<?php

namespace rednaoeasycalculationforms\core\Managers\FormManager\Calculator;

use rednaoeasycalculationforms\core\Managers\FormManager\Fields\FBFieldBase;
use rednaoeasycalculationforms\core\Managers\FormManager\Utilities\NumericUtilities;
use rednaoeasycalculationforms\core\Managers\SerializationManager\SanitizationManager;
use rednaoeasycalculationforms\Utilities\Sanitizer;

abstract class CalculatorBase
{
    public $RegularPrice;
    public $SalePrice;
    public $IsSale;
    public $IsUsed;
    public $Quantity;
    public $Price;
    /** @var FBFieldBase */
    public $Field;
    public function __construct($field)
    {
        $this->Price = null;
        $this->SalePrice = null;
        $this->RegularPrice = null;
        $this->Field = $field;
        $this->Quantity = 0;
    }

    public function GetIsDiscount()
    {
        return false;
    }

    public function UpdatePrice($newPrice, $newSale, $newQuantity)
    {
        $this->Quantity = $newQuantity;

        if($newPrice == '' && $newSale == '')
        {
            $this->Price = 0;
            $this->IsUsed = false;
            $this->SalePrice = 0;
        }else{
            $this->IsUsed = true;
            $price = NumericUtilities::ParseNumber($newPrice, 0);
            if($newSale != '')
            {
                $this->IsUsed = true;
                $salePrice = NumericUtilities::ParseNumber($newSale, 0);
                $this->Price = $salePrice;
                $this->SalePrice = $salePrice;
                $this->RegularPrice = $price;
            }else{
                $this->IsUsed = true;
                $this->Price = $price;
                $this->SalePrice = 0;
                $this->RegularPrice = $price;
            }

        }

        if($this->Quantity > 0)
            $this->IsUsed = true;

    }

    public function GetIsSale() {
        return $this->IsSale;
    }

    public function GetPrice() {
        return Sanitizer::GetNumberValueFromPath($this, ['Field', 'Entry', 'Price'], 0);
    }

    public function GetQuantity() {
        if($this->Field->IsUsed())
            return max(1, Sanitizer::GetNumberValueFromPath($this, ['Field', 'Entry', 'Quantity']));
        else
            return 0;
    }

    public function GetIsValid() {

        if($this->Field->Entry == null)
            return true;

        $result = $this->ExecutedCalculation(null);

        $frontPrice = Sanitizer::SanitizeNumber(Sanitizer::GetStringValueFromPath($this->Field, ['Entry', 'UnitPrice']));
        $frontQuantity = Sanitizer::SanitizeNumber(Sanitizer::GetStringValueFromPath($this->Field, ['Entry', 'Quantity']));

        $serverPrice = Sanitizer::SanitizeNumber(Sanitizer::GetStringValueFromPath($result, ['RegularPrice']));
        $serverQuantity = Sanitizer::SanitizeNumber(Sanitizer::GetStringValueFromPath($result, ['Quantity']));

        $frontTotal = Sanitizer::SanitizeNumber(Sanitizer::GetStringValueFromPath($this->Field, ['Entry', 'Price']));
        return $frontPrice == $serverPrice && $frontQuantity == $serverQuantity && bccomp($frontTotal, $serverPrice * $serverQuantity, 4) === 0;

    }

    public function CanCalculateQuantity() {
        return false;
    }

    public function CreateCalculationObject($regularPrice, $salePrice, $quantity)
    {
        return array(
            'Quantity' => $quantity,
            'RegularPrice' => $regularPrice,
            'SalePrice' => $salePrice
        );
    }

    public function GetDependsOnOtherFields() {
        return false;
    }

    public function ExecuteAndUpdate() {
        $price = $this->ExecutedCalculation(null);
    //    $this->UpdatePrice($price['RegularPrice'],$price['SalePrice'],$price['Quantity']);

    }

    public function Sanitize($sanitizer)
    {
        $sanitizer->AddStringSanitizer('PriceType');
        $sanitizer->AddNumericSanitizer('Price');
        $sanitizer->AddNumericSanitizer('Quantity');
        $sanitizer->AddNumericSanitizer('UnitPrice');
    }
    public abstract function ExecutedCalculation($value);
}