public decimal GetAllowance(TaxCalculatorCommand model)
{
decimal allowance = 0;
//1
allowance += PersonlAllowance(model.ApplyWithSpouse);
//2
if (!model.ApplyWithSpouse)
{
allowance += SpouseAllowance(model.IsMarried, model.IsSpouseEligible);
}
//3
allowance += ChildAllowance(model.EligibleChildBefore2561, model.EligibleChildAfter2561, model.EligibleAdoptedChild);
//4
allowance += ParentalCareAllowance(model.IsMarried, model.OwnParent, model.SpouseParent);
//5
allowance += DisabledCareAllowance(model.HasNonFamilyDisable, model.InFamilyDisable);
//6, 7.1, 7.2
allowance += InsuranceAllowance(model.ParentalInsurance, model.LifeInsurance, model.HealthInsurance);
//8
allowance += ProvFundAllowance(model.ProvFund);
//9
allowance += SavingFundAllowance(model.SavingFund);
//11
allowance += LTFAllowance(model.LTF, model.TotalIncome);
//10
allowance += InvestmentPackageAllowance(model.RMF, model.GPF, model.ProvFund, model.SavingFund, model.TeacherFund, model.PensionInsurance, model.TotalIncome);
//13
allowance += RealEstateAllowance(model.RealEstatePrice, model.HouseYearBuy);
//19
allowance += model.MaternityAllowance;
//12, 14, 17, 18, 15, 20, 21
allowance += OtherExpense(model.HousingInterest, model.SocialSecurity, model.TravelExpense, model.StartupInvestment, model.CctvExpense, model.PoliticalParty, model.OtherExpense);
return(allowance);
}
[TestCase(30, 0, false, 300, 500000, 0, 1000, 450)] // LeaveCompensate + MaxProvFund at 15% of Income
public void Test_Engine_GetExemption(
int age, decimal gPF, bool isDisabled, decimal leaveCompensate, decimal provFund, decimal teacherFund, decimal totalIncome, decimal expectedResult)
{
TaxCalculatorCommand exemption = new TaxCalculatorCommand()
{
Age = age, GPF = gPF, IsDisabled = isDisabled, LeaveCompensate = leaveCompensate, ProvFund = provFund, TeacherFund = teacherFund, TotalIncome = totalIncome
};
var result = engine.GetExemption(exemption);
Assert.AreEqual(expectedResult, result);
}
/// <summary>
/// คำนวนภาษี
/// </summary>
/// <param name="inputCommand"></param>
/// <returns>ภาษีที่ต้องจ่ายแยกตามข้อ ก 1 - 12</returns>
public TaxResultModel TaxCalculator(TaxCalculatorCommand inputCommand)
{
TaxCalculatorCommand command = inputCommand;
TaxResultModel result = new TaxResultModel();
result.A1 = command.TotalIncome;
result.A2 = GetExemption(command);
result.A3 = result.A1 - result.A2;
result.A4 = GetPersonalExpenseExemption(command.TotalIncome);
result.A5 = result.A3 - result.A4;
result.A6 = GetAllowance(command);
result.A7 = result.A5 - result.A6;
result.A8 = EducationDonation(command.EducationDonation, result.A7);
result.A9 = result.A7 - result.A8;
result.A10 = OtherDonation(command.OtherDonation, result.A9);
result.A11 = result.A9 - result.A10;
result.A12 = StairCaseTax(result.A11);
return(result);
}
public decimal GetExemption(TaxCalculatorCommand exem)
{
TaxCalculatorCommand exemption = exem;
decimal exempt = 0;
exemption.TeacherFund = SetLimit(exemption.TeacherFund, 500000);
exempt += exemption.TeacherFund;
decimal provFund = 0;
if (exemption.ProvFund > 10000)
{
if (exemption.ProvFund > 500000)
{
provFund = 490000;
}
else
{
provFund = exemption.ProvFund - 10000;
}
provFund = SetLimit(provFund, exemption.TotalIncome * 0.15m);
exempt += provFund;
}
exemption.GPF = SetLimit(exemption.GPF, 500000);
exempt += exemption.GPF;
exempt = SetLimit(exempt, 500000);
if (exemption.IsDisabled || exemption.Age >= 65)
{
exempt += 190000m;
}
exemption.LeaveCompensate = SetLimit(exemption.LeaveCompensate, 300000);
exempt += exemption.LeaveCompensate;
return(exempt);
}
public TaxCalculatorViewModel()
{
Model = new TaxCalculatorCommand
{
TotalIncome = 5000000,
IsDisabled = false,
Age = 30,
TeacherFund = 100000,
ProvFund = 100000,
GPF = 100000,
LeaveCompensate = 0,
ApplyWithSpouse = false,
IsMarried = false,
