'tiers' => array(
                    $tier(1, 1, 'Buy 1', 0, '', 'Single pack · Regular offer', 'yes'),
                    $tier(2, 2, 'Buy 2', 18, 'Popular', 'Most customers pick this bundle', 'yes'),
                    $tier(3, 3, 'Buy 3', 25, 'Best Value', 'Lowest price per item · Ends soon', 'yes'),
                    $tier(4, 4, 'Buy 4', 30, 'Best Deal', 'Largest bundle savings', 'no'),
                ),
            ),
        );
    }

    private static function yes_no($value) {
        return $value === 'yes' || $value === true || $value === '1' || $value === 1 ? 'yes' : 'no';
    }

    private static function decimal($value, $min = 0, $max = 999999) {
        $value = is_numeric($value) ? (float) $value : 0;
        $value = min((float) $max, max((float) $min, $value));
        return rtrim(rtrim(number_format($value, 2, '.', ''), '0'), '.');
    }

    public static function parse_ids($raw) {
        if (is_array($raw)) {
            $items = $raw;
        } else {
            $items = preg_split('/[\s,]+/', (string) $raw);
        }

        $ids = array();
        foreach ($items as $item) {
            $id = absint($item);
            if ($id > 0) {
                $ids[] = $id;
            }
        }

        return array_values(array_unique($ids));
    }

    public static function ids_to_string($ids) {
        $ids = self::parse_ids($ids);
        return implode(',', $ids);
    }

    public static function get_rules() {
        $rules = get_option(self::OPTION_NAME, null);
        if (!is_array($rules) || empty($rules)) {
            $rules = self::default_rules();
        }

        return self::normalize_rules($rules);
    }

    public static function normalize_rules($rules) {
        $normalized = array();
        $rules = is_array($rules) ? $rules : array();

        foreach ($rules as $index => $rule) {
            if (!is_array($rule)) {
                continue;
            }

            $scope = sanitize_key($rule['scope'] ?? 'all');
            if (!in_array($scope, array('all', 'products', 'categories'), true)) {
                $scope = 'all';
            }

            $discount_type = sanitize_key($rule['discount_type'] ?? 'percent');
            if (!in_array($discount_type, array('percent', 'fixed'), true)) {
                $discount_type = 'percent';
            }

            $priority = isset($rule['priority']) ? absint($rule['priority']) : self::default_priority_for_scope($scope);

            $tiers = array();
            if (!empty($rule['tiers']) && is_array($rule['tiers'])) {
                foreach ($rule['tiers'] as $i => $tier) {
                    if (!is_array($tier)) {
                        continue;
                    }
                    $amount_max = $discount_type === 'percent' ? 95 : 999999;
                    $qty = max(1, absint($tier['qty'] ?? ($i + 1)));
                    $amount = self::decimal($tier['amount'] ?? ($tier['discount'] ?? 0), 0, $amount_max);
                    $tiers[] = array(
                        'enabled' => self::yes_no($tier['enabled'] ?? 'yes'),
                        'qty' => $qty,
                        'label' => sanitize_text_field($tier['label'] ?? ('Buy ' . $qty)),
                        'badge' => sanitize_text_field($tier['badge'] ?? ''),
                        'amount' => $amount,
                        'discount' => $amount,
                        'subtitle' => sanitize_text_field($tier['subtitle'] ?? ''),
                    );
                }
            }

            usort($tiers, function ($a, $b) {
                return absint($a['qty']) <=> absint($b['qty']);
            });

            $normalized[] = array(
                'id' => sanitize_key($rule['id'] ?? ('rule_' . ($index + 1))),
                'title' => sanitize_text_field($rule['title'] ?? ('Discount Rule ' . ($index + 1))),
                'enabled' => self::yes_no($rule['enabled'] ?? 'no'),
                'scope' => $scope,
                'discount_type' => $discount_type,
                'priority' => $priority,
                'stop_further' => self::yes_no($rule['stop_further'] ?? 'yes'),
                'start_date' => sanitize_text_field($rule['start_date'] ?? ''),
                'end_date' => sanitize_text_field($rule['end_date'] ?? ''),
                'min_spend' => self::decimal($rule['min_spend'] ?? 0, 0, 999999),
                'max_spend' => self::decimal($rule['max_spend'] ?? 0, 0, 999999),
                'product_ids' => self::parse_ids($rule['product_ids'] ?? array()),
                'category_ids' => self::parse_ids($rule['category_ids'] ?? array()),
                'exclude_product_ids' => self::parse_ids($rule['exclude_product_ids'] ?? array()),
                'exclude_category_ids' => self::parse_ids($rule['exclude_category_ids'] ?? array()),
                'tiers' => $tiers,
            );
        }

