<?php
/**
 * Plugin settings (admin page, options).
 *
 * @package AHA_Hero_Slider
 * @since   1.0.0
 */

if ( ! defined( 'WPINC' ) ) {
	die;
}

/**
 * Settings and settings UI.
 */
class AHA_Hero_Slider_Settings {

	/**
	 * Option names for each tab.
	 */
	const OPTION_GENERAL    = 'aha_hero_slider_general';
	const OPTION_DESIGN     = 'aha_hero_slider_design';
	const OPTION_SHORTCODE  = 'aha_hero_slider_shortcode';
	const OPTION_LEGACY     = 'aha_hero_slider_settings';

	/**
	 * Instance.
	 *
	 * @var self|null
	 */
	private static $instance = null;

	/**
	 * Field renderers for each tab.
	 *
	 * @var AHA_Hero_Slider_Settings_Fields
	 */
	private $fields_general;
	private $fields_design;
	private $fields_shortcode;

	/**
	 * Built-in tab slugs (order).
	 *
	 * @var string[]
	 */
	private $base_tab_slugs = array( 'general', 'design', 'shortcode' );

	/**
	 * Get instance.
	 *
	 * @return self
	 */
	public static function get_instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	public function __construct() {
		$this->fields_general   = new AHA_Hero_Slider_Settings_Fields( self::OPTION_GENERAL, array( $this, 'get_settings' ) );
		$this->fields_design    = new AHA_Hero_Slider_Settings_Fields( self::OPTION_DESIGN, array( $this, 'get_settings' ) );
		$this->fields_shortcode = new AHA_Hero_Slider_Settings_Fields( self::OPTION_SHORTCODE, array( $this, 'get_settings' ) );

		add_action( 'admin_menu', array( $this, 'register_menu' ), 9 );
		add_action( 'admin_menu', array( $this, 'register_cpt_submenu' ), 20 );
		add_action( 'admin_init', array( $this, 'maybe_migrate_legacy_settings' ), 8 );
		add_action( 'admin_init', array( $this, 'register_settings' ) );
		add_action( 'admin_init', array( $this, 'maybe_save_uninstall_preference' ) );
		add_filter( 'aha_hero_slider_settings_tabs', array( $this, 'append_uninstall_tab' ), 100 );
	}

	/**
	 * One-time migration from legacy unified option to per-tab options.
	 *
	 * @return void
	 */
	public function maybe_migrate_legacy_settings() {
		if ( get_option( 'aha_hero_slider_migrated_to_per_tab' ) ) {
			return;
		}

		$legacy = get_option( self::OPTION_LEGACY, array() );
		if ( empty( $legacy ) || ! is_array( $legacy ) ) {
			update_option( 'aha_hero_slider_migrated_to_per_tab', '1' );
			return;
		}

		// Field mapping: which legacy fields belong to each tab
		$field_map = array(
			'general' => array(
				'enable_slideshow',
				'enable_custom_image_sizes',
				'shortcode_autoplay_speed',
				'shortcode_show_arrows',
				'shortcode_border_radius',
			),
			'design'  => array(
				'color_arrow', 'color_arrow_icon', 'color_bullet', 'color_bullet_active',
				'color_progress_track', 'color_progress_fill',
				'overlay_color', 'overlay_enabled', 'overlay_opacity',
				'color_badge', 'color_headline', 'color_subtitle',
				'color_btn1_bg', 'color_btn1_text', 'color_btn1_border', 'color_btn1_radius',
				'color_btn2_bg', 'color_btn2_text', 'color_btn2_border', 'color_btn2_radius',
				'color_mobile_bg',
				'color_btn1_bg_mobile', 'color_btn1_text_mobile', 'color_btn1_border_mobile', 'color_btn1_radius_mobile',
				'color_btn2_bg_mobile', 'color_btn2_text_mobile', 'color_btn2_border_mobile', 'color_btn2_radius_mobile',
			),
		);