IsSpouseEligible = false,
EligibleChildBefore2561 = 1,
EligibleAdoptedChild = 1,
EligibleChildAfter2561 = 1,
OwnParent = 2,
SpouseParent = 0,
HasNonFamilyDisable = false,
InFamilyDisable = 0,
ParentalInsurance = 15000,
LifeInsurance = 70000,
HealthInsurance = 15000,
SavingFund = 13200,
LTF = 400000,
RMF = 200000,
PensionInsurance = 20000,
PoliticalParty = 10000,
TravelExpense = 20000,
SocialSecurity = 9000,
HousingInterest = 100000,
StartupInvestment = 100000,
CctvExpense = 0,
OtherExpense = 9000,
EducationDonation = 0,
OtherDonation = 0
};
ResetValueCommand = new Command(GetTax);
}
static void Main(string[] args)
{
Console.WriteLine("This is uTax - Tax Calculator");
//TaxCalculatorCommand command = new TaxCalculatorCommand
//{
// TotalIncome = 5000000,
// IsDisabled = false,
// Age = 30,
// TeacherFund = 100000,
// ProvFund = 100000,
// GPF = 100000,
// LeaveCompensate = 0,
// ApplyWithSpouse = false,
// IsMarried = false,
// IsSpouseEligible = false,
// EligibleChildBefore2561 = 1,
// EligibleAdoptedChild = 1,
// EligibleChildAfter2561 = 1,
// OwnParent = 2,
// SpouseParent = 0,
// HasNonFamilyDisable = false,
// InFamilyDisable = 0,
// ParentalInsurance = 15000,
// LifeInsurance = 70000,
// HealthInsurance = 15000,
// SavingFund = 13200,
// LTF = 400000,
// RMF = 200000,
// PensionInsurance = 20000,
// PoliticalParty = 10000,
// TravelExpense = 20000,
// SocialSecurity = 9000,
// HousingInterest = 100000,
// StartupInvestment = 100000,
// CctvExpense = 0,
// OtherExpense = 9000,
// EducationDonation = 0,
// OtherDonation = 0
//};
//TaxCalculatorCommand command = new TaxCalculatorCommand
//{
// TotalIncome = 100000000,
// ProvFund = 600000,
// OwnParent = 2,
// InFamilyDisable = 1,
// LifeInsurance = 120000,
// HealthInsurance = 16000,
// LTF = 600000,
// RMF = 600000,
// TravelExpense = 60000,
// SocialSecurity = 9000,
// HousingInterest = 200000,
// StartupInvestment = 200000,
// OtherExpense = 40000,
// EducationDonation = 5000000,
// OtherDonation = 10000000,
// MaternityAllowance = 100000,
// RealEstatePrice = 4000000 // พังที่ Realestate ไม่ได้เช็ค เกิน 3000000
//};
TaxCalculatorCommand command = new TaxCalculatorCommand
{
TotalIncome = 100000000,
//IsDisabled = false,
//Age = 30,
//TeacherFund = 100000,
//ProvFund = 100000,
//GPF = 100000,
//LeaveCompensate = 0,
//ApplyWithSpouse = false,
//IsMarried = false,
//IsSpouseEligible = false,
//EligibleChildBefore2561 = 1,
//EligibleAdoptedChild = 1,
//EligibleChildAfter2561 = 1,
//OwnParent = 2,
//SpouseParent = 0,
//HasNonFamilyDisable = false,
//InFamilyDisable = 0,
//ParentalInsurance = 15000,
//LifeInsurance = 70000,
//HealthInsurance = 15000,
//SavingFund = 13200,
//LTF = 400000,
//RMF = 200000,
//PensionInsurance = 20000,
//PoliticalParty = 10000,
//TravelExpense = 20000,
//SocialSecurity = 9000,
//HousingInterest = 100000,
//StartupInvestment = 100000,
//CctvExpense = 0,
//OtherExpense = 9000,
//EducationDonation = 0,
//OtherDonation = 0
};
Console.WriteLine("สวัสดี");
Engine engine = new Engine();
var result = engine.TaxCalculator(command);
int i = 1;
Console.WriteLine($"A{i}: {result.A1:n}"); i++;
Console.WriteLine($"A{i}: {result.A2:n}"); i++;
Console.WriteLine($"A{i}: {result.A3:n}"); i++;
Console.WriteLine($"A{i}: {result.A4:n}"); i++;
Console.WriteLine($"A{i}: {result.A5:n}"); i++;
Console.WriteLine($"A{i}: {result.A6:n}"); i++;
Console.WriteLine($"A{i}: {result.A7:n}"); i++;
Console.WriteLine($"A{i}: {result.A8:n}"); i++;
Console.WriteLine($"A{i}: {result.A9:n}"); i++;
Console.WriteLine($"A{i}: {result.A10:n}"); i++;
Console.WriteLine($"A{i}: {result.A11:n}"); i++;
Console.WriteLine($"A{i}: {result.A12:n}"); i++;
}
public void Test_Engine_OverallTest(TaxCalculatorCommand model)
{
var result = engine.TaxCalculator(model);
Assert.AreEqual(model.ExpectedResult, result.A12);
}