<?php
/**
 * Settings page.
 *
 * One option row (aumnexcart_settings) holds the entire serialized
 * settings array. Sub-keys are documented in get_defaults().
 *
 * Tabs: General, Display, Filter, Contact, Tools (CSV), Migration, Advanced.
 *
 * The screen adopts the shared Aum ecosystem ".aml-app" admin design system
 * (same as AumViso / AumLang) so the suite feels like one product. The page is
 * NOT under the WP "Settings" menu: when the AumCreate theme is active it mounts
 * under whichever top-level menu that theme reports (`aumcreate_admin_parent_slug()`,
 * "themes.php" since 2.11.0); otherwise it mounts as a submenu of the AumNexCart
 * product CPT's own top-level menu.
 *
 * Re-saving permalink-affecting fields (product_slug, category_slug)
 * triggers a flush_rewrite_rules on the next admin request via a
 * one-shot transient flag.
 */

defined( 'ABSPATH' ) || exit;

class AumNexCart_Settings {

	const OPTION_KEY     = 'aumnexcart_settings';
	const PAGE_SLUG      = 'aumnexcart-settings';
	const SETTINGS_GROUP = 'aumnexcart_settings_group';
	const NONCE_ACTION   = 'aumnexcart_settings_save';
	const FLUSH_FLAG     = 'aumnexcart_flush_needed';

	/** Menu page hook suffix, for targeted asset loading. */
	private $hook = '';

	/**
	 * Returns the default settings array. Used both for the option
	 * default and to fill in missing keys on read.
	 *
	 * @return array
	 */
	public static function get_defaults() {
		return array(
			'currency_symbol'        => '$',
			'currency_position'      => 'before', // before | after
			'product_slug'           => 'products',
			'label_singular'         => '',          // what a product is called on this site ("Piece"); empty = Product
			'label_plural'           => '',          // "Pieces"; empty = Products
			'category_label_singular' => '',         // "Collection"; empty = Product Category
			'category_label_plural'   => '',         // "Collections"; empty = Product Categories
			'category_slug'          => 'nexcart-category', // namespaced to avoid WooCommerce product_cat base clash
			'products_per_page'      => 12,
			'archive_columns'        => 3, // 2 | 3 | 4
			'show_price'             => 1,
			'show_category_badge'    => 1,
			'disable_css'            => 0,
			'enable_category_filter' => 1,
			'enable_price_filter'    => 0,
			'enable_search'          => 1,
			'enable_sort'            => 1,
			'filter_mode'            => 'url', // url | ajax
			'filterable_attributes'  => array(),
			'default_contact'        => array(),
			/*
			 * The enquiry list (1.1.0). `enquiry_page` is the page carrying `[aumnexcart_enquiry]` + a form;
			 * 0 = the feature is off and products end in a contact link as before. The two labels are what the
			 * add button says before and after; `enquiry_field` is the hidden form field the sheet writes into.
			 */
			'enquiry_page'           => 0,
			'enquiry_label'          => '',
			'enquiry_added_label'    => '',
			'enquiry_field'          => 'enquiry_items',
		);
	}

	/**
	 * Returns the merged settings (stored over defaults). Guarantees
	 * every documented key exists with a sane type.
	 *
	 * @return array
	 */
	public static function get_all() {
		$stored = get_option( self::OPTION_KEY, array() );
		if ( ! is_array( $stored ) ) {
			$stored = array();
		}
		return array_merge( self::get_defaults(), $stored );
	}

	/**
	 * Shortcut for a single setting with type-aware default.
	 *
	 * @param string $key
	 * @param mixed  $fallback
	 * @return mixed
	 */
	public static function get( $key, $fallback = null ) {
		$all = self::get_all();
		return array_key_exists( $key, $all ) ? $all[ $key ] : $fallback;
	}

	public function __construct() {
		add_action( 'admin_menu', array( $this, 'register_menu' ) );
		add_action( 'admin_init', array( $this, 'maybe_save' ) );
		add_action( 'admin_init', array( $this, 'maybe_flush_rewrites' ) );
	}

	// ------------------------------------
	// Menu mounting (Aum ecosystem pattern)
	// ------------------------------------

	/**
	 * Whether the AumCreate theme (parent or child) is active. Mirrors the
	 * detection used by AumViso and AumLang so the suite mounts consistently.
	 *
	 * @return bool
	 */
	private function is_aumcreate_theme() {
		$theme = wp_get_theme();
		return 'aumcreate' === $theme->get_template()
			|| false !== stripos( (string) $theme->get( 'Name' ), 'aumcreate' );
	}

