<?php
/**
 * Plugin entry point.
 *
 * @package Consentfold
 */

declare(strict_types=1);

namespace Consentfold;

use Consentfold\Admin\BannerRoute;
use Consentfold\Admin\BlockingRoute;
use Consentfold\Admin\Capabilities;
use Consentfold\Admin\ConsentModeRoute;
use Consentfold\Admin\FontsRoute;
use Consentfold\Admin\Health;
use Consentfold\Admin\HealthRoute;
use Consentfold\Admin\ImportRoute;
use Consentfold\Admin\LogRoute;
use Consentfold\Admin\Menu;
use Consentfold\Admin\NavMenu;
use Consentfold\Admin\FreeCopyNotice;
use Consentfold\Admin\Notices;
use Consentfold\Admin\Page;
use Consentfold\Admin\PolicyRoute;
use Consentfold\Admin\Preferences;
use Consentfold\Admin\ScannerRoute;
use Consentfold\Admin\SetupRoute;
use Consentfold\Admin\SiteHealth;
use Consentfold\Blocking\ContentRewriter;
use Consentfold\Blocking\EnqueueRewriter;
use Consentfold\Blocking\Neutraliser;
use Consentfold\Blocking\OutputBufferRewriter;
use Consentfold\Blocking\ServiceRegistry;
use Consentfold\Cli\Commands;
use Consentfold\Cli\ScanCommands;
use Consentfold\Consent\ConsentApiBridge;
use Consentfold\Consent\LogPruner;
use Consentfold\Consent\LogRepository;
use Consentfold\Consent\RateLimiter;
use Consentfold\ConsentMode\GoogleConsentMode;
use Consentfold\ConsentMode\GtmRecipe;
use Consentfold\ConsentMode\Verifier;
use Consentfold\Fonts\GoogleFonts;
use Consentfold\Fonts\HostedFonts;
use Consentfold\Frontend\Assets;
use Consentfold\Frontend\Blocks\CookiePolicy;
use Consentfold\Frontend\Blocks\SettingsLinkBlock;
use Consentfold\Frontend\ConfigBuilder;
use Consentfold\Frontend\ServiceDetails;
use Consentfold\Frontend\SettingsLink;
use Consentfold\I18n\Strings;
use Consentfold\Importers\Complianz;
use Consentfold\Importers\ComplianzStore;
use Consentfold\Importers\CookieYes;
use Consentfold\Importers\CookieYesStore;
use Consentfold\Importers\ImportService;
use Consentfold\Install\Activator;
use Consentfold\Install\Upgrader;
use Consentfold\Privacy\Eraser;
use Consentfold\Privacy\Exporter;
use Consentfold\Rest\PublicConsentController;
use Consentfold\Scanner\Cron as ScanCron;
use Consentfold\Scanner\EnqueueDump;
use Consentfold\Scanner\Inventory;
use Consentfold\Scanner\OptionInspector;
use Consentfold\Scanner\RuntimeCollector;
use Consentfold\Scanner\Sources;
use Consentfold\Scanner\StaticScanner;
use Consentfold\Settings\Repository;

/**
 * Owns the service container and registers hooks. Subsystems add their services in register_services().
 */
final class Plugin {

	/**
	 * Booted instance.
	 *
	 * @var self|null
	 */
	private static ?self $instance = null;

	/**
	 * Service container.
	 *
	 * @var Container
	 */
	private Container $container;

	/**
	 * Boot the plugin once; later calls return the same instance.
	 */
	public static function boot(): self {
		if ( null === self::$instance ) {
			self::$instance = new self( new Container() );
			self::$instance->register_services();
			self::$instance->register_hooks();
		}

		return self::$instance;
	}

	/**
	 * The booted plugin.
	 */
	public static function instance(): self {
		return self::boot();
	}

	/**
	 * Service container.
	 */
	public function container(): Container {
		return $this->container;
	}

	/**
	 * Plugin version.
	 */
	public function version(): string {
		return (string) $this->container->get( 'plugin.version' );
	}

