<?php

/**
 * The admin-specific functionality of the plugin.
 *
 * The free edition renders every screen of the product. Premium options are
 * visible but inert, marked with a PRO pill that links to the product page.
 * When the PRO add-on is installed, those pills disappear and the add-on
 * takes over the screens it owns.
 *
 * @link       https://flowsyncweb.com
 * @since      1.0.0
 * @package    Fsweb_Comments_Core
 * @subpackage Fsweb_Comments_Core/admin
 */

if ( ! defined( 'WPINC' ) ) {
	die;
}

/**
 * Admin screens, settings and assets.
 *
 * @since 1.0.0
 */
class Fsweb_Comments_Core_Admin {

	/**
	 * Plugin slug.
	 *
	 * @var string
	 */
	private $plugin_name;

	/**
	 * Plugin version.
	 *
	 * @var string
	 */
	private $version;

	/**
	 * Set the plugin identity.
	 *
	 * @param string $plugin_name Plugin slug.
	 * @param string $version     Plugin version.
	 */
	public function __construct( $plugin_name, $version ) {
		$this->plugin_name = $plugin_name;
		$this->version     = $version;
	}

	// ------------------------------------------------------------------//
	//  PRO state
	// ------------------------------------------------------------------//

	/**
	 * Whether the PRO add-on is installed and running.
	 *
	 * This edition reads no licence option: it only checks whether the
	 * companion plugin is loaded. Unlocking happens inside the add-on, so no
	 * feature of this plugin is gated by a licence check.
	 *
	 * While the add-on is absent the premium options stay visible as plain
	 * text pointing to the separate plugin.
	 *
	 * @return bool
	 */
	public function is_pro_active() {
		return defined( 'FSWEB_COMMENTS_CORE_PRO_VERSION' );
	}

	/**
	 * URL of the product page.
	 *
	 * @return string
	 */
	private function pro_url() {
		return defined( 'FSWEB_COMMENTS_CORE_PRO_URL' ) ? FSWEB_COMMENTS_CORE_PRO_URL : 'https://flowsyncweb.com/';
	}

	// ------------------------------------------------------------------//
	//  Assets
	// ------------------------------------------------------------------//

	/**
	 * Enqueue the admin stylesheet on our screens.
	 *
	 * The version comes from the file timestamp so a changed stylesheet is
	 * never served from the browser cache.
	 *
	 * @param string $hook_suffix Current admin page.
	 * @return void
	 */
	public function enqueue_styles( $hook_suffix ) {
		if ( ! $this->is_plugin_screen( $hook_suffix ) ) {
			return;
		}

		$stylesheet = FSWEB_COMMENTS_CORE_DIR . 'admin/css/fsweb-comments-core-admin.css';

		wp_enqueue_style(
			$this->plugin_name,
			FSWEB_COMMENTS_CORE_URL . 'admin/css/fsweb-comments-core-admin.css',
			array(),
			file_exists( $stylesheet ) ? (string) filemtime( $stylesheet ) : $this->version
		);
	}

	/**
	 * Enqueue the admin script on our screens.
	 *
	 * @param string $hook_suffix Current admin page.
	 * @return void
	 */
	public function enqueue_scripts( $hook_suffix ) {
		if ( ! $this->is_plugin_screen( $hook_suffix ) ) {
			return;
		}

		$script = FSWEB_COMMENTS_CORE_DIR . 'admin/js/fsweb-comments-core-admin.js';

		wp_enqueue_script(
			$this->plugin_name,
			FSWEB_COMMENTS_CORE_URL . 'admin/js/fsweb-comments-core-admin.js',
			array(),
			file_exists( $script ) ? (string) filemtime( $script ) : $this->version,
			true
		);
	}

	/**
	 * Whether the current screen belongs to the plugin.
	 *
	 * @param string $hook_suffix Current admin page.
	 * @return bool
	 */
	private function is_plugin_screen( $hook_suffix ) {
		if ( false !== strpos( (string) $hook_suffix, 'fsweb-comments-core' ) ) {
			return true;
		}