		// Distribute to per-tab options
		$general_data = array();
		$design_data  = array();

		foreach ( $legacy as $key => $value ) {
			if ( in_array( $key, $field_map['general'], true ) ) {
				$general_data[ $key ] = $value;
			} elseif ( in_array( $key, $field_map['design'], true ) ) {
				$design_data[ $key ] = $value;
			}
		}

		if ( ! empty( $general_data ) ) {
			update_option( self::OPTION_GENERAL, $general_data );
		}
		if ( ! empty( $design_data ) ) {
			update_option( self::OPTION_DESIGN, $design_data );
		}

		update_option( 'aha_hero_slider_migrated_to_per_tab', '1' );
	}

	/**
	 * Append Uninstall tab after other add-ons register tabs.
	 *
	 * @param array<string, string> $tabs Tab slug => label.
	 * @return array<string, string>
	 */
	public function append_uninstall_tab( $tabs ) {
		if ( ! is_array( $tabs ) ) {
			$tabs = array();
		}
		$tabs['uninstall'] = __( 'Uninstall', 'aha-hero-slider' );
		return $tabs;
	}

	/**
	 * Save "remove data on uninstall" preference (Uninstall tab).
	 *
	 * @return void
	 */
	public function maybe_save_uninstall_preference() {
		if ( ! isset( $_POST['aha_hs_uninstall_prefs'] ) ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'Permission denied.', 'aha-hero-slider' ) );
		}
		check_admin_referer( 'aha_hs_uninstall_prefs', 'aha_hs_uninstall_prefs_nonce' );

		$erase = isset( $_POST['aha_hs_remove_data_on_uninstall'] ) ? '1' : '0';
		update_option( AHA_HERO_SLIDER_UNINSTALL_DELETE_DATA_OPTION, $erase, false );

		wp_safe_redirect(
			add_query_arg(
				array(
					'page'                    => AHA_HERO_SLIDER_ADMIN_SLUG,
					'tab'                     => 'uninstall',
					'aha_hs_uninstall_saved' => '1',
				),
				admin_url( 'admin.php' )
			)
		);
		exit;
	}

	/**
	 * Top-level menu: settings page.
	 */
	public function register_menu() {
		add_menu_page(
			__( 'Aha Hero Slider', 'aha-hero-slider' ),
			__( 'Aha Hero Slider', 'aha-hero-slider' ),
			'manage_options',
			AHA_HERO_SLIDER_ADMIN_SLUG,
			array( $this, 'render_settings_page' ),
			'dashicons-images-alt2',
			76
		);
	}

	/**
	 * Submenu: Hero slides list + Slide groups taxonomy.
	 */
	public function register_cpt_submenu() {
		add_submenu_page(
			AHA_HERO_SLIDER_ADMIN_SLUG,
			__( 'Hero slides', 'aha-hero-slider' ),
			__( 'Hero slides', 'aha-hero-slider' ),
			'edit_posts',
			'edit.php?post_type=' . AHA_HERO_SLIDER_CPT
		);

		add_submenu_page(
			AHA_HERO_SLIDER_ADMIN_SLUG,
			__( 'Slide groups', 'aha-hero-slider' ),
			__( 'Slide groups', 'aha-hero-slider' ),
			'edit_posts',
			'edit-tags.php?taxonomy=' . AHA_HERO_SLIDER_TAXONOMY . '&post_type=' . AHA_HERO_SLIDER_CPT
		);
	}

