<?php
/**
 * Products Action - Get products with enriched data
 *
 * Optimized to fetch only required fields for telesales app
 */

require_once __DIR__ . '/../services/UpsellService.php';

/**
 * Handle get_products action
 *
 * @return void
 */
function handleGetProducts(): void
{
    try {
        $woocommerce = getWooCommerce();
        
        // Only fetch fields needed for telesales app
        $productFields = 'id,name,price,type,upsell_ids,cross_sell_ids';
        $variationFields = 'id,price,attributes';
        
        $products = $woocommerce->get('products', [
            'status' => 'publish',
            'per_page' => 100,
            '_fields' => $productFields
        ]);
        
        $cuw_map = UpsellService::buildProductMap();

        $enriched = [];

        foreach ($products as $product) {
            // Get variations for variable products (only needed fields)
            $variation_details = [];
            if ($product->type === 'variable') {
                $variation_details = (array) $woocommerce->get(
                    "products/{$product->id}/variations",
                    [
                        'per_page' => 50,
                        '_fields' => $variationFields
                    ]
                );
            }

            // Combine upsell + cross-sell + CUW IDs
            $upsell_ids = !empty($product->upsell_ids)
                ? array_map('intval', (array) $product->upsell_ids)
                : [];
            $cross_sell_ids = !empty($product->cross_sell_ids)
                ? array_map('intval', (array) $product->cross_sell_ids)
                : [];

            $cuw_ids = $cuw_map[(int)$product->id] ?? [];

            $recommended_ids = array_values(array_unique(array_filter(array_merge(
                $upsell_ids,
                $cross_sell_ids,
                $cuw_ids
            ))));

            // Build minimal product object with only needed fields
            $enriched[] = [
                'id' => (int) $product->id,
                'name' => $product->name,
                'price' => $product->price,
                'type' => $product->type,
                'upsell_ids' => $upsell_ids,
                'cross_sell_ids' => $cross_sell_ids,
                'variation_details' => $variation_details,
                'cuw_ids' => $cuw_ids,
                'recommended_ids' => $recommended_ids
            ];
        }

        echo json_encode($enriched);
    } catch (Exception $e) {
        echo json_encode([]);
    }
}