private static void MergeRecord(int existingCode, FoundDevice newItem)
{
try
{
if (collection.TryRemove(existingCode, out FoundDevice removed))
{
if (collection.TryAdd(newItem.GenerateId(), newItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Added, newItem, null));
}
}
else
{
if (!collection.ContainsKey(newItem.GenerateId()) && collection.TryAdd(newItem.GenerateId(), newItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Added, newItem, null));
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
/// <summary>
/// Adds the specified device.
/// </summary>
/// <param name="device">The device.</param>
public static void Add(FoundDevice newItem)
{
try
{
if (collection.Count == 0)
{
if (collection.TryAdd(newItem.GenerateId(), newItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Added, newItem, null));
}
}
else
{
var existingItem = collection.Values.FirstOrDefault(x => x.IpAddress.Equals(newItem.IpAddress));
if (existingItem == null)
{
if (collection.TryAdd(newItem.GenerateId(), newItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Added, newItem, null));
}
}
else
{
bool isEqual = comparer.Compare(newItem, existingItem, out IEnumerable <Difference> differences);
if (isEqual)
{
if (collection.TryUpdate(newItem.GenerateId(), newItem, existingItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Replaced, newItem, null));
}
else
{
MergeRecord(existingItem.GenerateId(), newItem);
}
}
else
{
var deviceId = differences
.FirstOrDefault(x => x.MemberPath.Equals("DeviceId"));
if (deviceId == null)
{
if (collection.TryUpdate(existingItem.GenerateId(), newItem, existingItem))
{
Changed?.Invoke(newItem, new FoundDeviceChangedEventArgs(ChangeType.Replaced, newItem, null));
}
}
else
{
MergeRecord(existingItem.GenerateId(), newItem);
}
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public FoundDeviceChangedEventArgs(ChangeType change, FoundDevice item, FoundDevice replacement)
{
ChangeType = change;
ChangedItem = item;
ReplacedWith = replacement;
}