	/**
	 * Constructor.
	 *
	 * @param Container $container Service container.
	 */
	private function __construct( Container $container ) {
		$this->container = $container;
	}

	/**
	 * Register the core services. Later milestones (settings, install, admin, ...) add theirs here.
	 */
	private function register_services(): void {
		$this->container->set(
			'plugin.version',
			static fn (): string => CONSENTFOLD_VERSION
		);
		$this->container->set(
			'plugin.file',
			static fn (): string => CONSENTFOLD_FILE
		);
		$this->container->set(
			'plugin.dir',
			static fn (): string => CONSENTFOLD_DIR
		);
		$this->container->set(
			'plugin.url',
			static fn (): string => CONSENTFOLD_URL
		);
		$this->container->set(
			'settings',
			static fn (): Repository => new Repository()
		);
		$this->container->set(
			'upgrader',
			static fn ( Container $container ): Upgrader => new Upgrader( $container->get( 'settings' ) )
		);
		$this->container->set(
			'activator',
			static fn ( Container $container ): Activator => new Activator( $container->get( 'upgrader' ), $container->get( 'scanner.cron' ) )
		);
		$this->container->set(
			'admin.capabilities',
			static fn (): Capabilities => new Capabilities()
		);
		$this->container->set(
			'admin.page',
			static fn ( Container $container ): Page => new Page( $container->get( 'plugin.dir' ), $container->get( 'plugin.url' ) )
		);
		$this->container->set(
			'admin.menu',
			static fn ( Container $container ): Menu => new Menu( $container->get( 'admin.page' ) )
		);
		$this->container->set(
			'admin.preferences',
			static fn (): Preferences => new Preferences()
		);
		$this->container->set(
			'admin.blocking_route',
			static fn ( Container $container ): BlockingRoute => new BlockingRoute( $container->get( 'settings' ), $container->get( 'blocking.registry' ) )
		);
		$this->container->set(
			'admin.banner_route',
			static fn ( Container $container ): BannerRoute => new BannerRoute( $container->get( 'settings' ), $container->get( 'frontend.config' ), $container->get( 'fonts.hosted' ), $container->get( 'plugin.dir' ), $container->get( 'plugin.url' ), $container->get( 'plugin.version' ) )
		);
		$this->container->set(
			'admin.fonts_route',
			static fn ( Container $container ): FontsRoute => new FontsRoute( $container->get( 'fonts.catalog' ), $container->get( 'fonts.hosted' ) )
		);
		$this->container->set(
			'fonts.catalog',
			static fn ( Container $container ): GoogleFonts => new GoogleFonts( $container->get( 'plugin.dir' ) . 'data/google-fonts.json' )
		);
		$this->container->set(
			'fonts.hosted',
			static fn ( Container $container ): HostedFonts => new HostedFonts( $container->get( 'fonts.catalog' ) )
		);
		$this->container->set(
			'admin.consent_mode_route',
			static fn ( Container $container ): ConsentModeRoute => new ConsentModeRoute( $container->get( 'settings' ), $container->get( 'consent.api_bridge' ) )
		);
		$this->container->set(
			'admin.log_route',
			static fn ( Container $container ): LogRoute => new LogRoute( $container->get( 'settings' ), $container->get( 'consent.log' ) )
		);
		$this->container->set(
			'blocking.registry',
			static fn ( Container $container ): ServiceRegistry => new ServiceRegistry( $container->get( 'settings' ), $container->get( 'plugin.dir' ) . 'data/services.json' )
		);
		$this->container->set(
			'blocking.neutraliser',
			static fn ( Container $container ): Neutraliser => new Neutraliser( $container->get( 'blocking.registry' ), $container->get( 'settings' ) )
		);
		$this->container->set(
			'blocking.enqueue_rewriter',
			static fn ( Container $container ): EnqueueRewriter => new EnqueueRewriter( $container->get( 'blocking.neutraliser' ) )
		);
		$this->container->set(
			'blocking.content_rewriter',