	/**
	 * Register options and fields for each tab.
	 */
	public function register_settings() {
		// —— General ——
		register_setting(
			'aha_hero_slider_general_group',
			self::OPTION_GENERAL,
			array(
				'sanitize_callback' => array( $this, 'sanitize_general' ),
			)
		);

		add_settings_section(
			'aha_hero_slider_general',
			'',
			array( $this->fields_general, 'render_section_general' ),
			'aha-hero-slider-general'
		);

		add_settings_field(
			'aha_hero_slider_enable_slideshow',
			__( 'Slideshow output', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_enable_slideshow' ),
			'aha-hero-slider-general',
			'aha_hero_slider_general'
		);

		add_settings_section(
			'aha_hero_slider_image_sizes',
			__( 'Automatic image sizes', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_section_image_sizes' ),
			'aha-hero-slider-general'
		);

		add_settings_field(
			'aha_hero_slider_enable_custom_image_sizes',
			__( 'Custom sizes', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_image_sizes' ),
			'aha-hero-slider-general',
			'aha_hero_slider_image_sizes'
		);

		add_settings_section(
			'aha_hero_slider_slide_library',
			__( 'Slide library & shortcode defaults', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_section_slide_library' ),
			'aha-hero-slider-general'
		);

		add_settings_field(
			'aha_hero_slider_quick_actions',
			__( 'Actions', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_quick_actions' ),
			'aha-hero-slider-general',
			'aha_hero_slider_slide_library'
		);

		add_settings_field(
			'aha_hero_slider_shortcode_autoplay',
			__( 'Shortcode default: autoplay interval', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_shortcode_autoplay' ),
			'aha-hero-slider-general',
			'aha_hero_slider_slide_library'
		);

		add_settings_field(
			'aha_hero_slider_shortcode_arrows',
			__( 'Shortcode default: arrows', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_shortcode_arrows' ),
			'aha-hero-slider-general',
			'aha_hero_slider_slide_library'
		);

		add_settings_field(
			'aha_hero_slider_shortcode_radius',
			__( 'Shortcode default: border radius', 'aha-hero-slider' ),
			array( $this->fields_general, 'render_field_shortcode_radius' ),
			'aha-hero-slider-general',
			'aha_hero_slider_slide_library'
		);

		// —— Design ——
		register_setting(
			'aha_hero_slider_design_group',
			self::OPTION_DESIGN,
			array(
				'sanitize_callback' => array( $this, 'sanitize_design' ),
			)
		);

		add_settings_section(
			'aha_hero_slider_design_nav',
			__( 'Navigation', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_nav' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_nav_fields',
			'',
			array( $this->fields_design, 'render_field_design_nav' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_nav'
		);

		add_settings_section(
			'aha_hero_slider_design_progress',
			__( 'Autoplay progress', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_progress' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_progress_fields',
			'',
			array( $this->fields_design, 'render_field_design_progress' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_progress'
		);

		add_settings_section(
			'aha_hero_slider_design_mobile',
			__( 'Mobile (Card Default template)', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_mobile' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_mobile_fields',
			'',
			array( $this->fields_design, 'render_field_design_mobile' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_mobile'
		);

		add_settings_section(
			'aha_hero_slider_design_overlay',
			__( 'Overlay mask', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_overlay' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_overlay_fields',
			'',
			array( $this->fields_design, 'render_field_design_overlay' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_overlay'
		);

		add_settings_section(
			'aha_hero_slider_design_texts',
			__( 'Default text colors', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_texts' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_texts_fields',
			'',
			array( $this->fields_design, 'render_field_design_texts' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_texts'
		);

		add_settings_section(
			'aha_hero_slider_design_buttons',
			__( 'Default button styles', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_section_design_buttons' ),
			'aha-hero-slider-design'
		);
		add_settings_field(
			'aha_hero_slider_design_btn1_fields',
			'<span class="dashicons dashicons-desktop" aria-hidden="true" style="vertical-align:middle;margin-right:4px;"></span>' . __( 'Primary button (desktop)', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_field_design_btn1' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_buttons'
		);
		add_settings_field(
			'aha_hero_slider_design_btn1_mobile_fields',
			'<span class="dashicons dashicons-smartphone" aria-hidden="true" style="vertical-align:middle;margin-right:4px;"></span>' . __( 'Primary button (mobile)', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_field_design_btn1_mobile' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_buttons'
		);
		add_settings_field(
			'aha_hero_slider_design_btn2_fields',
			'<span class="dashicons dashicons-desktop" aria-hidden="true" style="vertical-align:middle;margin-right:4px;"></span>' . __( 'Secondary button (desktop)', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_field_design_btn2' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_buttons'
		);
		add_settings_field(
			'aha_hero_slider_design_btn2_mobile_fields',
			'<span class="dashicons dashicons-smartphone" aria-hidden="true" style="vertical-align:middle;margin-right:4px;"></span>' . __( 'Secondary button (mobile)', 'aha-hero-slider' ),
			array( $this->fields_design, 'render_field_design_btn2_mobile' ),
			'aha-hero-slider-design',
			'aha_hero_slider_design_buttons'
		);
	}

