public static SyncResult GetSyncResult(ToDo local, ToDo remote) {
if (remote == null) {
return SyncResult.InsertRemote;
}
if (local == null) {
return SyncResult.InsertLocal;
}
if (local.Id != remote.Id) {
throw new InvalidOperationException("Ids must be the same");
}
if (local.Version == remote.Version) {
if (local.Changes) {
return SyncResult.UpdateRemote;
}
return SyncResult.Nothing;
}
if (local.Version < remote.Version) {
if (local.Changes) {
return SyncResult.Conflict;
}
return SyncResult.UpdateLocal;
}
throw new InvalidOperationException("Version numbers are corrupted");
}
public bool Equals(ToDo other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return other.Id.Equals(Id);
}