			static fn ( Container $container ): ContentRewriter => new ContentRewriter( $container->get( 'blocking.neutraliser' ) )
		);
		$this->container->set(
			'blocking.ob_rewriter',
			static fn ( Container $container ): OutputBufferRewriter => new OutputBufferRewriter( $container->get( 'blocking.neutraliser' ) )
		);
		$this->container->set(
			'consent_mode.google',
			static fn ( Container $container ): GoogleConsentMode => new GoogleConsentMode(
				$container->get( 'settings' ),
				$container->get( 'blocking.registry' ),
				$container->get( 'plugin.dir' ) . 'data/regions.json',
				static fn (): array => $container->get( 'frontend.config' )->build()
			)
		);
		$this->container->set(
			'consent_mode.gtm_recipe',
			static fn ( Container $container ): GtmRecipe => new GtmRecipe( $container->get( 'plugin.dir' ) . 'data/gtm-recipe.json' )
		);
		$this->container->set(
			'consent_mode.verifier',
			static fn ( Container $container ): Verifier => new Verifier( $container->get( 'plugin.dir' ), $container->get( 'plugin.url' ), $container->get( 'plugin.version' ) )
		);
		$this->container->set(
			'consent.api_bridge',
			static fn ( Container $container ): ConsentApiBridge => new ConsentApiBridge( $container->get( 'settings' ), plugin_basename( $container->get( 'plugin.file' ) ) )
		);
		$this->container->set(
			'consent.log',
			static fn (): LogRepository => new LogRepository()
		);
		$this->container->set(
			'consent.pruner',
			static fn ( Container $container ): LogPruner => new LogPruner( $container->get( 'settings' ), $container->get( 'consent.log' ) )
		);
		$this->container->set(
			'scanner.sources',
			static fn ( Container $container ): Sources => new Sources( $container->get( 'plugin.dir' ) )
		);
		$this->container->set(
			'scanner.inventory',
			static fn ( Container $container ): Inventory => new Inventory( $container->get( 'blocking.registry' ), $container->get( 'scanner.runtime' ) )
		);
		$this->container->set(
			'scanner.runtime',
			static fn ( Container $container ): RuntimeCollector => new RuntimeCollector(
				$container->get( 'settings' ),
				$container->get( 'blocking.registry' ),
				$container->get( 'plugin.dir' ) . 'data/common-hosts.json',
				$container->get( 'plugin.dir' ),
				$container->get( 'plugin.url' ),
				$container->get( 'plugin.version' )
			)
		);
		$this->container->set(
			'scanner.dump',
			static fn (): EnqueueDump => new EnqueueDump()
		);
		$this->container->set(
			'scanner.static',
			static fn ( Container $container ): StaticScanner => new StaticScanner(
				$container->get( 'blocking.registry' ),
				$container->get( 'settings' ),
				$container->get( 'scanner.inventory' ),
				new OptionInspector(),
				array( $container->get( 'scanner.sources' ), 'units' ),
				$container->get( 'plugin.dir' ) . 'data/common-hosts.json',
				array( $container->get( 'scanner.dump' ), 'request' )
			)
		);
		$this->container->set(
			'admin.scanner_route',
			static fn ( Container $container ): ScannerRoute => new ScannerRoute( $container->get( 'settings' ), $container->get( 'scanner.static' ), $container->get( 'scanner.inventory' ) )
		);
		$this->container->set(
			'admin.policy_route',
			static fn ( Container $container ): PolicyRoute => new PolicyRoute( $container->get( 'settings' ) )
		);
		$this->container->set(
			'importers.service',
			static fn ( Container $container ): ImportService => new ImportService( $container->get( 'settings' ), new CookieYes( new CookieYesStore() ), new Complianz( new ComplianzStore() ) )
		);
		$this->container->set(
			'admin.import_route',
			static fn ( Container $container ): ImportRoute => new ImportRoute( $container->get( 'settings' ), $container->get( 'importers.service' ) )
		);
		$this->container->set(
			'admin.setup_route',
			static fn (): SetupRoute => new SetupRoute()
