public async Task <IActionResult> UseServiceA([FromBody] UseServiceModel useServiceRequest)
{
try
{
await _contractService.AddUseServiceEvent(useServiceRequest);
return(Ok());
}
catch (DataException e)
{
return(NotFound(e.Message));
}
}
public async Task AddUseServiceEvent(UseServiceModel useServiceRequest)
{
useServiceRequest.StartDate = DateInDays(useServiceRequest.StartDate);
useServiceRequest.EndDate = DateInDays(useServiceRequest.EndDate);
var customer = await _context.Customers.FindAsync(useServiceRequest.CustomerId);
var service = await _context.Services.FindAsync(useServiceRequest.ServiceId);
var contracts = await _context.Contracts.Where(c => c.Service == service && c.Customer == customer).OrderBy(c => c.StartDate).ToListAsync();
//var currentContracts = new List<Contract>();
var usageCovered = false;
foreach (Contract contract in contracts)
{
if (contract.EndDate >= useServiceRequest.EndDate &&
contract.StartDate <= useServiceRequest.StartDate)
{
// Case 1 CSSC
// We have a contract that covers the whole service usage
await AddServiceUse(customer, contract, useServiceRequest.StartDate, useServiceRequest.EndDate);
usageCovered = true;
break;
}
if (contract.StartDate <= useServiceRequest.StartDate &&
contract.EndDate >= useServiceRequest.StartDate &&
contract.EndDate <= useServiceRequest.EndDate)
{
// Case 2 CSCS
await AddServiceUse(customer, contract, useServiceRequest.StartDate, contract.EndDate);
useServiceRequest.StartDate = contract.EndDate;
continue;
}
if (contract.EndDate <= useServiceRequest.EndDate &&
contract.StartDate > useServiceRequest.StartDate)
{
// Case 3 SCCS
var newContract = await AddDefaultContract(customer, service, useServiceRequest.StartDate, contract.StartDate);
// add first contract
await AddServiceUse(customer, newContract, newContract.StartDate, newContract.EndDate);
// use current contract
await AddServiceUse(customer, contract, contract.StartDate, contract.EndDate);
useServiceRequest.StartDate = contract.EndDate;
continue;
}
if (contract.EndDate >= useServiceRequest.EndDate &&
contract.StartDate > useServiceRequest.StartDate &&
contract.StartDate < useServiceRequest.EndDate)
{
// Case 4 SCSC
var newContract = await AddDefaultContract(customer, service, useServiceRequest.StartDate, contract.StartDate);
// add new contract
await AddServiceUse(customer, newContract, useServiceRequest.StartDate, newContract.EndDate);
// use current contract
await AddServiceUse(customer, contract, contract.StartDate, useServiceRequest.EndDate);
usageCovered = true;
break;
}
else if (contract.StartDate >= useServiceRequest.EndDate)
{
// Case 5 SSCC
Contract newContract = await AddDefaultContract(customer, service, useServiceRequest.StartDate, useServiceRequest.EndDate);
await AddServiceUse(customer, newContract, useServiceRequest.StartDate, newContract.EndDate);
usageCovered = true;
break;
}
}
if (!usageCovered)
{
// Case 6 CCSS
var newContract = await AddDefaultContract(customer, service, useServiceRequest.StartDate, useServiceRequest.EndDate);
await _context.Contracts.AddAsync(newContract);
await AddServiceUse(customer, newContract, newContract.StartDate, newContract.EndDate);
}
await _context.SaveChangesAsync();
}