	/**
	 * Registers the settings page outside the WP "Settings" menu:
	 * under the AumCreate theme menu when active, otherwise under the
	 * AumNexCart product CPT's own top-level menu.
	 */
	public function register_menu() {
		if ( $this->is_aumcreate_theme() ) {
			/*
			 * Under the AumCreate theme menu the item is labelled "NexCart" (a feature-area
			 * name, like AumViso's "SEO/GEO") — the product catalog itself lives in the
			 * separate "AumNexCart" CPT menu.
			 *
			 * 🔴 The parent slug is asked for, not hard-coded. AumCreate 2.11.0 moved its
			 * admin pages under Appearance, because wordpress.org does not allow a theme to
			 * create a top-level menu — so `aumcreate-settings` stopped being a top-level
			 * menu. `add_submenu_page()` still returns a normal hook suffix in that case and
			 * the entry still lands in `$submenu['aumcreate-settings']`, but that array has
			 * no menu to be rendered under: **this page disappears from the admin with no
			 * error of any kind.** Measured on 2026-09-30 — 83 menu items, "NexCart" not one
			 * of them, while the plugin reported itself as working.
			 *
			 * `function_exists()` keeps this working on older versions of the theme, where
			 * the function does not exist and the old slug is still the right answer.
			 */
			$parent = function_exists( 'aumcreate_admin_parent_slug' )
				? aumcreate_admin_parent_slug()
				: 'aumcreate-settings';

			$this->hook = (string) add_submenu_page(
				$parent,
				__( 'AumNexCart', 'aumnexcart' ),
				__( 'NexCart', 'aumnexcart' ),
				'manage_options',
				self::PAGE_SLUG,
				array( $this, 'render_page' )
			);
			return;
		}

		$this->hook = (string) add_submenu_page(
			'edit.php?post_type=' . AumNexCart_Post_Type::POST_TYPE,
			__( 'AumNexCart Settings', 'aumnexcart' ),
			__( 'Settings', 'aumnexcart' ),
			'manage_options',
			self::PAGE_SLUG,
			array( $this, 'render_page' )
		);
	}

	/**
	 * Processes the settings form submission. Validates the nonce
	 * and capability, then sanitizes each field according to its
	 * declared type before persisting.
	 */
	public function maybe_save() {
		if ( empty( $_POST['aumnexcart_settings_submit'] ) ) {
			return;
		}
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}
		check_admin_referer( self::NONCE_ACTION );

		$raw = isset( $_POST['aumnexcart'] ) && is_array( $_POST['aumnexcart'] )
			? map_deep( wp_unslash( $_POST['aumnexcart'] ), 'sanitize_textarea_field' )
			: array();

		$current = self::get_all();
		$active  = isset( $_POST['active_tab'] ) ? sanitize_key( wp_unslash( $_POST['active_tab'] ) ) : 'general';

		$old_product_slug  = $current['product_slug'];
		$old_category_slug = $current['category_slug'];

		switch ( $active ) {
			case 'general':
				$current['currency_symbol']    = isset( $raw['currency_symbol'] ) ? sanitize_text_field( $raw['currency_symbol'] ) : '$';
				$current['currency_position']  = isset( $raw['currency_position'] ) && 'after' === $raw['currency_position'] ? 'after' : 'before';
				$current['product_slug']       = isset( $raw['product_slug'] ) ? sanitize_title( $raw['product_slug'] ) : 'products';
				$current['label_singular']     = isset( $raw['label_singular'] ) ? sanitize_text_field( $raw['label_singular'] ) : '';
				$current['label_plural']       = isset( $raw['label_plural'] ) ? sanitize_text_field( $raw['label_plural'] ) : '';
				$current['category_label_singular'] = isset( $raw['category_label_singular'] ) ? sanitize_text_field( $raw['category_label_singular'] ) : '';
				$current['category_label_plural']   = isset( $raw['category_label_plural'] ) ? sanitize_text_field( $raw['category_label_plural'] ) : '';
				$current['category_slug']      = isset( $raw['category_slug'] ) ? sanitize_title( $raw['category_slug'] ) : 'nexcart-category';
				$current['products_per_page']  = isset( $raw['products_per_page'] ) ? max( 1, absint( $raw['products_per_page'] ) ) : 12;
				break;

