Issue #1465: add guest count to calculate quote price

src/Command/CalculateQuotePrice.php

@@ -9,6 +9,8 @@ class CalculateQuotePrice
 
     public ?\DateTime $arrivalDate;
 
+    public ?int $guestCount = null;
+
     public ?int $nightsCount = null;
 
     public function __construct()

src/CommandHandler/CalculateQuotePriceHandler.php

@@ -18,6 +18,10 @@ public function __construct(QuotePriceCalculator $priceCalculator)
 
     public function __invoke(CalculateQuotePrice $command): void
     {
-        $command->amount = $this->priceCalculator->calculate($command->arrivalDate, $command->nightsCount);
+        $command->amount = $this->priceCalculator->calculate(
+            $command->arrivalDate,
+            $command->nightsCount,
+            $command->guestCount
+        );
     }
 }

src/Controller/QuotesController.php

@@ -37,6 +37,7 @@ public function index(Request $request): Response
                     'amount' => $command->amount,
                     'nights_count' => $command->nightsCount,
                     'arrival_date' => $command->arrivalDate,
+                    'guest_count' => $command->guestCount,
                 ]
             );
         }

src/Form/CalculateQuotePriceForm.php

@@ -30,6 +30,12 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
             [
                 'label' => 'nights_count',
             ]
+        )->add(
+            'guestCount',
+            IntegerType::class,
+            [
+                'label' => 'guest_count',
+            ]
         )->add(
             'submit',
             SubmitType::class,

src/Service/QuotePriceCalculator.php

@@ -12,7 +12,7 @@ public function __construct(PriceListFactory $priceListFactory)
         $this->priceListFactory = $priceListFactory;
     }
 
-    public function calculate(\DateTime $arrivalDate, int $nightsCount): float
+    public function calculate(\DateTime $arrivalDate, int $nightsCount, int $guestCount): float
     {
         if ($nightsCount <= 0) {
             throw new \Exception();
@@ -23,7 +23,7 @@ public function calculate(\DateTime $arrivalDate, int $nightsCount): float
         $pricePerNight = $priceList->getPricePerNight($arrivalDate);
         $discountPercentage = $this->getLongStayDiscountPercentage($nightsCount);
 
-        return $pricePerNight * $nightsCount * (1 - $discountPercentage);
+        return $pricePerNight * $nightsCount * $guestCount * (1 - $discountPercentage);
     }
 
     private function getLongStayDiscountPercentage(int $nightsCount): float

templates/calculatedAmount.html.twig

@@ -13,6 +13,9 @@
         <li class="list-group-item">
           <strong>{{ 'nights_count'|trans }}</strong>: {{ nights_count }}
         </li>
+        <li class="list-group-item">
+          <strong>{{ 'guest_count'|trans }}</strong>: {{ guest_count }}
+        </li>
       </ul>
     </div>
     <div class="col-12 mt-3">

templates/index.html.twig

@@ -6,12 +6,15 @@
   {{ form_start(form) }}
 
   <div class="row">
-    <div class="col-12 col-md-6">
+    <div class="col-12 col-md-4">
       {{ form_row(form.arrivalDate) }}
     </div>
-    <div class="col-12 col-md-6">
+    <div class="col-12 col-md-4">
       {{ form_row(form.nightsCount) }}
     </div>
+    <div class="col-12 col-md-4">
+      {{ form_row(form.guestCount) }}
+    </div>
   </div>
 
   <div class="row">

tests/Functional/QuoteTest.php

@@ -24,6 +24,7 @@ public function it_calculates_quote_price()
         $form->setValues([
             'calculate_quote_price_form[arrivalDate]' => '17/11/2021',
             'calculate_quote_price_form[nightsCount]' => '2',
+            'calculate_quote_price_form[guestCount]' => '3',
         ]);
         $client->submit($form);
 

tests/Integration/Service/QuotePriceCalculatorTest.php

@@ -20,11 +20,12 @@ public function it_calculates_reservation_price()
 
         $arrivalDate = new \DateTime('2021-06-01'); // In the high season
         $nightsCount = 2;
+        $guestCount = 3;
 
         // Action
-        $price = $SUT->calculate($arrivalDate, $nightsCount);
+        $price = $SUT->calculate($arrivalDate, $nightsCount, $guestCount);
 
-        // Expectations: 80€ * 2 nights * 1 (no discount)
-        $this->assertEquals(80 * 2, $price);
+        // Expectations: 80€ * 2 nights * 3 guests * 1 (no discount)
+        $this->assertEquals(80 * 2 * 3, $price);
     }
 }

tests/Unit/Service/QuotePriceCalculatorTest.php

@@ -31,14 +31,15 @@ public function it_calculates_reservation_price()
 
         $arrivalDate = new \DateTime('2021-06-01'); // In the high season
         $nightsCount = 2;
+        $guestCount = 3;
 
         // Expectation: price per night will be got from a PriceList object
         $priceListFactory->method('create')->willReturn($priceList);
 
         // Action
-        $price = $SUT->calculate($arrivalDate, $nightsCount);
+        $price = $SUT->calculate($arrivalDate, $nightsCount, $guestCount);
 
-        // Expectations: 80€ * 2 nights * 1 (no discount)
-        $this->assertEquals(80 * 2, $price);
+        // Expectations: 80€ * 2 nights * 3 guests * 1 (no discount)
+        $this->assertEquals(80 * 2 * 3, $price);
     }
 }

translations/messages.en.yml

@@ -6,3 +6,4 @@ footer_message: Demo project @ 2021
 back: Back
 your_quote: Your quote
 total: Total
+guest_count: Guest count

translations/messages.it.yml

@@ -7,3 +7,4 @@ back: Indietro
 quote_amount: Importo del preventivo
 your_quote: Il tuo preventivo
 total: Totale
+guest_count: Numero di ospiti