        usort($normalized, function ($a, $b) {
            $priority = absint($b['priority']) <=> absint($a['priority']);
            if ($priority !== 0) {
                return $priority;
            }
            return self::scope_weight($b['scope']) <=> self::scope_weight($a['scope']);
        });

        return $normalized;
    }

    private static function default_priority_for_scope($scope) {
        if ($scope === 'products') {
            return 300;
        }
        if ($scope === 'categories') {
            return 200;
        }
        return 100;
    }

    private static function scope_weight($scope) {
        if ($scope === 'products') {
            return 3;
        }
        if ($scope === 'categories') {
            return 2;
        }
        return 1;
    }
int', $terms);
        $all = $ids;

        foreach ($ids as $term_id) {
            $ancestors = get_ancestors($term_id, 'product_cat');
            if (is_array($ancestors)) {
                $all = array_merge($all, array_map('absint', $ancestors));
            }
        }

        return array_values(array_unique(array_filter($all)));
    }

    private static function now_timestamp() {
        return function_exists('current_time') ? current_time('timestamp') : time();
    }

    private static function date_is_active($rule) {
        $now = self::now_timestamp();
        $start = trim((string) ($rule['start_date'] ?? ''));
        $end = trim((string) ($rule['end_date'] ?? ''));

        if ($start !== '') {
            $start_ts = strtotime($start);
            if ($start_ts && $now < $start_ts) {
                return false;
            }
        }

        if ($end !== '') {
            $end_ts = strtotime($end);
            if ($end_ts && $now > $end_ts) {
                return false;
            }
        }

        return true;
    }

    public static function cart_base_subtotal($cart = null) {
        if (!$cart && function_exists('WC') && WC()->cart) {
            $cart = WC()->cart;
        }

        if (!is_a($cart, 'WC_Cart')) {
            return null;
        }

        $subtotal = 0;
        foreach ($cart->get_cart() as $cart_item) {
            if (empty($cart_item['data']) || !is_a($cart_item['data'], 'WC_Product')) {
                continue;
            }

            $price_product_id = !empty($cart_item['variation_id']) ? absint($cart_item['variation_id']) : absint($cart_item['product_id'] ?? 0);
            $base_product = $price_product_id && function_exists('wc_get_product') ? wc_get_product($price_product_id) : null;
            $base_price = $base_product ? (float) $base_product->get_price('edit') : (float) $cart_item['data']->get_price('edit');
            $subtotal += $base_price * max(1, absint($cart_item['quantity'] ?? 1));
        }

        return $subtotal;
    }

    public static function rule_matches_product($rule, $product_id, $context = array()) {
        $product_id = self::get_product_parent_id($product_id);
        if (!$product_id || empty($rule) || !is_array($rule)) {
            return false;
        }

        if (($rule['enabled'] ?? 'no') !== 'yes') {
            return false;
        }

        if (!self::date_is_active($rule)) {
            return false;
        }

        $cart_subtotal = array_key_exists('cart_subtotal', $context) ? $context['cart_subtotal'] : null;
        if ($cart_subtotal !== null) {
            $cart_subtotal = (float) $cart_subtotal;
            $min = (float) ($rule['min_spend'] ?? 0);
            $max = (float) ($rule['max_spend'] ?? 0);
            if ($min > 0 && $cart_subtotal < $min) {
                return false;
            }
            if ($max > 0 && $cart_subtotal > $max) {
                return false;
            }
        }

        $category_ids = self::get_product_category_ids($product_id);
        $exclude_product_ids = self::parse_ids($rule['exclude_product_ids'] ?? array());
        $exclude_category_ids = self::parse_ids($rule['exclude_category_ids'] ?? array());

        if (in_array($product_id, $exclude_product_ids, true)) {
            return false;
        }

        if (!empty($exclude_category_ids) && array_intersect($category_ids, $exclude_category_ids)) {
            return false;
        }

        $scope = $rule['scope'] ?? 'all';
        if ($scope === 'all') {
            return true;
        }

        if ($scope === 'products') {
            $product_ids = self::parse_ids($rule['product_ids'] ?? array());
            return in_array($product_id, $product_ids, true);
        }

        if ($scope === 'categories') {
            $rule_category_ids = self::parse_ids($rule['category_ids'] ?? array());
            return !empty($rule_category_ids) && !empty(array_intersect($category_ids, $rule_category_ids));
        }

        return false;
    }

    public static function get_applicable_rule($product_id, $context = array()) {
        $rules = self::get_rules();

        foreach ($rules as $rule) {
            if (self::rule_matches_product($rule, $product_id, $context)) {
                return $rule;
            }
        }

        return null;
    }

    public static function get_applicable_qty_tier($product_id, $quantity, $context = array()) {
        $quantity = max(1, absint($quantity));
        $rule = self::get_applicable_rule($product_id, $context);
        if (!$rule || empty($rule['tiers']) || !is_array($rule['tiers'])) {
            return null;
        }

