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Editing:helpers.php

<?php
function unfia_get_option($key, $default = '') {
    $options = get_option('unfia_options', []);
    return isset($options[$key]) ? $options[$key] : $default;
}

function unfia_get_logo_id() {
    static $cached_id = null;
    if ($cached_id !== null) return $cached_id;
    $logo_id = unfia_get_option('logo');
    if (!$logo_id) {
        $logo_id = get_theme_mod('custom_logo', 0);
    }
    if (!$logo_id) {
        $logos = get_posts([
            'post_type' => 'attachment',
            'post_mime_type' => 'image',
            'posts_per_page' => 1,
            'orderby' => 'date',
            'order' => 'ASC',
        ]);
        if (!empty($logos)) {
            $logo_id = $logos[0]->ID;
        }
    }
    $cached_id = $logo_id ? intval($logo_id) : 0;
    return $cached_id;
}

function unfia_logo($size = 'full', $class = 'unfia-logo-img') {
    $logo_id = unfia_get_logo_id();
    if ($logo_id) {
        echo wp_get_attachment_image($logo_id, $size, '', ['class' => $class, 'alt' => get_bloginfo('name')]);
    } else {
        echo '<span class="unfia-logo-text">' . get_bloginfo('name') . '</span>';
    }
}

function unfia_get_image($size = 'full', $class = 'img-fluid', $attachment_id = 0) {
    if ($attachment_id) {
        return wp_get_attachment_image($attachment_id, $size, false, ['class' => $class, 'alt' => get_bloginfo('name')]);
    }
    $images = get_posts([
        'post_type' => 'attachment',
        'post_mime_type' => 'image',
        'posts_per_page' => 1,
        'orderby' => 'date',
        'order' => 'ASC',
    ]);
    if (!empty($images)) {
        return wp_get_attachment_image($images[0]->ID, $size, false, ['class' => $class, 'alt' => get_bloginfo('name')]);
    }
    return '<img src="' . UNFIA_URI . '/assets/images/placeholder-about.jpg" alt="" class="' . $class . '">';
}

function unfia_get_attachment_url_by_filename($filename) {
    $attachments = get_posts([
        'post_type' => 'attachment',
        'posts_per_page' => 1,
        'meta_query' => [['key' => '_wp_attached_file', 'value' => $filename, 'compare' => 'LIKE']],
    ]);
    if (!empty($attachments)) {
        return wp_get_attachment_url($attachments[0]->ID);
    }
    return UNFIA_URI . '/assets/images/placeholder-about.jpg';
}

function unfia_get_image_html($filename, $size = 'full', $class = 'img-fluid', $alt = '') {
    $url = unfia_get_attachment_url_by_filename($filename);
    return '<img src="' . esc_url($url) . '" alt="' . esc_attr($alt) . '" class="' . esc_attr($class) . '">';
}

function unfia_social_icons() {
    $socials = ['facebook', 'twitter', 'instagram', 'linkedin', 'youtube', 'tiktok'];
    foreach ($socials as $s) {
        $url = unfia_get_option($s . '_url');
        if ($url) {
            $icon = 'facebook' === $s ? 'facebook-f' : $s;
            echo '<a href="' . esc_url($url) . '" target="_blank" rel="noopener" class="social-icon social-' . esc_attr($s) . '" aria-label="' . esc_attr(ucfirst($s)) . '"><i class="fab fa-' . esc_attr($icon) . '"></i></a>';
        }
    }
}

function unfia_whatsapp_link($type = 'usa') {
    $usa = unfia_get_option('whatsapp_usa', '+13073939042');
    $sri = unfia_get_option('whatsapp_sri', '94772305309');
    $num = 'usa' === $type ? $usa : $sri;
    $clean = preg_replace('/[^0-9]/', '', $num);
    return 'https://wa.me/' . $clean;
}

function unfia_phone_numbers() {
    $usa = unfia_get_option('whatsapp_usa', '+1 (307) 393-9042');
    $sri = unfia_get_option('whatsapp_sri', '+94 772305309');
    return [$usa, $sri];
}

