<?php

/**
 * Featured Resource Block: Displays a selected post or the latest blog post as a featured tile.
 */
if (function_exists('render_block_preview_image') && render_block_preview_image($block, 'Featured Resource block preview')) {
    return;
}
$featured_post_selection = get_field('featured_post');
$custom_cta_label = get_field('cta_label');
$external_url = get_field('external_url');
$target_post_id = false;
if ($featured_post_selection) {
    if (is_array($featured_post_selection)) {
        $first_item = $featured_post_selection[0];
        if (is_object($first_item)) {
            $target_post_id = isset($first_item->ID) ? $first_item->ID : false;
        } else {
            $target_post_id = $first_item;
        }
    } elseif (is_object($featured_post_selection)) {
        $target_post_id = isset($featured_post_selection->ID) ? $featured_post_selection->ID : false;
    } else {
        $target_post_id = $featured_post_selection;
    }
}
if (!$target_post_id) {
    $fallback_post_type = 'post';
    $current_page_id = get_the_ID();

    if ($current_page_id) {
        $current_slug = get_post_field('post_name', $current_page_id);
        if ($current_slug && post_type_exists($current_slug)) {
            $fallback_post_type = $current_slug;
        }
    }

    $latest_post_query = get_posts(array(
        'post_type' => $fallback_post_type,
        'posts_per_page' => 1,
        'post_status' => 'publish',
    ));

    if (!empty($latest_post_query) && isset($latest_post_query[0]->ID)) {
        $target_post_id = $latest_post_query[0]->ID;
    }
}
if ($target_post_id):
    $cta_heading = get_the_title($target_post_id);
    $raw_excerpt = trim(
        get_post_field('post_excerpt', $target_post_id)
    );
    if (isset($raw_excerpt) && !empty($raw_excerpt)) {
        $cta_description = wp_trim_words(
            wp_strip_all_tags($raw_excerpt),
            25,
            '.'
        );
    } else {
        $raw_content = get_post_field(
            'post_content',
            $target_post_id
        );
        $cta_description = wp_trim_words(
            wp_strip_all_tags(
                strip_shortcodes($raw_content)
            ),
            25,
            '.'
        );
    }
    if (isset($external_url) && !empty($external_url)) {
        $card_url = $external_url;
    } else {
        $card_url = get_permalink($target_post_id);
    }

    $categories = get_the_terms($target_post_id, 'resource_category');
    if (!empty($categories) && !is_wp_error($categories)) :
        $first_category = $categories[0];
        $type_label_text = !empty($first_category->name) ? esc_html($first_category->name) : 'N/A';
    endif;

    if (isset($custom_cta_label) && !empty($custom_cta_label)) {
        $cta_link_title = $custom_cta_label;
    } else {
        $cta_link_title = 'Read More';
    }
    $image_id = get_post_thumbnail_id($target_post_id);
    $image_url = '';
    $image_alt = $cta_heading;
    if (isset($image_id) && !empty($image_id)) {
        $image_src = wp_get_attachment_image_src(
            $image_id,
            'large'
        );
        if (
            isset($image_src[0]) &&
            !empty($image_src[0])
        ) {
            $image_url = $image_src[0];
        }
        $alt_text = get_post_meta(
            $image_id,
            '_wp_attachment_image_alt',
            true
        );
        if (isset($alt_text) && !empty($alt_text)) {
            $image_alt = $alt_text;
        }
    }
    $base_class = 'featured-resource sk-section-spacing';
    $custom_class = isset($block['className']) ? $block['className'] : '';
    $className = trim("$base_class $custom_class");
    ?>
    <section class="<?php echo esc_attr(trim($className)); ?>" data-aos="fade-up">
        <div class="container">
            <a href="<?php echo esc_url($card_url); ?>" class="featured-resource-tile">
                <div class="featured-resource-image">
                    <div class="featured-image">
                        <?php if (isset($image_url) && !empty($image_url)): ?>
                            <img src="<?php echo esc_url($image_url); ?>" alt="<?php echo esc_attr($image_alt); ?>">
                        <?php endif; ?>
                    </div>
                </div>
                <div class="featured-resource-content">
                    <?php if (isset($type_label_text) && !empty($type_label_text)): ?>
                        <span class="resource-type-tag">
                            <?php echo esc_html($type_label_text); ?>
                        </span>
                    <?php endif; ?>
                    <?php if (isset($cta_heading) && !empty($cta_heading)): ?>
                        <h2>
                            <?php echo esc_html($cta_heading); ?>
                        </h2>
                    <?php endif; ?>
                    <?php if (isset($cta_description) && !empty($cta_description)): ?>
                        <p>
                            <?php echo esc_html($cta_description); ?>
                        </p>
                    <?php endif; ?>
                    <span class="read-more">
                        <?php echo esc_html($cta_link_title); ?>
                    </span>
                </div>
            </a>
        </div>
    </section>
<?php elseif (is_admin()): ?>
    <div style="padding:20px;border:1px dashed #ccc;">
        <strong>Featured Resource Block:</strong>
        No post found. Please select a post or ensure a blog post exists.
    </div>
<?php endif; ?>