<?php
/**
 * First-run setup wizard (inline in plugin admin).
 *
 * @package C7DBT
 */

defined( 'ABSPATH' ) || exit;

class C7DBT_Setup {

	const COMPLETED_KEY      = 'c7dbt_setup_completed';
	const PAGE_SLUG          = 'c7dbt-setup';
	const REDIRECT_TRANSIENT = 'c7dbt_do_setup_redirect';

	/**
	 * Hooks.
	 */
	public function hooks() {
		add_action( 'admin_init', array( $this, 'maybe_redirect' ) );
		add_action( 'admin_menu', array( $this, 'register_page' ), 20 );
		add_action( 'admin_head', array( $this, 'hide_from_menu' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue' ) );
		add_action( 'wp_ajax_c7dbt_wizard_scan', array( $this, 'ajax_scan' ) );
		add_action( 'wp_ajax_c7dbt_wizard_quick_fix', array( $this, 'ajax_quick_fix' ) );
		add_action( 'wp_ajax_c7dbt_wizard_apply_brand', array( $this, 'ajax_apply_brand' ) );
		add_action( 'wp_ajax_c7dbt_wizard_finish', array( $this, 'ajax_finish' ) );
	}

	/**
	 * One-time redirect after activation.
	 */
	public function maybe_redirect() {
		if ( ! get_transient( self::REDIRECT_TRANSIENT ) ) {
			return;
		}
		if ( get_option( self::COMPLETED_KEY ) ) {
			return;
		}
		if ( wp_doing_ajax() ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
		if ( isset( $_GET['page'] ) && self::PAGE_SLUG === sanitize_key( wp_unslash( $_GET['page'] ) ) ) {
			delete_transient( self::REDIRECT_TRANSIENT );
			return;
		}
		delete_transient( self::REDIRECT_TRANSIENT );
		wp_safe_redirect( admin_url( 'admin.php?page=' . self::PAGE_SLUG ) );
		exit;
	}

	/**
	 * Hidden submenu under the plugin root so it uses normal admin chrome.
	 */
	public function register_page() {
		add_submenu_page(
			'c7dbt',
			__( 'Setup', '7labs-debug-branding-for-commerce7' ),
			__( 'Setup', '7labs-debug-branding-for-commerce7' ),
			'manage_options',
			self::PAGE_SLUG,
			array( $this, 'render_page' )
		);
	}

	/**
	 * Hide Setup from the visible submenu list.
	 */
	public function hide_from_menu() {
		remove_submenu_page( 'c7dbt', self::PAGE_SLUG );
	}

	/**
	 * Assets on the setup screen only.
	 *
	 * @param string $hook Hook.
	 */
	public function enqueue( $hook ) {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$page = isset( $_GET['page'] ) ? sanitize_key( wp_unslash( $_GET['page'] ) ) : '';
		if ( self::PAGE_SLUG !== $page ) {
			return;
		}

		wp_enqueue_style( 'c7dbt-setup', C7DBT_URL . 'admin/css/setup.css', array( 'c7dbt-admin' ), C7DBT_VERSION );
		wp_enqueue_script( 'c7dbt-setup', C7DBT_URL . 'admin/js/setup.js', array(), C7DBT_VERSION, true );
		wp_localize_script(
			'c7dbt-setup',
			'c7dbtSetup',
			array(
				'ajaxUrl'   => admin_url( 'admin-ajax.php' ),
				'nonce'     => wp_create_nonce( 'c7dbt_setup_nonce' ),
				'dashboard' => admin_url( 'admin.php?page=c7dbt' ),
				'version'   => C7DBT_VERSION,
				'slug'      => C7DBT_Helpers::collection_slug(),
			)
		);
	}

	/**
	 * Capability + nonce gate for wizard AJAX.
	 */
	private function assert_wizard_request() {
		check_ajax_referer( 'c7dbt_setup_nonce', 'nonce' );
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( array( 'message' => 'forbidden' ), 403 );
		}
	}

	/**
	 * Shared Quick Fix used by wizard AJAX.
	 *
	 * @param string $slug Collection slug.
	 * @return array
	 */
	public static function run_quick_fix( $slug = '' ) {
		$slug = C7DBT_Helpers::normalize_collection_slug( $slug );
		if ( ! $slug ) {
			$slug = C7DBT_Helpers::collection_slug();
		}
		C7DBT_Settings::update(
			array(
				'default_collection_slug'  => $slug,
				'redirect_collection_root' => 1,
				'update_continue_shopping' => 1,
			)
		);
		$r1 = ( new C7DBT_Shop_Routes() )->apply();
		$r2 = ( new C7DBT_Menu_Scanner() )->fix_all();
		return array(
			'messages' => array_merge(
				isset( $r1['messages'] ) ? $r1['messages'] : array(),
				isset( $r2['messages'] ) ? $r2['messages'] : array()
			),
			'health'   => ( new C7DBT_Health() )->report(),
			'slug'     => $slug,
			'preview'  => home_url( '/collection/' . $slug . '/' ),
		);
	}