		$screen = get_current_screen();

		return $screen && 'fsweb_review' === $screen->post_type;
	}

	// ------------------------------------------------------------------//
	//  Menu
	// ------------------------------------------------------------------//

	/**
	 * Register the submenu pages.
	 *
	 * With the add-on installed it owns the overview and both builders, so the
	 * free edition only keeps the settings screen and the PRO page.
	 *
	 * @return void
	 */
	public function add_admin_menu() {
		$parent = 'edit.php?post_type=fsweb_review';

		if ( ! $this->is_pro_active() ) {
			add_submenu_page(
				$parent,
				__( 'Overview', 'fsweb-comments-core' ),
				__( 'Overview', 'fsweb-comments-core' ),
				'manage_options',
				'fsweb-comments-core',
				array( $this, 'render_overview_page' ),
				3
			);

			add_submenu_page(
				$parent,
				__( 'Form Builder', 'fsweb-comments-core' ),
				__( 'Form Builder', 'fsweb-comments-core' ),
				'manage_options',
				'fsweb-comments-core-builder',
				array( $this, 'render_builder_page' ),
				4
			);

			add_submenu_page(
				$parent,
				__( 'Views Builder', 'fsweb-comments-core' ),
				__( 'Views Builder', 'fsweb-comments-core' ),
				'manage_options',
				'fsweb-comments-core-views',
				array( $this, 'render_views_page' ),
				5
			);
		}

		add_submenu_page(
			$parent,
			__( 'Settings', 'fsweb-comments-core' ),
			__( 'Settings', 'fsweb-comments-core' ),
			'manage_options',
			'fsweb-comments-core-settings',
			array( $this, 'render_settings_page' ),
			6
		);

		// The offer only exists while the add-on is not installed: with the
		// companion plugin there is nothing left to sell here.
		if ( ! $this->is_pro_active() ) {
			add_submenu_page(
				$parent,
				__( 'Go PRO', 'fsweb-comments-core' ),
				'<span class="fsweb-cc-menu-pro">' . esc_html__( 'Go PRO', 'fsweb-comments-core' ) . '</span>',
				'manage_options',
				'fsweb-comments-core-go-pro',
				array( $this, 'render_go_pro_page' ),
				7
			);
		}
	}

	/**
	 * URL of one of our screens.
	 *
	 * @param string $slug Screen slug.
	 * @return string
	 */
	private function page_url( $slug ) {
		return admin_url( 'edit.php?post_type=fsweb_review&page=' . $slug );
	}

	// ------------------------------------------------------------------//
	//  Shared UI
	// ------------------------------------------------------------------//

	/**
	 * Screens shown in the hero navigation.
	 *
	 * @param string $current Slug of the current screen.
	 * @return array
	 */
	private function nav_screens( $current ) {
		$screens = array();
		$pro     = $this->is_pro_active();

		if ( $pro ) {
			$screens['fsweb-comments-core-pro'] = array(
				'label' => __( 'Dashboard', 'fsweb-comments-core' ),
				'icon'  => 'dashicons-dashboard',
			);
		} else {
			$screens['fsweb-comments-core'] = array(
				'label' => __( 'Overview', 'fsweb-comments-core' ),
				'icon'  => 'dashicons-dashboard',
			);
		}

		$screens['fsweb-comments-core-builder'] = array(
			'label' => __( 'Form Builder', 'fsweb-comments-core' ),
			'icon'  => 'dashicons-feedback',
		);

		$screens['fsweb-comments-core-views'] = array(
			'label' => __( 'Views Builder', 'fsweb-comments-core' ),
			'icon'  => 'dashicons-layout',
		);

