<?php

namespace Blocksy;

class Plugin {
	/**
	 * Blocksy instance.
	 *
	 * Holds the blocksy plugin instance.
	 *
	 * @var Plugin
	 */
	private static $instance = null;

	/**
	 * Blocksy extensions manager.
	 *
	 * @var ExtensionsManager
	 */
	public $extensions = null;
	public $extensions_api = null;
	public $premium = null;

	public $dashboard = null;
	public $theme_integration = null;

	public $cli = null;
	public $cache_manager = null;

	// Features
	public $feat_google_analytics = null;
	public $demo = null;
	public $dynamic_css = null;
	public $header = null;
	public $account_auth = null;

	public $inline_styles_collector = null;

	private $is_blocksy = '__NOT_SET__';
	public $is_blocksy_data = null;
	private $desired_blocksy_version = '2.1.16-dev1';

	private $request_uri = '';

	/**
	 * Instance.
	 *
	 * Ensures only one instance of the plugin class is loaded or can be loaded.
	 *
	 * @static
	 *
	 * @return Plugin An instance of the class.
	 */
	public static function instance() {
		if (is_null(self::$instance)) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	public function init() {
		add_action(
			'customize_controls_enqueue_scripts',
			function () {
				$this->enqueue_static();
			},
			100
		);

		add_action(
			'admin_enqueue_scripts',
			function () {
				$this->enqueue_static();

			},
			50
		);

		$this->cache_manager = new CacheResetManager();

		$this->extensions_api = new ExtensionsManagerApi();
		$this->theme_integration = new ThemeIntegration();
		$this->demo = new DemoInstall();

		new CustomizerOptionsManager();

		new ConditionsManagerAPI();
	}

	public function early_init() {
		if (is_admin()) {
			$this->dashboard = new Dashboard();
		}

		add_action(
			'admin_enqueue_scripts',
			function () {
				wp_enqueue_style(
					'blocksy-styles',
					BLOCKSY_URL . 'static/bundle/options.min.css',
					[],
					blc_get_version()
				);

				$current_screen = get_current_screen();

				// Don't enqueue the script in the root WP dashboard.
				// Sometimes it causes a redirect loop there in some setups.
				if ($current_screen && $current_screen->base === 'dashboard') {
					return;
				}

				$locale_data_ct = blc_get_jed_locale_data('blocksy-companion');

				wp_add_inline_script(
					'wp-i18n',
					'wp.i18n.setLocaleData( ' . wp_json_encode($locale_data_ct) . ', "blocksy-companion" );'
				);
			},
			50
		);
	}

	/**
	 * Init components that need early access to the system.
	 *
	 * @access private
	 */
	public function early_init_with_blocksy_theme() {
		add_filter('blocksy:current-url:request-uri', function () {
			return $this->request_uri;
		});

		if (
			blc_can_use_premium_code()
			&&
			blc_get_capabilities()->has_feature('base_pro')
		) {
			$this->premium = new Premium();
		}

		$this->extensions = new ExtensionsManager();

		$this->header = new HeaderAdditions();

		new Editor\Blocks();

		$this->feat_google_analytics = new GoogleAnalytics();
		new OpenGraphMetaData();
		new SvgHandling();

		$this->account_auth = new AccountAuth();

		if (defined('WP_CLI') && WP_CLI) {
			$this->cli = new Cli();
		}

		$this->dynamic_css = new DynamicCss();
		$this->inline_styles_collector = new InlineStylesCollector();
	}

	/**
	 * Register autoloader.
	 *
	 * Blocksy autoloader loads all the classes needed to run the plugin.
	 *
	 * @access private
	 */
	private function register_autoloader() {
		require_once BLOCKSY_PATH . '/framework/autoload.php';

		Autoloader::run();
	}

	/**
	 * Plugin constructor.
	 *
	 * Initializing Blocksy plugin.
	 *
	 * @access private
	 */
	private function __construct() {
		require_once BLOCKSY_PATH . '/framework/helpers/request.php';
		require_once BLOCKSY_PATH . '/framework/helpers/theme-functions.php';
		require_once BLOCKSY_PATH . '/framework/helpers/helpers.php';
		require_once BLOCKSY_PATH . '/framework/helpers/exts.php';