	/**
	 * Preset cards for the branding step (safe public fields only).
	 *
	 * @return array
	 */
	public static function preset_cards() {
		$cards = array();
		foreach ( C7DBT_Presets::all() as $key => $preset ) {
			$brand = isset( $preset['brand'] ) && is_array( $preset['brand'] ) ? $preset['brand'] : array();
			$cards[] = array(
				'key'         => $key,
				'label'       => isset( $preset['label'] ) ? $preset['label'] : $key,
				'description' => isset( $preset['description'] ) ? $preset['description'] : '',
				'swatch'      => ! empty( $brand['primary_button_bg'] ) ? $brand['primary_button_bg'] : '#5c1a1b',
				'text'        => ! empty( $brand['primary_button_text_color'] ) ? $brand['primary_button_text_color'] : '#ffffff',
			);
		}
		return $cards;
	}

	/**
	 * AJAX: health scan.
	 */
	public function ajax_scan() {
		$this->assert_wizard_request();
		$health = ( new C7DBT_Health() )->report();
		$slug   = C7DBT_Helpers::collection_slug();
		wp_send_json_success(
			array(
				'health'      => $health,
				'recommended' => C7DBT_Helpers::recommend_package_id( $health ),
				'packages'    => C7DBT_Helpers::service_packages(),
				'presets'     => self::preset_cards(),
				'slug'        => $slug,
				'preview'     => home_url( '/collection/' . $slug . '/' ),
				'guideUrl'    => C7DBT_Helpers::guide_url(),
				'dashboard'   => admin_url( 'admin.php?page=c7dbt' ),
			)
		);
	}

	/**
	 * AJAX: Quick Fix.
	 */
	public function ajax_quick_fix() {
		$this->assert_wizard_request();
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$slug   = isset( $_POST['slug'] ) ? C7DBT_Helpers::normalize_collection_slug( sanitize_text_field( wp_unslash( $_POST['slug'] ) ) ) : '';
		$result = self::run_quick_fix( $slug );
		$result['recommended'] = C7DBT_Helpers::recommend_package_id( $result['health'] );
		$result['packages']    = C7DBT_Helpers::service_packages();
		$result['presets']     = self::preset_cards();
		wp_send_json_success( $result );
	}

	/**
	 * AJAX: apply brand preset.
	 */
	public function ajax_apply_brand() {
		$this->assert_wizard_request();
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$key = isset( $_POST['preset'] ) ? sanitize_key( wp_unslash( $_POST['preset'] ) ) : '';
		if ( ! $key || ! C7DBT_Presets::apply( $key ) ) {
			wp_send_json_error( array( 'message' => 'invalid_preset' ), 400 );
		}
		$health = ( new C7DBT_Health() )->report();
		wp_send_json_success(
			array(
				'preset'      => $key,
				'health'      => $health,
				'recommended' => C7DBT_Helpers::recommend_package_id( $health ),
			)
		);
	}

	/**
	 * AJAX: finish wizard.
	 */
	public function ajax_finish() {
		$this->assert_wizard_request();
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$apply_fixes = ! empty( $_POST['apply_quick_fixes'] );
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$slug = isset( $_POST['slug'] ) ? C7DBT_Helpers::normalize_collection_slug( sanitize_text_field( wp_unslash( $_POST['slug'] ) ) ) : '';
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$preset = isset( $_POST['preset'] ) ? sanitize_key( wp_unslash( $_POST['preset'] ) ) : '';
		// phpcs:ignore WordPress.Security.NonceVerification.Missing
		$frontend_credit = ! empty( $_POST['frontend_credit'] ) ? 1 : 0;

		if ( $apply_fixes ) {
			self::run_quick_fix( $slug );
		}
		if ( $preset ) {
			C7DBT_Presets::apply( $preset );
		}

		C7DBT_Settings::update( array( 'frontend_credit' => $frontend_credit ) );

		update_option( self::COMPLETED_KEY, 1, false );
		delete_transient( self::REDIRECT_TRANSIENT );

		wp_send_json_success(
			array(
				'redirect' => admin_url( 'admin.php?page=c7dbt' ),
			)
		);
	}

	/**
	 * Render inside normal plugin layout.
	 */
	public function render_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		delete_transient( self::REDIRECT_TRANSIENT );

		$page_title = __( 'Setup', '7labs-debug-branding-for-commerce7' );
		$current    = self::PAGE_SLUG;
		$settings   = C7DBT_Settings::get();
		$slug       = C7DBT_Helpers::collection_slug();
		$dashboard  = admin_url( 'admin.php?page=c7dbt' );
		$presets    = self::preset_cards();

		// Ensure admin CSS loads (setup enqueue depends on c7dbt-admin handle).
		wp_enqueue_style(
			'c7dbt-admin',
			C7DBT_URL . 'admin/css/admin.css',
			array( 'wp-color-picker' ),
			C7DBT_VERSION
		);

		include C7DBT_PATH . 'admin/views/layout-header.php';
		include C7DBT_PATH . 'admin/views/setup.php';
		include C7DBT_PATH . 'admin/views/layout-footer.php';
	}
}