<?php

namespace Lc\ShopBundle\Model ;

use Lc\ShopBundle\Context\UnitInterface;

trait PriceTrait
{
        /**
         * @ORM\Column(type="float", nullable=true)
         */
        protected $price;

        /**
         * @ORM\ManyToOne(targetEntity="Lc\ShopBundle\Context\UnitInterface")
         * @ORM\JoinColumn(nullable=true)
         */
        protected $unit;

        /**
         * @ORM\ManyToOne(targetEntity="Lc\ShopBundle\Context\TaxRateInterface")
         * @ORM\JoinColumn(nullable=true)
         */
        protected $taxRate;

        public function getPrice(): ?float
        {
                return $this->price;
        }

        public function getPriceInherited(): ?float
        {
                return $this->getPrice() ;
        }

        public function getUnitInherited(): ?Unit
        {
                return $this->getUnit() ;
        }

        public function getTaxRateInherited(): ?TaxRate
        {
                return $this->getTaxRate() ;
        }

        public function getPriceWithTax(): ?float
        {
                return $this->calculatePriceWithTax($this->getPriceInherited(), $this->getTaxRateInherited()->getValue()) ;
        }

        public function getPriceByUnitRef(): ?float
        {
                return ($this->getPriceInherited() * $this->getUnitInherited()->getCoefficient()) / $this->getQuantityInherited() ;
        }

        public function getPriceByUnitRefWithTax(): ?float
        {
                return $this->calculatePriceWithTax($this->getPriceByUnitRef(), $this->getTaxRateInherited()->getValue()) ;
        }

        public function setPrice(float $price): self
        {
                $this->price = $price;

                return $this;
        }

        public function getUnit(): ?Unit
        {
                return $this->unit;
        }

        public function setUnit(Unit $unit): self
        {
                $this->unit = $unit;

                return $this;
        }

        public function getTaxRate(): ?TaxRate
        {
                return $this->taxRate;
        }

        public function setTaxRate(?TaxRate $taxRate): self
        {
                $this->taxRate = $taxRate;

                return $this;
        }

        private function calculatePriceWithTax($priceWithoutTax, $taxRateValue): ?float
        {
                $price = floatval($priceWithoutTax) * ($taxRateValue/100 + 1) ;
                $price = round(( ($price * 100)) / 100, 2) ;
                return $price ;
        }
}