Initial

2023-11-27 06:56:03 +02:00
commit 343564fcc0
236 changed files with 101156 additions and 0 deletions
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+namespace TaxCalculator.Api.Services
+{
+    using Domain;
+    using TaxCalculator.Models;
+
+    public class SalaryService : ISalaryService
+    {
+        private readonly ITaxCalculatorService _taxCalculator;
+
+        public SalaryService(ITaxCalculatorService taxCalculator)
+        {
+            _taxCalculator = taxCalculator ?? throw new ArgumentNullException(nameof(taxCalculator));
+        }
+
+        public async Task<SalaryDetails> CalculateSalaryDetails(int grossAnnualSalary)
+        {
+            if (grossAnnualSalary < 0)
+            {
+                throw new ArgumentException("Gross annual salary must be non-negative.");
+            }
+
+            // Calculate tax once
+            decimal annualTax = await _taxCalculator.CalculateTax(grossAnnualSalary);
+
+            decimal netAnnualSalary = grossAnnualSalary - annualTax;
+            decimal grossMonthlySalary = (decimal)grossAnnualSalary / 12;
+            decimal netMonthlySalary = netAnnualSalary / 12;
+            decimal monthlyTaxPaid = annualTax / 12;
+
+            return new SalaryDetails
+            {
+                GrossAnnualSalary = grossAnnualSalary,
+                GrossMonthlySalary = Math.Round(grossMonthlySalary, 2),
+                NetAnnualSalary = netAnnualSalary,
+                NetMonthlySalary = Math.Round(netMonthlySalary, 2),
+                AnnualTaxPaid = annualTax,
+                MonthlyTaxPaid = Math.Round(monthlyTaxPaid, 2)
+            };
+        }
+    }
+}