		$screens['fsweb-comments-core-settings'] = array(
			'label' => __( 'Settings', 'fsweb-comments-core' ),
			'icon'  => 'dashicons-admin-generic',
		);

		if ( $pro ) {
			$screens['fsweb-comments-core-license'] = array(
				'label' => __( 'License', 'fsweb-comments-core' ),
				'icon'  => 'dashicons-awards',
			);
		}

		if ( ! $this->is_pro_active() ) {
			$screens['fsweb-comments-core-go-pro'] = array(
				'label' => __( 'Go PRO', 'fsweb-comments-core' ),
				'icon'  => 'dashicons-star-filled',
			);
		}

		return $screens;
	}

	/**
	 * Render the hero header shared by every screen.
	 *
	 * @param string $title       Screen title.
	 * @param string $description One-line description.
	 * @param string $current     Slug of the current screen.
	 * @return void
	 */
	private function render_hero( $title, $description, $current = '' ) {
		$screens = $this->nav_screens( $current );
		?>
		<div class="fsweb-cc-hero fsweb-cc-hero--split">
			<div class="fsweb-cc-hero__text">
				<h1><?php echo esc_html( $title ); ?></h1>
				<p><?php echo esc_html( $description ); ?></p>
			</div>
			<div class="fsweb-cc-hero__actions">
				<?php foreach ( $screens as $slug => $screen ) : ?>
					<?php if ( $slug === $current ) : ?>
						<span class="button" aria-current="page">
							<span class="dashicons <?php echo esc_attr( $screen['icon'] ); ?>" aria-hidden="true"></span>
							<?php echo esc_html( $screen['label'] ); ?>
						</span>
					<?php else : ?>
						<a class="button" href="<?php echo esc_url( $this->page_url( $slug ) ); ?>">
							<span class="dashicons <?php echo esc_attr( $screen['icon'] ); ?>" aria-hidden="true"></span>
							<?php echo esc_html( $screen['label'] ); ?>
						</a>
					<?php endif; ?>
				<?php endforeach; ?>
			</div>
		</div>
		<?php
	}

	/**
	 * PRO pill.
	 *
	 * @return void
	 */
	private function pro_tag() {
		if ( $this->is_pro_active() ) {
			return;
		}
		?>
		<a class="fsweb-cc-pro-tag" href="<?php echo esc_url( $this->page_url( 'fsweb-comments-core-go-pro' ) ); ?>">
			<?php esc_html_e( 'PRO', 'fsweb-comments-core' ); ?>
		</a>
		<?php
	}

	/**
	 * Render a locked option: label with the PRO pill and a muted value.
	 *
	 * @param string $label Option label.
	 * @param string $hint  Optional description.
	 * @return void
	 */
	private function render_locked_field( $label, $hint = '' ) {
		?>
		<tr class="fsweb-cc-locked-row">
			<th scope="row">
				<?php echo esc_html( $label ); ?>
				<?php $this->pro_tag(); ?>
			</th>
			<td>
				<span class="fsweb-cc-locked">
					<?php esc_html_e( 'Available in the PRO add-on', 'fsweb-comments-core' ); ?>
				</span>
				<?php if ( '' !== $hint ) : ?>
					<p class="description"><?php echo esc_html( $hint ); ?></p>
				<?php endif; ?>
			</td>
		</tr>
		<?php
	}

	// ------------------------------------------------------------------//
	//  Settings API
	// ------------------------------------------------------------------//

	/**
	 * Register the settings.
	 *
	 * @return void
	 */
	public function register_settings() {
		register_setting(
			'fsweb_comments_core_settings',
			'fsweb_comments_core_form_status',
			array(
				'type'              => 'string',
				'default'           => 'open',
				'sanitize_callback' => array( $this, 'sanitize_form_status' ),
			)
		);

		register_setting(
			'fsweb_comments_core_settings',
			'fsweb_comments_core_require_email',
			array(
				'type'              => 'string',
				'default'           => '1',
				'sanitize_callback' => array( $this, 'sanitize_require_email' ),
			)
		);

		register_setting(
			'fsweb_comments_core_settings',
			'fsweb_comments_core_default_theme',
			array(
				'type'              => 'string',
				'default'           => 'default',
				'sanitize_callback' => array( $this, 'sanitize_default_theme' ),
			)
		);
	}

