public string Get(int id)
{
using (var comparerRepository = new ComparerRepository())
{
var comparer = comparerRepository.Find(id);
if (comparer is null)
{
throw new ArgumentNullException("Comparer not found");
}
if (comparer.Left.Equals(comparer.Right))
{
return("Contents are the same.");
}
if (!comparer.Left.Length.Equals(comparer.Right.Length))
{
return("Contents are not of the same size.");
}
string jsonLeft = Encoding.UTF8.GetString(Convert.FromBase64String(comparer.Left));
string jsonRight = Encoding.UTF8.GetString(Convert.FromBase64String(comparer.Right));
int length = 0;
int?offset = null;
List <DiffEntry> diffEntries = new List <DiffEntry>();
for (int i = 0; i < jsonLeft.Length; i++)
{
if (jsonLeft[i] != jsonRight[i])
{
if (length == 0)
{
offset = i;
}
length++;
}
else if (length > 0)
{
diffEntries.Add(new DiffEntry((int)offset, length));
length = 0;
offset = 0;
}
}
return(Newtonsoft.Json.JsonConvert.SerializeObject(diffEntries));
}
}
public string SetContent(int id, string content, Side side = Side.Left)
{
if (string.IsNullOrWhiteSpace(content))
{
throw new ArgumentException("null content");
}
if (!IsBase64String(content))
{
throw new ArgumentException("invalid content");
}
using (var comparerRepository = new ComparerRepository())
{
var comparer = comparerRepository.Find(id);
if (comparer is null)
{
comparer = new Comparer()
{
Id = id
};
comparerRepository.Add(comparer);
}
if (side == Side.Left)
{
comparer.Left = content;
}
else
{
comparer.Right = content;
}
comparerRepository.Update(comparer);
return($"{side}-side Content was set");
}
}