			case 'display':
				$current['archive_columns']     = isset( $raw['archive_columns'] ) && in_array( (int) $raw['archive_columns'], array( 2, 3, 4 ), true )
					? (int) $raw['archive_columns']
					: 3;
				$current['show_price']          = empty( $raw['show_price'] ) ? 0 : 1;
				$current['show_category_badge'] = empty( $raw['show_category_badge'] ) ? 0 : 1;
				$current['disable_css']         = empty( $raw['disable_css'] ) ? 0 : 1;
				break;

			case 'filter':
				$current['enable_category_filter'] = empty( $raw['enable_category_filter'] ) ? 0 : 1;
				$current['enable_price_filter']    = empty( $raw['enable_price_filter'] ) ? 0 : 1;
				$current['enable_search']          = empty( $raw['enable_search'] ) ? 0 : 1;
				$current['enable_sort']            = empty( $raw['enable_sort'] ) ? 0 : 1;
				$current['filter_mode']            = isset( $raw['filter_mode'] ) && 'ajax' === $raw['filter_mode'] ? 'ajax' : 'url';

				$keys_raw = isset( $raw['filterable_attributes'] ) ? (string) $raw['filterable_attributes'] : '';
				$list     = array_filter( array_map( 'trim', preg_split( '/\r\n|\r|\n/', $keys_raw ) ) );
				$current['filterable_attributes'] = array_values( array_map( 'sanitize_text_field', $list ) );
				break;

			case 'contact':
				$rows  = isset( $raw['default_contact'] ) && is_array( $raw['default_contact'] ) ? $raw['default_contact'] : array();
				$clean = array();
				foreach ( $rows as $row ) {
					$item = AumNexCart_Meta::normalize_contact_row( $row, true );
					if ( $item ) {
						unset( $item['href'] );
						$clean[] = $item;
					}
				}
				$current['default_contact'] = $clean;
				break;

			case 'enquiry':
				$current['enquiry_page']        = isset( $raw['enquiry_page'] ) ? absint( $raw['enquiry_page'] ) : 0;
				$current['enquiry_label']       = isset( $raw['enquiry_label'] ) ? sanitize_text_field( $raw['enquiry_label'] ) : '';
				$current['enquiry_added_label'] = isset( $raw['enquiry_added_label'] ) ? sanitize_text_field( $raw['enquiry_added_label'] ) : '';
				$field = isset( $raw['enquiry_field'] ) ? sanitize_key( $raw['enquiry_field'] ) : '';
				$current['enquiry_field']       = '' !== $field ? $field : 'enquiry_items';
				break;

			case 'advanced':
				break;
		}

		update_option( self::OPTION_KEY, $current );

		if ( $current['product_slug'] !== $old_product_slug || $current['category_slug'] !== $old_category_slug ) {
			set_transient( self::FLUSH_FLAG, 1, MINUTE_IN_SECONDS );
		}

		add_settings_error(
			self::PAGE_SLUG,
			'aumnexcart_saved',
			__( 'Settings saved.', 'aumnexcart' ),
			'updated'
		);

		wp_safe_redirect( self::page_url( $active, array( 'updated' => 1 ) ) );
		exit;
	}

	/**
	 * If the permalink slugs changed on the previous request, flush
	 * rewrite rules once now that the CPT has been re-registered
	 * with the new slugs.
	 */
	public function maybe_flush_rewrites() {
		if ( get_transient( self::FLUSH_FLAG ) ) {
			flush_rewrite_rules();
			delete_transient( self::FLUSH_FLAG );
		}
	}

	// ------------------------------------
	// Tabs + URL helpers
	// ------------------------------------

	/** key => [ label, dashicon, savable ]. */
	private function tabs() {
		return array(
			'general'   => array( 'label' => __( 'General', 'aumnexcart' ),   'icon' => 'dashicons-admin-generic',  'savable' => true ),
			'display'   => array( 'label' => __( 'Display', 'aumnexcart' ),   'icon' => 'dashicons-layout',         'savable' => true ),
			'filter'    => array( 'label' => __( 'Filter', 'aumnexcart' ),    'icon' => 'dashicons-filter',         'savable' => true ),
			'contact'   => array( 'label' => __( 'Contact', 'aumnexcart' ),   'icon' => 'dashicons-email-alt',      'savable' => true ),
			'enquiry'   => array( 'label' => __( 'Enquiry', 'aumnexcart' ),   'icon' => 'dashicons-clipboard',      'savable' => true ),
			'tools'     => array( 'label' => __( 'Tools', 'aumnexcart' ),     'icon' => 'dashicons-admin-tools',    'savable' => false ),
			'migration' => array( 'label' => __( 'Migration', 'aumnexcart' ), 'icon' => 'dashicons-migrate',        'savable' => false ),
			'advanced'  => array( 'label' => __( 'Advanced', 'aumnexcart' ),  'icon' => 'dashicons-admin-settings', 'savable' => true ),
		);
	}

