<?php
// PHP 7.4 compatible. No Composer. No build step. WordPress coding standards.
// F1-B: Bridge saved gs_theme-settings and gs_product-settings values into WP/WC hooks.
// Loaded at init priority 20 (after WooCommerce boots).

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

class SLBUILD_SettingsHooks {

	/**
	 * Map of section type slug ? field IDs that are actively read by WP/WC hooks.
	 * Passed to editor.js so it can show "connected" indicators on those fields.
	 *
	 * @return array<string, string[]>
	 */
	public static function get_connected_fields(): array {
		return array(
			'gs_theme-settings'   => array(
				'shop_columns', 'shop_per_page', 'show_shop_sidebar',
				'font_pairing', 'free_shipping_threshold',
				'primary_color', 'secondary_color', 'tertiary_color',
				'surface_color', 'on_surface_color', 'accent_color',
			),
			'gs_product-settings' => array(
				'atc_label',
			),
		);
	}

	public static function init(): void {
		// shop_columns — WC product archive column count
		$cols = (int) slbuild_global_setting( 'theme-settings', 'shop_columns', 0 );
		if ( $cols > 0 ) {
			add_filter( 'loop_shop_columns', static function() use ( $cols ) { return $cols; } );
		}

		// shop_per_page — products per archive page
		$per_page = (int) slbuild_global_setting( 'theme-settings', 'shop_per_page', 0 );
		if ( $per_page > 0 ) {
			add_filter( 'loop_shop_per_page', static function() use ( $per_page ) { return $per_page; } );
		}

		// show_shop_sidebar — add body class so CSS can toggle sidebar
		$sidebar = slbuild_global_setting( 'theme-settings', 'show_shop_sidebar', '' );
		if ( '' !== $sidebar ) {
			$has_sidebar = (bool) $sidebar;
			add_filter( 'body_class', static function( $classes ) use ( $has_sidebar ) {
				$classes[] = $has_sidebar ? 'slb-shop-sidebar' : 'slb-shop-no-sidebar';
				return $classes;
			} );
		}

		// font_pairing — enqueue Google Fonts if a pairing is chosen
		$font = slbuild_global_setting( 'theme-settings', 'font_pairing', '' );
		if ( '' !== $font && 'default' !== $font ) {
			add_action( 'wp_enqueue_scripts', static function() use ( $font ) {
				self::enqueue_font( $font );
			}, 5 );
		}

		// atc_label — WooCommerce add-to-cart text on product loop
		$atc = slbuild_global_setting( 'product-settings', 'atc_label', '' );
		if ( '' !== $atc ) {
			add_filter( 'woocommerce_product_add_to_cart_text', static function() use ( $atc ) { return esc_html( $atc ); } );
			add_filter( 'woocommerce_product_single_add_to_cart_text', static function() use ( $atc ) { return esc_html( $atc ); } );
		}

		// free_shipping_threshold — pass to JS for mini-cart progress bar
		$threshold = slbuild_global_setting( 'theme-settings', 'free_shipping_threshold', '' );
		if ( '' !== $threshold ) {
			$threshold_int = (int) $threshold;
			add_action( 'wp_enqueue_scripts', static function() use ( $threshold_int ) {
				wp_register_script( 'slbuild-data', false, array(), false, true ); // phpcs:ignore WordPress.WP.EnqueuedResourceParameters
				wp_enqueue_script( 'slbuild-data' );
				wp_add_inline_script( 'slbuild-data', 'window.slbuildFreeShipping=' . $threshold_int . ';' );
			}, 5 );
		}
	}

	/**
	 * Enqueue a Google Fonts URL for a named pairing.
	 *
	 * @param string $pairing Pairing slug matching gs_theme-settings font_pairing options.
	 */
	private static function enqueue_font( string $pairing ): void {
		$map = array(
			'inter'        => 'https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap',
			'playfair'     => 'https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Sans+3:wght@400;600&display=swap',
			'dm_sans'      => 'https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap',
			'nunito'       => 'https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap',
			'lora'         => 'https://fonts.googleapis.com/css2?family=Lora:wght@400;600&family=Open+Sans:wght@400;600&display=swap',
			'montserrat'   => 'https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap',
		);
		$url = $map[ $pairing ] ?? '';
		if ( $url ) {
			wp_enqueue_style( 'slbuild-font-' . esc_attr( $pairing ), $url, array(), null ); // phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion
		}
	}
}