<?php

class CaratyConfirmOrderModuleFrontController extends ModuleFrontController {

    /**
     * @var string
     */
    private $formButtonUrl = 'https://ewniosek.credit-agricole.pl/eWniosek/res/buttons/fill_md_comp.png';

    /**
     * @var array
     */
    private $formData;

    /**
     * @var string
     */
    private $formUrl = 'https://ewniosek.credit-agricole.pl/eWniosek/simulator_u.jsp';

    /**
     * @var array
     */
    private $formattedIdentifiers = [
        'PARAM_AUTH',
        'POST_ATTR',
        'PARAM_CREDIT_AMOUNT',
        'PARAM_PROFILE',
        'PARAM_TYPE',
    ];

    /**
     * @var boolean
     */
    private $isCartIdValidated;

    /**
     * @return void
     */
    private function confirmOrder() {
        try {
            $cart = new Cart($this->formData['cart_orderNumber']);
            if (!Order::getIdByCartId($cart->id)) {
                if (
                    $cart->id_customer == 0
                    || $cart->id_address_delivery == 0
                    || $cart->id_address_invoice == 0
                    || !$this->module->active
                ) {
                    Tools::redirect('index.php?controller=order&step=1');
                }

                $customer = new Customer($cart->id_customer);

                if (!Validate::isLoadedObject($customer)) {
                    Tools::redirect('index.php?controller=order&step=1');
                }

                $currency = $this->context->currency;

                $total = (float)$cart->getOrderTotal(true, Cart::BOTH);

                $this->module->validateOrder(
                    (int)$cart->id,
                    Configuration::get('PAYMENT_NEW_STATE'),
                    $total,
                    $this->module->displayName,
                    null,
                    null,
                    (int)$currency->id,
                    false,
                    $customer->secure_key
                );
            }
        } catch (\Exception $exception) {
            PrestaShopLogger::addLog('CaConfirmation::confirmOrder() - ' . $exception->getMessage(), 3);
        }
    }

    /**
     * @return array|null
     */
    private function prepareFormData() {
        try {
            $cart = $this->context->cart;
            $orderId = Order::getOrderByCartId((int)($cart->id));
            $data = [];
            foreach ($this->formData as $key => $value) {
                $verified = false;
                foreach ($this->formattedIdentifiers as $identifier) {
                    if ($key == $identifier) {
                        $verified = true;
                    }
                }

                if ($verified === true) {
                    $data[$key] = $value;
                } else {
                    $verifiedKey = str_replace('_', '.', $key);
                    $data[$verifiedKey] = $value;
                }
            }
            
            if($data['cart.itemName1'] === 'Zamówienie numer ' . $cart->id) {
                $data['cart.itemName1'] = 'Zamówienie numer ' . $orderId;
            }

            $data['PARAM_HASH'] = $this->generateHash($data);
            $data['cart.orderNumber'] = '';
            if (Configuration::get('CARATY_ORDER_NUMBER_REPLACE')) {
                $sql = 'SELECT reference'
                    . ' FROM ' . _DB_PREFIX_ . 'orders'
                    . ' ORDER BY date_add DESC';
                $data['cart.orderNumber'] = Db::getInstance()->getRow($sql)['reference'];
            }

            if (empty($data['cart.orderNumber'])) {
//                $data['cart.orderNumber'] = Order::getOrderByCartId($data['cart.orderNumber']);
                $data['cart.orderNumber'] = $orderId;
            }

            $order = new Order((int)$orderId);
            $customer = new Customer($order->id_customer);
            $data['email.address'] = $customer->email;

            return $data;
        } catch (\Exception $exception) {
            PrestaShopLogger::addLog('CaConfirmation::prepareFormData() - ' . $exception->getMessage(), 3);
        }

        return null;
    }

    /**
     * @return bool
     */
    private function validate() {
        if (
            isset($this->formData)
            && isset($this->formData['PARAM_TYPE'])
            && isset($this->formData['PARAM_PROFILE'])
            && isset($this->formData['POST_ATTR'])
            && isset($this->formData['PARAM_CREDIT_AMOUNT'])
            && isset($this->formData['PARAM_AUTH'])
            && $this->validateCartId()
        ) {
            return true;
        }

        PrestaShopLogger::addLog('CaConfirmation::validate() - form validation failed', 3);

        return false;
    }

    /**
     * @return bool
     */
    private function validateCartId() {
        if ($this->isCartIdValidated) {
            $cartId = $this->formData['cart_orderNumber'];
            if (
                !is_numeric($cartId)
                && strlen($cartId) != 9
            ) {
                PrestaShopLogger::addLog('CaConfirmation::validateCartId() - form validation failed. Cart ID:' . $cartId, 3);

                return false;
            }
        }

        return true;
    }

    /**
     * @return void
     */
    public function init() {
        parent::init();

        $this->isCartIdValidated = Configuration::get('CARATY_VALIDATE_CART_ID');
        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
            if (!empty($_POST)) {
                $this->formData = $_POST;
                $this->confirmOrder();
            }
        } else {
            Tools::redirect('index');
        }
    }

    /**
     * @return void
     */
    public function initContent() {
        parent::initContent();

        try {
            $formLogo = Configuration::get('CARATY_LOGO_SEND');
            if ($formLogo == null) {
                $formLogo = $this->formButtonUrl;
            }
        } catch (Exception $exception) {
            $formLogo = $this->formButtonUrl;
        }

        if ($this->validate()) {
            $this->context->smarty->assign(
                'caraty',
                [
                    'formUrl'       => $this->formUrl,
                    'formButtonUrl' => $formLogo,
                    'inputVars'     => $this->prepareFormData(),
                ]
            );
        }

        $this->setTemplate('../../../modules/caraty/views/templates/front/confirm_order.tpl');
    }

    private function generateHash($data) {
        $hash =
            Configuration::get('CARATY_PSP_ID')
            . 'RAT2'
            . $data['PARAM_CREDIT_AMOUNT']
            . $data['cart.itemName1']
            . $data['cart.itemPrice1']
            . $data['randomizer']
            . Configuration::get('CARATY_PASSWORD');

        return md5($hash);
    }
}