	/**
	 * Base/working URL of this settings page, parent-agnostic (works whether
	 * mounted under the AumCreate theme menu or the product CPT menu). Public
	 * + static so the Tools / Migration subsystems can build redirect URLs to
	 * their own tabs without knowing where the page is mounted.
	 *
	 * @param string $tab   Optional tab key to append.
	 * @param array  $extra Optional extra query args.
	 * @return string
	 */
	public static function page_url( $tab = '', $extra = array() ) {
		/*
		 * menu_page_url() runs its result through esc_url() before returning it, so the separators come
		 * back as `&#038;`. Handing that to add_query_arg() corrupts the URL: it reads `#038;page=…` as a
		 * fragment, lifts it off the end, and the rebuilt link has lost `page=` altogether — which is why
		 * every settings tab link and every post-save redirect landed on the product list instead of this
		 * screen. Decode it back to a plain URL here; the callers escape at output (the tab links use
		 * esc_url(), and wp_safe_redirect() must be given an unescaped URL).
		 */
		$base = wp_specialchars_decode( menu_page_url( self::PAGE_SLUG, false ) );
		if ( ! $base ) {
			// Fallback before the menu is fully registered.
			$base = admin_url( 'admin.php?page=' . self::PAGE_SLUG );
		}
		$args = array();
		if ( '' !== $tab ) {
			$args['tab'] = $tab;
		}
		if ( ! empty( $extra ) ) {
			$args = array_merge( $args, $extra );
		}
		return ! empty( $args ) ? add_query_arg( $args, $base ) : $base;
	}

	// ------------------------------------
	// Render
	// ------------------------------------

	/**
	 * Renders the settings page HTML using the shared .aml-app shell.
	 */
	public function render_page() {
		if ( ! current_user_can( 'manage_options' ) ) {
			return;
		}

		$tabs   = $this->tabs();
		$active = isset( $_GET['tab'] ) ? sanitize_key( wp_unslash( $_GET['tab'] ) ) : 'general';
		if ( ! isset( $tabs[ $active ] ) ) {
			$active = 'general';
		}
		/*
		 * There is no licence gate here, and there is no licence anywhere in this plugin.
		 *
		 * It used to lock an unlicensed site onto a "License" tab. That went in 2026-08-26 (the plugin is
		 * part of a suite, never sold on its own), leaving only a read of the theme's licence code for the
		 * self-hosted update check — and that went too when the plugin moved to wordpress.org, where
		 * updates come from .org and there is nothing to authorise.
		 */
		$settings   = self::get_all();
		$is_savable = ! empty( $tabs[ $active ]['savable'] );
		?>
		<div class="wrap aml-app aumnexcart-app">
			<div class="aml-header">
				<span class="aml-logo" aria-hidden="true"><span class="dashicons dashicons-products"></span></span>
				<div class="aml-header-text">
					<h1 class="aml-title">
						<?php esc_html_e( 'AumNexCart', 'aumnexcart' ); ?>
						<span class="aml-badge">v<?php echo esc_html( AUMNEXCART_VERSION ); ?></span>
					</h1>
					<p class="aml-subtitle"><?php esc_html_e( 'Universal product catalog with inquiry actions — part of the AumViso GEO suite.', 'aumnexcart' ); ?></p>
				</div>
			</div>
			<hr class="wp-header-end">

			<?php settings_errors( self::PAGE_SLUG ); ?>
			<?php if ( isset( $_GET['updated'] ) ) : ?>
				<div class="notice notice-success is-dismissible"><p><?php esc_html_e( 'Settings saved.', 'aumnexcart' ); ?></p></div>
			<?php endif; ?>

			<nav class="aml-tabs" aria-label="<?php esc_attr_e( 'AumNexCart sections', 'aumnexcart' ); ?>">
				<?php foreach ( $tabs as $slug => $tab ) : ?>
					<a class="aml-tab<?php echo $slug === $active ? ' is-active' : ''; ?>"
						href="<?php echo esc_url( self::page_url( $slug ) ); ?>"
						<?php echo $slug === $active ? ' aria-current="page"' : ''; ?>>
						<span class="dashicons <?php echo esc_attr( $tab['icon'] ); ?>" aria-hidden="true"></span>
						<?php echo esc_html( $tab['label'] ); ?>
					</a>
				<?php endforeach; ?>
			</nav>

