<?php

/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\PaymentDrivers\Stripe;

use App\Exceptions\PaymentFailed;
use App\Http\Requests\Request;
use App\Jobs\Mail\NinjaMailerJob;
use App\Jobs\Mail\NinjaMailerObject;
use App\Jobs\Util\SystemLogger;
use App\Mail\Gateways\ACHVerificationNotification;
use App\Models\ClientGatewayToken;
use App\Models\GatewayType;
use App\Models\Payment;
use App\Models\PaymentHash;
use App\Models\PaymentType;
use App\Models\SystemLog;
use App\PaymentDrivers\StripePaymentDriver;
use App\Utils\Traits\MakesHash;
use Exception;
use Stripe\Customer;
use Stripe\Exception\ApiErrorException;
use Stripe\Exception\AuthenticationException;
use Stripe\Exception\CardException;
use Stripe\Exception\InvalidRequestException;
use Stripe\Exception\RateLimitException;
use Stripe\PaymentIntent;

class ACH
{
    use MakesHash;

    /** @var StripePaymentDriver */
    public $stripe;

    public function __construct(StripePaymentDriver $stripe)
    {
        $this->stripe = $stripe;
    }

    /**
     * Authorize a bank account - requires microdeposit verification
     */
    public function authorizeView(array $data)
    {
        $data['gateway'] = $this->stripe;

        return render('gateways.stripe.ach.authorize', array_merge($data));
    }

    public function authorizeResponse(Request $request)
    {
        $this->stripe->init();

        $stripe_response = json_decode($request->input('gateway_response'));

        $customer = $this->stripe->findOrCreateCustomer();

        try {
            $source = Customer::createSource($customer->id, ['source' => $stripe_response->token->id], array_merge($this->stripe->stripe_connect_auth, ['idempotency_key' => uniqid("st", true)]));
        } catch (InvalidRequestException $e) {
            throw new PaymentFailed($e->getMessage(), $e->getCode());
        }

        $client_gateway_token = $this->storePaymentMethod($source, $request->input('method'), $customer);

        $verification = route('client.payment_methods.verification', ['payment_method' => $client_gateway_token->hashed_id, 'method' => GatewayType::BANK_TRANSFER], false);

        $mailer = new NinjaMailerObject();

        $mailer->mailable = new ACHVerificationNotification(
            auth()->guard('contact')->user()->client->company,
            route('client.contact_login', ['contact_key' => auth()->guard('contact')->user()->contact_key, 'next' => $verification])
        );

        $mailer->company = auth()->guard('contact')->user()->client->company;
        $mailer->settings = auth()->guard('contact')->user()->client->company->settings;
        $mailer->to_user = auth()->guard('contact')->user();

        NinjaMailerJob::dispatch($mailer);

        return redirect()->route('client.payment_methods.verification', ['payment_method' => $client_gateway_token->hashed_id, 'method' => GatewayType::BANK_TRANSFER]);
    }

    public function updateBankAccount(array $event)
    {
        $stripe_event = $event['data']['object'];

        $token = ClientGatewayToken::query()->where('token', $stripe_event['id'])
                                   ->where('gateway_customer_reference', $stripe_event['customer'])
                                   ->first();

        if ($token && isset($stripe_event['object']) && $stripe_event['object'] == 'bank_account' && isset($stripe_event['status']) && $stripe_event['status'] == 'verified') {
            $meta = $token->meta;
            $meta->state = 'authorized';
            $token->meta = $meta;
            $token->save();
        }
    }

    public function verificationView(ClientGatewayToken $token)
    {
        if (isset($token->meta->state) && $token->meta->state === 'authorized') {
            return redirect()
                ->route('client.payment_methods.show', $token->hashed_id)
                ->with('message', __('texts.payment_method_verified'));
        }

        //double check here if we need to show the verification view.
        $this->stripe->init();

        $bank_account = Customer::retrieveSource($token->gateway_customer_reference, $token->token, [], $this->stripe->stripe_connect_auth);

