Use decimal type for money representation

Author: nemanjarogic

src/StructuralPatterns/Facade/FacadeLibrary/MortgageExample/Facade/Mortgage.cs

@@ -18,9 +18,9 @@ public Mortgage()
             _customerService = new CustomerService();
         }
 
-        public bool IsEligible(string customerName, int loanAmount)
+        public bool IsEligible(string customerName, decimal loanAmount)
         {
-            Console.WriteLine($"Customer {customerName} applies for {loanAmount:C} loan.\n");
+            Console.WriteLine($"Customer {customerName} wants to apply for {loanAmount:C} loan.\n");
 
             var customer = _customerService.Find(customerName);
 

src/StructuralPatterns/Facade/FacadeLibrary/MortgageExample/MortgageExecutor.cs

@@ -13,7 +13,7 @@ public static void Execute()
             var mortgage = new Mortgage();
             var customerName = "Mario Balotelli";
 
-            // Evaluate mortgage eligibility for customer
+            // Evaluate mortgage eligibility for the customer.
             bool isEligible = mortgage.IsEligible(customerName, 125000);
 
             var status = isEligible ? "approved" : "rejected";

src/StructuralPatterns/Facade/FacadeLibrary/MortgageExample/Subsystem/CustomerService.cs

@@ -4,9 +4,9 @@ public class CustomerService
     {
         public Customer Find(string name)
         {
-            // Naive implementation
-            // In real life scenario we need to have customer registry
-            // There may be multiple customers with the same name
+            // Naive implementation.
+            // In real life scenario we would need some customer registry.
+            // There may be multiple customers with the same name.
             return new Customer { Name = name };
         }
     }