			<div class="aml-tab-body">
				<?php
				if ( $is_savable ) {
					echo '<form method="post" action="">';
					wp_nonce_field( self::NONCE_ACTION );
					echo '<input type="hidden" name="active_tab" value="' . esc_attr( $active ) . '" />';
				}

				switch ( $active ) {
					case 'general':
						$this->render_general_tab( $settings );
						break;
					case 'display':
						$this->render_display_tab( $settings );
						break;
					case 'filter':
						$this->render_filter_tab( $settings );
						break;
					case 'contact':
						$this->render_contact_tab( $settings );
						break;
					case 'enquiry':
						$this->render_enquiry_tab( $settings );
						break;
					case 'tools':
						AumNexCart_Tools::render_tab();
						break;
					case 'migration':
						AumNexCart_Migration::render_tab();
						break;
					case 'advanced':
						$this->render_advanced_tab();
						break;
				}

				if ( $is_savable ) {
					echo '<p class="aml-actions-bar"><button type="submit" class="aml-btn aml-btn-primary" name="aumnexcart_settings_submit" value="1">' . esc_html__( 'Save Changes', 'aumnexcart' ) . '</button></p>';
					echo '</form>';
				}
				?>
			</div>
		</div>
		<?php
	}

	/**
	 * A single on/off toggle switch row (shared .aml-switch markup).
	 */
	private function switch_row( $name, $checked, $label, $desc = '' ) {
		?>
		<label class="aml-switch-row">
			<span class="aml-switch">
				<input type="checkbox" name="<?php echo esc_attr( $name ); ?>" value="1" <?php checked( (int) $checked, 1 ); ?> />
				<span class="aml-track" aria-hidden="true"></span>
			</span>
			<span class="aml-switch-label"><?php echo esc_html( $label ); ?><?php echo '' !== $desc ? ' <code>' . esc_html( $desc ) . '</code>' : ''; ?></span>
		</label>
		<?php
	}

	private function render_general_tab( $s ) {
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-money-alt"></span><?php esc_html_e( 'Currency', 'aumnexcart' ); ?></h2>
			<div class="aml-field-grid">
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-currency"><?php esc_html_e( 'Currency Symbol', 'aumnexcart' ); ?></label>
					<input id="aum-nx-currency" type="text" class="regular-text" name="aumnexcart[currency_symbol]" value="<?php echo esc_attr( $s['currency_symbol'] ); ?>" />
				</div>
				<div class="aml-field">
					<label class="aml-label"><?php esc_html_e( 'Currency Position', 'aumnexcart' ); ?></label>
					<label class="aml-radio"><input type="radio" name="aumnexcart[currency_position]" value="before" <?php checked( $s['currency_position'], 'before' ); ?> /> <?php esc_html_e( 'Before (e.g. $100)', 'aumnexcart' ); ?></label>
					<label class="aml-radio"><input type="radio" name="aumnexcart[currency_position]" value="after" <?php checked( $s['currency_position'], 'after' ); ?> /> <?php esc_html_e( 'After (e.g. 100$)', 'aumnexcart' ); ?></label>
				</div>
			</div>
		</div>