        /* Catch externally validated bank accounts and mark them as verified */
        if (isset($bank_account->status) && $bank_account->status == 'verified') {
            $meta = $token->meta;
            $meta->state = 'authorized';
            $token->meta = $meta;
            $token->save();

            return redirect()
                ->route('client.payment_methods.show', $token->hashed_id)
                ->with('message', __('texts.payment_method_verified'));
        }

        $data = [
            'token' => $token,
            'gateway' => $this->stripe,
        ];

        return render('gateways.stripe.ach.verify', $data);
    }

    public function processVerification(Request $request, ClientGatewayToken $token)
    {
        $request->validate([
            'transactions.*' => ['integer', 'min:1'],
        ]);

        if (isset($token->meta->state) && $token->meta->state === 'authorized') {
            return redirect()
                ->route('client.payment_methods.show', $token->hashed_id)
                ->with('message', __('texts.payment_method_verified'));
        }

        $this->stripe->init();

        $bank_account = Customer::retrieveSource($request->customer, $request->source, [], $this->stripe->stripe_connect_auth);

        try {
            $bank_account->verify(['amounts' => request()->transactions]);

            $meta = $token->meta;
            $meta->state = 'authorized';
            $token->meta = $meta;
            $token->save();

            return redirect()
                ->route('client.payment_methods.show', $token->hashed_id)
                ->with('message', __('texts.payment_method_verified'));
        } catch (CardException $e) {
            return back()->with('error', $e->getMessage());
        }
    }

    /**
     * Make a payment WITH instant verification.
     */
    public function paymentView(array $data)
    {
        $data['gateway'] = $this->stripe;
        $data['currency'] = $this->stripe->client->getCurrencyCode();
        $data['payment_method_id'] = GatewayType::BANK_TRANSFER;
        $data['customer'] = $this->stripe->findOrCreateCustomer();
        $data['amount'] = $this->stripe->convertToStripeAmount($data['total']['amount_with_fee'], $this->stripe->client->currency()->precision, $this->stripe->client->currency());

        $description = $this->stripe->getDescription(false);

        $intent = false;

        if (count($data['tokens']) == 1) {
        
            $token = $data['tokens'][0];

            $meta = $token->meta;

            if(isset($meta->state) && $meta->state == 'unauthorized')
                return redirect()->route('client.payment_methods.show', $token->hashed_id);
        }

        if (count($data['tokens']) == 0) {
            $intent =
            $this->stripe->createPaymentIntent(
                [
                'amount' => $data['amount'],
                'currency' => $data['currency'],
                'setup_future_usage' => 'off_session',
                'customer' => $data['customer']->id,
                'payment_method_types' => ['us_bank_account'],
                'description' => $description,
                'metadata' => [
                    'payment_hash' => $this->stripe->payment_hash->hash,
                    'gateway_type_id' => GatewayType::BANK_TRANSFER,
                ],
                'statement_descriptor' => $this->stripe->getStatementDescriptor(),
            ]
            );
        }

        $data['client_secret'] = $intent ? $intent->client_secret : false;

        return render('gateways.stripe.ach.pay', $data);
    }

    public function tokenBilling(ClientGatewayToken $cgt, PaymentHash $payment_hash)
    {
        $amount = array_sum(array_column($payment_hash->invoices(), 'amount')) + $payment_hash->fee_total;

        $description = $this->stripe->getDescription(false);

        if (substr($cgt->token, 0, 2) === 'pm') {
            return $this->paymentIntentTokenBilling($amount, $description, $cgt, false);
        }

        $this->stripe->init();

        $response = null;

        try {
            $state = [
                'gateway_type_id' => GatewayType::BANK_TRANSFER,
                'amount' => $this->stripe->convertToStripeAmount($amount, $this->stripe->client->currency()->precision, $this->stripe->client->currency()),
                'currency' => $this->stripe->client->getCurrencyCode(),
                'customer' => $cgt->gateway_customer_reference,
                'source' => $cgt->token,
            ];

            $state['charge'] = \Stripe\Charge::create([
                'amount' => $state['amount'],
                'currency' => $state['currency'],
                'customer' => $state['customer'],
                'source' => $state['source'],
                'description' => $description,
            ], $this->stripe->stripe_connect_auth);

