILE__ ) );

// Define the public web URL to this plugin folder (used for loading CSS and JS)
define( 'PXSYNC_URL', plugin_dir_url( __FILE__ ) );

define( 'PXSYNC_VERSION', '1.0.0' ); 


/**
 * Load Dependencies
 * Never forget comments: Load the Data Builder FIRST so other classes can use it.
 */
if ( file_exists( PXSYNC_PATH . 'includes/class-payload-data.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-payload-data.php';
}

if ( file_exists( PXSYNC_PATH . 'includes/class-capi.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-capi.php';
}

if ( file_exists( PXSYNC_PATH . 'includes/class-gdpr-hash.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-gdpr-hash.php';
}

if ( file_exists( PXSYNC_PATH . 'includes/class-debug-log.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-debug-log.php';
}

if ( file_exists( PXSYNC_PATH . 'includes/class-installer.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-installer.php';
}

register_activation_hook( __FILE__, [ 'PXSYNC_Installer', 'activate' ] );

// One-time upgrade of data saved under the old tt_/ttb_ names (runs once, then flags itself).
if ( file_exists( PXSYNC_PATH . 'includes/class-migrator.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-migrator.php';
    add_action( 'plugins_loaded', [ 'PXSYNC_Migrator', 'maybe_migrate' ] );
}

/**
 * Load the Admin Logic
 * This handles everything you see in the WordPress dashboard.
 */
if ( file_exists( PXSYNC_PATH . 'includes/class-admin.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-admin.php';
    new PXSYNC_Admin(); // Fire up the admin dashboard logic
}

if ( file_exists( PXSYNC_PATH . 'includes/class-feed.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-feed.php';
    new PXSYNC_Feed(); // Fire up the catalogue feed engine logic
}

/**
 * Load the Tracker Logic
 * This handles the script injection on the front-end of the website.
 */
if ( file_exists( PXSYNC_PATH . 'includes/class-tracker.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-tracker.php';
    new PXSYNC_Tracker(); // Fire up the tracking engine logic
}

/**
 * UTM Capture — Standalone, touches no other plugin code.
 * Captures UTM params from the browser and saves them to order meta
 * using the _pys_utm_* keys expected by the Google Sheets webhook.
 */
if ( file_exists( PXSYNC_PATH . 'includes/class-utm-capture.php' ) ) {
    require_once PXSYNC_PATH . 'includes/class-utm-capture.php';
    new PXSYNC_UTM_Capture();
}


register_activation_hook( __FILE__, 'pxsync_plugin_activate' );
function pxsync_plugin_activate() {
    // Check for WooCommerce dependency
    if ( ! class_exists( 'WooCommerce' ) ) {
        die('This plugin requires WooCommerce to be installed and active.');
    }
}

register_deactivation_hook( __FILE__, 'pxsync_plugin_deactivate' );
function pxsync_plugin_deactivate() {
    // Clear out temporary transients (like the mailbox)
    global $wpdb;
    // Housekeeping of the plugin's own temporary rows; WordPress has no API to delete transients by prefix.
    // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
    $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s", $wpdb->esc_like( '_transient_pxsync_pending_order_' ) . '%' ) );
}