using Lucene.Net.Documents;
using NUnit.Framework;
using Assert = Lucene.Net.TestFramework.Assert;

namespace Lucene.Net.Index
{
    /*
     * Licensed to the Apache Software Foundation (ASF) under one or more
     * contributor license agreements.  See the NOTICE file distributed with
     * this work for additional information regarding copyright ownership.
     * The ASF licenses this file to You under the Apache License, Version 2.0
     * (the "License"); you may not use this file except in compliance with
     * the License.  You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

    using BytesRef = Lucene.Net.Util.BytesRef;
    using Directory = Lucene.Net.Store.Directory;
    using Document = Documents.Document;
    using Field = Field;
    using FieldType = FieldType;
    using IndexSearcher = Lucene.Net.Search.IndexSearcher;
    using LuceneTestCase = Lucene.Net.Util.LuceneTestCase;
    using TermQuery = Lucene.Net.Search.TermQuery;
    using TextField = TextField;
    using TopDocs = Lucene.Net.Search.TopDocs;

    /// <summary>
    /// Test indexing and searching some byte[] terms
    /// </summary>
    [SuppressCodecs("Lucene3x")]
    [TestFixture]
    public class TestBinaryTerms : LuceneTestCase
    {
        [Test]
        public virtual void TestBinary()
        {
            Directory dir = NewDirectory();
            RandomIndexWriter iw = new RandomIndexWriter(
#if FEATURE_INSTANCE_TESTDATA_INITIALIZATION
                this,
#endif
                Random, dir);
            BytesRef bytes = new BytesRef(2);
            BinaryTokenStream tokenStream = new BinaryTokenStream(bytes);

            for (int i = 0; i < 256; i++)
            {
                bytes.Bytes[0] = (byte)i;
                bytes.Bytes[1] = unchecked((byte)(255 - i));
                bytes.Length = 2;
                Document doc = new Document();
                FieldType customType = new FieldType();
                customType.IsStored = true;
                doc.Add(new Field("id", "" + i, customType));
                doc.Add(new TextField("bytes", tokenStream));
                iw.AddDocument(doc);
            }

            IndexReader ir = iw.GetReader();
            iw.Dispose();

            IndexSearcher @is = NewSearcher(ir);

            for (int i = 0; i < 256; i++)
            {
                bytes.Bytes[0] = (byte)i;
                bytes.Bytes[1] = unchecked((byte)(255 - i));
                bytes.Length = 2;
                TopDocs docs = @is.Search(new TermQuery(new Term("bytes", bytes)), 5);
                Assert.AreEqual(1, docs.TotalHits);
                Assert.AreEqual("" + i, @is.Doc(docs.ScoreDocs[0].Doc).Get("id"));
            }

            ir.Dispose();
            dir.Dispose();
        }

        [Test]
        public virtual void TestToString()
        {
            Term term = new Term("foo", new BytesRef(new[] { unchecked((byte)0xff), unchecked((byte)0xfe) }));
            Assert.AreEqual("foo:[ff fe]", term.ToString());
        }
    }
}