<?php

namespace App\Http\Controllers\Gateway\BTCPay;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Gateway\PaymentController;
use App\Models\AdminNotification;
use App\Models\Deposit;
use App\Models\Gateway;
use BTCPayServer\Client\Invoice;
use BTCPayServer\Client\Webhook;
use BTCPayServer\Util\PreciseNumber;

class ProcessController extends Controller
{
	public static function process($deposit)
	{
		$btcPay = json_decode($deposit->gatewayCurrency()->gateway_parameter);

		$client = new Invoice($btcPay->server_name, $btcPay->api_key);

		try {
			$amount  = PreciseNumber::parseFloat($deposit->final_amo);
			$invoice = $client->createInvoice(
				$btcPay->store_id,
				gs('cur_text'),
				$amount,
				$deposit->trx
			);
			$deposit->btc_wallet = $invoice->getData()['id'];
			$deposit->detail = json_encode($invoice->getData());
			$deposit->save();

			$send['redirect']     = true;
			$send['redirect_url'] = $invoice['checkoutLink'];
		} catch (\Throwable $e) {
			$send['error']     = true;
			$send['message'] = $e->getMessage();;
		}

		return json_encode($send);
	}

	public function ipn()
	{
		$rawPostData = file_get_contents("php://input");
		if ($rawPostData) {
			$headers = getallheaders();
			foreach ($headers as $key => $value) {
				if (strtolower($key) === 'btcpay-sig') {
					$signature = $value;
				}
			}

			$gateway = Gateway::where('alias', 'BTCPay')->first();
			$gatewayParameters = json_decode($gateway->gateway_parameters);

			if (!isset($signature) || !$this->validWebhookRequest($signature, $rawPostData, $gatewayParameters->secret_code->value)) {
				$adminNotification            = new AdminNotification();
				$adminNotification->user_id   = 0;
				$adminNotification->title     = 'Webhook request validation failed.';
				$adminNotification->click_url = '#';
				$adminNotification->save();
				return false;
			}


			try {
				$postData = json_decode($rawPostData, false, 512, JSON_THROW_ON_ERROR);

				if (!isset($postData->invoiceId)) {
					$adminNotification            = new AdminNotification();
					$adminNotification->user_id   = 0;
					$adminNotification->title     = 'No BTCPay invoiceId provided, aborting.';
					$adminNotification->click_url = '#';
					$adminNotification->save();
					return false;
				}

				$deposit = Deposit::where('btc_wallet', $postData->invoiceId)->where('status', 0)->first();
				if ($deposit) {
					$this->processPayment($deposit, $postData);
				}
			} catch (\Throwable $e) {
				$adminNotification            = new AdminNotification();
				$adminNotification->user_id   = 0;
				$adminNotification->title     = 'Error decoding webhook payload: ' . $e->getMessage();
				$adminNotification->click_url = '#';
				$adminNotification->save();
				return false;
			}
		}
	}

	public function processPayment($deposit, $webhookData)
	{
		if ($webhookData->type == 'InvoicePaymentSettled') {
			if ($webhookData->afterExpiration) {
				$adminNotification            = new AdminNotification();
				$adminNotification->user_id   = 0;
				$adminNotification->title     = 'Payment expired for trx ' . $deposit->trx;
				$adminNotification->click_url = '#';
				$adminNotification->save();
				return false;
			} else {
				if ($webhookData->payment->status == 'Settled') {
					PaymentController::userDataUpdate($deposit);
					return true;
				} else {
					$adminNotification            = new AdminNotification();
					$adminNotification->user_id   = 0;
					$adminNotification->title     = 'Amount is not fully paid for trx ' . $deposit->trx;
					$adminNotification->click_url = '#';
					$adminNotification->save();
					return false;
				}
			}
		}
	}

	private function validWebhookRequest(string $signature, string $requestData, $secretCode): bool
	{
		return Webhook::isIncomingWebhookRequestValid($requestData, $signature, $secretCode);
	}
}
