<?php

namespace App\Forms;

use App\Model\CouponsRepository;
use App\Model\OrderItemsRepository;
use App\Model\Entity\Coupon;
use \Nette\Utils\DateTime;
use Nette\Application\UI;


class CouponForm extends BaseFormControl
{

    /**
     * @var \App\Model\CouponsRepository
     * @inject
     */
    public $couponsRepository;

    /** @var \App\Model\Entity\Coupon */
    private $coupon = null;


    public function __construct(\App\Model\Entity\Coupon $coupon = NULL)
    {
        $this->coupon = $coupon;
    }


    public function render()
    {
        $template = $this->template;
        $template->coupon = $this->coupon;

        parent::render();
    }


    /**
     * @return UI\Form
     */
    protected function createComponentCoupon($name)
    {
        $form = parent::createComponentForm();

        $form->addDateInput('validityTo', 'order.coupon.validityTo')
            ->setDefaultValue($this->coupon ? $this->coupon->validityTo : new \DateTime)
            ->setOption('maxYear', date('Y') + 1)
            ->setRequired();

        $form->addSelect('type', 'order.coupon.type.name', CouponsRepository::$type)
            ->setPrompt('order.coupon.type.prompt')
            ->setDefaultValue($this->coupon ? $this->coupon->type : Coupon::TYPE_PERCENTAGE)
            ->setRequired();

        $form->addSelect('materialDiscount', 'order.coupon.materialDiscount.name', OrderItemsRepository::$type)
            ->setPrompt('order.coupon.materialDiscount.prompt')
            ->setDefaultValue($this->coupon ? $this->coupon->materialDiscount : null);

        $form->addCheckbox('unlimitedCount', 'order.coupon.unlimitedCount')
            ->setDefaultValue($this->coupon ? $this->coupon->unlimitedCount : null);

        $form->addText('discount', 'order.coupon.discount')
            ->setDefaultValue($this->coupon ? $this->coupon->discount : null)
            ->setRequired('order.coupon.requiredDiscount');

        $form->addText('code', 'order.coupon.code')
            ->setDefaultValue($this->coupon ? $this->coupon->code : null);

        if ($this->coupon) {
            $form['code']->setRequired('order.coupon.codeRequired');
        }

        $form->addCheckbox('freeDelivery', 'order.coupon.freeDelivery')
            ->setDefaultValue(new DateTime() <=  DateTime::from('31.12.2020') ? true : false);

        $form->addSubmit('save', 'forms.button.save');

        $form->onError[] = [$this, 'couponFormError'];
        $form->onValidate[] = [$this, 'couponFormValidate'];
        $form->onSuccess[] = [$this, 'couponFormSucceeded'];

        return $form;
    }


    /**
     * @param UI\Form $form
     * @return void
     */
    public function couponFormError(UI\Form $form)
    {
        $this->getPresenter()->postGet('this');
        $this->redrawControl('coupon');
    }


    /**
     * @param UI\Form $form
     * @return void
     */
    public function couponFormValidate(UI\Form $form, $values)
    {
        $coupon = $this->couponsRepository->getBy(['code' => $values->code]);

        if (($this->coupon && $coupon && $this->coupon->id != $coupon->id) || !$this->coupon && $coupon) {
            $form['code']->addError('order.coupon.duplicateCode');

            if ($this->isAjax()) {
                $this->redrawControl('coupon');
            }
        }
    }


    /**
     * @param UI\Form $form
     * @return void
     */
    public function couponFormSucceeded(UI\Form $form, $values)
    {

        if (!$this->coupon) {
            $this->couponsRepository->createCoupon(
                $values->validityTo,
                $values->discount,
                $values->type,
                $values->code,
                $values->unlimitedCount,
                $values->freeDelivery,
                $values->materialDiscount
            );
        } else {
            $this->couponsRepository->editCoupon($this->coupon, $values);
        }
    }
}