<?php
declare(strict_types=1);

namespace Esun\Agent\Controller\Index;

use Esun\Agent\Model\ApplicationFactory;
use Magento\Framework\App\Action\HttpPostActionInterface;
use Magento\Framework\App\RequestInterface;
use Magento\Framework\Controller\Result\Json;
use Magento\Framework\Controller\Result\JsonFactory;
use Magento\Framework\Exception\LocalizedException;
use Psr\Log\LoggerInterface;

class Apply implements HttpPostActionInterface
{
    public function __construct(
        private readonly RequestInterface $request,
        private readonly JsonFactory $jsonFactory,
        private readonly ApplicationFactory $applicationFactory,
        private readonly LoggerInterface $logger
    ) {
    }

    public function execute(): Json
    {
        $result = $this->jsonFactory->create();

        try {
            $data = $this->validateRequest();
            $this->applicationFactory->create()
                ->setData($data)
                ->save();

            return $result->setData([
                'success' => true,
                'message' => (string)__('Thank you. Your application has been submitted successfully.'),
            ]);
        } catch (LocalizedException $exception) {
            $result->setHttpResponseCode(422);
            return $result->setData([
                'success' => false,
                'message' => $exception->getMessage(),
            ]);
        } catch (\Throwable $exception) {
            $this->logger->critical($exception);
            $result->setHttpResponseCode(500);
            return $result->setData([
                'success' => false,
                'message' => (string)__('Unable to submit your application. Please try again later.'),
            ]);
        }
    }

    private function validateRequest(): array
    {
        if (trim((string)$this->request->getParam('hideit', '')) !== '') {
            throw new LocalizedException(__('Unable to submit your application.'));
        }

        $data = [
            'company_name' => trim((string)$this->request->getParam('company_name', '')),
            'contact_person' => trim((string)$this->request->getParam('contact_person', '')),
            'country' => trim((string)$this->request->getParam('country', '')),
            'email' => trim((string)$this->request->getParam('email', '')),
            'message' => trim((string)$this->request->getParam('message', '')),
        ];

        if ($data['company_name'] === '') {
            throw new LocalizedException(__('Enter the company name.'));
        }
        if ($data['contact_person'] === '') {
            throw new LocalizedException(__('Enter the contact person.'));
        }
        if ($data['country'] === '') {
            throw new LocalizedException(__('Select a country.'));
        }
        if (!filter_var($data['email'], FILTER_VALIDATE_EMAIL)) {
            throw new LocalizedException(__('Enter a valid email address.'));
        }
        if (
            mb_strlen($data['company_name']) > 255 ||
            mb_strlen($data['contact_person']) > 255 ||
            mb_strlen($data['country']) > 255 ||
            mb_strlen($data['email']) > 255
        ) {
            throw new LocalizedException(__('One or more fields are too long.'));
        }
        if (mb_strlen($data['message']) > 5000) {
            throw new LocalizedException(__('The message must not exceed 5000 characters.'));
        }

        return $data;
    }
}