            $payment_hash->data = array_merge((array) $payment_hash->data, $state);
            $payment_hash->save();

            if ($state['charge']->status === 'pending' && is_null($state['charge']->failure_message)) {
                return $this->processPendingPayment($state, false);
            }

            return $this->processUnsuccessfulPayment($state);
        } catch (Exception $e) {
            if ($e instanceof CardException) {
                return redirect()->route('client.payment_methods.verification', ['payment_method' => $cgt->hashed_id, 'method' => GatewayType::BANK_TRANSFER]);
            }

            throw new PaymentFailed($e->getMessage(), $e->getCode());
        }
    }

    public function paymentIntentTokenBilling($amount, $description, $cgt, $client_present = true)
    {
        $this->stripe->init();

        $response = false;
        try {
            $data = [
                'amount' => $this->stripe->convertToStripeAmount($amount, $this->stripe->client->currency()->precision, $this->stripe->client->currency()),
                'currency' => $this->stripe->client->getCurrencyCode(),
                'payment_method' => $cgt->token,
                'customer' => $cgt->gateway_customer_reference,
                'confirm' => true,
                'description' => $description,
                'metadata' => [
                    'payment_hash' => $this->stripe->payment_hash->hash,
                    'gateway_type_id' => $cgt->gateway_type_id,
                ],
                'statement_descriptor' => $this->stripe->getStatementDescriptor(),
            ];

            if ($cgt->gateway_type_id == GatewayType::BANK_TRANSFER) {
                $data['payment_method_types'] = ['us_bank_account'];
            }

            $response = $this->stripe->createPaymentIntent($data);

            SystemLogger::dispatch($response, SystemLog::CATEGORY_GATEWAY_RESPONSE, SystemLog::EVENT_GATEWAY_SUCCESS, SystemLog::TYPE_STRIPE, $this->stripe->client, $this->stripe->client->company);
        } catch (\Exception $e) {
            $data = [
                'status' => '',
                'error_type' => '',
                'error_code' => '',
                'param' => '',
                'message' => '',
            ];

            switch ($e) {
                case $e instanceof CardException:
                    /** @var CardException $e */
                    $data['status'] = $e->getHttpStatus();
                    $data['error_type'] = $e->getError()->type;
                    $data['error_code'] = $e->getError()->code;
                    $data['param'] = $e->getError()->param;
                    $data['message'] = $e->getError()->message;
                    break;
                case $e instanceof RateLimitException:
                    $data['message'] = 'Too many requests made to the API too quickly';
                    break;
                case $e instanceof InvalidRequestException:
                    $data['message'] = 'Invalid parameters were supplied to Stripe\'s API';
                    break;
                case $e instanceof AuthenticationException:
                    $data['message'] = 'Authentication with Stripe\'s API failed';
                    break;
                case $e instanceof ApiErrorException:
                    $data['message'] = 'Network communication with Stripe failed';
                    break;

                default:
                    $data['message'] = $e->getMessage();
                    break;
            }

            $this->stripe->processInternallyFailedPayment($this->stripe, $e);

            SystemLogger::dispatch($data, SystemLog::CATEGORY_GATEWAY_RESPONSE, SystemLog::EVENT_GATEWAY_FAILURE, SystemLog::TYPE_STRIPE, $this->stripe->client, $this->stripe->client->company);
        }

        if (! $response) {
            return false;
        }

        $payment_method_type = PaymentType::ACH;

        $data = [
            'gateway_type_id' => $cgt->gateway_type_id,
            'payment_type' => PaymentType::ACH,
            'transaction_reference' => isset($response->latest_charge) ? $response->latest_charge : $response->charges->data[0]->id,
            'amount' => $amount,
        ];

        $payment = $this->stripe->createPayment($data, Payment::STATUS_PENDING);
        $payment->meta = $cgt->meta;
        $payment->save();

