<?php

namespace App\Traits\PaymentGateway;

use App\Constants\PaymentGatewayConst;
use App\Models\TemporaryData;
use Exception;
use Srmklive\PayPal\Services\PayPal as PayPalClient;
use Illuminate\Support\Str;

trait Paypal
{
    public function paypalInit($output = null) {
        if(!$output) $output = $this->output;
        $credentials = $this->getPaypalCredentials($output);
        $config = $this->paypalConfig($credentials,$output['amount']);
        $paypalProvider = new PayPalClient;
        $paypalProvider->setApiCredentials($config);
        $paypalProvider->getAccessToken();
        $redirection = $this->getRedirection();
        $url_parameter = $this->getUrlParams();

        

        $response = $paypalProvider->createOrder([
            "intent" => "CAPTURE",
            "application_context" => [
                "return_url" => $this->setGatewayRoute($redirection['return_url'],PaymentGatewayConst::PAYPAL,$url_parameter),
                "cancel_url" => $this->setGatewayRoute($redirection['cancel_url'],PaymentGatewayConst::PAYPAL,$url_parameter),
            ],
            "purchase_units" => [
                0 => [
                    "amount" => [
                        "currency_code" => $output['amount']->sender_cur_code ?? '',
                        "value" => $output['amount']->total_amount ? number_format($output['amount']->total_amount,2,'.','') : 0,
                    ]
                ]
            ]
        ]);

        if(isset($response['id']) && $response['id'] != "" && isset($response['status']) && $response['status'] == "CREATED" && isset($response['links']) && is_array($response['links'])) {
            foreach($response['links'] as $item) {
                if($item['rel'] == "approve") {
                    $this->paypalJunkInsert($response);
                    if(request()->expectsJson()) {
                        $this->output['redirection_response']   = $response;
                        $this->output['redirect_links']         = $response['links'];
                        $this->output['redirect_url']           = $item['href'];
                        return $this->get();
                        break;
                    }
                    return redirect()->away($item['href']);
                    break;
                }
            }
        }

        if(isset($response['error']) && is_array($response['error'])) {
            throw new Exception($response['error']['message']);
        }

        throw new Exception("Something went wrong! Please try again.");
    }

    public function getPaypalCredentials($output) {
        $gateway = $output['gateway'] ?? null;
        if(!$gateway) throw new Exception("Payment gateway not available");
        $client_id_sample = ['api key','api_key','client id','primary key'];
        $client_secret_sample = ['client_secret','client secret','secret','secret key','secret id'];

        $client_id = '';
        $outer_break = false;
        foreach($client_id_sample as $item) {
            if($outer_break == true) {
                break;
            }
            $modify_item = $this->paypalPlainText($item);
            foreach($gateway->credentials ?? [] as $gatewayInput) {
                $label = $gatewayInput->label ?? "";
                $label = $this->paypalPlainText($label);

                if($label == $modify_item) {
                    $client_id = $gatewayInput->value ?? "";
                    $outer_break = true;
                    break;
                }
            }
        }

        $secret_id = '';
        $outer_break = false;
        foreach($client_secret_sample as $item) {
            if($outer_break == true) {
                break;
            }
            $modify_item = $this->paypalPlainText($item);
            foreach($gateway->credentials ?? [] as $gatewayInput) {
                $label = $gatewayInput->label ?? "";
                $label = $this->paypalPlainText($label);

                if($label == $modify_item) {
                    $secret_id = $gatewayInput->value ?? "";
                    $outer_break = true;
                    break;
                }
            }
        }

        $mode = $gateway->env;
        
        $paypal_register_mode = [
            PaymentGatewayConst::ENV_SANDBOX => "sandbox",
            PaymentGatewayConst::ENV_PRODUCTION => "live",
        ];

        if(array_key_exists($mode,$paypal_register_mode)) {
            $mode = $paypal_register_mode[$mode];
        }else {
            $mode = "sandbox";
        }

        return (object) [
            'client_id'     => $client_id,
            'client_secret' => $secret_id,
            'mode'          => $mode,
        ];