	/**
	 * Sanitise the "require email" checkbox.
	 *
	 * The value is stored as '1' or '0': a boolean false would be dropped by
	 * update_option() when the option does not exist yet, and the default
	 * would silently win.
	 *
	 * @param mixed $value Raw value.
	 * @return string '1' when required, '0' otherwise.
	 */
	public function sanitize_require_email( $value ) {
		return ( '1' === $value || 1 === $value || true === $value || 'true' === $value ) ? '1' : '0';
	}

	/**
	 * Sanitise the form status option.
	 *
	 * @param string $value Raw value.
	 * @return string
	 */
	public function sanitize_form_status( $value ) {
		return 'closed' === $value ? 'closed' : 'open';
	}

	/**
	 * Sanitise the default theme option.
	 *
	 * @param string $value Raw value.
	 * @return string
	 */
	public function sanitize_default_theme( $value ) {
		return 'dark' === $value ? 'dark' : 'default';
	}

	// ------------------------------------------------------------------//
	//  Screens
	// ------------------------------------------------------------------//

	/**
	 * Overview screen.
	 *
	 * @return void
	 */
	public function render_overview_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		$counts  = wp_count_posts( 'fsweb_review' );
		$pending = isset( $counts->pending ) ? (int) $counts->pending : 0;
		$publish = isset( $counts->publish ) ? (int) $counts->publish : 0;
		$average = $this->get_average_rating();
		$status  = get_option( 'fsweb_comments_core_form_status', 'open' );
		?>
		<div class="wrap fsweb-cc-wrap">
			<hr class="wp-header-end">
			<?php
			$this->render_hero(
				__( 'Comments Core', 'fsweb-comments-core' ),
				__( 'Collect reviews, moderate them and display them anywhere with a shortcode.', 'fsweb-comments-core' ),
				'fsweb-comments-core'
			);
			?>

			<div class="fsweb-cc-stats">
				<div class="fsweb-cc-stat-card">
					<span class="fsweb-cc-stat-label"><?php esc_html_e( 'Published reviews', 'fsweb-comments-core' ); ?></span>
					<span class="fsweb-cc-stat-value"><?php echo esc_html( (string) $publish ); ?></span>
				</div>
				<div class="fsweb-cc-stat-card">
					<span class="fsweb-cc-stat-label"><?php esc_html_e( 'Awaiting moderation', 'fsweb-comments-core' ); ?></span>
					<span class="fsweb-cc-stat-value"><?php echo esc_html( (string) $pending ); ?></span>
				</div>
				<div class="fsweb-cc-stat-card">
					<span class="fsweb-cc-stat-label"><?php esc_html_e( 'Average rating', 'fsweb-comments-core' ); ?></span>
					<span class="fsweb-cc-stat-value"><?php echo esc_html( '' === $average ? '—' : $average ); ?></span>
				</div>
				<div class="fsweb-cc-stat-card">
					<span class="fsweb-cc-stat-label"><?php esc_html_e( 'Submissions', 'fsweb-comments-core' ); ?></span>
					<span class="fsweb-cc-pill <?php echo 'open' === $status ? 'is-on' : 'is-off'; ?>">
						<?php echo 'open' === $status ? esc_html__( 'Open', 'fsweb-comments-core' ) : esc_html__( 'Closed', 'fsweb-comments-core' ); ?>
					</span>
				</div>
			</div>