	/**
	 * Sanitize general tab settings.
	 *
	 * @param mixed $input Raw input.
	 * @return array<string, mixed>
	 */
	public function sanitize_general( $input ) {
		if ( ! is_array( $input ) ) {
			return $this->get_general_settings();
		}

		$sanitized = array(
			'enable_slideshow'           => ! empty( $input['enable_slideshow'] ) ? 1 : 0,
			'enable_custom_image_sizes'  => ! empty( $input['enable_custom_image_sizes'] ) ? 1 : 0,
			'shortcode_autoplay_speed'   => isset( $input['shortcode_autoplay_speed'] ) ? max( 0, absint( $input['shortcode_autoplay_speed'] ) ) : 5000,
			'shortcode_show_arrows'      => ! empty( $input['shortcode_show_arrows'] ) ? 1 : 0,
			'shortcode_border_radius'    => isset( $input['shortcode_border_radius'] ) ? max( 0, min( 100, absint( $input['shortcode_border_radius'] ) ) ) : 0,
		);

		return $sanitized;
	}

	/**
	 * Sanitize design tab settings.
	 *
	 * @param mixed $input Raw input.
	 * @return array<string, mixed>
	 */
	public function sanitize_design( $input ) {
		if ( ! is_array( $input ) ) {
			return $this->get_design_settings();
		}

		$sanitized = array();

		$hex_keys = array(
			'color_arrow', 'color_arrow_icon', 'color_bullet', 'color_bullet_active',
			'color_progress_track', 'color_progress_fill',
			'overlay_color',
			'color_badge', 'color_headline', 'color_subtitle',
			'color_btn1_bg', 'color_btn1_text', 'color_btn1_border',
			'color_btn2_bg', 'color_btn2_text', 'color_btn2_border',
			'color_mobile_bg',
			'color_btn1_bg_mobile', 'color_btn1_text_mobile', 'color_btn1_border_mobile',
			'color_btn2_bg_mobile', 'color_btn2_text_mobile', 'color_btn2_border_mobile',
		);
		foreach ( $hex_keys as $key ) {
			$raw               = isset( $input[ $key ] ) ? wp_unslash( $input[ $key ] ) : '';
			$sanitized[ $key ] = sanitize_hex_color( $raw ) ?? '';
		}

		$sanitized['overlay_enabled']          = ! empty( $input['overlay_enabled'] ) ? 1 : 0;
		$sanitized['overlay_opacity']          = isset( $input['overlay_opacity'] ) ? max( 0, min( 100, absint( $input['overlay_opacity'] ) ) ) : 40;
		$sanitized['color_btn1_radius']        = isset( $input['color_btn1_radius'] ) ? max( 0, min( 100, absint( $input['color_btn1_radius'] ) ) ) : 12;
		$sanitized['color_btn2_radius']        = isset( $input['color_btn2_radius'] ) ? max( 0, min( 100, absint( $input['color_btn2_radius'] ) ) ) : 12;
		$sanitized['color_btn1_radius_mobile'] = isset( $input['color_btn1_radius_mobile'] ) && '' !== $input['color_btn1_radius_mobile'] ? max( 0, min( 100, absint( $input['color_btn1_radius_mobile'] ) ) ) : '';
		$sanitized['color_btn2_radius_mobile'] = isset( $input['color_btn2_radius_mobile'] ) && '' !== $input['color_btn2_radius_mobile'] ? max( 0, min( 100, absint( $input['color_btn2_radius_mobile'] ) ) ) : '';

