<?php
/**
 * Core plugin container.
 *
 * @package SiteLangWC
 */

namespace SiteLangWC;

defined( 'ABSPATH' ) || exit;

/**
 * Wires together the plugin services.
 */
final class Plugin {
	/**
	 * Singleton instance.
	 *
	 * @var Plugin|null
	 */
	private static $instance = null;

	/**
	 * Languages service.
	 *
	 * @var Languages
	 */
	public $languages;

	/**
	 * Mapping repository.
	 *
	 * @var Mapping_Repository
	 */
	public $mapping;

	/**
	 * Product review translation service.
	 *
	 * @var Review_Translations
	 */
	public $review_translations;

	/**
	 * OpenAI translator.
	 *
	 * @var OpenAI_Translator
	 */
	public $ai_translator;

	/**
	 * Translation service.
	 *
	 * @var Translation_Service
	 */
	public $translations;

	/**
	 * Router service.
	 *
	 * @var Router
	 */
	public $router;

	/**
	 * Switcher renderer.
	 *
	 * @var Switcher
	 */
	public $switcher;

	/**
	 * SEO service.
	 *
	 * @var SEO
	 */
	public $seo;

	/**
	 * Elementor integration.
	 *
	 * @var Elementor_Integration
	 */
	public $elementor;

	/**
	 * WooCommerce service.
	 *
	 * @var WooCommerce
	 */
	public $woocommerce;

	/**
	 * Merchant feed service.
	 *
	 * @var Merchant_Feed
	 */
	public $merchant_feed;

	/**
	 * XML sitemap service.
	 *
	 * @var Sitemap
	 */
	public $sitemap;

	/**
	 * XLIFF translation exchange service.
	 *
	 * @var XLIFF_Exchange
	 */
	public $xliiff;

	/**
	 * Plans, activation, and managed AI gateway.
	 *
	 * @var License_Manager
	 */
	public $license;

	/** @var Entitlements */
	public $entitlements;

	/** @var Content_Access */
	public $content_access;

	/**
	 * Internal backlink assistant.
	 *
	 * @var Internal_Links
	 */
	public $internal_links;

	/**
	 * Admin service.
	 *
	 * @var Admin
	 */
	public $admin;

	/** @var Manual_Translation_Editor */
	public $manual_editor;

	/**
	 * Get instance.
	 *
	 * @return Plugin
	 */
	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		$this->languages           = new Languages();
		$this->mapping             = new Mapping_Repository();
		$this->license             = new License_Manager( $this->languages );
		$this->entitlements        = new Entitlements( $this->license );
		$this->content_access      = new Content_Access( $this->languages, $this->mapping, $this->entitlements );
		$this->review_translations = new Review_Translations( $this->languages, $this->mapping );
		$this->ai_translator      = new OpenAI_Translator( $this->languages, $this->mapping, $this->review_translations, $this->license );
		$this->translations       = new Translation_Service( $this->languages, $this->mapping );
		$this->router             = new Router( $this->languages, $this->mapping );
		$this->switcher           = new Switcher( $this->languages, $this->mapping, $this->router );
		$this->elementor          = new Elementor_Integration( $this->switcher, $this->languages, $this->mapping, $this->translations, $this->ai_translator );
		$this->seo                = new SEO( $this->languages, $this->mapping, $this->router );
		$this->woocommerce        = new WooCommerce( $this->languages, $this->mapping, $this->translations, $this->router );
		$this->merchant_feed      = new Merchant_Feed( $this->languages, $this->mapping );
		$this->sitemap            = new Sitemap( $this->languages, $this->mapping );
		$this->xliiff             = new XLIFF_Exchange( $this->languages, $this->mapping );
		$this->internal_links     = new Internal_Links( $this->languages, $this->mapping, $this->router, $this->ai_translator );
		$this->admin              = new Admin( $this->languages, $this->mapping, $this->translations, $this->ai_translator, $this->internal_links, $this->review_translations, $this->xliiff );
		$this->manual_editor      = new Manual_Translation_Editor( $this->languages, $this->mapping, $this->translations, $this->ai_translator );
	}

	/**
	 * Register hooks.
	 *
	 * @return void
	 */
	public function init() {
		$this->maybe_run_version_update();

		$this->languages->init();
		$this->license->init();
		$this->entitlements->init();
		$this->content_access->init();
		$this->review_translations->init();
		$this->ai_translator->init();
		$this->router->init();
		$this->switcher->init();
		$this->elementor->init();
		$this->seo->init();
		$this->woocommerce->init();
		$this->merchant_feed->init();
		$this->sitemap->init();
		$this->internal_links->init();
		$this->manual_editor->init();

		if ( is_admin() ) {
			$this->admin->init();
		}
	}

	/**
	 * Run lightweight version updates.
	 *
	 * @return void
	 */
	private function maybe_run_version_update() {
		$stored_version = get_option( 'sitelang_version', '' );
		if ( SITELANG_VERSION === $stored_version ) {
			return;
		}

		// Restored or partially upgraded sites can be missing the mapping table even
		// while the plugin remains active. dbDelta is idempotent and preserves rows.
		Activator::create_tables();

		if ( version_compare( (string) $stored_version, '1.0.15', '<' ) ) {
			$this->translations->repair_translated_product_skus();
		}

		if ( version_compare( (string) $stored_version, '1.0.22', '<' ) ) {
			$this->translations->repair_translated_product_skus();
		}

		if ( version_compare( (string) $stored_version, '1.0.23', '<' ) ) {
			$this->translations->disable_product_data_inheritance_for_existing_translations();
		}
		if ( version_compare( (string) $stored_version, '1.0.47', '<' ) ) {
			// Managed AI is the only supported provider path; remove historical site-held credentials.
			delete_option( 'sitelang_openai_api_key' );
			delete_option( 'sitelang_openai_available_models' );
		}

		update_option( 'sitelang_version', SITELANG_VERSION, false );
		update_option( 'sitelang_rewrite_flush_needed', 1, false );
		update_option( 'sitelang_hard_rewrite_flush_needed', 1, false );
	}
}