		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-admin-links"></span><?php esc_html_e( 'Permalinks &amp; Listing', 'aumnexcart' ); ?></h2>
			<div class="aml-field-grid">
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-label-one"><?php esc_html_e( 'What a product is called (singular)', 'aumnexcart' ); ?></label>
					<input id="aum-nx-label-one" type="text" class="regular-text" name="aumnexcart[label_singular]" value="<?php echo esc_attr( $s['label_singular'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'Product', 'aumnexcart' ); ?>" />
					<p class="aml-field-hint"><?php esc_html_e( '"Piece", "Model", "Line" — used in the admin menu, the breadcrumb and the archive title.', 'aumnexcart' ); ?></p>
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-label-many"><?php esc_html_e( 'Plural', 'aumnexcart' ); ?></label>
					<input id="aum-nx-label-many" type="text" class="regular-text" name="aumnexcart[label_plural]" value="<?php echo esc_attr( $s['label_plural'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'Products', 'aumnexcart' ); ?>" />
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-pslug"><?php esc_html_e( 'Product URL Slug', 'aumnexcart' ); ?></label>
					<input id="aum-nx-pslug" type="text" class="regular-text" name="aumnexcart[product_slug]" value="<?php echo esc_attr( $s['product_slug'] ); ?>" />
					<p class="aml-field-hint"><?php esc_html_e( 'Archive URL will be /your-slug/. Saving flushes rewrite rules automatically.', 'aumnexcart' ); ?></p>
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-clabel-one"><?php esc_html_e( 'What a category is called (singular)', 'aumnexcart' ); ?></label>
					<input id="aum-nx-clabel-one" type="text" class="regular-text" name="aumnexcart[category_label_singular]" value="<?php echo esc_attr( $s['category_label_singular'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'Product Category', 'aumnexcart' ); ?>" />
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-clabel-many"><?php esc_html_e( 'Plural', 'aumnexcart' ); ?></label>
					<input id="aum-nx-clabel-many" type="text" class="regular-text" name="aumnexcart[category_label_plural]" value="<?php echo esc_attr( $s['category_label_plural'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'Product Categories', 'aumnexcart' ); ?>" />
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-cslug"><?php esc_html_e( 'Category URL Slug', 'aumnexcart' ); ?></label>
					<input id="aum-nx-cslug" type="text" class="regular-text" name="aumnexcart[category_slug]" value="<?php echo esc_attr( $s['category_slug'] ); ?>" />
				</div>
				<div class="aml-field">
					<label class="aml-label" for="aum-nx-ppp"><?php esc_html_e( 'Products Per Page', 'aumnexcart' ); ?></label>
					<input id="aum-nx-ppp" type="number" min="1" name="aumnexcart[products_per_page]" value="<?php echo esc_attr( $s['products_per_page'] ); ?>" />
				</div>
			</div>
		</div>
		<?php
	}

	private function render_display_tab( $s ) {
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-layout"></span><?php esc_html_e( 'Archive Layout', 'aumnexcart' ); ?></h2>
			<div class="aml-field">
				<label class="aml-label"><?php esc_html_e( 'Archive Columns', 'aumnexcart' ); ?></label>
				<?php foreach ( array( 2, 3, 4 ) as $n ) : ?>
					<label class="aml-radio"><input type="radio" name="aumnexcart[archive_columns]" value="<?php echo esc_attr( $n ); ?>" <?php checked( $s['archive_columns'], $n ); ?> /> <?php echo esc_html( $n ); ?></label>
				<?php endforeach; ?>
			</div>
		</div>

		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-visibility"></span><?php esc_html_e( 'Visibility', 'aumnexcart' ); ?></h2>
			<?php
			$this->switch_row( 'aumnexcart[show_price]', $s['show_price'], __( 'Display price on archive cards and product page', 'aumnexcart' ) );
			$this->switch_row( 'aumnexcart[show_category_badge]', $s['show_category_badge'], __( 'Display the category label above product titles', 'aumnexcart' ) );
			$this->switch_row( 'aumnexcart[disable_css]', $s['disable_css'], __( 'Disable plugin frontend stylesheet (use your theme styles instead)', 'aumnexcart' ) );
			?>
		</div>
		<?php
	}

	private function render_filter_tab( $s ) {
		$attrs_text = is_array( $s['filterable_attributes'] ) ? implode( "\n", $s['filterable_attributes'] ) : '';
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-filter"></span><?php esc_html_e( 'Filter Bar', 'aumnexcart' ); ?></h2>
			<?php
			$this->switch_row( 'aumnexcart[enable_category_filter]', $s['enable_category_filter'], __( 'Show category filter on archive page', 'aumnexcart' ) );
			$this->switch_row( 'aumnexcart[enable_price_filter]', $s['enable_price_filter'], __( 'Show price filter (only applies to range-mode products)', 'aumnexcart' ) );
			$this->switch_row( 'aumnexcart[enable_search]', $s['enable_search'], __( 'Show keyword search box', 'aumnexcart' ) );
			$this->switch_row( 'aumnexcart[enable_sort]', $s['enable_sort'], __( 'Show sort dropdown (newest, name, price)', 'aumnexcart' ) );
			?>
			<div class="aml-field" style="margin-top:14px;">
				<label class="aml-label"><?php esc_html_e( 'Filter Mode', 'aumnexcart' ); ?></label>
				<label class="aml-radio"><input type="radio" name="aumnexcart[filter_mode]" value="url" <?php checked( $s['filter_mode'], 'url' ); ?> /> <?php esc_html_e( 'URL parameters (page reload)', 'aumnexcart' ); ?></label>
				<label class="aml-radio"><input type="radio" name="aumnexcart[filter_mode]" value="ajax" <?php checked( $s['filter_mode'], 'ajax' ); ?> /> <?php esc_html_e( 'AJAX (no reload)', 'aumnexcart' ); ?></label>
			</div>
		</div>