		// Some plugins override the REQUEST_URI server variable and we need to
		// persist the original value for use within the blocksy_current_url()
		// helper function.
		//
		// Mainly caused by TranslatePress Business SEO pack.
		//
		// Important -- should not be escaped in order to preserve the original
		// value.
		//
		// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
		$this->request_uri = isset($_SERVER['REQUEST_URI']) ? wp_unslash($_SERVER['REQUEST_URI']) : '';

		add_filter(
			'extra_theme_headers',
			function ($extra) {
				$extra[] = 'Blocksy Minimum Companion Version';
				return $extra;
			}
		);

		$this->register_autoloader();

		$this->early_init();

		if (! $this->check_if_blocksy_is_activated()) {
			return;
		}

		$this->early_init_with_blocksy_theme();

		add_action('init', [$this, 'init'], 0);
	}

	public function check_if_blocksy_is_activated() {
		// phpcs:disable WordPress.Security.NonceVerification.Recommended
		add_filter(
			'doing_it_wrong_trigger_error',
			[$this, 'doing_it_wrong_trigger_error']
		);

		$is_cli = defined('WP_CLI') && WP_CLI;

		if ($this->is_blocksy === '__NOT_SET__') {
			$theme = wp_get_theme(get_template());

			if ($theme->parent() && $theme->parent()->exists()) {
				$theme = $theme->parent();
			}

			$is_correct_theme = strpos(
				$theme->get('Name'), 'Blocksy'
			) !== false;

			$is_theme_version_ok = version_compare(
				$theme->get('Version'),
				$this->desired_blocksy_version
			) > -1;

			$is_companion_version_ok = true;

			$maybe_minimum_companion_version = $theme->get('Blocksy Minimum Companion Version');

			if (! empty($maybe_minimum_companion_version)) {
				$is_companion_version_ok = version_compare(
					blc_get_version(),
					$maybe_minimum_companion_version
				) > -1;
			}

			$is_correct_version = (
				$is_theme_version_ok && $is_companion_version_ok
			);

			$another_theme_in_preview = false;

			if (! $is_cli) {
				$maybe_foreign_theme = '';

				// Handle customizer preview iframe and all AJAX requests that
				// are made within the preview.
				if (
					isset($_REQUEST['customize_theme'])
					&&
					! empty($_REQUEST['customize_theme'])
				) {
					// It's important to not sanitize this value here. We need
					// the exact theme slug to compare it with the current one.
					//
					// We will not persist this value anywhere, so it's safe.
					//
					// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
					$maybe_foreign_theme = wp_unslash($_REQUEST['customize_theme']);
				}

				if (
					isset($_REQUEST['wp_theme_preview'])
					&&
					! empty($_REQUEST['wp_theme_preview'])
				) {
					// It's important to not sanitize this value here. We need
					// the exact theme slug to compare it with the current one.
					//
					// We will not persist this value anywhere, so it's safe.
					//
					// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
					$maybe_foreign_theme = sanitize_text_field(wp_unslash($_REQUEST['wp_theme_preview']));
				}

				$server_uri = isset($_SERVER['REQUEST_URI']) ? sanitize_text_field(wp_unslash($_SERVER['REQUEST_URI'])) : '';

				// If previewing a theme in the customizer.
				if (
					isset($_REQUEST['theme'])
					&&
					! empty($_REQUEST['theme'])
					&&
					isset($_SERVER['REQUEST_URI'])
					&&
					strpos(sanitize_text_field(wp_unslash($_SERVER['REQUEST_URI'])), 'customize.php') !== false
				) {
					$maybe_foreign_theme = sanitize_text_field(wp_unslash($_REQUEST['theme']));
				}