		return $sanitized;
	}

	/**
	 * Get general tab settings with defaults.
	 *
	 * @return array<string, mixed>
	 */
	public function get_general_settings() {
		$defaults = array(
			'enable_slideshow'          => 1,
			'enable_custom_image_sizes' => 1,
			'shortcode_autoplay_speed'  => 5000,
			'shortcode_show_arrows'     => 1,
			'shortcode_border_radius'   => 0,
		);

		$settings = get_option( self::OPTION_GENERAL, array() );
		if ( ! is_array( $settings ) ) {
			$settings = array();
		}

		return wp_parse_args( $settings, $defaults );
	}

	/**
	 * Get design tab settings with defaults.
	 *
	 * @return array<string, mixed>
	 */
	public function get_design_settings() {
		$defaults = array(
			// Design palette
			'color_arrow'              => '#ffffff',
			'color_arrow_icon'         => '#1a1a1a',
			'color_bullet'             => '#c7c7c7',
			'color_bullet_active'      => '#ffffff',
			'color_progress_track'     => '',
			'color_progress_fill'      => '',
			'overlay_enabled'          => 0,
			'overlay_color'            => '#000000',
			'overlay_opacity'          => 40,
			'color_badge'              => '#ffffff',
			'color_headline'           => '#ffffff',
			'color_subtitle'           => '#ffffff',
			'color_btn1_bg'            => '#d81e5b',
			'color_btn1_text'          => '#ffffff',
			'color_btn1_border'        => '',
			'color_btn1_radius'        => 12,
			'color_btn2_bg'            => '',
			'color_btn2_text'          => '#ffffff',
			'color_btn2_border'        => '#ffffff',
			'color_btn2_radius'        => 12,
			'color_mobile_bg'          => '#efefef',
			'color_btn1_bg_mobile'     => '',
			'color_btn1_text_mobile'   => '',
			'color_btn1_border_mobile' => '',
			'color_btn1_radius_mobile' => '',
			'color_btn2_bg_mobile'     => '',
			'color_btn2_text_mobile'   => '',
			'color_btn2_border_mobile' => '',
			'color_btn2_radius_mobile' => '',
		);

		$settings = get_option( self::OPTION_DESIGN, array() );
		if ( ! is_array( $settings ) ) {
			$settings = array();
		}

		return wp_parse_args( $settings, $defaults );
	}

	/**
	 * Get all settings merged from per-tab options.
	 *
	 * @return array<string, mixed>
	 */
	public function get_settings() {
		$settings = array_merge(
			$this->get_general_settings(),
			$this->get_design_settings()
		);

		/**
		 * Filter all settings (allows add-ons to inject custom settings).
		 *
		 * @param array<string, mixed> $settings Merged settings from all tabs.
		 * @return array<string, mixed>
		 */
		return apply_filters( 'aha_hero_slider_get_settings', $settings );
	}

	/**
	 * Get option group name for a given tab (allows customization via filter).
	 *
	 * @param string $tab Tab slug.
	 * @return string|null Option group name, or null if not found.
	 */
	public function get_option_group_for_tab( $tab ) {
		$option_groups = array(
			'general'   => 'aha_hero_slider_general_group',
			'design'    => 'aha_hero_slider_design_group',
			'shortcode' => null, // Read-only documentation tab
		);

		$group = isset( $option_groups[ $tab ] ) ? $option_groups[ $tab ] : null;

		/**
		 * Filter option group for a tab (allows add-ons to register their own option groups).
		 *
		 * @param string|null $group Option group name, or null.
		 * @param string      $tab   Tab slug.
		 * @return string|null
		 */
		return apply_filters( 'aha_hero_slider_tab_option_group', $group, $tab );
	}

