public void Process(PatchContext context, PatchOperation operation)
{
var current = context.Source;
var message = EditableJsonElementHelpers.FindParentOfTarget(ref current, operation.Path);
if (message != null)
{
context.Message = message;
return;
}
var from = context.Source;
message = EditableJsonElementHelpers.FindTarget(ref from, operation.From);
if (message != null)
{
context.Message = message;
return;
}
if (operation.Path.Segments.Length == 0)
{
context.Source = from;
return;
}
var last = operation.Path.Segments.Last();
if (current.Object != null)
{
current.Object[last.Value] = from;
return;
}
if (current.Array != null)
{
if (last.Value == "-")
{
current.Array.Add(from);
return;
}
if (!int.TryParse(last.Value, out var index) || 0 > index || index > current.Array.Count)
{
context.Message = $"Path `{operation.Path}` is not present in the instance.";
return;
}
if ((index != 0 && last.Value[0] == '0') ||
(index == 0 && last.Value.Length > 1))
{
context.Message = $"Path `{operation.Path}` is not present in the instance.";
return;
}
current.Array.Insert(index, from);
return;
}
context.Message = $"Path `{operation.Path}` is not present in the instance.";
}
public void Process(PatchContext context, PatchOperation operation)
{
if (operation.Path.Segments.Length == 0)
{
context.Message = "Cannot remove root value.";
return;
}
var current = context.Source;
var message = EditableJsonElementHelpers.FindParentOfTarget(ref current, operation.Path);
if (message != null)
{
context.Message = message;
return;
}
var last = operation.Path.Segments.Last();
if (current.Object != null)
{
if (!current.Object.TryGetValue(last.Value, out _))
{
context.Message = $"Path `{operation.Path}` is not present in the instance.";
return;
}
current.Object.Remove(last.Value);
return;
}
if (current.Array != null)
{
if (last.Value == "-")
{
current.Array.RemoveAt(current.Array.Count - 1);
return;
}
if (!int.TryParse(last.Value, out var index) || 0 > index || index >= current.Array.Count)
{
context.Message = $"Path `{operation.Path}` is not present in the instance.";
return;
}
if ((index != 0 && last.Value[0] == '0') ||
(index == 0 && last.Value.Length > 1))
{
context.Message = $"Path `{operation.Path}` is not present in the instance.";
return;
}
current.Array.RemoveAt(index);
return;
}
context.Message = $"Path `{operation.Path}` is not present in the instance.";
}