<?php
/**
 * AI-Ready WP Setup Wizard + Review Notice.
 *
 * First-run onboarding: after activation the admin is guided through the two
 * things that actually make the AI discovery files useful — business details
 * and an industry preset — then lands on a "you're AI-ready" screen with a link
 * to the readiness score. A single, dismissible review request appears a week
 * later (WordPress.org guideline-friendly: one ask, easy to dismiss).
 *
 * Server-side steps only (no build step); the wizard page is hidden from the
 * menu but reachable by URL.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class AIREWP_Setup {

	const PAGE          = 'ai-ready-wp-setup';
	const DONE_OPTION   = 'airewp_setup_completed_at';
	const REVIEW_OPTION = 'airewp_review_dismissed';
	const REDIRECT_KEY  = 'airewp_activation_redirect';
	const REVIEW_DELAY  = 604800; // 7 days.

	public static function init(): void {
		$self = new self();
		add_action( 'admin_menu', [ $self, 'register_page' ] );
		add_action( 'admin_init', [ $self, 'maybe_redirect_after_activation' ] );
		add_action( 'admin_init', [ $self, 'handle_step' ] );
		add_action( 'admin_notices', [ $self, 'review_notice' ] );
		add_action( 'admin_init', [ $self, 'handle_review_dismiss' ] );
		add_action( 'admin_head', [ $self, 'silence_notices_on_wizard' ] );
	}

	public static function flag_activation(): void {
		set_transient( self::REDIRECT_KEY, 1, 60 );
	}

	private function industries(): array {
		return [
			'general'      => __( 'General Business', 'ai-ready-wp' ),
			'restaurant'   => __( 'Restaurant / Gastronomy', 'ai-ready-wp' ),
			'real-estate'  => __( 'Real Estate', 'ai-ready-wp' ),
			'ecommerce'    => __( 'E-Commerce / Shop', 'ai-ready-wp' ),
			'saas'         => __( 'SaaS / Software', 'ai-ready-wp' ),
			'agency'       => __( 'Agency / Consulting', 'ai-ready-wp' ),
			'medical'      => __( 'Medical / Health', 'ai-ready-wp' ),
			'legal'        => __( 'Legal / Law Firm', 'ai-ready-wp' ),
			'finance'      => __( 'Finance / Insurance', 'ai-ready-wp' ),
			'education'    => __( 'Education / Training', 'ai-ready-wp' ),
			'construction' => __( 'Construction / Trades', 'ai-ready-wp' ),
			'fitness'      => __( 'Fitness / Sports', 'ai-ready-wp' ),
			'beauty'       => __( 'Beauty / Wellness', 'ai-ready-wp' ),
			'automotive'   => __( 'Automotive', 'ai-ready-wp' ),
			'hotel'        => __( 'Hotel / Hospitality', 'ai-ready-wp' ),
			'nonprofit'    => __( 'Nonprofit / Association', 'ai-ready-wp' ),
		];
	}

	// ─── Hidden wizard page ─────────────────────────────────

	public function register_page(): void {
		$hook = add_submenu_page(
			'options.php',
			__( 'AI-Ready Setup', 'ai-ready-wp' ),
			__( 'AI-Ready Setup', 'ai-ready-wp' ),
			'manage_options',
			self::PAGE,
			[ $this, 'render' ]
		);
		if ( $hook ) {
			add_action( 'admin_print_styles-' . $hook, [ $this, 'print_styles' ] );
		}
	}

	private function wizard_url( int $step = 1 ): string {
		return add_query_arg(
			[ 'page' => self::PAGE, 'step' => $step ],
			admin_url( 'admin.php' )
		);
	}

	public function silence_notices_on_wizard(): void {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only page check.
		if ( ! isset( $_GET['page'] ) || self::PAGE !== $_GET['page'] ) {
			return;
		}
		remove_all_actions( 'admin_notices' );
		remove_all_actions( 'all_admin_notices' );
	}

	// ─── Activation redirect (bulk-safe) ────────────────────

	public function maybe_redirect_after_activation(): void {
		if ( ! get_transient( self::REDIRECT_KEY ) ) {
			return;
		}
		delete_transient( self::REDIRECT_KEY );
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only guard against bulk activation.
		if ( isset( $_GET['activate-multi'] ) || is_network_admin() || wp_doing_ajax() ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		wp_safe_redirect( $this->wizard_url( 1 ) );
		exit;
	}