        $this->stripe->payment_hash->payment_id = $payment->id;
        $this->stripe->payment_hash->save();

        if ($client_present) {
            return redirect()->route('client.payments.show', ['payment' => $this->stripe->encodePrimaryKey($payment->id)]);
        }

        return $payment;
    }

    public function handlePaymentIntentResponse($request)
    {
        $response = json_decode($request->gateway_response);
        $bank_account_response = json_decode($request->bank_account_response);

        if ($response->status == 'requires_source_action' && $response->next_action->type == 'verify_with_microdeposits') {
            $method = $bank_account_response->payment_method->us_bank_account;
            $method = $bank_account_response->payment_method->us_bank_account;
            $method->id = $response->payment_method;
            $method->state = 'unauthorized';
            $method->next_action = $response->next_action->verify_with_microdeposits->hosted_verification_url;

            $customer = $this->stripe->getCustomer($request->customer);
            $cgt = $this->storePaymentMethod($method, GatewayType::BANK_TRANSFER, $customer);

            return redirect()->route('client.payment_methods.show', ['payment_method' => $cgt->hashed_id]);
        }

        $method = $bank_account_response->payment_method->us_bank_account;
        $method->id = $response->payment_method;
        $method->state = 'authorized';

        $this->stripe->payment_hash = PaymentHash::where('hash', $request->input('payment_hash'))->first();

        if ($response->id && $response->status === 'processing') {
            $payment_intent = PaymentIntent::retrieve($response->id, $this->stripe->stripe_connect_auth);

            $state = [
                'gateway_type_id' => GatewayType::BANK_TRANSFER,
                'amount' => $response->amount,
                'currency' => $response->currency,
                'customer' => $request->customer,
                'source' => $response->payment_method,
                'charge' => $response,
            ];

            $this->stripe->payment_hash->data = array_merge((array) $this->stripe->payment_hash->data, $state);
            $this->stripe->payment_hash->save();

            $customer = $this->stripe->getCustomer($request->customer);

            $this->storePaymentMethod($method, GatewayType::BANK_TRANSFER, $customer);

            return $this->processPendingPayment($state, true);
        }

        if ($response->next_action) {
        }
    }

    public function processPendingPaymentIntent($state, $client_present = true)
    {
        $this->stripe->init();

        $data = [
            'payment_method' => $state['source'],
            'payment_type' => PaymentType::ACH,
            'amount' => $state['amount'],
            'transaction_reference' => $state['charge'],
            'gateway_type_id' => GatewayType::BANK_TRANSFER,
        ];

        $payment = $this->stripe->createPayment($data, Payment::STATUS_PENDING);

        SystemLogger::dispatch(
            ['response' => $state, 'data' => $data],
            SystemLog::CATEGORY_GATEWAY_RESPONSE,
            SystemLog::EVENT_GATEWAY_SUCCESS,
            SystemLog::TYPE_STRIPE,
            $this->stripe->client,
            $this->stripe->client->company,
        );

        if (! $client_present) {
            return $payment;
        }

        return redirect()->route('client.payments.show', ['payment' => $this->stripe->encodePrimaryKey($payment->id)]);
    }

    public function paymentResponse($request)
    {
        $this->stripe->init();

        //it may be a payment intent here.
        if ($request->input('client_secret') != '') {
            return $this->handlePaymentIntentResponse($request);
        }

        $source = ClientGatewayToken::query()
            ->where('id', $this->decodePrimaryKey($request->source))
            ->where('company_id', auth()->guard('contact')->user()->client->company->id)
            ->first();

        if (! $source) {
            throw new PaymentFailed(ctrans('texts.payment_token_not_found'), 401);
        }

        $state = [
            'payment_method' => $request->payment_method_id,
            'gateway_type_id' => $request->company_gateway_id,
            'amount' => $this->stripe->convertToStripeAmount($request->amount, $this->stripe->client->currency()->precision, $this->stripe->client->currency()),
            'currency' => $request->currency,
            'customer' => $request->customer,
        ];

        $state = array_merge($state, $request->all());
        $state['source'] = $source->token;

        $this->stripe->payment_hash->data = array_merge((array) $this->stripe->payment_hash->data, $state);
        $this->stripe->payment_hash->save();

        $amount = array_sum(array_column($this->stripe->payment_hash->invoices(), 'amount')) + $this->stripe->payment_hash->fee_total;