			<div class="fsweb-cc-grid">
				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-shortcode" aria-hidden="true"></span>
							<?php esc_html_e( 'Shortcodes', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<p><?php esc_html_e( 'Display your reviews:', 'fsweb-comments-core' ); ?></p>
						<code class="fsweb-cc-code">[fsweb_reviews layout="slider" count="6" slides="3"]</code>
						<p><?php esc_html_e( 'Show the submission form:', 'fsweb-comments-core' ); ?></p>
						<code class="fsweb-cc-code">[fsweb_review_form]</code>
						<p class="description">
							<?php esc_html_e( 'Attributes: layout (slider, grid or list), theme (default or dark), count, slides (1 to 4), columns (1 to 4), category, order (newest, oldest, random, menu_order), show_image (yes or no).', 'fsweb-comments-core' ); ?>
						</p>
					</div>
				</div>

				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-yes-alt" aria-hidden="true"></span>
							<?php esc_html_e( 'Included in the free edition', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<ul class="fsweb-cc-list">
							<li><?php esc_html_e( 'Reviews post type with categories', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Star ratings and photo (featured image)', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Slider (default), grid and list layouts', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Default and dark themes', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Submission form with moderation queue', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Theme template overrides', 'fsweb-comments-core' ); ?></li>
						</ul>
						<p>
							<a class="button" href="<?php echo esc_url( $this->page_url( 'fsweb-comments-core-settings' ) ); ?>">
								<span class="dashicons dashicons-admin-generic" aria-hidden="true"></span>
								<?php esc_html_e( 'Open settings', 'fsweb-comments-core' ); ?>
							</a>
							<a class="button" href="<?php echo esc_url( admin_url( 'post-new.php?post_type=fsweb_review' ) ); ?>">
								<span class="dashicons dashicons-plus-alt" aria-hidden="true"></span>
								<?php esc_html_e( 'Add review', 'fsweb-comments-core' ); ?>
							</a>
						</p>
					</div>
				</div>
			</div>
		</div>
		<?php
	}

	/**
	 * Form Builder screen — unlocked by the PRO add-on.
	 *
	 * @return void
	 */
	public function render_builder_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		?>
		<div class="wrap fsweb-cc-wrap">
			<hr class="wp-header-end">
			<?php
			$this->render_hero(
				__( 'Form Builder', 'fsweb-comments-core' ),
				__( 'Build the review form field by field, with extra types and multiple steps.', 'fsweb-comments-core' ),
				'fsweb-comments-core-builder'
			);
			?>

			<div class="fsweb-cc-grid">
				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-feedback" aria-hidden="true"></span>
							<?php esc_html_e( 'Fields', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<table class="form-table fsweb-cc-table" role="presentation">
							<tr>
								<th scope="row"><?php esc_html_e( 'Name', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Email', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Rating (stars)', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Review text', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<?php
							$this->render_locked_field( __( 'Date', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'Select', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'URL', 'fsweb-comments-core' ) );
							?>
							<tr>
								<th scope="row"><?php esc_html_e( 'Photo upload', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
						</table>
						<p class="description">
							<?php esc_html_e( 'In the free edition the form has name, email, photo, rating and review. The PRO add-on lets you reorder, remove and add fields.', 'fsweb-comments-core' ); ?>
						</p>
					</div>
				</div>

				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-randomize" aria-hidden="true"></span>
							<?php esc_html_e( 'Flow', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<table class="form-table fsweb-cc-table" role="presentation">
							<?php
							$this->render_locked_field( __( 'Multi-step form', 'fsweb-comments-core' ), __( 'Split the form into steps with a progress indicator.', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'Redirect after submit', 'fsweb-comments-core' ), __( 'Send the visitor to a thank-you page after the review is accepted.', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'Saved forms', 'fsweb-comments-core' ), __( 'Keep several forms and choose one per shortcode with [fsweb_review_form id="..."].', 'fsweb-comments-core' ) );
							?>
						</table>
					</div>
				</div>
			</div>
		</div>
		<?php
	}