	// ─── Step handling ──────────────────────────────────────

	public function handle_step(): void {
		// phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce verified below.
		if ( empty( $_POST['airewp_setup_step'] ) ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		check_admin_referer( 'airewp_setup' );

		$step     = sanitize_text_field( wp_unslash( $_POST['airewp_setup_step'] ) );
		$settings = AI_Ready_WP::get_settings();

		if ( 'business' === $step ) {
			$settings['company_name']  = isset( $_POST['airewp_company_name'] ) ? sanitize_text_field( wp_unslash( $_POST['airewp_company_name'] ) ) : $settings['company_name'];
			$settings['company_desc']  = isset( $_POST['airewp_company_desc'] ) ? sanitize_textarea_field( wp_unslash( $_POST['airewp_company_desc'] ) ) : $settings['company_desc'];
			$settings['company_email'] = isset( $_POST['airewp_company_email'] ) ? sanitize_email( wp_unslash( $_POST['airewp_company_email'] ) ) : $settings['company_email'];
			$settings['services']      = isset( $_POST['airewp_services'] ) ? sanitize_text_field( wp_unslash( $_POST['airewp_services'] ) ) : $settings['services'];
			update_option( AIREWP_OPTION_KEY, $settings );
			wp_safe_redirect( $this->wizard_url( 3 ) );
			exit;
		}

		if ( 'industry' === $step ) {
			$industry = isset( $_POST['airewp_industry'] ) ? sanitize_text_field( wp_unslash( $_POST['airewp_industry'] ) ) : 'general';
			$settings['industry']    = array_key_exists( $industry, $this->industries() ) ? $industry : 'general';
			$schema                  = isset( $_POST['airewp_schema_type'] ) ? sanitize_text_field( wp_unslash( $_POST['airewp_schema_type'] ) ) : 'Organization';
			$settings['schema_type'] = in_array( $schema, [ 'Organization', 'LocalBusiness' ], true ) ? $schema : 'Organization';
			update_option( AIREWP_OPTION_KEY, $settings );
			update_option( self::DONE_OPTION, time() );
			wp_safe_redirect( $this->wizard_url( 4 ) );
			exit;
		}
	}

	// ─── Render ─────────────────────────────────────────────

	public function render(): void {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- display selector only.
		$step = isset( $_GET['step'] ) ? (int) $_GET['step'] : 1;
		$step = max( 1, min( 4, $step ) );

		echo '<div class="wrap airewp-setup"><div class="airewp-setup-card">';
		$this->render_header( $step );
		switch ( $step ) {
			case 1:
				$this->step_welcome();
				break;
			case 2:
				$this->step_business();
				break;
			case 3:
				$this->step_industry();
				break;
			case 4:
				$this->step_done();
				break;
		}
		echo '</div></div>';
	}

	private function render_header( int $step ): void {
		$labels = [
			1 => __( 'Welcome', 'ai-ready-wp' ),
			2 => __( 'Business', 'ai-ready-wp' ),
			3 => __( 'Industry', 'ai-ready-wp' ),
			4 => __( 'Done', 'ai-ready-wp' ),
		];
		echo '<h1 class="airewp-setup-title">' . esc_html__( 'AI-Ready WP Setup', 'ai-ready-wp' ) . '</h1>';
		echo '<ol class="airewp-steps">';
		foreach ( $labels as $n => $label ) {
			$class = $n < $step ? 'done' : ( $n === $step ? 'active' : '' );
			echo '<li class="' . esc_attr( $class ) . '"><span>' . (int) $n . '</span>' . esc_html( $label ) . '</li>';
		}
		echo '</ol>';
	}

