<?php
// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

use Sodino\Services\PricingService;
use Sodino\Services\TrackingService;
use Sodino\Repositories\RuleRepository;
use Sodino\Repositories\EventRepository;

// Initialize pricing service
global $sodino_pricing_service;
$ruleRepository = new RuleRepository();
$eventRepository = new EventRepository();
$trackingService = new TrackingService($eventRepository);
$sodino_pricing_service = new PricingService($ruleRepository, $trackingService);

// Hook into WooCommerce price filter
add_filter('woocommerce_product_get_price', 'sodino_apply_dynamic_pricing', 10, 2);
add_filter('woocommerce_product_get_sale_price', 'sodino_apply_dynamic_pricing', 10, 2);
add_filter('woocommerce_product_variation_get_price', 'sodino_apply_dynamic_pricing', 10, 2);
add_filter('woocommerce_product_variation_get_sale_price', 'sodino_apply_dynamic_pricing', 10, 2);
add_filter('woocommerce_package_rates', 'sodino_apply_free_shipping_rules', 20, 1);
add_filter('woocommerce_add_cart_item_data', 'sodino_add_dynamic_pricing_cart_item_data', 20, 4);
add_filter('woocommerce_get_cart_item_from_session', 'sodino_restore_dynamic_pricing_cart_item_data', 20, 2);
add_filter('woocommerce_get_item_data', 'sodino_display_dynamic_pricing_cart_item_data', 20, 2);
add_action('woocommerce_checkout_create_order_line_item', 'sodino_add_dynamic_pricing_order_item_meta', 20, 4);
add_action('woocommerce_add_to_cart', 'sodino_track_dynamic_pricing_conversion', 30, 6);

function sodino_apply_dynamic_pricing($price, $product) {
    global $sodino_pricing_service;
    return $sodino_pricing_service->applyDynamicPricing($price, $product);
}

function sodino_apply_free_shipping_rules($rates) {
    global $sodino_pricing_service;
    return $sodino_pricing_service->applyFreeShippingRates($rates);
}

function sodino_add_dynamic_pricing_cart_item_data($cart_item_data, $product_id, $variation_id, $quantity) {
    global $sodino_pricing_service;

    if (!$sodino_pricing_service) {
        return $cart_item_data;
    }

    $product = wc_get_product($variation_id ?: $product_id);
    if (!$product) {
        return $cart_item_data;
    }

    $basePrice = $product->get_price('edit');
    if ($basePrice === '' || !is_numeric($basePrice)) {
        return $cart_item_data;
    }

    $discountedPrice = $sodino_pricing_service->applyDynamicPricing($basePrice, $product);
    $rules = $sodino_pricing_service->getAppliedRulesForProduct($product);
    if (empty($rules) || $discountedPrice >= (float) $basePrice) {
        return $cart_item_data;
    }

    $cart_item_data['sodino_dynamic_pricing'] = [
        'rule_ids' => array_values(array_unique(array_map('intval', array_column($rules, 'rule_id')))),
        'original_price' => (float) $basePrice,
        'discounted_price' => (float) $discountedPrice,
        'discount_value' => max(0, (float) $basePrice - (float) $discountedPrice),
    ];

    return $cart_item_data;
}

function sodino_restore_dynamic_pricing_cart_item_data($cart_item, $values) {
    if (!empty($values['sodino_dynamic_pricing'])) {
        $cart_item['sodino_dynamic_pricing'] = $values['sodino_dynamic_pricing'];
    }

    return $cart_item;
}

function sodino_display_dynamic_pricing_cart_item_data($item_data, $cart_item) {
    if (empty($cart_item['sodino_dynamic_pricing']['discount_value'])) {
        return $item_data;
    }

    $item_data[] = [
        'key' => __('تخفیف سودینو', 'sodino'),
        'value' => wp_kses_post(wc_price((float) $cart_item['sodino_dynamic_pricing']['discount_value'])),
    ];

    return $item_data;
}

function sodino_add_dynamic_pricing_order_item_meta($item, $cart_item_key, $values, $order) {
    if (empty($values['sodino_dynamic_pricing'])) {
        return;
    }

    $pricing = $values['sodino_dynamic_pricing'];
    $ruleIds = !empty($pricing['rule_ids']) ? array_map('intval', (array) $pricing['rule_ids']) : [];

    if (empty($ruleIds)) {
        return;
    }

    $item->add_meta_data('_sodino_rule_ids', implode(',', $ruleIds), true);
    $item->add_meta_data('_sodino_rule_discount', (float) ($pricing['discount_value'] ?? 0), true);
    $item->add_meta_data(__('تخفیف قوانین سودینو', 'sodino'), wc_price((float) ($pricing['discount_value'] ?? 0)), true);
}

function sodino_track_dynamic_pricing_conversion($cart_item_key, $product_id, $quantity, $variation_id, $variation, $cart_item_data) {
    global $sodino_pricing_service;

    if (!$sodino_pricing_service) {
        return;
    }

    $product = wc_get_product($variation_id ?: $product_id);
    if (!$product) {
        return;
    }

    $basePrice = $product->get_price('edit');
    if ($basePrice === '' || !is_numeric($basePrice)) {
        return;
    }

    $sodino_pricing_service->applyDynamicPricing($basePrice, $product);
    $sodino_pricing_service->trackAppliedRulesForProduct($product);
}