	/**
	 * Views Builder screen — unlocked by the PRO add-on.
	 *
	 * @return void
	 */
	public function render_views_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		?>
		<div class="wrap fsweb-cc-wrap">
			<hr class="wp-header-end">
			<?php
			$this->render_hero(
				__( 'Views Builder', 'fsweb-comments-core' ),
				__( 'Design the review card and pick the layout, the skin and the CSS for each view.', 'fsweb-comments-core' ),
				'fsweb-comments-core-views'
			);
			?>

			<div class="fsweb-cc-grid">
				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-layout" aria-hidden="true"></span>
							<?php esc_html_e( 'Layout', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<table class="form-table fsweb-cc-table" role="presentation">
							<tr>
								<th scope="row"><?php esc_html_e( 'Grid', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'List', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Slider', 'fsweb-comments-core' ); ?></th>
								<td><span class="fsweb-cc-pill is-on"><?php esc_html_e( 'Included', 'fsweb-comments-core' ); ?></span></td>
							</tr>
							<?php $this->render_locked_field( __( 'Infinite slider', 'fsweb-comments-core' ), __( 'Autoplay and seamless looping past the last card.', 'fsweb-comments-core' ) ); ?>
						</table>
						<p class="description">
							<?php esc_html_e( 'The free edition renders the slider by default, with arrows, dot navigation and keyboard support, plus the grid and list layouts. The infinite loop and autoplay come with the PRO add-on.', 'fsweb-comments-core' ); ?>
						</p>
					</div>
				</div>

				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-art" aria-hidden="true"></span>
							<?php esc_html_e( 'Appearance', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<table class="form-table fsweb-cc-table" role="presentation">
							<?php
							$this->render_locked_field( __( 'Skin', 'fsweb-comments-core' ), __( 'Dark, minimal, colorful and flat, ready to use.', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'Custom CSS', 'fsweb-comments-core' ), __( 'Write the CSS of each view without touching the theme.', 'fsweb-comments-core' ) );
							$this->render_locked_field( __( 'Card composition', 'fsweb-comments-core' ), __( 'Choose which components appear in the card and in which order.', 'fsweb-comments-core' ) );
							?>
						</table>
					</div>
				</div>
			</div>
		</div>
		<?php
	}

	/**
	 * Settings screen.
	 *
	 * @return void
	 */
	public function render_settings_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		$status  = get_option( 'fsweb_comments_core_form_status', 'open' );
		$require = '1' === get_option( 'fsweb_comments_core_require_email', '1' );
		$theme   = get_option( 'fsweb_comments_core_default_theme', 'default' );
		?>
		<div class="wrap fsweb-cc-wrap">
			<hr class="wp-header-end">
			<?php
			$this->render_hero(
				__( 'Settings', 'fsweb-comments-core' ),
				__( 'Control the submissions and the appearance of the reviews.', 'fsweb-comments-core' ),
				'fsweb-comments-core-settings'
			);
			?>
			<form method="post" action="options.php">
				<?php settings_fields( 'fsweb_comments_core_settings' ); ?>

				<div class="fsweb-cc-grid">
					<div class="fsweb-cc-card">
						<div class="fsweb-cc-card__header">
							<h2>
								<span class="dashicons dashicons-email-alt" aria-hidden="true"></span>
								<?php esc_html_e( 'Review form', 'fsweb-comments-core' ); ?>
							</h2>
						</div>
						<div class="fsweb-cc-card__body">
							<table class="form-table" role="presentation">
								<tr>
									<th scope="row">
										<label for="fsweb_comments_core_form_status"><?php esc_html_e( 'Submissions', 'fsweb-comments-core' ); ?></label>
									</th>
									<td>
										<select name="fsweb_comments_core_form_status" id="fsweb_comments_core_form_status">
											<option value="open" <?php selected( $status, 'open' ); ?>><?php esc_html_e( 'Open — accept new reviews', 'fsweb-comments-core' ); ?></option>
											<option value="closed" <?php selected( $status, 'closed' ); ?>><?php esc_html_e( 'Closed — hide the form', 'fsweb-comments-core' ); ?></option>
										</select>
									</td>
								</tr>
								<tr>
									<th scope="row"><?php esc_html_e( 'Email', 'fsweb-comments-core' ); ?></th>
									<td>
										<label>
											<input type="checkbox" name="fsweb_comments_core_require_email" value="1" <?php checked( $require ); ?>>
											<?php esc_html_e( 'Require the visitor email', 'fsweb-comments-core' ); ?>
										</label>
										<p class="description"><?php esc_html_e( 'The email is saved with the review and shown on the card.', 'fsweb-comments-core' ); ?></p>
									</td>
								</tr>
							</table>
						</div>
					</div>

