<?php
/**
 * Frontend: button placement (classic hooks + blocks share ONE renderer), price/cart hiding, assets.
 *
 * @package BoringQuote
 */

namespace BoringQuote;

defined( 'ABSPATH' ) || exit;

/**
 * Class Frontend
 */
class Frontend {

	/**
	 * Quote list.
	 *
	 * @var QuoteList
	 */
	protected $list;

	/**
	 * Guard: button already printed for this product during this request.
	 *
	 * @var array
	 */
	protected $printed = array();

	/**
	 * Constructor.
	 *
	 * @param QuoteList $quote_list Quote list.
	 */
	public function __construct( QuoteList $quote_list ) {
		$this->list = $quote_list;

		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue' ) );

		// Classic themes.
		add_action( 'woocommerce_after_add_to_cart_button', array( $this, 'render_for_current_product' ) );
		// Out of stock / no price products: add-to-cart form is missing, use summary instead.
		add_action( 'woocommerce_single_product_summary', array( $this, 'render_fallback' ), 35 );

		// Block themes: same renderer appended to the add-to-cart-form block.
		add_filter( 'render_block_woocommerce/add-to-cart-form', array( $this, 'append_to_block' ) );

		// Hide prices / add-to-cart (catalog mode light).
		if ( 'yes' === Plugin::setting( 'hide_price', 'no' ) ) {
			add_filter( 'woocommerce_get_price_html', '__return_empty_string', 99 );
			add_filter( 'woocommerce_get_variation_price_html', '__return_empty_string', 99 );
		}
		if ( 'yes' === Plugin::setting( 'hide_add_to_cart', 'no' ) ) {
			add_filter( 'woocommerce_loop_add_to_cart_link', '__return_empty_string', 99 );
			// Block themes: product collections. Priority 5 so the Pro loop button (10) is still appended.
			add_filter( 'render_block_woocommerce/product-button', '__return_empty_string', 5 );
		}

		add_filter( 'body_class', array( $this, 'body_class' ) );
	}

	/**
	 * Enqueue assets and pass config to JS.
	 */
	public function enqueue() {
		wp_enqueue_style( 'bbquote-frontend', BBQUOTE_URL . 'assets/css/frontend.css', array(), BBQUOTE_VERSION );
		if ( 'yes' === Plugin::setting( 'hide_add_to_cart', 'no' ) && is_product() ) {
			// Hide the single add-to-cart button via CSS so variation selectors keep working.
			wp_add_inline_style( 'bbquote-frontend', '.single_add_to_cart_button,.wc-block-components-product-button__button,form.cart .quantity{display:none!important}' );
		}
		wp_enqueue_script( 'bbquote-frontend', BBQUOTE_URL . 'assets/js/frontend.js', array(), BBQUOTE_VERSION, true );
		wp_localize_script(
			'bbquote-frontend',
			'boringQuoteConfig',
			array(
				'restUrl' => esc_url_raw( rest_url( RestController::NAMESPACE ) ),
				'nonce'   => wp_create_nonce( 'wp_rest' ),
				'pageUrl' => Plugin::get_page_url(),
				'i18n'    => array(
					'chooseOptions' => __( 'Please choose product options first.', 'boring-quote' ),
					'viewList'      => __( 'View quote list', 'boring-quote' ),
					'error'         => __( 'Something went wrong. Please try again.', 'boring-quote' ),
					'added'         => __( 'Added to quote', 'boring-quote' ),
				),
			)
		);
	}

	/**
	 * Whether the button should be shown for a product in a given context.
	 *
	 * @param \WC_Product $product Product.
	 * @param string      $context 'single' (product page) or 'loop' (shop/category listings, used by Pro).
	 * @return bool
	 */
	public function should_show( $product, $context = 'single' ) {
		if ( ! $product instanceof \WC_Product ) {
			return false;
		}

		$types = 'loop' === $context ? array( 'simple' ) : array( 'simple', 'variable' );

		$show = in_array( $product->get_type(), $types, true )
			&& 'yes' !== $product->get_meta( '_bbquote_hide_button' )
			&& ( 'single' !== $context || 'yes' === Plugin::setting( 'show_on_single', 'yes' ) );

		/**
		 * Filter button visibility.
		 *
		 * @param bool        $show    Show flag.
		 * @param \WC_Product $product Product.
		 * @param string      $context single|loop.
		 */
		return (bool) apply_filters( 'bbquote_show_button', $show, $product, $context );
	}

	/**
	 * The ONE renderer used by every placement (classic hooks, blocks, shortcode, Pro loop).
	 *
	 * @param \WC_Product $product Product.
	 * @param string      $context single|loop.
	 * @return string HTML.
	 */
	public function render_button( $product, $context = 'single' ) {
		if ( ! $this->should_show( $product, $context ) ) {
			return '';
		}

		$guard = $context . '-' . $product->get_id();
		if ( isset( $this->printed[ $guard ] ) ) {
			return '';
		}
		$this->printed[ $guard ] = true;

		do_action( 'bbquote_before_button', $product, $context );

		// An emptied setting is saved as '', which would render a button without text.
		$label = trim( (string) Plugin::setting( 'button_label', '' ) );
		if ( '' === $label ) {
			$label = __( 'Request a quote', 'boring-quote' );
		}

		ob_start();
		wc_get_template(
			'button.php',
			array(
				'product'     => $product,
				'context'     => $context,
				'is_variable' => $product->is_type( 'variable' ),
				'in_list'     => ! $product->is_type( 'variable' ) && $this->list->exists( $product->get_id() ),
				'label'       => $label,
				'page_url'    => Plugin::get_page_url(),
			),
			'boring-quote/',
			BBQUOTE_TEMPLATE_PATH
		);
		return (string) ob_get_clean();
	}

	/**
	 * Classic hook callback.
	 */
	public function render_for_current_product() {
		global $product;
		echo $this->render_button( $product ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- template escapes.
	}

	/**
	 * Fallback when there is no add-to-cart form (out of stock, no price).
	 */
	public function render_fallback() {
		global $product;
		if ( $product instanceof \WC_Product && ( ! $product->is_purchasable() || ! $product->is_in_stock() ) ) {
			$this->render_for_current_product();
		}
	}

	/**
	 * Block themes: append button after the add-to-cart form block.
	 *
	 * @param string $content Block HTML.
	 * @return string
	 */
	public function append_to_block( $content ) {
		global $product;
		$current = $product instanceof \WC_Product ? $product : wc_get_product( get_the_ID() );
		return $current ? $content . $this->render_button( $current ) : $content;
	}


	/**
	 * Body class on the quote page.
	 *
	 * @param array $classes Classes.
	 * @return array
	 */
	public function body_class( $classes ) {
		$page_id = Plugin::get_page_id();
		if ( $page_id && is_page( $page_id ) ) {
			$classes[] = 'bbquote-quote-page';
		}
		return $classes;
	}
}