	private function step_welcome(): void {
		echo '<p class="airewp-lead">' . esc_html__( 'Make your site discoverable by AI agents and search engines. Two quick steps and everything generates automatically.', 'ai-ready-wp' ) . '</p>';
		echo '<ul class="airewp-bullets">';
		echo '<li>' . esc_html__( 'agents.json, agent-card.json and llms.txt for AI agents', 'ai-ready-wp' ) . '</li>';
		echo '<li>' . esc_html__( 'JSON-LD structured data + a full SEO module', 'ai-ready-wp' ) . '</li>';
		echo '<li>' . esc_html__( 'Everything keeps itself up to date', 'ai-ready-wp' ) . '</li>';
		echo '</ul>';
		echo '<p><a class="button button-primary button-hero" href="' . esc_url( $this->wizard_url( 2 ) ) . '">' . esc_html__( 'Get Started', 'ai-ready-wp' ) . '</a></p>';
	}

	private function step_business(): void {
		$s = AI_Ready_WP::get_settings();
		echo '<p class="airewp-lead">' . esc_html__( 'Tell AI agents who you are. This fills your discovery files and schema.', 'ai-ready-wp' ) . '</p>';
		echo '<form method="post" class="airewp-form">';
		wp_nonce_field( 'airewp_setup' );
		echo '<input type="hidden" name="airewp_setup_step" value="business" />';

		echo '<label class="airewp-label">' . esc_html__( 'Business name', 'ai-ready-wp' ) . '</label>';
		echo '<input type="text" name="airewp_company_name" class="regular-text" value="' . esc_attr( $s['company_name'] ) . '" />';

		echo '<label class="airewp-label">' . esc_html__( 'Short description', 'ai-ready-wp' ) . '</label>';
		echo '<textarea name="airewp_company_desc" class="large-text" rows="2">' . esc_textarea( $s['company_desc'] ) . '</textarea>';

		echo '<label class="airewp-label">' . esc_html__( 'Contact email', 'ai-ready-wp' ) . '</label>';
		echo '<input type="email" name="airewp_company_email" class="regular-text" value="' . esc_attr( $s['company_email'] ) . '" />';

		echo '<label class="airewp-label">' . esc_html__( 'Main services (comma-separated)', 'ai-ready-wp' ) . '</label>';
		echo '<input type="text" name="airewp_services" class="large-text" value="' . esc_attr( $s['services'] ) . '" placeholder="' . esc_attr__( 'e.g. Web Design, SEO, Consulting', 'ai-ready-wp' ) . '" />';

		echo '<p><button type="submit" class="button button-primary">' . esc_html__( 'Continue', 'ai-ready-wp' ) . '</button></p>';
		echo '</form>';
	}

	private function step_industry(): void {
		$s = AI_Ready_WP::get_settings();
		echo '<p class="airewp-lead">' . esc_html__( 'Pick your industry so agents get the right context, and choose how you appear in structured data.', 'ai-ready-wp' ) . '</p>';
		echo '<form method="post" class="airewp-form">';
		wp_nonce_field( 'airewp_setup' );
		echo '<input type="hidden" name="airewp_setup_step" value="industry" />';

		echo '<label class="airewp-label">' . esc_html__( 'Industry', 'ai-ready-wp' ) . '</label>';
		echo '<select name="airewp_industry" class="regular-text">';
		foreach ( $this->industries() as $key => $label ) {
			echo '<option value="' . esc_attr( $key ) . '" ' . selected( $s['industry'], $key, false ) . '>' . esc_html( $label ) . '</option>';
		}
		echo '</select>';

		echo '<label class="airewp-label">' . esc_html__( 'How should you appear?', 'ai-ready-wp' ) . '</label>';
		echo '<label class="airewp-radio"><input type="radio" name="airewp_schema_type" value="Organization" ' . checked( $s['schema_type'], 'Organization', false ) . ' /> ' . esc_html__( 'Organization (company, brand)', 'ai-ready-wp' ) . '</label>';
		echo '<label class="airewp-radio"><input type="radio" name="airewp_schema_type" value="LocalBusiness" ' . checked( $s['schema_type'], 'LocalBusiness', false ) . ' /> ' . esc_html__( 'Local Business (physical location)', 'ai-ready-wp' ) . '</label>';

		echo '<p><button type="submit" class="button button-primary">' . esc_html__( 'Finish', 'ai-ready-wp' ) . '</button></p>';
		echo '</form>';
	}