		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-editor-ul"></span><?php esc_html_e( 'Filterable Attributes', 'aumnexcart' ); ?></h2>
			<div class="aml-field">
				<label class="aml-label" for="aum-nx-filterable"><?php esc_html_e( 'Filterable Attribute Keys', 'aumnexcart' ); ?></label>
				<textarea id="aum-nx-filterable" name="aumnexcart[filterable_attributes]" rows="6" class="large-text code"><?php echo esc_textarea( $attrs_text ); ?></textarea>
				<p class="aml-field-hint"><?php esc_html_e( 'One key per line, matched case-insensitively against product attributes. Example: Material, Size, Voltage. Re-save a product after changing this list to rebuild its filter index.', 'aumnexcart' ); ?></p>
			</div>
		</div>
		<?php
	}

	private function render_contact_tab( $s ) {
		$rows = is_array( $s['default_contact'] ) ? $s['default_contact'] : array();
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-email-alt"></span><?php esc_html_e( 'Default Contact Actions', 'aumnexcart' ); ?></h2>
			<p class="aml-card-desc"><?php esc_html_e( 'These default contact actions are pre-filled when creating a new product. Each product can override them in the Contact Actions box.', 'aumnexcart' ); ?></p>

			<div id="aumnexcart-default-contact-list" class="aumnexcart-contact-list" data-context="settings">
				<?php
				if ( empty( $rows ) ) {
					echo '<p class="aumnexcart-empty">' . esc_html__( 'No default actions yet.', 'aumnexcart' ) . '</p>';
				} else {
					foreach ( $rows as $i => $row ) {
						$this->render_contact_row( $i, $row );
					}
				}
				?>
			</div>

			<p>
				<button type="button" class="aml-btn" id="aumnexcart-add-default-contact"><span class="dashicons dashicons-plus-alt2"></span><?php esc_html_e( 'Add Default Action', 'aumnexcart' ); ?></button>
			</p>

			<script type="text/template" id="tmpl-aumnexcart-contact-row">
				<?php $this->render_contact_row( '__index__', array( 'type' => 'email', 'label' => '', 'value' => '' ) ); ?>
			</script>
		</div>
		<?php
	}

	/**
	 * Renders a single contact row for the settings page. Same markup
	 * shape as the per-product Contact meta box so one JS file covers
	 * both. The input name prefix is aumnexcart[default_contact][N][field].
	 */
	private function render_contact_row( $index, $row ) {
		$type  = isset( $row['type'] ) ? $row['type'] : 'email';
		$label = isset( $row['label'] ) ? $row['label'] : '';
		$value = isset( $row['value'] ) ? $row['value'] : '';
		?>
		<div class="aumnexcart-contact-row" data-index="<?php echo esc_attr( $index ); ?>">
			<select name="aumnexcart[default_contact][<?php echo esc_attr( $index ); ?>][type]" class="aumnexcart-contact-type">
				<option value="email" <?php selected( $type, 'email' ); ?>><?php esc_html_e( 'Email', 'aumnexcart' ); ?></option>
				<option value="whatsapp" <?php selected( $type, 'whatsapp' ); ?>><?php esc_html_e( 'WhatsApp', 'aumnexcart' ); ?></option>
				<option value="custom" <?php selected( $type, 'custom' ); ?>><?php esc_html_e( 'Custom URL', 'aumnexcart' ); ?></option>
			</select>
			<input type="text" placeholder="<?php esc_attr_e( 'Button label', 'aumnexcart' ); ?>" name="aumnexcart[default_contact][<?php echo esc_attr( $index ); ?>][label]" value="<?php echo esc_attr( $label ); ?>" />
			<input type="text" placeholder="<?php esc_attr_e( 'Email / phone / URL', 'aumnexcart' ); ?>" name="aumnexcart[default_contact][<?php echo esc_attr( $index ); ?>][value]" value="<?php echo esc_attr( $value ); ?>" />
			<button type="button" class="button-link-delete aumnexcart-contact-remove"><?php esc_html_e( 'Remove', 'aumnexcart' ); ?></button>
		</div>
		<?php
	}


