public static void EnsureCanChangeStatus(this Claim claim, Claim.Status targetStatus)
{
if (!claim.ClaimStatus.CanChangeTo(targetStatus))
{
throw new ClaimWrongStatusException(claim);
}
}
public static bool CanChangeTo(this Claim.Status fromStatus, Claim.Status targetStatus)
{
switch (targetStatus)
{
case Claim.Status.Approved:
return(new[] { Claim.Status.AddedByUser, Claim.Status.Discussed }.Contains(fromStatus));
case Claim.Status.OnHold:
return
(new[] { Claim.Status.AddedByUser, Claim.Status.Discussed, Claim.Status.AddedByMaster }.Contains(fromStatus));
}
throw new ArgumentException("Not implemented for target status", nameof(targetStatus));
}
public static bool CanChangeTo(this Claim.Status fromStatus, Claim.Status targetStatus)
{
switch (targetStatus)
{
case Claim.Status.Approved:
return(new[] { Claim.Status.AddedByUser, Claim.Status.Discussed, Claim.Status.CheckedIn }.Contains(fromStatus));
case Claim.Status.OnHold:
return
(new[] { Claim.Status.AddedByUser, Claim.Status.Discussed, Claim.Status.AddedByMaster }
.Contains(fromStatus));
case Claim.Status.AddedByUser:
return(new[]
{ Claim.Status.DeclinedByUser, Claim.Status.DeclinedByMaster, Claim.Status.OnHold }
.Contains(fromStatus));
case Claim.Status.AddedByMaster:
return(false);
case Claim.Status.DeclinedByUser:
case Claim.Status.DeclinedByMaster:
return
(new[]
{
Claim.Status.AddedByUser, Claim.Status.Discussed, Claim.Status.AddedByMaster,
Claim.Status.Approved, Claim.Status.OnHold,
}.Contains(fromStatus));
case Claim.Status.Discussed:
return
(new[] { Claim.Status.AddedByUser, Claim.Status.Discussed, Claim.Status.AddedByMaster }
.Contains(fromStatus));
case Claim.Status.CheckedIn:
return(fromStatus == Claim.Status.Approved);
default:
throw new ArgumentOutOfRangeException(nameof(targetStatus), targetStatus, null);
}
}
public static void ChangeStatusWithCheck(this Claim claim, Claim.Status targetStatus)
{
claim.EnsureCanChangeStatus(targetStatus);
claim.ClaimStatus = targetStatus;
}
public static bool IsActive(this Claim.Status claimStatus) => claimStatus != Claim.Status.DeclinedByMaster && claimStatus != Claim.Status.DeclinedByUser && claimStatus != Claim.Status.OnHold;