	/**
	 * Render settings page.
	 */
	public function render_settings_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
		$active_tab = isset( $_GET['tab'] ) ? sanitize_key( wp_unslash( $_GET['tab'] ) ) : 'general';

		$tabs = array(
			'general'   => __( 'General', 'aha-hero-slider' ),
			'design'    => __( 'Design', 'aha-hero-slider' ),
			'shortcode' => __( 'Shortcode', 'aha-hero-slider' ),
		);

		/**
		 * Filter settings tabs.
		 *
		 * @param array<string, string> $tabs Tab slug => label.
		 */
		$tabs = apply_filters( 'aha_hero_slider_settings_tabs', $tabs );

		if ( ! array_key_exists( $active_tab, $tabs ) ) {
			$active_tab = 'general';
		}

		?>
		<div class="wrap">
			<?php include AHA_HERO_SLIDER_PATH . 'templates/admin/page-header.php'; ?>

			<?php if ( 'uninstall' === $active_tab ) : ?>
				<?php $this->render_uninstall_tab(); ?>
			<?php elseif ( 'shortcode' === $active_tab ) : ?>
				<div class="aha-hero-slider-tab-content active" data-tab="shortcode">
					<?php $this->render_shortcode_tab(); ?>
				</div>
			<?php else : ?>
				<?php $option_group = $this->get_option_group_for_tab( $active_tab ); ?>
				<?php if ( null !== $option_group ) : ?>
					<form action="options.php" method="post">
						<?php settings_fields( $option_group ); ?>
				<?php endif; ?>

				<div class="aha-hero-slider-tab-content <?php echo 'general' === $active_tab ? 'active' : ''; ?>" data-tab="general">
					<?php do_settings_sections( 'aha-hero-slider-general' ); ?>
				</div>

				<div class="aha-hero-slider-tab-content <?php echo 'design' === $active_tab ? 'active' : ''; ?>" data-tab="design">
					<?php do_settings_sections( 'aha-hero-slider-design' ); ?>
				</div>

				<?php
				foreach ( array_keys( $tabs ) as $tab_slug ) {
					if ( in_array( $tab_slug, $this->base_tab_slugs, true ) || 'uninstall' === $tab_slug ) {
						continue;
					}
					$tab_option_group = $this->get_option_group_for_tab( $tab_slug );
					?>
					<div class="aha-hero-slider-tab-content <?php echo $active_tab === $tab_slug ? 'active' : ''; ?>" data-tab="<?php echo esc_attr( $tab_slug ); ?>">
						<?php
						if ( null !== $tab_option_group ) {
							settings_fields( $tab_option_group );
						}
						do_action( 'aha_hero_slider_settings_tab_' . $tab_slug );
						?>
					</div>
					<?php
				}
				?>

				<?php if ( null !== $option_group ) : ?>
					<?php submit_button(); ?>
					</form>
				<?php endif; ?>

			<?php endif; ?>

			<?php include AHA_HERO_SLIDER_PATH . 'templates/admin/page-sidebar.php'; ?>
		</div>
		<?php
	}

	/**
	 * Shortcode tab: hero box, attribute tags, examples, and reference tables.
	 *
	 * @return void
	 */
	private function render_shortcode_tab() {
		$aha_hs_shortcode_attrs = array(
			'group',
			'autoplay_speed',
			'arrows',
			'radius',
			'transition',
			'infinite',
			'progress',
			'title_tag',
			'progress_track',
			'progress_fill',
			'arrow_bg',
			'arrow_icon',
			'bullet',
			'bullet_active',
			'overlay',
			'overlay_color',
			'overlay_opacity',
		);
		$aha_hs_settings_url_general = admin_url( 'admin.php?page=' . rawurlencode( AHA_HERO_SLIDER_ADMIN_SLUG ) . '&tab=general' );
		$aha_hs_settings_url_design  = admin_url( 'admin.php?page=' . rawurlencode( AHA_HERO_SLIDER_ADMIN_SLUG ) . '&tab=design' );
		include AHA_HERO_SLIDER_PATH . 'templates/admin/shortcode-tab.php';
	}

