<?php
/**
 * Content Single Product - custom layout
 */

defined( 'ABSPATH' ) || exit;

global $product;

$product_id = $product ? $product->get_id() : 0;
$is_liked = $product_id ? matreshka_is_in_wishlist( $product_id ) : false;
$like_icon = $is_liked ? get_template_directory_uri() . '/assets/icons/Heart.svg' : get_template_directory_uri() . '/assets/icons/like.svg';
$product_title = get_the_title();

$image_url_exists = static function( $url ) {
    if ( ! $url ) {
        return false;
    }

    $uploads = wp_get_upload_dir();
    if ( empty( $uploads['baseurl'] ) || empty( $uploads['basedir'] ) ) {
        return true;
    }

    $base_url = trailingslashit( set_url_scheme( $uploads['baseurl'] ) );
    $image_url = set_url_scheme( $url );

    if ( strpos( $image_url, $base_url ) !== 0 ) {
        return true;
    }

    $relative_path = substr( $image_url, strlen( $base_url ) );
    $file_path = trailingslashit( $uploads['basedir'] ) . rawurldecode( $relative_path );

    return file_exists( $file_path );
};

$render_product_image_slide = static function( $attachment_id, $is_main = false ) use ( $product_title, $image_url_exists ) {
    $image_html = '';
    $placeholder_src = wc_placeholder_img_src( 'woocommerce_single' );

    if ( $attachment_id ) {
        foreach ( array( 'large', 'full' ) as $image_size ) {
            $image = wp_get_attachment_image_src( $attachment_id, $image_size );
            if ( ! $image || empty( $image[0] ) || ! $image_url_exists( $image[0] ) ) {
                continue;
            }

            $image_html = sprintf(
                '<img width="%d" height="%d" src="%s" alt="%s" class="product-image" loading="%s" decoding="async" data-fallback-src="%s"%s>',
                absint( $image[1] ),
                absint( $image[2] ),
                esc_url( $image[0] ),
                esc_attr( $product_title ),
                $is_main ? 'eager' : 'lazy',
                esc_url( $placeholder_src ),
                $is_main ? ' fetchpriority="high"' : ''
            );
            break;
        }
    }

    if ( ! $image_html ) {
        $image_html = sprintf(
            '<img src="%s" alt="%s" class="product-image product-image--placeholder" loading="%s" decoding="async" data-fallback-src="%s"%s>',
            esc_url( $placeholder_src ),
            esc_attr( $product_title ),
            $is_main ? 'eager' : 'lazy',
            esc_url( $placeholder_src ),
            $is_main ? ' fetchpriority="high"' : ''
        );
    }

    echo '<div class="product-image-wrapper product-page-slide">' . $image_html . '</div>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
};

?>
<!-- Matreshka custom content-single-product loaded -->
<?php
// Bread-crumbs (desktop only) per design: Home ● Category ● Product
$primary_cat = null;
$cats = wc_get_product_terms( $product->get_id(), 'product_cat', array( 'orderby' => 'menu_order', 'order' => 'ASC' ) );
if ( ! is_wp_error( $cats ) && ! empty( $cats ) ) {
    $max_depth = -1;
    foreach ( $cats as $t ) {
        $depth = is_taxonomy_hierarchical( 'product_cat' ) ? count( get_ancestors( $t->term_id, 'product_cat' ) ) : 0;
        if ( $depth > $max_depth ) {
            $max_depth  = $depth;
            $primary_cat = $t;
        }
    }
}
?>
<section class="bread-crumb d-none d-md-flex mt-4">
    <div class="container">
        <p class="montserrat-medium">
            <a href="<?php echo esc_url( home_url( '/' ) ); ?>" class="text-decoration-none text-dark"><?php echo esc_html__( 'Главная', 'matreshka' ); ?></a>
            <?php if ( $primary_cat ) : ?>
                <span class="dot">●</span>
                <a href="<?php echo esc_url( get_term_link( $primary_cat ) ); ?>" class="text-decoration-none text-dark"><?php echo esc_html( $primary_cat->name ); ?></a>
            <?php endif; ?>
            <span class="dot">●</span>
            <span class="bread-crumb-product"><?php the_title(); ?></span>
        </p>
    </div>
 </section>
<section class="d-md-none nav-container-like mt-2">
    <div class="container d-flex justify-content-between align-items-center">
        <a href="javascript:void(0)" class="ms-2" onclick="history.back();return false;">
            <img src="<?php echo esc_url( get_template_directory_uri() . '/assets/icons/AltArrowLeft.svg' ); ?>" alt="arrow left icon">
        </a>
        <a href="#" class="me-2" aria-label="like" data-product-id="<?php echo esc_attr( $product_id ); ?>">
            <img src="<?php echo esc_url( $like_icon ); ?>" alt="like icon" class="like-icon <?php echo $is_liked ? 'active' : ''; ?>">
        </a>
    </div>
</section>
<div class="product-page d-md-flex d-block">
    <div class="product-row product-page-slider">
        <?php
        // Main image
        $image_id = $product->get_image_id();
        $render_product_image_slide( $image_id, true );

