<?php

namespace modules\contacts\views;

use Users;
use Captcha;
use Contacts;
use bff\view\Form;

/**
 * Contact page > Form
 * @copyright Tamaranga
 */
class ContactForm extends Form
{
    /** @var string */
    public $title = '';
    /** @var string */
    public $captcha = '1';
    /** @var string */
    public $captcha_key = 'contact-form';
    /** @var string|null */
    public $successUrl;

    public function init()
    {
        parent::init();

        $this->setTemplate('contact.form', 'contacts');
        $this->setTitle(_t('@contacts', 'Contact Form'));
        $this->useBlocksRotation();
    }

    public function data()
    {
        $data = parent::data();

        $user = $this->request->user();

        $data['user'] = ($user ? $user->data(['name', 'email']) : ['name' => '', 'email' => '']);
        $data['guest'] = $this->isGuest();
        $data['captcha'] = $this->hasCaptcha();
        $data['types'] = Contacts::getContactTypes();

        return $data;
    }

    public function submit()
    {
        $data = $this->validate();
        if ($this->errors->any()) {
            return parent::submit();
        }

        $type = $data['type'];
        unset($data['type']);

        $data['user_ip'] = $this->request->remoteAddress();
        $data['useragent'] = $this->request->userAgent();

        $contact = Contacts::sendContactMessage($data, $type, $this->request->user());
        if (! $contact) {
            $this->errors->reloadPage();
            return parent::submit();
        }

        if ($this->successUrl) {
            $this->respond('redirect', $this->successUrl);
        } else {
            $this->respond('message', _t('contacts', 'Your message was successfully sent. <br /> We will try to answer it as soon as possible.'));
        }
        return parent::submit();
    }

    public function validate($data = [])
    {
        $data = $this->validateUsingRules($data, [
            'name' => [
                TYPE_NOTAGS, 'limit' => $this->config('contacts.form.name.limit', 70, TYPE_UINT),
                function (&$name) {
                    # todo
                    $clean = ['name' => &$name];
                    Users::i()->cleanUserData($clean, ['name'], ['name_length' => mb_strlen($name)]);
                    return true;
                },
            ],
            'email' => [
                TYPE_NOTAGS, 'limit' => $this->config('contacts.form.email.limit', 70, TYPE_UINT),
                'email' => ['message' => _t('contacts', 'Incorrect email address')],
            ],
            'message' => [
                TYPE_TEXT, 'limit' => $this->config('contacts.form.message.limit', 3000, TYPE_UINT),
                'min' => [
                    $this->config('contacts.form.message.min', 10, TYPE_UINT),
                    'message' => _t('contacts', 'Message text is too short'),
                ],
            ],
            'type' => TYPE_UINT,
        ]);

        if ($this->errors->any()) {
            return $data;
        }

        $user = $this->request->user();
        if ($user) {
            $data['name'] = $data['name'] ?: $user->data('name');
            if (! $this->input->isEmail($data['email'])) {
                $data['email'] = $user->email();
            }
        } else {
            if (empty($data['name'])) {
                $this->errors->set(_t('contacts', 'Enter your name'), 'name');
            }
            if (! $this->input->isEmail($data['email'])) {
                $this->errors->set(_t('contacts', 'Incorrect email address'), 'email');
            }
        }

        $data = $this->validateBlocks($data);
        if ($this->errors->any()) {
            return $data;
        }

        if ($this->hasCaptcha()) {
            $this->isCaptchaValid($this->captcha_key);
        } else {
            if ($this->errors->no()) {
                $this->tooManyRequests($this->getKey());
            }
        }

        return $data;
    }

    /**
     * Is current user guest
     * @return bool
     */
    public function isGuest()
    {
        return is_null($this->request->user());
    }

    /**
     * Use captcha (if guest)
     * @return bool
     */
    public function hasCaptcha()
    {
        if (! $this->isGuest()) {
            return false;
        }

        return Captcha::enabled($this->captcha_key);
    }

    /**
     * @inheritdoc
     */
    public function settingsForm($form)
    {
        $form->text('title', _t('@site', 'Form Title'), _t('contacts', 'Contact Form', true));
        $form->select('captcha', _t('@contacts', 'Captcha in the form'), $this->captcha, function () {
            return Captcha::actionDriverOptions();
        })
            ->sysAdmin('captcha.enabled.' . $this->captcha_key);
    }
}