				$is_wpappninja = isset($_REQUEST['wpappninja']);

				if (
					isset($_SERVER['HTTP_REFERER'])
					&&
					preg_match('#wpappninja_simul4#', sanitize_text_field(wp_unslash($_SERVER['HTTP_REFERER'])))
				) {
					$is_wpappninja = true;
				}

				// if WPMobile.App plugin is active and we're in the preview
				if ($is_wpappninja && $is_correct_theme) {
					$options = get_option('wpappninja');

					if (! isset($options['wpappninja_main_theme'])) {
						$options['wpappninja_main_theme'] = 'WPMobile.App';
					}

					if ($options['wpappninja_main_theme'] !== 'No theme') {
						$is_correct_theme = false;
					}
				}

				if ($is_correct_theme && $maybe_foreign_theme) {
					$foreign_theme_obj = wp_get_theme($maybe_foreign_theme);

					if ($foreign_theme_obj) {
						if ($foreign_theme_obj->parent()) {
							$foreign_theme_obj = $foreign_theme_obj->parent();
						}

						if (
							$foreign_theme_obj->get_stylesheet() !== $theme->get_stylesheet()
						) {
							$another_theme_in_preview = true;
						}
					}
				}
			}

			if ($is_cli) {
				$cli_config = \WP_CLI::get_config();

				$should_skip_themes_wp_cli = false;

				// Proper way to handle skip-themes
				// https://github.com/wp-cli/wp-cli/blob/a9fabc07adf274274ba6bcc0f0e081f1fab1220b/php/utils-wp.php#L276
				if (isset($cli_config['skip-themes'])) {
					if ($cli_config['skip-themes'] === true) {
						$should_skip_themes_wp_cli = true;
					}

					$skipped_themes_array = $cli_config['skip-themes'];

					if (! is_array($skipped_themes_array)) {
						$skipped_themes_array = explode(',', $skipped_themes_array);
					}

					if (in_array('blocksy', array_filter($skipped_themes_array), true)) {
						$should_skip_themes_wp_cli = true;
					}
				}

				// Companion plugin can't run if themes are skipped in WP CLI
				// config.
				//
				// This happens in cPanel installations.
				// Globally, they skip both themes and plugins.
				// But, for some commands, they enable plugins back with
				// --skip-plugins=false and keep themes disabled.
				// This causes the theme to be skipped and the companion plugin
				// to run, which causes lots of issues in various environments.
				if ($should_skip_themes_wp_cli) {
					$is_correct_theme = false;
					$is_correct_version = false;
				}
			}

			$this->is_blocksy_data = [
				'is_correct_theme' => (
					$is_correct_theme
					&&
					! $another_theme_in_preview
				),
				'is_theme_version_ok' => $is_theme_version_ok,
				'is_companion_version_ok' => $is_companion_version_ok,
				'another_theme_in_preview' => $another_theme_in_preview
			];

			$this->is_blocksy = (
				$is_correct_theme
				&&
				$is_correct_version
				&&
				! $another_theme_in_preview
			);
		}

		remove_filter(
			'doing_it_wrong_trigger_error',
			[$this, 'doing_it_wrong_trigger_error']
		);

		return !!$this->is_blocksy;
		// phpcs:enable WordPress.Security.NonceVerification.Recommended
	}

	public function doing_it_wrong_trigger_error() {
		return false;
	}

	public function enqueue_static() {
		global $wp_customize;

		$deps = ['ct-options-scripts'];

		$current_screen = get_current_screen();

		if ($current_screen && $current_screen->id === 'customize') {
			$deps = ['ct-customizer-controls'];
		}

		wp_enqueue_script(
			'blocksy-admin-scripts',
			BLOCKSY_URL . 'static/bundle/options.js',
			$deps,
			blc_get_version(),
			true
		);

		$localize = array_merge(
			[
				'ajax_url' => admin_url('admin-ajax.php'),
				'rest_url' => get_rest_url(),
			]
		);

		wp_localize_script(
			'blocksy-admin-scripts',
			'blocksy_admin',
			$localize
		);
	}
}

Plugin::instance();

