using Microsoft.VisualStudio.TestTools.UnitTesting;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Threading.Tasks;

namespace NetCoreStack.Lucene.Test

{

[TestClass]

public class LuceneTests

{

private void Tokenize(LuceneIndexDescriptor descriptor, IEnumerable<SampleModel> searchIndexItems, bool isLastBundle = false)

{

var tokenizedSearhIndexItems = new List<SampleModel>();

try

{

foreach (var item in searchIndexItems)

{

if (item.Text == null)

continue;

tokenizedSearhIndexItems.Add(item);

}

}

catch (Exception ex)

{

#if DEBUG

System.Diagnostics.Debug.WriteLine($"===Lucene Task Exception:{ex.Message}===LastIndexId:{descriptor.LastIndexId}");

#endif

}

if (tokenizedSearhIndexItems.Any())

{

SampleIndexWriter.AddItemsToIndex(tokenizedSearhIndexItems);

descriptor.Metadata = typeof(SampleModel).FullName;

descriptor.IndexedTime = DateTime.Now;

var lastIndex = tokenizedSearhIndexItems.Last();

if (tokenizedSearhIndexItems.Any())

{

descriptor.LastIndexId = lastIndex.Id;

}

if (isLastBundle)

{

SampleIndexWriter.SetSyncIndexFile(descriptor);

SampleIndexWriter.RunIndexMaintenance();

}

else

{

SampleIndexWriter.SetSyncIndexFile(descriptor);

}

}

}

private void LuceneConfig()

{

// Start Index Maintenance

SampleIndexWriter.RunIndexMaintenance();

var descriptor = SampleIndexWriter.GetSyncInfo();

IEnumerable<SampleModel> searchIndexItems;

if (descriptor == null)

{

descriptor = new LuceneIndexDescriptor();

searchIndexItems = new List<SampleModel>

{

new SampleModel { Id = 1, Text = "Lorem Ipsum has been the industry's standard dummy text ever since the 1500s", Date = DateTime.Now },

new SampleModel { Id = 2, Text = "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC", Date = DateTime.Now },

new SampleModel { Id = 3, Text = "The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested", Date = DateTime.Now },

new SampleModel { Id = 4, Text = "Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham", Date = DateTime.Now }

};

Tokenize(descriptor, searchIndexItems, true);

}

else

{

// Check db latest ID and sync with Where(x => x.Id > descriptor.LastIndexId);

}

}

[TestMethod]

public void RunIndex()

{

LuceneConfig();

var items = SampleIndexWriter.SearchAsync("Cicero", int.MaxValue).Result.ToList();

Assert.IsTrue(items.Count > 0);

}

}

}