        $description = $this->stripe->getDescription(false);

        if (substr($source->token, 0, 2) === 'pm') {
            return $this->paymentIntentTokenBilling($amount, $description, $source);
        }

        try {
            $state['charge'] = \Stripe\Charge::create([
                'amount' => $state['amount'],
                'currency' => $state['currency'],
                'customer' => $state['customer'],
                'source' => $state['source'],
                'description' => $description,
            ], $this->stripe->stripe_connect_auth);

            $state = array_merge($state, $request->all());

            $this->stripe->payment_hash->data = array_merge((array) $this->stripe->payment_hash->data, $state);
            $this->stripe->payment_hash->save();

            if ($state['charge']->status === 'pending' && is_null($state['charge']->failure_message)) {
                return $this->processPendingPayment($state);
            }

            return $this->processUnsuccessfulPayment($state);
        } catch (Exception $e) {
            if ($e instanceof CardException) {
                return redirect()->route('client.payment_methods.verification', ['payment_method' => $source->hashed_id, 'method' => GatewayType::BANK_TRANSFER]);
            }

            throw new PaymentFailed($e->getMessage(), $e->getCode());
        }
    }

    public function processPendingPayment($state, $client_present = true)
    {
        $this->stripe->init();

        $data = [
            'payment_method' => $state['source'],
            'payment_type' => PaymentType::ACH,
            'amount' => $this->stripe->convertFromStripeAmount($this->stripe->payment_hash->data->amount, $this->stripe->client->currency()->precision, $this->stripe->client->currency()),
            'transaction_reference' => $state['charge']->id,
            'gateway_type_id' => GatewayType::BANK_TRANSFER,
        ];

        $payment = $this->stripe->createPayment($data, Payment::STATUS_PENDING);

        SystemLogger::dispatch(
            ['response' => $state['charge'], 'data' => $data],
            SystemLog::CATEGORY_GATEWAY_RESPONSE,
            SystemLog::EVENT_GATEWAY_SUCCESS,
            SystemLog::TYPE_STRIPE,
            $this->stripe->client,
            $this->stripe->client->company,
        );

        if (! $client_present) {
            return $payment;
        }

        return redirect()->route('client.payments.show', ['payment' => $this->stripe->encodePrimaryKey($payment->id)]);
    }

    public function processUnsuccessfulPayment($state)
    {
        $this->stripe->sendFailureMail($state['charge']);

        $message = [
            'server_response' => $state['charge'],
            'data' => $this->stripe->payment_hash->data,
        ];

        SystemLogger::dispatch(
            $message,
            SystemLog::CATEGORY_GATEWAY_RESPONSE,
            SystemLog::EVENT_GATEWAY_FAILURE,
            SystemLog::TYPE_STRIPE,
            $this->stripe->client,
            $this->stripe->client->company,
        );

        throw new PaymentFailed('Failed to process the payment.', 500);
    }

    private function storePaymentMethod($method, $payment_method_id, $customer)
    {
        $state = property_exists($method, 'state') ? $method->state : 'unauthorized';

        try {
            $payment_meta = new \stdClass;
            $payment_meta->brand = (string) \sprintf('%s (%s)', $method->bank_name, ctrans('texts.ach'));
            $payment_meta->last4 = (string) $method->last4;
            $payment_meta->type = GatewayType::BANK_TRANSFER;
            $payment_meta->state = $state;

            if (property_exists($method, 'next_action')) {
                $payment_meta->next_action = $method->next_action;
            }

            $data = [
                'payment_meta' => $payment_meta,
                'token' => $method->id,
                'payment_method_id' => $payment_method_id,
            ];

            /**
             * Ensure the method does not already exist!!
             */

            $token = ClientGatewayToken::where([
                'gateway_customer_reference' => $customer->id,
                'token' => $method->id,
                'client_id' => $this->stripe->client->id,
                'company_id' => $this->stripe->client->company_id,
            ])->first();

            if($token)
                return $token;

            return $this->stripe->storeGatewayToken($data, ['gateway_customer_reference' => $customer->id]);
        } catch (Exception $e) {
            return $this->stripe->processInternallyFailedPayment($this->stripe, $e);
        }
    }
}