					<?php if ( ! $this->is_pro_active() ) : ?>
					<div class="fsweb-cc-card">
						<div class="fsweb-cc-card__header">
							<h2>
								<span class="dashicons dashicons-art" aria-hidden="true"></span>
								<?php esc_html_e( 'Appearance', 'fsweb-comments-core' ); ?>
							</h2>
						</div>
						<div class="fsweb-cc-card__body">
							<table class="form-table" role="presentation">
								<tr>
									<th scope="row">
										<label for="fsweb_comments_core_default_theme"><?php esc_html_e( 'Theme', 'fsweb-comments-core' ); ?></label>
									</th>
									<td>
										<select name="fsweb_comments_core_default_theme" id="fsweb_comments_core_default_theme">
											<option value="default" <?php selected( $theme, 'default' ); ?>><?php esc_html_e( 'Default — light cards', 'fsweb-comments-core' ); ?></option>
											<option value="dark" <?php selected( $theme, 'dark' ); ?>><?php esc_html_e( 'Dark — dark cards', 'fsweb-comments-core' ); ?></option>
										</select>
										<p class="description"><?php esc_html_e( 'Used when the shortcode does not set theme="dark" or theme="default".', 'fsweb-comments-core' ); ?></p>
									</td>
								</tr>
								<?php
								$this->render_locked_field( __( 'Custom CSS', 'fsweb-comments-core' ), __( 'Extra CSS loaded after the plugin styles.', 'fsweb-comments-core' ) );
								?>
							</table>
							<p class="description">
								<?php esc_html_e( 'The free edition ships the default and dark themes. The other skins and the custom CSS come with the PRO add-on.', 'fsweb-comments-core' ); ?>
							</p>
						</div>
					</div>
					<?php endif; ?>
				</div>

				<?php submit_button(); ?>
			</form>
		</div>
		<?php
	}

	/**
	 * Go PRO screen.
	 *
	 * Single page with the full offer; every other screen only carries the
	 * small PRO pills next to the locked options.
	 *
	 * @return void
	 */
	public function render_go_pro_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		// Reached only through an old bookmark: the menu entry disappears once
		// the add-on is installed.
		if ( $this->is_pro_active() ) {
			?>
			<div class="wrap fsweb-cc-wrap">
				<hr class="wp-header-end">
				<?php
				$this->render_hero(
					__( 'Comments Core PRO', 'fsweb-comments-core' ),
					__( 'The PRO add-on is installed and running.', 'fsweb-comments-core' ),
					'fsweb-comments-core-go-pro'
				);
				?>
				<div class="fsweb-cc-card">
					<p><?php esc_html_e( 'Everything this page used to sell is already unlocked on your site.', 'fsweb-comments-core' ); ?></p>
					<p>
						<a class="button button-primary" href="<?php echo esc_url( $this->page_url( 'fsweb-comments-core-pro' ) ); ?>">
							<span class="dashicons dashicons-dashboard" aria-hidden="true"></span>
							<?php esc_html_e( 'Open the dashboard', 'fsweb-comments-core' ); ?>
						</a>
					</p>
				</div>
			</div>
			<?php
			return;
		}
		?>
		<div class="wrap fsweb-cc-wrap">
			<hr class="wp-header-end">
			<?php
			$this->render_hero(
				__( 'Comments Core PRO', 'fsweb-comments-core' ),
				__( 'Unlock the builders, the extra skins and the automatic updates with a single license.', 'fsweb-comments-core' ),
				'fsweb-comments-core-go-pro'
			);
			?>