	private function step_done(): void {
		// Completion is recorded in the nonce-verified 'industry' POST handler.
		echo '<p class="airewp-lead">' . esc_html__( 'Your site is AI-ready! Your discovery files and schema are live and will keep themselves updated.', 'ai-ready-wp' ) . '</p>';
		echo '<p class="airewp-actions">';
		echo '<a class="button button-primary" href="' . esc_url( admin_url( 'index.php' ) ) . '">' . esc_html__( 'View AI-Readiness Score', 'ai-ready-wp' ) . '</a> ';
		echo '<a class="button" href="' . esc_url( admin_url( 'options-general.php?page=ai-ready-wp' ) ) . '">' . esc_html__( 'All settings', 'ai-ready-wp' ) . '</a> ';
		echo '<a class="button" href="' . esc_url( home_url( '/llms.txt' ) ) . '" target="_blank" rel="noopener">' . esc_html__( 'See your llms.txt', 'ai-ready-wp' ) . '</a>';
		echo '</p>';
	}

	// ─── Review notice ──────────────────────────────────────

	public function review_notice(): void {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		if ( get_option( self::REVIEW_OPTION ) ) {
			return;
		}
		$done = (int) get_option( self::DONE_OPTION, 0 );
		if ( ! $done || ( time() - $done ) < self::REVIEW_DELAY ) {
			return;
		}
		$review_url  = 'https://wordpress.org/support/plugin/ai-ready-wp/reviews/#new-post';
		$dismiss_url = wp_nonce_url( add_query_arg( 'airewp_review_dismiss', '1' ), 'airewp_review_dismiss' );

		echo '<div class="notice notice-info is-dismissible"><p>';
		echo esc_html__( 'Enjoying AI-Ready WP? A quick review on WordPress.org would really help us — it takes a minute.', 'ai-ready-wp' );
		echo ' <a href="' . esc_url( $review_url ) . '" target="_blank" rel="noopener">' . esc_html__( 'Leave a review', 'ai-ready-wp' ) . '</a>';
		echo ' &middot; <a href="' . esc_url( $dismiss_url ) . '">' . esc_html__( 'No thanks', 'ai-ready-wp' ) . '</a>';
		echo '</p></div>';
	}

	public function handle_review_dismiss(): void {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- nonce verified on the next line.
		if ( empty( $_GET['airewp_review_dismiss'] ) ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		check_admin_referer( 'airewp_review_dismiss' );
		update_option( self::REVIEW_OPTION, 1 );
		wp_safe_redirect( remove_query_arg( [ 'airewp_review_dismiss', '_wpnonce' ] ) );
		exit;
	}

	// ─── Styles ─────────────────────────────────────────────

	public function print_styles(): void {
		echo '<style>
.airewp-setup{max-width:640px;margin:40px auto}
.airewp-setup-card{background:#fff;border:1px solid #dcdcde;border-radius:8px;padding:32px 40px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.airewp-setup-title{margin:0 0 20px;font-size:24px}
.airewp-steps{display:flex;gap:8px;list-style:none;margin:0 0 28px;padding:0}
.airewp-steps li{flex:1;font-size:12px;color:#787c82;border-top:3px solid #dcdcde;padding-top:8px}
.airewp-steps li.active{color:#1d2327;border-top-color:#c8a97e;font-weight:600}
.airewp-steps li.done{border-top-color:#c8a97e}
.airewp-steps li span{display:inline-flex;width:20px;height:20px;border-radius:50%;background:#dcdcde;color:#fff;align-items:center;justify-content:center;font-size:11px;margin-right:6px}
.airewp-steps li.active span,.airewp-steps li.done span{background:#c8a97e}
.airewp-lead{font-size:15px;color:#3c434a}
.airewp-bullets{margin:16px 0 24px;padding-left:20px}
.airewp-bullets li{margin:6px 0}
.airewp-form{margin:16px 0}
.airewp-label{display:block;font-weight:600;margin:16px 0 6px}
.airewp-radio{display:block;margin:10px 0;padding:12px 14px;border:1px solid #dcdcde;border-radius:6px;cursor:pointer}
.airewp-actions .button{margin-right:8px;margin-bottom:8px}
.button-hero{margin-top:8px}
</style>';
	}
}