class Create extends ErrorStore
{

    const TRANSACTION_AMOUNT_EXCEEDED = 'TransactionAmountExceeded';
    const INVALID_CHARGE_STATUS = 'InvalidChargeStatus';
    const TRANSACTION_COUNT_EXCEEDED = 'TransactionCountExceeded';
    const PAYMENT_METHOD_NOT_ALLOWED = 'PaymentMethodNotAllowed';
    const AMAZON_REJECTED = 'AmazonRejected';
    const PROCESSING_FAILURE = 'ProcessingFailure';

    /**
     * AmazonPay module object
     *
     * @var AmazonPay
     */
    private $module;

    /**
     * Amazon Pay order object
     *
     * @var OrderMeta
     */
    private $order;

    /**
     * Sets `$module` member var with dependency injection.
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param AmazonPay $module
     * @param OrderMeta $order
     * @return void
     */
    public function __construct(AmazonPay $module, OrderMeta $order) {
        $this->module = $module;
        $this->order = $order;
        parent::__construct();
        $this->populate();
    }

    /**
     * Creates a Refund
     *
     * @see https://amazonpaycheckoutintegrationguide.s3.amazonaws.com/amazon-pay-api-v2/refund.html#create-refund
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string $chargeId Charge ID
     * @param int    $refundAmount
     * @param string $currencyCode
     * @param string $softDescriptor Default: ''
     * @return array
     * @throws InvalidArgumentException Thrown by `getAmazonClient`.
     */
    public function post(
        $chargeId,
        $refundAmount,
        $currencyCode,
        $softDescriptor = ''
    ) {
        $payload = [
            'chargeId' => $chargeId,
            'refundAmount' => [
                'amount' => $refundAmount,
                'currencyCode' => $currencyCode,
            ],
        ];
        if (!empty($softDescriptor)) {
            $payload['softDescriptor'] = $softDescriptor;
        }
        $headers = ['x-amz-pay-Idempotency-Key' => uniqid()];
        // $_ENV[SandboxSimulation::CREATE_REFUND_SIMCODE] = 'AmazonRejected';
        $headers = (new SandboxSimulation($this->module))->createRefundSetSimCodeIfSandbox($headers);

        try {
            $client = $this->module->getAmazonClient();
            $result = $client->createRefund($payload, $headers);
            if ($this->module->errors->hasError($result)) {
                $error = $this->module->errors->getAmzErrorResponse($result, $this);
                (new Logger())->logApiResponse(new Log(
                    $this->order->getChargePermissionId(),
                    Log::ACTION_ASYNC_REFUND,
                    $error->errorcode,
                    $refundAmount,
                    $error
                ));
                return $error;
            }
        } catch (\Exception $e) {
            return $this->module->errors->getErrorResponse(
                GenericErrorStore::AMAZON_PAY_SDK_CLIENT_EXCEPTION,
                [$e->getMessage()]
            );
        }

        $response = json_decode($result['response'], true);
        $details = $response['statusDetails'];
        $this->order->setRefundState(
            new State(
                $details['state'],
                $details['reasonCode'],
                $details['reasonDescription']
            ),
            $response['refundId'],
            $refundAmount
        );
        (new Logger())->logApiResponse(new Log(
            $this->order->getChargePermissionId(),
            Log::ACTION_ASYNC_REFUND,
            Log::RESPONSE_OK,
            $refundAmount
        ));
        return $result;
    }

    /**
     * Populates error store
     *
     * @see https://amazonpaycheckoutintegrationguide.s3.amazonaws.com/amazon-pay-api-v2/refund.html#error-codes
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return void
     * @throws InvalidArgumentException Thrown if duplicate errorcodes exist.
     */
    public function populate() {
        $this->addError(new GenericError(
            self::TRANSACTION_AMOUNT_EXCEEDED,
            $this->getConstantNameByValue(self::TRANSACTION_AMOUNT_EXCEEDED),
            400,
            function ($message) {
                return $message;
            },
            __('You\'ve exceeded the maximum refund amount allowed for this Refund', 'wcexaap')
        ));

        $this->addError(new GenericError(
            self::INVALID_CHARGE_STATUS,
            $this->getConstantNameByValue(self::INVALID_CHARGE_STATUS),
            422,
            function ($message) {
                return $message;
            },
            __('You tried to call a Refund operation on a Charge that is not in a Completed state. Check the Charge status for more information', 'wcexaap')
        ));

        $this->addError(new GenericError(
            self::TRANSACTION_COUNT_EXCEEDED,
            $this->getConstantNameByValue(self::TRANSACTION_COUNT_EXCEEDED),
            422,
            function ($message) {
                return $message;
            },
            __('You\'ve exceeded the maximum limit of 10 Refunds per Charge', 'wcexaap')
        ));

        $this->addError(new GenericError(
            self::AMAZON_REJECTED,
            $this->getConstantNameByValue(self::AMAZON_REJECTED),
            422,
            function ($message) {
                return $message;
            },
            __('Amazon has rejected the refund. You should issue a refund to the buyer in an alternate manner (for example, a gift card or store credit)', 'wcexaap')
        ));

        $this->addError(new GenericError(
            self::PROCESSING_FAILURE,
            $this->getConstantNameByValue(self::PROCESSING_FAILURE),
            500,
            function ($message) {
                return $message;
            },
            __('Amazon could not process the transaction because of an internal processing error or because the buyer has already received a refund from an A-to-z claim or a chargeback. You should only retry the Refund if the Charge object is in the Captured state. Otherwise, you should refund the buyer in an alternative way (for example, a store credit or a check)', 'wcexaap')
        ));
    }
}