	/**
	 * Uninstall tab: preference for removing data when the plugin is deleted.
	 *
	 * @return void
	 */
	private function render_uninstall_tab() {
		$enabled = '1' === get_option( AHA_HERO_SLIDER_UNINSTALL_DELETE_DATA_OPTION, '0' );
		?>
		<div class="aha-hero-slider-uninstall-tab">
			<h2 class="title"><?php esc_html_e( 'Uninstall & data cleanup', 'aha-hero-slider' ); ?></h2>

			<div class="aha-hero-slider-uninstall-danger" role="alert">
				<p><strong><?php esc_html_e( 'Important', 'aha-hero-slider' ); ?></strong></p>
				<p><?php esc_html_e( 'WordPress only runs a full cleanup when you delete the plugin from Plugins → Installed Plugins ("Delete", not just "Deactivate"). This screen does not remove anything by itself — it only stores your choice for that moment.', 'aha-hero-slider' ); ?></p>
				<p><?php esc_html_e( 'If you enable the option below and then delete the plugin, all Hero slide posts, slide groups, and plugin settings will be removed permanently. Files you uploaded to the Media Library are not deleted automatically.', 'aha-hero-slider' ); ?></p>
			</div>

			<p class="description" style="max-width:720px;">
				<?php esc_html_e( 'By default, data is kept so you can reinstall later without losing slides. Enable the checkbox only if you want a clean database after uninstall.', 'aha-hero-slider' ); ?>
			</p>

			<form method="post" action="">
				<?php wp_nonce_field( 'aha_hs_uninstall_prefs', 'aha_hs_uninstall_prefs_nonce' ); ?>
				<input type="hidden" name="aha_hs_uninstall_prefs" value="1">

				<fieldset class="aha-hero-slider-uninstall-fieldset">
					<label class="aha-hero-slider-uninstall-label">
						<input type="checkbox" name="aha_hs_remove_data_on_uninstall" value="1" <?php checked( $enabled ); ?>>
						<span>
							<strong><?php esc_html_e( 'Remove all plugin data when the plugin is deleted', 'aha-hero-slider' ); ?></strong><br>
							<span class="description"><?php esc_html_e( 'Applies only after you confirm deletion on the Plugins screen. Safe to leave off if you might use this plugin again.', 'aha-hero-slider' ); ?></span>
						</span>
					</label>
				</fieldset>

				<p class="title" style="margin-top:1.5em;"><?php esc_html_e( 'What gets removed if this option is on', 'aha-hero-slider' ); ?></p>
				<ul class="aha-hero-slider-uninstall-list">
					<li><?php esc_html_e( 'All Hero slide posts (CPT) and their custom field data', 'aha-hero-slider' ); ?></li>
					<li><?php esc_html_e( 'All Slide groups (taxonomy terms)', 'aha-hero-slider' ); ?></li>
					<li><?php esc_html_e( 'Global slider settings stored in the database', 'aha-hero-slider' ); ?></li>
					<li><?php esc_html_e( 'This uninstall preference itself', 'aha-hero-slider' ); ?></li>
				</ul>
				<?php
				/**
				 * After the default uninstall list (extensions may print extra notes).
				 *
				 * @since 1.0.0
				 */
				do_action( 'aha_hero_slider_uninstall_tab_after_list' );
				?>

				<p class="description" style="margin-bottom:16px;">
					<?php esc_html_e( 'If the option is off, slides and settings may remain after delete. You can remove them manually from the database or reinstall the plugin.', 'aha-hero-slider' ); ?>
				</p>

				<?php submit_button( __( 'Save preference', 'aha-hero-slider' ) ); ?>
			</form>
		</div>
		<?php
	}
}