<?php
/**
 * Plugin Name:       ProfitEngine — Purchasing & Inventory
 * Description:       Modern WooCommerce-native purchasing, inventory planning, supplier management, and real-profit engine. Answers: what to buy, from whom, when, at what cost, and what your real profit is.
 * Version:           1.1.0
 * Requires at least: 6.4
 * Requires PHP:      8.1
 * Author:            Shipon Karmakar
 * Author URI:        https://shiponkarmakar.com
 * License:           GPL-2.0-or-later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain:       profit-engine
 * Domain Path:       /languages
 * Requires Plugins:  woocommerce
 * WC requires at least: 8.0
 * WC tested up to:  11.2
 *
 * @package ProfitEngine
 */

declare( strict_types=1 );

namespace ProfitEngine;

defined( 'ABSPATH' ) || exit;

/*
 * ---------------------------------------------------------------------------
 * Plugin constants
 * ---------------------------------------------------------------------------
 */
define( 'PROFIT_ENGINE_VERSION', '1.1.0' );

// Schema version. Bump when a new migration is added.
define( 'PROFIT_ENGINE_DB_VERSION', 5 );

define( 'PROFIT_ENGINE_PLUGIN_FILE', __FILE__ );
define( 'PROFIT_ENGINE_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
define( 'PROFIT_ENGINE_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
define( 'PROFIT_ENGINE_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );

// Minimum environment requirements.
define( 'PROFIT_ENGINE_MIN_PHP', '8.1' );
define( 'PROFIT_ENGINE_MIN_WP', '6.4' );
define( 'PROFIT_ENGINE_MIN_WC', '8.0' );

/*
 * ---------------------------------------------------------------------------
 * Autoloading
 * ---------------------------------------------------------------------------
 * Prefer Composer's optimized autoloader when present (production builds);
 * fall back to a lightweight PSR-4 autoloader so the plugin runs even before
 * `composer install` has been executed in a dev environment.
 */
if ( is_readable( PROFIT_ENGINE_PLUGIN_DIR . 'vendor/autoload.php' ) ) {
	require PROFIT_ENGINE_PLUGIN_DIR . 'vendor/autoload.php';
} else {
	spl_autoload_register(
		static function ( string $class_name ): void {
			$prefix   = 'ProfitEngine\\';
			$base_dir = PROFIT_ENGINE_PLUGIN_DIR . 'src/';

			$len = strlen( $prefix );
			if ( 0 !== strncmp( $prefix, $class_name, $len ) ) {
				return;
			}

			$relative = substr( $class_name, $len );
			$file     = $base_dir . str_replace( '\\', '/', $relative ) . '.php';

			if ( is_readable( $file ) ) {
				require $file;
			}
		}
	);
}

/*
 * ---------------------------------------------------------------------------
 * Environment guard
 * ---------------------------------------------------------------------------
 * Fail gracefully (admin notice) rather than fataling if the environment is
 * unsupported or WooCommerce is not active.
 */
require_once PROFIT_ENGINE_PLUGIN_DIR . 'src/Infrastructure/Requirements.php';

/*
 * ---------------------------------------------------------------------------
 * HPOS (High-Performance Order Storage) + Cart/Checkout Blocks compatibility
 * ---------------------------------------------------------------------------
 * Declared as early as possible, before WooCommerce initializes.
 */
add_action(
	'before_woocommerce_init',
	static function (): void {
		if ( ! class_exists( \Automattic\WooCommerce\Utilities\FeaturesUtil::class ) ) {
			return;
		}

		\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility(
			'custom_order_tables',
			PROFIT_ENGINE_PLUGIN_FILE,
			true
		);

		\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility(
			'cart_checkout_blocks',
			PROFIT_ENGINE_PLUGIN_FILE,
			true
		);
	}
);

/*
 * ---------------------------------------------------------------------------
 * Activation / Deactivation
 * ---------------------------------------------------------------------------
 */
register_activation_hook(
	PROFIT_ENGINE_PLUGIN_FILE,
	static function (): void {
		require_once PROFIT_ENGINE_PLUGIN_DIR . 'src/Infrastructure/Activator.php';
		Infrastructure\Activator::activate();
	}
);

register_deactivation_hook(
	PROFIT_ENGINE_PLUGIN_FILE,
	static function (): void {
		require_once PROFIT_ENGINE_PLUGIN_DIR . 'src/Infrastructure/Deactivator.php';
		Infrastructure\Deactivator::deactivate();
	}
);

/*
 * ---------------------------------------------------------------------------
 * Bootstrap
 * ---------------------------------------------------------------------------
 * The plugin only boots once WooCommerce and the environment are confirmed OK.
 */
add_action(
	'plugins_loaded',
	static function (): void {
		$requirements = new Infrastructure\Requirements();

		if ( ! $requirements->are_met() ) {
			add_action( 'admin_notices', array( $requirements, 'render_notice' ) );
			return;
		}

		Plugin::instance()->boot();
	},
	20
);