//todo break this method into small methods
public bool GenerateBill(int tenantId, int pricePerUnit, int currentMeterReading)
{
using (var scope = new TransactionScope())
{
var meterReadingRepository = new TenantMeterReadingRepository();
int prevMonthMeterReading = meterReadingRepository.GetPreviousMonthMeterReading(tenantId);
//create object of meter reading class as per current meter reading
var tenantMeterReading = new TenantMeterReading
{
TenantId = tenantId,
MeterReading = currentMeterReading,
CreatedDate = DateTime.Now
};
//calculate amount payable for current month
int currentMonthUnitConsumed = tenantMeterReading.MeterReading - prevMonthMeterReading;
double amountPayable = currentMonthUnitConsumed*pricePerUnit;
// create object of bill payable class
var billPayable = new BillPayable
{
TenantId = tenantId,
PricePerUnit = pricePerUnit,
UnitConsumed = currentMonthUnitConsumed,
AmountPayable = amountPayable,
CreatedDate = DateTime.Now
};
//add amount payable class object
var billPayableRepository = new BillPayableRepository();
var billPaymentRepository = new BillPaymentRepository();
meterReadingRepository.Add(tenantMeterReading);
billPayableRepository.Add(billPayable);
var lastBillPaid = billPaymentRepository.GetLastBillPaid(tenantId); //todo need both last bill paid amount and date
var billInvoice = new BillInvoice
{
TenantId = tenantId,
CurrentMonthPayamentAmount = billPayable.AmountPayable,
LastBillPaid = (lastBillPaid == null) ? 0.00 : lastBillPaid.AmountPaid,
PendingAmount = 0,
LastBillPaidDate = DateTime.Now, //todo this will be changed
CreatedDate = DateTime.Now
};
var billInvoiceRepository = new BillInvoiceRepository();
billInvoiceRepository.Add(billInvoice);
scope.Complete();
}
return true;
}
private void ShowInvoiceDetails()
{
var billInvoiceRepository = new BillInvoiceRepository();
GridView1.DataSource = billInvoiceRepository.GetInvoiceDetails(GetSelectedTenantId());
GridView1.DataBind();
}