<?php

namespace App\Domains\Integration\Services;

use App\Domains\Purchase\Services\CheckoutService;
use App\Domains\Purchase\Models\TelepagosPayment;
use App\Domains\Purchase\Models\TelepagosQr;
use App\Domains\Tenant\Models\Tenant;
use Exception;
use Illuminate\Support\Facades\Log;

class TelepagosWebhookService
{
    public function __construct(
        private readonly CheckoutService $checkoutService,
    ) {}

    /**
     * Handle the Telepagos webhook notification.
     *
     * @param string $tenantCodigo
     * @param string $cashinId
     * @return void
     * @throws Exception
     */
    public function handleWebhook(string $tenantCodigo, string $cashinId): void
    {
        $tenant = Tenant::where('codigo', $tenantCodigo)->firstOrFail();
        
        $telepagosService = new TelepagosIntegrationService();
        $telepagosService->forTenant($tenant);

        try {
            $details = $telepagosService->getCashinDetails($cashinId);
            
            // Extract the qr_order_id from the response
            // The exact path depends on Telepagos response structure, assuming it's inside 'data'
            // Need to handle potential nested structures based on actual API
            $qrOrderId = $details['data']['qr_order_id'] ?? $details['qr_order_id'] ?? null;
            $amount = $details['data']['amount'] ?? $details['amount'] ?? 0;

            if (!$qrOrderId) {
                Log::warning("Telepagos webhook: qr_order_id not found for cashin {$cashinId}");
                return;
            }

            $telepagosQr = TelepagosQr::where('qr_order_id', $qrOrderId)->first();

            if (!$telepagosQr) {
                Log::warning("Telepagos webhook: QR {$qrOrderId} not found in database for cashin {$cashinId}");
                return;
            }

            $compra = $telepagosQr->compra;

            if (!$compra) {
                Log::warning("Telepagos webhook: Purchase not found for QR {$qrOrderId}");
                return;
            }

            $totalAmount = $compra->getTotalAmount();

            // Depending on precision, we might need a looser comparison, but == should work for floats here
            if ($amount != $totalAmount) {
                Log::warning("Telepagos webhook: Amount mismatch. Cashin amount: {$amount}, Purchase amount: {$totalAmount}");
                // In a real scenario, you might want to record a partial payment or flag it, 
                // but the instructions say to finalize ONLY if the amount is correct.
                return;
            }

            // Create the TelepagosPayment and finalize the purchase in a transaction
            $paymentData = [
                'compra_id' => $compra->id,
                'cuit_buyer' => $details['data']['cuit_buyer'] ?? $details['cuit_buyer'] ?? null,
                'cvu_buyer' => $details['data']['cvu_buyer'] ?? $details['cvu_buyer'] ?? null,
                'amount' => $amount,
                'concept' => $details['data']['concept'] ?? $details['concept'] ?? null,
                'operation' => $details['data']['operation'] ?? $details['operation'] ?? null,
                'operation_id' => $details['data']['operation_id'] ?? $details['operation_id'] ?? null,
                'transaction_id' => $details['data']['transaction_id'] ?? $details['transaction_id'] ?? null,
                'qr_order_id' => $qrOrderId,
                'link_id' => $details['data']['link_id'] ?? $details['link_id'] ?? null,
            ];

            \Illuminate\Support\Facades\DB::transaction(function () use ($compra, $paymentData) {
                TelepagosPayment::create($paymentData);
                $this->checkoutService->confirmPurchase($compra);
                $compra->finalize();
            });

            Log::info("Telepagos webhook: Successfully processed cashin {$cashinId} for purchase {$compra->id}");

        } catch (Exception $e) {
            Log::error("Telepagos webhook error: " . $e->getMessage());
            throw $e;
        }
    }
}