OOPriceCalculator

team

Lucas | Mo | Michael

---

Day 1 : standing meeting. talked about how we where going to talk this. started to configure everything we need to work on it. making repo, adding contributor. making a file structure(MVC) etc.

day 2 : added .env file to get acces to data base. connected to the database executed some tests. made dropdowns with all the customers and products in the home View.

day 3 : started to add the logic.

To calculate the price:

• For the customer group: In case of variable discounts look for highest discount of all the groups the user has. retrieving all the related groups:

//retrieving all the related groups:

    public function retrieveAllRelatedGroups($group_id){

        $allRelatedGroups = [];

        $newId = $group_id;

        do{
            $group = $this->retrieveGroup($newId);
            array_push($allRelatedGroups, $group);
            $newId = $group['parent_id'];
        }
        while($newId);

        return $allRelatedGroups;
    }

• If some groups have fixed discounts, count them all up.

     public function getAllFixedDiscounts(){

    $totalFixed = 0;

    foreach($this->user->getRelatedGroups() as $item ){

     $totalFixed += $item['fixed_discount'];

    }

    return $totalFixed;

}
    }

• Look which discount (fixed or variable) will give the customer the most value.

    public function getCompareFixedWithVariableCustomerGroupDiscounts()
    {
        $fixedResult = $this->getAllFixedDiscounts();
        $variableResult = $this->getHighestVariableDiscounts();


        $getProductPrice = $this->product->getProductPrice();
        if($fixedResult/$getProductPrice > $variableResult/$getProductPrice){

            return max($fixedResult, $variableResult);
        }
    }

• Now look at the discount of the customer.

    public function getHighestFixedDiscountCustomer()
    {
        $compareFixedDiscount = $this->getAllFixedDiscounts();
        if ($this->user->getFixedDiscount() > $compareFixedDiscount) {
            return $this->user->getFixedDiscount();
        } else {
            return $compareFixedDiscount;
        }
    }

• In case both customer and customer group have a percentage, take the largest percentage.

•     public function findBetterDiscount()
    {
  
        $productPrice = ($this->product->getProductPrice() / 100);
            
        $highestDiscountVariable = $this->getHighestVariableDiscounts();
        $discountableFixed = $this->getAllFixedDiscounts();
  
        if($highestDiscountVariable < $this->user->getVariableDiscount()) {
                $highestDiscountVariable = $this->user->getVariableDiscount();
            }
  
  
        $calculatedpriceFixed = $productPrice - $discountableFixed;
        $gettingVariablePercentage = ($productPrice * $highestDiscountVariable) /100;
        $calculatedPriceVariable = $productPrice - $gettingVariablePercentage;
        //$priceWithBestDiscount = $productPrice - $discountableFixed;
        if($calculatedPriceVariable > $calculatedpriceFixed){
            return $calculatedpriceFixed;
        }else {
            return $gettingVariablePercentage;
        }
  
    }
  

• First subtract fixed amounts, then percentages! A price can never be negative.

    public function finalCalculation()
    {

$finalPrice = 0;

        $productPrice = ($this->product->getProductPrice() / 100);
        if ($this->user->getFixedDiscount()) {
            $firstFixed = $productPrice - $this->user->getFixedDiscount();
            $finalPrice = $firstFixed - $this->findBetterDiscount();
            $finalPrice = round($finalPrice);
        }else {
            $finalVariableGroupsDiscount = round($this->findBetterDiscount());
            $finalPrice = round($productPrice - $this->findBetterDiscount());
        }

        if($finalPrice < 0) {
            $finalPrice = 0;
        }
        
        return $finalPrice * $this->quantity->getQuantity();

    }

• show details in the view

    public function getBaseInfo(){

        $customerName = $this->user->getFullName();
        $productName = $this->product->getName();

        $baseProductPrice = $this->product->getProductPrice() / 100;
        $quantity = $this->quantity->getQuantity();

        $customerFixed = $this->user->getFixedDiscount();
        $customerVariable = $this->user->getVariableDiscount();

        $totalGroupFixed = $this->getAllFixedDiscounts();
        $highestGroupVariable = $this->getHighestVariableDiscounts();



        $baseInfo = ["baseProductPrice" => $baseProductPrice, "quantity" => $quantity, "customerFixed" => $customerFixed, "customerVariable" => $customerVariable, "totalGroupFixed" => $totalGroupFixed, "highestGroupVariable" => $highestGroupVariable, "customerName" => $customerName, "productName" => $productName];
        foreach($baseInfo as $key => $info){
            if(!$info){
                $baseInfo[$key] = "N/A";
            }
        }

        return $baseInfo;

    }

• adding quantity