		);
		$this->container->set(
			'admin.health',
			static fn ( Container $container ): Health => new Health( $container->get( 'settings' ), $container->get( 'consent.api_bridge' ), $container->get( 'plugin.dir' ) )
		);
		$this->container->set(
			'admin.health_route',
			static fn ( Container $container ): HealthRoute => new HealthRoute( $container->get( 'admin.health' ) )
		);
		$this->container->set(
			'admin.site_health',
			static fn ( Container $container ): SiteHealth => new SiteHealth( $container->get( 'admin.health' ) )
		);
		$this->container->set(
			'admin.notices',
			static fn ( Container $container ): Notices => new Notices( $container->get( 'admin.health' ) )
		);
		$this->container->set(
			'admin.free_copy_notice',
			static fn (): FreeCopyNotice => new FreeCopyNotice( consentfold_fs()->get_slug() . '/' . basename( CONSENTFOLD_FILE ), consentfold_fs()->premium_plugin_basename() )
		);
		$this->container->set(
			'scanner.cron',
			static fn ( Container $container ): ScanCron => new ScanCron( $container->get( 'scanner.static' ) )
		);
		$this->container->set(
			'privacy.exporter',
			static fn ( Container $container ): Exporter => new Exporter( $container->get( 'consent.log' ) )
		);
		$this->container->set(
			'privacy.eraser',
			static fn ( Container $container ): Eraser => new Eraser( $container->get( 'consent.log' ) )
		);
		$this->container->set(
			'cli.commands',
			static fn ( Container $container ): Commands => new Commands( $container->get( 'consent.log' ), $container->get( 'consent.pruner' ) )
		);
		$this->container->set(
			'cli.scan_commands',
			static fn ( Container $container ): ScanCommands => new ScanCommands( $container->get( 'scanner.static' ), $container->get( 'scanner.inventory' ) )
		);
		$this->container->set(
			'rest.public_consent',
			static fn ( Container $container ): PublicConsentController => new PublicConsentController( $container->get( 'settings' ), $container->get( 'consent.log' ), new RateLimiter() )
		);
		$this->container->set(
			'frontend.details',
			static fn ( Container $container ): ServiceDetails => new ServiceDetails( $container->get( 'settings' ), $container->get( 'blocking.registry' ), $container->get( 'plugin.version' ) )
		);
		$this->container->set(
			'frontend.config',
			static fn ( Container $container ): ConfigBuilder => new ConfigBuilder(
				$container->get( 'settings' ),
				$container->get( 'blocking.registry' ),
				$container->get( 'frontend.details' ),
				$container->get( 'consent_mode.google' ),
				$container->get( 'consent.api_bridge' ),
				$container->get( 'plugin.version' )
			)
		);
		$this->container->set(
			'frontend.settings_link',
			static fn (): SettingsLink => new SettingsLink()
		);
		$this->container->set(
			'frontend.cookie_policy',
			static fn ( Container $container ): CookiePolicy => new CookiePolicy(
				$container->get( 'settings' ),
				$container->get( 'scanner.inventory' ),
				$container->get( 'blocking.registry' ),
				$container->get( 'plugin.dir' ),
				$container->get( 'plugin.url' )
			)
		);
		$this->container->set(
			'frontend.settings_link_block',
			static fn ( Container $container ): SettingsLinkBlock => new SettingsLinkBlock( $container->get( 'plugin.dir' ) )
		);
		$this->container->set(
			'admin.nav_menu',
			static fn (): NavMenu => new NavMenu()
		);
		$this->container->set(
			'i18n.strings',
			static fn ( Container $container ): Strings => new Strings( $container->get( 'settings' ) )
		);
		$this->container->set(
			'frontend.assets',
			static fn ( Container $container ): Assets => new Assets(
				$container->get( 'frontend.config' ),
				$container->get( 'plugin.dir' ),
				$container->get( 'plugin.url' ),
				$container->get( 'plugin.version' ),
				$container->get( 'fonts.hosted' )
			)
		);
	}