        // Gallery images
        $gallery_ids = $product->get_gallery_image_ids();
        if ( ! empty( $gallery_ids ) ) {
            foreach ( $gallery_ids as $gid ) {
                if ( $gid ) {
                    $render_product_image_slide( $gid );
                }
            }
        }
        ?>
    </div>
    <div class="product-page-info ">
        <div class="product-page-titles">
			<div class="d-flex justify-content-between align-items-start">
				<div>
					<h3 class="montserrat-bold product-page-title">
						<?php the_title(); ?>
					</h3>
				</div>
				<?php 
				$percentage = matreshka_get_sale_percentage( $product );
				if ( $percentage ) {
					echo matreshka_get_sale_badge( $product, 'single' );
				} else {
					?>
					<a href="#" class="me-2 mt-2 d-md-block d-none" aria-label="like" data-product-id="<?php echo esc_attr( $product_id ); ?>">
						<img src="<?php echo esc_url( $like_icon ); ?>" alt="like icon" class="like-icon <?php echo $is_liked ? 'active' : ''; ?>" style="width: 30px; height: 30px; max-width: none;">
					</a>
					<?php
				}
				?>
			</div>
            <?php
			
            // Динамичный лейбл под заголовком из краткого описания товара
            $short_label = $product->get_short_description();
            // Применяем стандартный фильтр Woo и чистим теги для безопасного вывода внутри <h6>
            $short_label = apply_filters( 'woocommerce_short_description', $short_label );
            $short_label = trim( wp_strip_all_tags( (string) $short_label ) );
            if ( $short_label === '' ) {
                $short_label = esc_html__( 'Цена за 1 кг', 'matreshka' );
            }
            ?>
            <h6 class="montserrat-medium product-page-text"><?php echo esc_html( $short_label ); ?></h6>
            <?php wc_get_template( 'single-product/price.php' ); ?>
            <?php woocommerce_template_single_add_to_cart(); ?>
        </div>

        <div class="product-page-description">
            <div class="first">
                <h6 class="montserrat-bold ">Описание</h6>
                <?php
                // Полный контент (с форматированием)
                $full_content = apply_filters( 'the_content', get_post_field( 'post_content', get_the_ID() ) );
                // Текст без HTML для превью
                $plain_text   = trim( wp_strip_all_tags( $full_content ) );
                $strlen       = function_exists( 'mb_strlen' ) ? mb_strlen( $plain_text ) : strlen( $plain_text );
                $substr       = function_exists( 'mb_substr' ) ? 'mb_substr' : 'substr';
                $limit        = 250;
                $is_long      = $strlen > $limit;
                $preview_text = $is_long ? $substr( $plain_text, 0, $limit ) . '…' : $plain_text;
                ?>
                <div class="montserrat-regular product-description">
                    <?php if ( $is_long ) : ?>
                        <p class="desc-preview"><?php echo esc_html( $preview_text ); ?></p>
                        <div class="desc-full" style="display:none;">
                            <?php echo $full_content; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
                        </div>
                    <?php else : ?>
                        <div class="desc-full">
                            <?php echo $full_content; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
                        </div>
                    <?php endif; ?>
                </div>
                <?php if ( $is_long ) : ?>
                    <button class="btn btn-link montserrat-bold js-desc-toggle" type="button">Показать полностью</button>
                <?php endif; ?>
            </div>
            <div class="nutritional-value second">
                <h6 class="montserrat-semibold">Пищевая ценность на 100 г</h6>
                <div class="nutritional-value-colums">
                    <?php
                    // Выводим ACF поля, только если заполнены
                    $nutri = array(
                        'proteins' => get_field( 'proteins', $product->get_id() ),
                        'fats'     => get_field( 'fats', $product->get_id() ),
                        'carbs'    => get_field( 'carbs', $product->get_id() ),
                        'calories' => get_field( 'calories', $product->get_id() ),
                    );
                    $labels = array(
                        'proteins' => get_field( 'proteins_label', $product->get_id() ) ?: 'Белки',
                        'fats'     => get_field( 'fats_label', $product->get_id() ) ?: 'Жиры',
                        'carbs'    => get_field( 'carbs_label', $product->get_id() ) ?: 'Углеводы',
                        'calories' => get_field( 'calories_label', $product->get_id() ) ?: 'Ккал',
                    );
                    foreach ( $nutri as $key => $val ) {
                        if ( isset( $val ) && $val !== '' ) {
                            echo '<div class="montserrat-bold">' . esc_html( $val ) . '<p class="montserrat-semibold">' . esc_html( $labels[ $key ] ) . '</p></div>';
                        }
                    }
                    ?>
                </div>
            </div>
            <div class="product-characteristics third">
                <?php
                $chars = array(
                    'weight'        => 'Вес',
                    'storage_life'  => 'Срок хранения',
                    'storage'       => 'Условия хранения',
                    'country'       => 'Страна производства',
                );
                foreach ( $chars as $field => $label ) {
                    $val = get_field( $field, $product->get_id() );
                    if ( isset( $val ) && $val !== '' ) {
                        echo '<div class="characteristic-item">';
                        echo '<p class="montserrat-semibold">' . esc_html( $label ) . '</p>';
                        echo '<span class="w-100"></span>';
                        echo '<p class="montserrat-medium">' . esc_html( $val ) . '</p>';
                        echo '</div>';
                    }
                }
                ?>
            </div>
            <div class="alert alert-secondary montserrat-medium" role="alert">
                <img src="<?php echo esc_url( get_template_directory_uri() . '/assets/icons/InfoCircle.svg' ); ?>" alt="info circle icon" class="me-2">
                <p>Информация на упаковке может отличаться в зависимости от производителя</p>
            </div>
            <p class="montserrat-medium product-disclaimer">Вид товара может отличаться от представленных фотографий</p>
        </div>
    </div>
</div>