/// <summary>
/// Fetches the transfers from the server and adds the helicopters to the map
/// </summary>
public async Task StartTransfers()
{
TransplantListAPI transplantListAPI = new TransplantListAPI();
List <OrganTransfer> transfers = await transplantListAPI.GetAllTransfers();
foreach (OrganTransfer transfer in transfers)
{
int waitingListId = await transplantListAPI.GetWaitingListId((int)transfer.receiverId, transfer.organType);
if (transfer.arrivalTime.ToDateTimeWithSeconds() < DateTime.Now)
{
await HelicopterFinished(waitingListId, transfer.id);
}
else
{
AddHelicopter(
GetCurrentPoint(transfer),
new Position(transfer.endLat, transfer.endLon),
transfer.organType,
(int)transfer.arrivalTime.ToDateTimeWithSeconds().Subtract(DateTime.Now).TotalSeconds,
transfer.receiverId,
waitingListId,
transfer.id);
}
}
}
/*
* Retrieves all organs for the user
*/
private async Task <List <DonatableOrgan> > GetOrgans()
{
TransplantListAPI transplantListAPI = new TransplantListAPI();
List <DonatableOrgan> donatableOrgans = await transplantListAPI.GetSingleUsersDonatableOrgans(UserController.Instance.LoggedInUser.id);
return(donatableOrgans);
}
/*
* Called when a transfer is complete.
* The transfer and waiting list item are removed from the database.
*/
private async Task HelicopterFinished(int waitingListItemId, int organId)
{
TransplantListAPI transplantListAPI = new TransplantListAPI();
await transplantListAPI.DeleteTransfer(organId);
await transplantListAPI.DeleteWaitingListItem(waitingListItemId);
await transplantListAPI.SetInTransfer(organId, 2);
}
/*
* Starts a new transfer to the hospital closest to the given selectedRecipient but does not add a helicopter to the map
*/
public async Task NewTransferWithoutAddingHelicpoter(DonatableOrgan currentOrgan, User selectedRecipient, Position donorPosition)
{
await InitialiseHospitalsWithoutAddingToMap();
OrganTransfer newOrganTransfer = new OrganTransfer();
newOrganTransfer.id = currentOrgan.id;
newOrganTransfer.receiverId = selectedRecipient.id;
//Find the position of the donor
newOrganTransfer.startLat = donorPosition.Latitude;
newOrganTransfer.startLon = donorPosition.Longitude;
Hospital receiverHospital = null;
//await InitialiseHospitalsWithoutAddingToMap();
foreach (Hospital hospital in hospitals)
{
if (hospital.region.Equals(selectedRecipient.region))
{
receiverHospital = hospital;
}
}
//Find the nearest hospital
newOrganTransfer.endLat = receiverHospital.latitude;
newOrganTransfer.endLon = receiverHospital.longitude;
newOrganTransfer.organType = OrganExtensions.ToOrgan(currentOrgan.organType);
Position HospitalPosition = new Position(receiverHospital.latitude, receiverHospital.longitude);
newOrganTransfer.arrivalTime = new CustomDateTime(DateTime.Now.AddSeconds(distance(donorPosition.Latitude, HospitalPosition.Latitude,
donorPosition.Longitude, HospitalPosition.Longitude, 0, 0) / 70));
TransplantListAPI transplantListAPI = new TransplantListAPI();
await transplantListAPI.InsertTransfer(newOrganTransfer);
await transplantListAPI.SetInTransfer(currentOrgan.id, 1);
}
/*
* Starts a transfer to the hospital closest to the given selectedRecipient and adds the helicopter to the map
*/
public async Task NewTransfer(DonatableOrgan currentOrgan, User selectedRecipient, Position donorPosition)
{
OrganTransfer newOrganTransfer = new OrganTransfer();
newOrganTransfer.id = currentOrgan.id;
newOrganTransfer.receiverId = selectedRecipient.id;
//Find the position of the donor
newOrganTransfer.startLat = donorPosition.Latitude;
newOrganTransfer.startLon = donorPosition.Longitude;
Hospital receiverHospital = null;
//await InitialiseHospitalsWithoutAddingToMap();
foreach (Hospital hospital in hospitals)
{
if (hospital.region.Equals(selectedRecipient.region))
{
receiverHospital = hospital;
}
}
//Find the nearest hospital
newOrganTransfer.endLat = receiverHospital.latitude;
newOrganTransfer.endLon = receiverHospital.longitude;
newOrganTransfer.organType = OrganExtensions.ToOrgan(currentOrgan.organType);
Position HospitalPosition = new Position(receiverHospital.latitude, receiverHospital.longitude);
newOrganTransfer.arrivalTime = new CustomDateTime(DateTime.Now.AddSeconds(distance(donorPosition.Latitude, HospitalPosition.Latitude,
donorPosition.Longitude, HospitalPosition.Longitude, 0, 0) / 70));
TransplantListAPI transplantListAPI = new TransplantListAPI();
if (await transplantListAPI.InsertTransfer(newOrganTransfer) != HttpStatusCode.OK)
{
await DisplayAlert("", "Failed to start transfer (failed to insert transfer)", "OK");
return;
}
if (await transplantListAPI.SetInTransfer(currentOrgan.id, 1) != true)
{
await DisplayAlert("", "Failed to start transfer (failed to set in transfer)", "OK");
return;
}
int TTA = (int)newOrganTransfer.arrivalTime.ToDateTimeWithSeconds().Subtract(DateTime.Now).TotalSeconds;
//int waitingListId = await transplantListAPI.GetWaitingListId((int)newOrganTransfer.receiverId, newOrganTransfer.organType);
//if (waitingListId == 0) {
// await DisplayAlert("", "Failed to start transfer (failed to get waiting list id)", "OK");
// return;
//}
int waitingListId = 0;
foreach (WaitingListItem item in selectedRecipient.waitingListItems)
{
if (item.organType == OrganExtensions.ToOrgan(currentOrgan.organType))
{
waitingListId = item.id;
}
}
AddHelicopter(donorPosition,
HospitalPosition,
newOrganTransfer.organType,
TTA,
newOrganTransfer.receiverId,
waitingListId,
newOrganTransfer.id
);
}