    }

    public function paypalPlainText($string) {
        $string = Str::lower($string);
        return preg_replace("/[^A-Za-z0-9]/","",$string);
    }

    public static function paypalConfig($credentials, $amount_info)
    {
        $config = [
            'mode'    => $credentials->mode ?? 'sandbox',
            'sandbox' => [
                'client_id'         => $credentials->client_id ?? "",
                'client_secret'     => $credentials->client_secret ?? "",
                'app_id'            => "APP-80W284485P519543T",
            ],
            'live' => [
                'client_id'         => $credentials->client_id ?? "",
                'client_secret'     => $credentials->client_secret ?? "",
                'app_id'            => "",
            ],
            'payment_action' => 'Sale', // Can only be 'Sale', 'Authorization' or 'Order'
            'currency'       => $amount_info->sender_cur_code ?? "",
            'notify_url'     => "", // Change this accordingly for your application.
            'locale'         => 'en_US', // force gateway language  i.e. it_IT, es_ES, en_US ... (for express checkout only)
            'validate_ssl'   => true, // Validate SSL when creating api client.
        ];
        return $config;
    }

    public function paypalJunkInsert($response) {

        $output = $this->output;
        $data = [
            'gateway'       => $output['gateway']->id,
            'currency'      => $output['currency']->id,
            'amount'        => json_decode(json_encode($output['amount']),true),
            'response'      => $response,
            'wallet_table'  => $output['wallet']->getTable(),
            'wallet_id'     => $output['wallet']->id,
            'creator_table' => auth()->guard(get_auth_guard())->user()->getTable(),
            'creator_id'    => auth()->guard(get_auth_guard())->user()->id,
            'creator_guard' => get_auth_guard(),
        ];

        return TemporaryData::create([
            'type'          => PaymentGatewayConst::TYPEADDMONEY,
            'identifier'    => $response['id'],
            'data'          => $data,
        ]);
    }

    public function paypalSuccess($output = null) { 
        if(!$output) $output = $this->output;
        $token = $this->output['tempData']['identifier'] ?? "";

        $credentials = $this->getPaypalCredentials($output);
        $config = $this->paypalConfig($credentials,$output['amount']);
        $paypalProvider = new PayPalClient;
        $paypalProvider->setApiCredentials($config);
        $paypalProvider->getAccessToken();
        $response = $paypalProvider->capturePaymentOrder($token);

        if(isset($response['status']) && $response['status'] == 'COMPLETED') {
            return $this->paypalPaymentCaptured($response,$output);
        }else {
            throw new Exception('Transaction failed. Payment captured failed.');
        }

        if(empty($token)) throw new Exception('Transaction failed. Record didn\'t saved properly. Please try again.');
    }

    public function paypalPaymentCaptured($response,$output) {
        // payment successfully captured record saved to database
        $output['capture'] = $response;
        try{
            $this->createTransaction($output);
        }catch(Exception $e) {
            throw new Exception($e->getMessage());
        }

        return true;
    }

    public static function isPaypal($gateway) {
        $search_keyword = ['paypal','paypal gateway','paypal payment gateway','gateway paypal','paypal automatic gateway','paypal automatic'];
        $gateway_name = $gateway->name;

        $search_text = Str::lower($gateway_name);
        $search_text = preg_replace("/[^A-Za-z0-9]/","",$search_text);
        foreach($search_keyword as $keyword) {
            $keyword = Str::lower($keyword);
            $keyword = preg_replace("/[^A-Za-z0-9]/","",$keyword);
            if($keyword == $search_text) {
                return true;
                break;
            }
        }
        return false;
    }
}

• [F] Flutterwave.php
  Delete
• [F] Paypal.php
  Delete
• [F] PaystackGateway.php
  Delete
• [F] Razorpay.php
  Delete
• [F] SslCommerz.php
  Delete
• [F] Stripe.php
  Delete

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

Yes, we use advanced encryption and security protocols to protect your payment details.

Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

Yes, you can view and track your payment status in the account dashboard