<?php

namespace rednaoeasycalculationforms\core\Managers\FormManager\Calculator;

use Exception;
use rednaoeasycalculationforms\core\Managers\FormManager\Fields\FBMultipleOptionsField;
use rednaoeasycalculationforms\core\Managers\FormManager\Utilities\NumericUtilities;

class SurveyOptionsCalculator extends CalculatorBase
{
    /** @var FBMultipleOptionsField */
    public $Field;
    public $IsValid;
    public function ExecutedCalculation($value)
    {
        $this->IsValid = true;
        $selectedOptions = $this->Field->GetSelectedOptions();
        if(count($selectedOptions) == 0)
            return $this->CreateCalculationObject('', '', 0);

        $this->OptionsTotal = array();

        foreach($selectedOptions as $currentOption)
        {
            $result = null;
            switch ($currentOption->PriceType)
            {
                case 'fixed_amount':
                    $result = (new FixedAmountCalculator($this->Field))
                                ->SetRegularPrice($currentOption->RegularPrice)
                                ->SetSalePrice($currentOption->SalePrice)
                                ->ExecutedCalculation('aa');
                    break;

            }

            if($result == null)
                throw new Exception('Invalid price type ' . $currentOption->PriceType);

            $optionsTotal = array(
              'Id' => $currentOption->Id,
              'SalePrice' => $result['SalePrice'],
              'RegularPrice' => $result['RegularPrice'],
              'UnitPrice' => $result['SalePrice'] == '' ? $result['RegularPrice'] : $result['SalePrice'],
              'Quantity' => 0
            );

            if($optionsTotal['UnitPrice'] == '')
                $optionsTotal['UnitPrice'] = 0;
            else
                $optionsTotal['UnitPrice'] = \floatval($optionsTotal['UnitPrice']);

            $optionsTotal['Price'] = $optionsTotal['UnitPrice'];

            $this->OptionsTotal[] = $optionsTotal;
            if(\floatval($currentOption->SalePrice) != \floatval($optionsTotal['SalePrice']) ||
                \floatval($currentOption->UnitPrice) != \floatval($optionsTotal['UnitPrice']) ||
                \floatval($currentOption->Price) != \floatval($optionsTotal['Price'])

            )
                $this->IsValid = false;

            $currentOption->total->Price = $optionsTotal['UnitPrice'];
            $currentOption->total->Quantity = 0;
            $currentOption->total->RegularPrice = NumericUtilities::ParseNumber($result['RegularPrice'], 0);
            $currentOption->total->SalePrice = NumericUtilities::ParseNumber($result['SalePrice'], 0);

        }

        $priceToReturn = $this->CreateCalculationObject(0, 0, 0);
        $hasSalePrice = false;
        foreach($this->OptionsTotal as $total)
        {
            if($total['SalePrice'] != '')
                $hasSalePrice = true;
        }

        foreach($this->OptionsTotal as $total)
        {
            if($hasSalePrice)
            {
                $priceToReturn['SalePrice'] += \floatval($total['Price']);
                $priceToReturn['RegularPrice'] += \floatval($total['RegularPrice']);
            }else{
                $priceToReturn['SalePrice'] = 0;
                $priceToReturn['RegularPrice'] += \floatval($total['Price']);
            }
        }

        return $priceToReturn;

    }

    public function GetIsValid()
    {
        return $this->IsValid;
    }

    public function GetDependsOnOtherFields() {
        $selectedOptions = $this->Field->GetSelectedOptions();
        foreach($selectedOptions as $currentOption)
        {
            if($currentOption->PriceType == 'percent_or_original_price_plus_options')
                return true;
        }

        return false;
    }

    private function AddOption($original, $ammountToAdd)
    {
        if($ammountToAdd['RegularPrice'] != '')
        {
            $original['RegularPrice'] = NumericUtilities::ParseNumber($original['RegularPrice'], 0) + NumericUtilities::ParseNumber($ammountToAdd['RegularPrice'], 0);
        }

        if($ammountToAdd['SalePrice'] != '')
        {
            $original['SalePrice'] = NumericUtilities::ParseNumber($original['SalePrice'], 0) + NumericUtilities::ParseNumber($ammountToAdd['SalePrice'], 0);
        }

        return $original;
    }

    public function GetLineItems()
    {
        $item = parent::GetLineItems()[0];

        $options = $this->GetSelectedOptions();

        $itemList = array();
        foreach($options as $currentOption)
        {
            $newItem = $item->CloneItem();
            $newItem->Value = $currentOption->Label;
            $newItem->UnitPrice = $currentOption->total->Price;
            $itemList[] = $newItem;
        }

        return $itemList;
    }

}