double calc(int[] arr1, int [] arr2)
{
////var arr1 = i1.ToString().ToCharArray().Select(it => (int)it).ToList();
////var arr2 = i2.ToString().ToCharArray().Select(it => (int)it).ToList();
//var sections = Diff.CalculateSections<int>(arr1, arr2);
//var matches = sections.Where(s => s.IsMatch);
//var unmatches = sections.Where(s => !s.IsMatch);
//var a = (double)matches.Select(s => s.LengthInCollection1).Sum() * matches.Count();
//var b = (double)unmatches.Select(s => s.LengthInCollection1).Sum() * unmatches.Count();
//// Console.WriteLine(a);
//// Console.WriteLine(b);
//// Console.WriteLine(b/a);
//return b / a;
//var arr1 = i1.ToString().ToCharArray().Select(it => (int)it).ToList();
//var arr2 = i2.ToString().ToCharArray().Select(it => (int)it).ToList();
var sections = Diff.Calculate <int>(arr1, arr2);
var matches = sections.Where(s => s.Equal);
var unmatches = sections.Where(s => !s.Equal);
var a = (double)matches.Select(s => s.Length1).Sum() * matches.Count();
var b = (double)unmatches.Select(s => s.Length2).Sum() * unmatches.Count();
//System.Console.WriteLine(a);
//System.Console.WriteLine(b);
//System.Console.WriteLine(b / a);
return(b / a);
}
private async Task UpdateItemsAsync(IEnumerable <TimeEntryMessage> msgs)
{
// 1. Get only TimeEntryHolders from current collection
_currentHolders = _currentHolders ?? Items;
var timeHolders = grouper.Ungroup(_currentHolders.OfType <T> ()).ToList();
// 2. Remove, replace or add items from messages
foreach (var msg in msgs)
{
UpdateTimeHolders(timeHolders, msg.Data, msg.Action);
}
// 3. Create the new item collection from holders (sort and add headers...)
var newItemCollection = await CreateItemCollectionAsync(timeHolders, loadTimeEntryInfo);
// 4. Check diffs, modify ItemCollection and notify changes
var diffs = Diff.Calculate(_currentHolders, newItemCollection);
_currentHolders = newItemCollection;
// 5. Swap remove events to delete normal items before headers.
// iOS requierement.
diffs = Diff.SortRemoveEvents <IHolder, DateHolder> (diffs);
// CollectionChanged events must be fired on UI thread
ServiceContainer.Resolve <IPlatformUtils>().DispatchOnUIThread(() => {
foreach (var diff in diffs)
{
switch (diff.Type)
{
case DiffType.Add:
Insert(diff.NewIndex, diff.NewItem);
break;
case DiffType.Remove:
RemoveAt(diff.NewIndex);
break;
case DiffType.Replace:
this[diff.NewIndex] = diff.NewItem;
break;
case DiffType.Move:
Move(diff.OldIndex, diff.NewIndex, diff.NewItem);
break;
}
}
});
}