function unfia_email() {
    return unfia_get_option('contact_email', 'ranjithopatha@gmail.com');
}

function unfia_breadcrumbs() {
    if (is_front_page()) return;
    echo '<nav class="unfia-breadcrumbs" aria-label="Breadcrumb"><div class="container"><ol class="breadcrumb">';
    echo '<li class="breadcrumb-item"><a href="' . home_url() . '">' . __('Home', 'unfia') . '</a></li>';
    if (is_category() || is_single()) {
        $cats = get_the_category();
        if (!empty($cats)) {
            echo '<li class="breadcrumb-item"><a href="' . get_category_link($cats[0]->term_id) . '">' . $cats[0]->name . '</a></li>';
        }
        if (is_single()) {
            echo '<li class="breadcrumb-item active">' . get_the_title() . '</li>';
        }
    } elseif (is_page()) {
        echo '<li class="breadcrumb-item active">' . get_the_title() . '</li>';
    } elseif (is_search()) {
        echo '<li class="breadcrumb-item active">' . __('Search Results', 'unfia') . '</li>';
    } elseif (is_404()) {
        echo '<li class="breadcrumb-item active">' . __('404 Not Found', 'unfia') . '</li>';
    } elseif (is_archive()) {
        echo '<li class="breadcrumb-item active">' . get_the_archive_title() . '</li>';
    }
    echo '</ol></div></nav>';
}

function unfia_pagination() {
    global $wp_query;
    $big = 999999999;
    $pages = paginate_links([
        'base'      => str_replace($big, '%#%', esc_url(get_pagenum_link($big))),
        'format'    => '?paged=%#%',
        'current'   => max(1, get_query_var('paged')),
        'total'     => $wp_query->max_num_pages,
        'type'      => 'array',
        'prev_text' => '<i class="fas fa-chevron-left"></i>',
        'next_text' => '<i class="fas fa-chevron-right"></i>',
    ]);
    if (is_array($pages)) {
        echo '<nav aria-label="Page navigation"><ul class="pagination justify-content-center">';
        foreach ($pages as $page) {
            $active = strpos($page, 'current') !== false ? ' active' : '';
            echo '<li class="page-item' . $active . '">' . str_replace('page-numbers', 'page-link', $page) . '</li>';
        }
        echo '</ul></nav>';
    }
}

function unfia_excerpt($limit = 30) {
    $excerpt = explode(' ', get_the_excerpt(), $limit);
    if (count($excerpt) >= $limit) {
        array_pop($excerpt);
        $excerpt = implode(' ', $excerpt) . '...';
    } else {
        $excerpt = implode(' ', $excerpt);
    }
    $excerpt = preg_replace('`[[^]]*]`', '', $excerpt);
    return $excerpt;
}

function unfia_section_title($title, $subtitle = '', $class = '') {
    ?>
    <div class="section-title text-center <?php echo esc_attr($class); ?>">
        <?php if ($subtitle): ?>
            <span class="section-subtitle"><?php echo esc_html($subtitle); ?></span>
        <?php endif; ?>
        <h2 class="section-heading"><?php echo esc_html($title); ?></h2>
        <div class="title-divider">
            <span class="divider-line"></span>
            <span class="divider-icon"><i class="fas fa-star"></i></span>
            <span class="divider-line"></span>
        </div>
    </div>
    <?php
}

add_filter('nav_menu_link_attributes', 'unfia_menu_link_attributes', 10, 3);
function unfia_menu_link_attributes($atts, $item, $args) {
    if (in_array('current-menu-item', $item->classes)) {
        $atts['class'] = isset($atts['class']) ? $atts['class'] . ' active' : 'active';
    }
    return $atts;
}

function unfia_get_svg_divider($position = 'bottom', $color = '#ffffff', $flip = false) {
    $flip_class = $flip ? ' flip' : '';
    return '<div class="svg-divider svg-divider-' . $position . $flip_class . '">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 100" preserveAspectRatio="none">
            <path fill="' . esc_attr($color) . '" d="M0,0 C360,100 1080,100 1440,0 L1440,100 L0,100 Z"></path>
        </svg>
    </div>';
}