	/**
	 * The enquiry list: which page carries it, what the add button says, which form field receives the summary.
	 */
	private function render_enquiry_tab( $s ) {
		$page = (int) ( $s['enquiry_page'] ?? 0 );
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-clipboard"></span><?php esc_html_e( 'Enquiry list', 'aumnexcart' ); ?></h2>
			<p class="aml-card-desc">
				<?php
				printf(
					/* translators: 1: enquiry sheet shortcode. 2: the form shortcode provided by Aumframe. */
					esc_html__( 'Let visitors collect products across the site and send them as one enquiry. Choose the page that holds the list; on that page place the shortcode %1$s followed by an %2$s that has a hidden field with the name below. Leave the page empty to keep plain contact links.', 'aumnexcart' ),
					'[' . esc_html( AumNexCart_Enquiry::SHORTCODE_SHEET ) . ']',
					'[aumframe_form]'
				);
				?>
			</p>

			<div class="aml-field">
				<label class="aml-label" for="aum-nx-enquiry-page"><?php esc_html_e( 'Enquiry page', 'aumnexcart' ); ?></label>
				<?php
				wp_dropdown_pages(
					array(
						'name'              => 'aumnexcart[enquiry_page]',
						'id'                => 'aum-nx-enquiry-page',
						/*
						 * wp_dropdown_pages() echoes by default, so everything handed to it is output:
						 * the label goes into an <option>, and the id into a selected attribute.
						 */
						'selected'          => (int) $page,
						'show_option_none'  => esc_html__( '— Off (contact links only) —', 'aumnexcart' ),
						'option_none_value' => '0',
					)
				);
				?>
				<p class="aml-field-hint">
					<?php
					/*
					 * The parameter name comes from the constant, not from the sentence:
					 * it was renamed once (aum_enquiry_add -> aumnexcart_enquiry_add) and
					 * that rename silently invalidated the translated string, because the
					 * old name was part of the msgid. Names that can be renamed do not
					 * belong inside a msgid.
					 */
					printf(
						/* translators: 1: URL query parameter name. 2: badge shortcode. 3: enquiry sheet shortcode. */
						esc_html__( 'The add links point here: /page/?%1$s=ID. Put the shortcodes %2$s (header badge) and %3$s (the sheet) where you need them.', 'aumnexcart' ),
						esc_html( AumNexCart_Enquiry::QUERY_ADD ),
						'[aumnexcart_enquiry_link]',
						'[aumnexcart_enquiry]'
					);
					?>
				</p>
			</div>

			<div class="aml-field">
				<label class="aml-label" for="aum-nx-enquiry-label"><?php esc_html_e( 'Add button label', 'aumnexcart' ); ?></label>
				<input id="aum-nx-enquiry-label" type="text" class="regular-text" name="aumnexcart[enquiry_label]" value="<?php echo esc_attr( $s['enquiry_label'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'Add to enquiry', 'aumnexcart' ); ?>" />
			</div>
			<div class="aml-field">
				<label class="aml-label" for="aum-nx-enquiry-added"><?php esc_html_e( 'Label once added', 'aumnexcart' ); ?></label>
				<input id="aum-nx-enquiry-added" type="text" class="regular-text" name="aumnexcart[enquiry_added_label]" value="<?php echo esc_attr( $s['enquiry_added_label'] ?? '' ); ?>" placeholder="<?php esc_attr_e( 'In your enquiry', 'aumnexcart' ); ?>" />
			</div>
			<div class="aml-field">
				<label class="aml-label" for="aum-nx-enquiry-field"><?php esc_html_e( 'Form field name', 'aumnexcart' ); ?></label>
				<input id="aum-nx-enquiry-field" type="text" class="regular-text" name="aumnexcart[enquiry_field]" value="<?php echo esc_attr( $s['enquiry_field'] ?? 'enquiry_items' ); ?>" />
				<p class="aml-field-hint"><?php esc_html_e( 'The hidden field of the form on the enquiry page that receives the list as text (one line per item). Give the field a label so it shows in the mail and the entries screen.', 'aumnexcart' ); ?></p>
			</div>
		</div>
		<?php
	}

	private function render_advanced_tab() {
		?>
		<div class="aml-card">
			<h2 class="aml-card-h"><span class="dashicons dashicons-media-code"></span><?php esc_html_e( 'Template Override', 'aumnexcart' ); ?></h2>
			<p><?php esc_html_e( 'To override any plugin template, copy it from:', 'aumnexcart' ); ?></p>
			<p><code><?php echo esc_html( AUMNEXCART_PATH . 'templates/' ); ?></code></p>
			<p><?php esc_html_e( 'to your theme at:', 'aumnexcart' ); ?></p>
			<p><code><?php echo esc_html( get_template_directory() . '/aumnexcart/' ); ?></code></p>
		</div>
		<?php
	}
}