	/**
	 * Hook the plugin into WordPress. Later milestones register theirs here.
	 */
	private function register_hooks(): void {
		$this->container->get( 'activator' )->register( CONSENTFOLD_FILE );
		// Picks up schema changes shipped by a plugin update, which does not trigger activation.
		add_action( 'plugins_loaded', array( $this->container->get( 'upgrader' ), 'maybe_run' ) );
		$this->container->get( 'admin.capabilities' )->register();

		// Both only act on admin requests: `admin_menu` and `admin_enqueue_scripts` never fire elsewhere.
		$this->container->get( 'admin.menu' )->register();
		$this->container->get( 'admin.page' )->register();
		$this->container->get( 'admin.preferences' )->register();
		$this->container->get( 'admin.blocking_route' )->register();
		$this->container->get( 'admin.banner_route' )->register();
		$this->container->get( 'admin.fonts_route' )->register();
		$this->container->get( 'admin.consent_mode_route' )->register();
		$this->container->get( 'admin.log_route' )->register();
		$this->container->get( 'admin.scanner_route' )->register();
		$this->container->get( 'admin.policy_route' )->register();
		$this->container->get( 'admin.import_route' )->register();
		$this->container->get( 'admin.setup_route' )->register();
		$this->container->get( 'admin.health' )->register();
		$this->container->get( 'admin.health_route' )->register();
		$this->container->get( 'admin.site_health' )->register();
		$this->container->get( 'admin.notices' )->register();
		$this->container->get( 'admin.free_copy_notice' )->register();

		$this->container->get( 'blocking.registry' )->register();
		// The rewriters leave admin requests alone; the neutraliser checks.
		$this->container->get( 'blocking.enqueue_rewriter' )->register();
		$this->container->get( 'blocking.content_rewriter' )->register();
		$this->container->get( 'blocking.ob_rewriter' )->register();

		// Registered before the assets so that, at the same `wp_head` priority, the default comes first.
		$this->container->get( 'consent_mode.google' )->register();
		$this->container->get( 'consent_mode.gtm_recipe' )->register();
		$this->container->get( 'consent_mode.verifier' )->register();

		$this->container->get( 'consent.api_bridge' )->register();

		// The route answers REST requests, which load no front-end hooks.
		$this->container->get( 'rest.public_consent' )->register();
		$this->container->get( 'consent.pruner' )->register();
		$this->container->get( 'privacy.exporter' )->register();
		$this->container->get( 'privacy.eraser' )->register();
		$this->container->get( 'cli.commands' )->register();
		$this->container->get( 'cli.scan_commands' )->register();
		$this->container->get( 'scanner.cron' )->register();
		$this->container->get( 'scanner.inventory' )->register();
		// Answers the scan's own request for the registered scripts; front-end requests only.
		$this->container->get( 'scanner.dump' )->register();
		// The route answers REST requests, which load no front-end hooks; the script is for managers' front-end visits.
		$this->container->get( 'scanner.runtime' )->register();

		// The assets hook `wp_enqueue_scripts` and `wp_head`, which fire on the front end only.
		$this->container->get( 'frontend.config' )->register();
		// The route answers REST requests, which load no front-end hooks.
		$this->container->get( 'frontend.details' )->register();
		$this->container->get( 'frontend.assets' )->register();
		$this->container->get( 'frontend.settings_link' )->register();
		// Registered on `init`, which also runs for the editor and the REST requests that render the block.
		$this->container->get( 'frontend.cookie_policy' )->register();
		$this->container->get( 'frontend.settings_link_block' )->register();
		$this->container->get( 'admin.nav_menu' )->register();
		$this->container->get( 'i18n.strings' )->register();

		/**
		 * Fires once the plugin has registered its hooks, for add-on code to attach to.
		 *
		 * @param Container $container Service container.
		 */
		do_action( 'consentfold_loaded', $this->container );
	}
}