			<div class="fsweb-cc-grid">
				<div class="fsweb-cc-card fsweb-cc-card--pro">
					<div class="fsweb-cc-pro-card">
						<span class="fsweb-cc-pro-card__icon dashicons dashicons-star-filled" aria-hidden="true"></span>
						<div class="fsweb-cc-pro-card__text">
							<h2><?php esc_html_e( 'What the PRO add-on adds', 'fsweb-comments-core' ); ?></h2>
							<ul class="fsweb-cc-list">
								<li><?php esc_html_e( 'Form Builder: 8 field types, drag and drop order, multi-step forms', 'fsweb-comments-core' ); ?></li>
								<li><?php esc_html_e( 'Views Builder: rows, columns and components with per-view styles', 'fsweb-comments-core' ); ?></li>
								<li><?php esc_html_e( 'Infinite slider with autoplay, on top of the free slider', 'fsweb-comments-core' ); ?></li>
								<li><?php esc_html_e( 'Four ready-made skins plus custom CSS per view', 'fsweb-comments-core' ); ?></li>
								<li><?php esc_html_e( 'License activation and automatic updates', 'fsweb-comments-core' ); ?></li>
							</ul>
							<p>
								<a class="button button-primary" href="<?php echo esc_url( $this->pro_url() ); ?>" target="_blank" rel="noopener noreferrer">
									<span class="dashicons dashicons-external" aria-hidden="true"></span>
									<?php esc_html_e( 'Get Comments Core PRO', 'fsweb-comments-core' ); ?>
								</a>
							</p>
						</div>
					</div>
				</div>

				<div class="fsweb-cc-card">
					<div class="fsweb-cc-card__header">
						<h2>
							<span class="dashicons dashicons-admin-plugins" aria-hidden="true"></span>
							<?php esc_html_e( 'How the license works', 'fsweb-comments-core' ); ?>
						</h2>
					</div>
					<div class="fsweb-cc-card__body">
						<ol class="fsweb-cc-list fsweb-cc-list--ordered">
							<li><?php esc_html_e( 'Install the free plugin (this one) and keep it active.', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Buy the license and download the PRO add-on ZIP.', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Install and activate the add-on — it appears under Reviews → Dashboard.', 'fsweb-comments-core' ); ?></li>
							<li><?php esc_html_e( 'Open Reviews → License and paste your key. The PRO pills disappear and every feature is unlocked.', 'fsweb-comments-core' ); ?></li>
						</ol>
						<p class="description">
							<?php esc_html_e( 'One key works for both editions: the add-on always validates the base slug fsweb-comments-core.', 'fsweb-comments-core' ); ?>
						</p>
					</div>
				</div>
			</div>
		</div>
		<?php
	}

	/**
	 * Average rating of the published reviews.
	 *
	 * @return string Formatted with one decimal, or empty string.
	 */
	private function get_average_rating() {
		$ids = get_posts(
			array(
				'post_type'      => 'fsweb_review',
				'post_status'    => 'publish',
				'posts_per_page' => 500,
				'fields'         => 'ids',
				'no_found_rows'  => true,
			)
		);

		if ( empty( $ids ) ) {
			return '';
		}

		$total = 0;
		$rated = 0;

		foreach ( $ids as $id ) {
			$rating = (int) get_post_meta( $id, 'fsweb_rating', true );
			if ( $rating > 0 ) {
				$total += $rating;
				$rated++;
			}
		}

		if ( 0 === $rated ) {
			return '';
		}

		return number_format_i18n( $total / $rated, 1 );
	}
}