vendor-birthday

add_filter('wcfm_profile_fields_general', function($fields, $user_id) {
    $birth_month = get_user_meta($user_id, 'user_birth_month', true);
    $birth_date = get_user_meta($user_id, 'user_birth_date', true);
    $month_options = ['Select month', 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
    $days = ['Select date', 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31];
    $birthday = array(
        "birth_month" => array('label' => __('Birthday', 'wc-frontend-manager') , 'type' => 'select', 'options' => $month_options, 'class' => 'wcfm-select wcfm_ele birth_field', 'label_class' => 'wcfm_title wcfm_ele', 'value' => $birth_month ),
        "birth_date" => array('type' => 'select', 'options' => $days, 'class' => 'wcfm-select wcfm_ele birth_field', 'label_class' => 'wcfm_title wcfm_ele', 'value' => $birth_date ),
    );
    if(!$birth_date) {
        $birthday['birth_date']['attributes'] = array( 'disabled' => 'disabled' );
    }
    return array_merge($fields, $birthday);
}, 10, 2);

add_action('end_wcfm_user_profile', function() {
    ?>
    <style>
        #wcfm_profile_personal_expander select.birth_field {
            width: 29%;
        }
        #wcfm_profile_personal_expander select.birth_field:first-of-type {
            margin-right: 2%;
        }
    </style>
    <script>
        jQuery(function($) {
            $('#wcfm_profile_personal_expander select#birth_month').change(function() {
                var monthSelection = $(this).val();
                var $dateDropdown = $('#wcfm_profile_personal_expander select#birth_date');
                if(monthSelection > 0) {
                    var month_total_days = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
                    var monthDays = month_total_days[monthSelection-1];
                    $dateDropdown.find('option').css('display', '');
                    for(i = monthDays+1; i<=31; i++) {
                        $dateDropdown.find('option').eq(i).css('display', 'none');
                    }
                    $dateDropdown.prop('disabled', false);
                } else {
                    $dateDropdown[0].selectedIndex = 0;
                    $dateDropdown.prop('disabled', true);
                }
            });
        });
    </script>
    <?php
});

add_action('wcfm_profile_update', function($user_id, $wcfm_profile_form) {
    if(!empty($wcfm_profile_form['birth_month']) && !empty($wcfm_profile_form['birth_date'])) {
        update_user_meta($user_id, 'user_birth_month', $wcfm_profile_form['birth_month']);
        update_user_meta($user_id, 'user_birth_date', $wcfm_profile_form['birth_date']);
    } else {
        delete_user_meta($user_id, 'user_birth_month');
        delete_user_meta($user_id, 'user_birth_date');
    }
}, 10, 2);

add_shortcode('vendor_birthday', function($attr) {
    global $post;
    $store_id = '';
    if ( isset( $attr['id'] ) && ! empty( $attr['id'] ) ) {
        $store_id = absint( $attr['id'] );
    }
    if ( wcfm_is_store_page() ) {
        $wcfm_store_url = get_option( 'wcfm_store_url', 'store' );
        $store_name = apply_filters( 'wcfmmp_store_query_var', get_query_var( $wcfm_store_url ) );
        $store_id = 0;
        if ( ! empty( $store_name ) ) {
            $store_user = get_user_by( 'slug', $store_name );
            $store_id = $store_user->ID;
        }
    }
    if ( is_product() ) {
        $store_id = $post->post_author;
    }
    if( !$store_id ) return;
    $month_options = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
    $birth_month = get_user_meta($store_id, 'user_birth_month', true);
    $birth_date = get_user_meta($store_id, 'user_birth_date', true);
    $birth_date_str = $birth_date;
    if($birth_date % 10 == 0 || $birth_date % 10 > 3 || in_array($birth_date, [11, 12, 13])) $birth_date_str .= 'th ';
    elseif($birth_date % 10 == 1 ) $birth_date_str .= 'st ';
    elseif($birth_date % 10 == 2 ) $birth_date_str .= 'nd ';
    elseif($birth_date % 10 == 3 ) $birth_date_str .= 'rd ';

    $birth_date_str .= $month_options[$birth_month - 1];
    return "<p>{$birth_date_str}</p>";
});