        $matched_tier = null;
        $matched_qty = 0;
        $type = $rule['discount_type'] ?? 'percent';

        foreach ($rule['tiers'] as $tier) {
            if (($tier['enabled'] ?? 'no') !== 'yes') {
                continue;
            }

            $tier_qty = max(1, absint($tier['qty'] ?? 1));
            $amount = (float) ($tier['amount'] ?? ($tier['discount'] ?? 0));
            if ($amount <= 0 || $tier_qty > $quantity || $tier_qty < $matched_qty) {
                continue;
            }

            $matched_qty = $tier_qty;
            $matched_tier = array(
                'rule_id' => $rule['id'] ?? '',
                'rule_title' => sanitize_text_field($rule['title'] ?? __('Discount Rule', 'wideoshop')),
                'discount_type' => $type,
                'qty' => $tier_qty,
                'label' => sanitize_text_field($tier['label'] ?? ('Buy ' . $tier_qty)),
                'badge' => sanitize_text_field($tier['badge'] ?? ''),
                'amount' => $type === 'percent' ? min(95, max(0, $amount)) : max(0, $amount),
                'discount' => $type === 'percent' ? min(95, max(0, $amount)) : max(0, $amount),
            );
        }

        return $matched_tier;
    }

    public static function calculate_discounted_price($base_price, $tier) {
        $base_price = (float) $base_price;
        if ($base_price <= 0 || empty($tier) || !is_array($tier)) {
            return $base_price;
        }

        $amount = (float) ($tier['amount'] ?? 0);
        if (($tier['discount_type'] ?? 'percent') === 'fixed') {
            return max(0, $base_price - $amount);
        }

        $amount = min(95, max(0, $amount));
        return $base_price * (1 - ($amount / 100));
    }

    public static function format_tier_discount($tier) {
        if (empty($tier) || !is_array($tier)) {
            return '';
        }

        $amount = (float) ($tier['amount'] ?? 0);
        if (($tier['discount_type'] ?? 'percent') === 'fixed') {
            return function_exists('wc_price') ? wp_strip_all_tags(wc_price($amount)) . ' OFF' : $amount . ' OFF';
        }

        return wc_format_decimal($amount, 0) . '% OFF';
    }

    public static function public_qty_bundle_config_for_product($product_id, $settings = null) {
        $settings = is_array($settings) ? $settings : get_option('wideoshop_settings', array());
        $rule = self::get_applicable_rule($product_id, array('cart_subtotal' => null));

        $title = isset($settings['wsv2_qty_title']) ? sanitize_text_field($settings['wsv2_qty_title']) : 'Qty Bundle — Save More';
        $default_qty = isset($settings['wsv2_qty_default']) ? max(1, absint($settings['wsv2_qty_default'])) : 1;
        $sheet_enabled = !isset($settings['wsv2_qty_enabled']) || $settings['wsv2_qty_enabled'] === 'yes';

        if (!$sheet_enabled || !$rule || empty($rule['tiers'])) {
            return array(
                'enabled' => false,
                'title' => $title,
                'defaultQty' => $default_qty,
                'tiers' => array(),
            );
        }

        $tiers = array();
        foreach ($rule['tiers'] as $tier) {
            if (($tier['enabled'] ?? 'no') !== 'yes') {
                continue;
            }
            $amount = (float) ($tier['amount'] ?? 0);
            $tiers[] = array(
                'qty' => max(1, absint($tier['qty'] ?? 1)),
                'label' => sanitize_text_field($tier['label'] ?? ('Buy ' . max(1, absint($tier['qty'] ?? 1)))),
                'badge' => sanitize_text_field($tier['badge'] ?? ''),
                'discount' => $amount,
                'discountType' => $rule['discount_type'] ?? 'percent',
                'discountText' => ($amount > 0) ? self::format_tier_discount(array('amount' => $amount, 'discount_type' => $rule['discount_type'] ?? 'percent')) : '',
                'subtitle' => sanitize_text_field($tier['subtitle'] ?? ''),
            );
        }

        return array(
            'enabled' => !empty($tiers),
            'title' => $title,
            'defaultQty' => $default_qty,
            'ruleId' => $rule['id'] ?? '',
            'ruleTitle' => $rule['title'] ?? '',
            'tiers' => $tiers,
        );
    }
}
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://vaseel.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://vaseel.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://vaseel.com/wp-sitemap-posts-product-1.xml</loc></sitemap><sitemap><loc>https://vaseel.com/wp-sitemap-taxonomies-cms_block_cat-1.xml</loc></sitemap><sitemap><loc>https://vaseel.com/wp-sitemap-taxonomies-product_cat-1.xml</loc></sitemap><sitemap><loc>https://vaseel.com/wp-sitemap-taxonomies-product_tag-1.xml</loc></sitemap><sitemap><loc>https://vaseel.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>