<?php
/**
 * TELVERO BACKOFFICE - API PROXY (FINAL VERSION WITH ATTRIBUTION FIX)
 */
ini_set('display_errors', 0);
error_reporting(E_ALL);

require __DIR__ . '/vendor/autoload.php';

use Automattic\WooCommerce\Client;
use Mollie\Api\MollieApiClient;

header('Content-Type: application/json');

// --- CONFIGURATIE ---
$postcode_tech_key = '7d9136fb-3633-446d-b5d2-fe26a999bd62';
$mollie_api_key    = 'test_sfUxawrmbxWSTdqhmg5vm3hc7yvmNP'; 
$site_url          = 'https://telvero.nl';

$woocommerce = new Client(
    $site_url, 
    'ck_f20c3d254df090816aa552dd312998cffac41866', 
    'cs_6d2df33dc9e003a3804d20f8079dead853b8e689', 
    ['version' => 'wc/v3', 'timeout' => 400, 'verify_ssl' => false]
);

$action = $_GET['action'] ?? '';

// 1. POSTCODE CHECK
if ($action === 'postcode_check') {
    $postcode = str_replace(' ', '', $_GET['postcode']);
    $url = "https://postcode.tech/api/v1/postcode?postcode={$postcode}&number=" . $_GET['number'];
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ["Authorization: Bearer {$postcode_tech_key}"]);
    echo curl_exec($ch); curl_close($ch); exit;
}

// 2. PRODUCTEN OPHALEN (Inclusief Variatie Details)
if ($action === 'get_products') {
    try {
        $products = $woocommerce->get('products', ['status' => 'publish', 'per_page' => 100]);
        $enriched = [];
        foreach ($products as $product) {
            $p = (array)$product;
            if ($product->type === 'variable') {
                $p['variation_details'] = $woocommerce->get("products/{$product->id}/variations", ['per_page' => 100]);
            } else { $p['variation_details'] = []; }
            $enriched[] = $p;
        }
        echo json_encode($enriched);
    } catch (Exception $e) { echo json_encode(['error' => $e->getMessage()]); }
    exit;
}

// 3. ORDER AANMAKEN
if ($action === 'create_order') {
    $input = json_decode(file_get_contents('php://input'), true);

    try {
        $method_input = $input['payment_method'];
        $mediacode = $input['mediacode_internal'] ?? 'Geen';
        
        // Map methoden naar officiële Mollie plugin IDs
        if ($method_input === 'mollie_methods_ideal') {
            $wc_gateway_id = 'mollie_wc_gateway_ideal';
            $mollie_id = 'ideal';
        } elseif ($method_input === 'rve_riverty') {
            $wc_gateway_id = 'mollie_wc_gateway_riverty';
            $mollie_id = 'riverty';
        } elseif ($method_input === 'mollie_methods_creditcard') {
            $wc_gateway_id = 'mollie_wc_gateway_creditcard';
            $mollie_id = 'creditcard';
        }

        // --- ATTRIBUTION DATA & ORDER INITIALISATIE ---
        $input['payment_method'] = $wc_gateway_id;
        $input['payment_method_title'] = 'iDEAL (via Mollie)';
        $input['customer_note'] = "Bron: Sales Panel | Mediacode: " . $mediacode;

        // Metadata toevoegen bij creatie (Direct zichtbaar in Custom Fields)
        $input['meta_data'][] = ['key' => 'Mediacode', 'value' => $mediacode];
        $input['meta_data'][] = ['key' => 'Origin', 'value' => 'Sales Panel'];
        $input['meta_data'][] = ['key' => '_wc_order_attribution_utm_campaign', 'value' => $mediacode];
        $input['meta_data'][] = ['key' => '_wc_order_attribution_utm_source', 'value' => 'SalesPanel'];

        // A. WooCommerce Order aanmaken
        $order = $woocommerce->post('orders', $input);
        if (!$order || !isset($order->id)) throw new Exception("WooCommerce order mislukt.");

        // B. Mollie Setup
        $mollie = new MollieApiClient();
        $mollie->setApiKey($mollie_api_key);
        $is_sub = (stripos(json_encode($order->line_items), 'abonnement') !== false);
        $payment_value = number_format((float)$order->total, 2, '.', '');
        if ($mollie_id === 'ideal' && $is_sub) $payment_value = "0.01";

        // C. Webhook & Redirect URLs
        $webhookUrl  = "{$site_url}/wc-api/mollie_wc_gateway_ideal?order_id={$order->id}&key={$order->order_key}&filter_flag=1";
        $redirectUrl = "{$site_url}/checkout/order-received/{$order->id}/?key={$order->order_key}&order_id={$order->id}&filter_flag=onMollieReturn&utm_campaign={$mediacode}";

        $paymentData = [
            "amount" => ["currency" => "EUR", "value" => $payment_value],
            "description" => "Order #" . $order->id . " [" . $mediacode . "]",
            "redirectUrl" => $redirectUrl,
            "webhookUrl"  => $webhookUrl,
            "method"      => $mollie_id,
            "metadata"    => ["order_id" => (string)$order->id, "mediacode" => $mediacode]
        ];

        $payment = $mollie->payments->create($paymentData);

        // D. MATCHING & PERMANENTE MEDIACODE (Update met Mollie ID)
        $woocommerce->put("orders/" . $order->id, [
            'meta_data' => [
                ['key' => '_mollie_payment_id', 'value' => $payment->id],
                ['key' => '_transaction_id', 'value' => $payment->id],
                ['key' => '_payment_method', 'value' => $wc_gateway_id],
                ['key' => 'Mediacode', 'value' => $mediacode],
                ['key' => '_mediacode', 'value' => $mediacode]
            ]
        ]);

        // E. Email trigger (Customer Note)
        $woocommerce->post("orders/{$order->id}/notes", [
            'note' => "Betaallink voor uw bestelling: " . $payment->getCheckoutUrl(),
            'customer_note' => true
        ]);

        echo json_encode(['id' => $order->id, 'payment_url' => $payment->getCheckoutUrl()]);

    } catch (Exception $e) {
        http_response_code(422);
        echo json_encode(['error' => $e->getMessage()]);
    }
    exit;
}