package org.apache.solr.search.function;
/*
 * 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.
 */

import org.apache.solr.util.AbstractSolrTestCase;
import org.junit.BeforeClass;


/**
 *
 *
 **/
public class SortByFunctionTest extends AbstractSolrTestCase {

  
  @BeforeClass
  public static void beforeClass() throws Exception {
    initCore("solrconfig.xml", "schema.xml");
  }

  
  @Override
  public void setUp() throws Exception {
    super.setUp();
  
  }

  public void test() throws Exception {
    assertU(adoc("id", "1", "x_td1", "0", "y_td1", "2", "w_td1", "25", "z_td1", "5", "f_t", "ipod"));
    assertU(adoc("id", "2", "x_td1", "2", "y_td1", "2", "w_td1", "15", "z_td1", "5", "f_t", "ipod ipod ipod ipod ipod"));
    assertU(adoc("id", "3", "x_td1", "3", "y_td1", "2", "w_td1", "55", "z_td1", "5", "f_t", "ipod ipod ipod ipod ipod ipod ipod ipod ipod"));
    assertU(adoc("id", "4", "x_td1", "4", "y_td1", "2", "w_td1", "45", "z_td1", "5", "f_t", "ipod ipod ipod ipod ipod ipod ipod"));
    assertU(commit());

    assertQ(req("fl", "*,score", "q", "*:*"),
            "//*[@numFound='4']",
            "//float[@name='score']='1.0'",
            "//result/doc[1]/int[@name='id'][.='1']",
            "//result/doc[2]/int[@name='id'][.='2']",
            "//result/doc[3]/int[@name='id'][.='3']",
            "//result/doc[4]/int[@name='id'][.='4']"
    );
    assertQ(req("fl", "*,score", "q", "*:*", "sort", "score desc"),
            "//*[@numFound='4']",
            "//float[@name='score']='1.0'",
            "//result/doc[1]/int[@name='id'][.='1']",
            "//result/doc[2]/int[@name='id'][.='2']",
            "//result/doc[3]/int[@name='id'][.='3']",
            "//result/doc[4]/int[@name='id'][.='4']"
    );
    assertQ(req("fl", "id,score", "q", "f_t:ipod", "sort", "score desc"),
            "//*[@numFound='4']",
            "//result/doc[1]/int[@name='id'][.='1']",
            "//result/doc[2]/int[@name='id'][.='4']",
            "//result/doc[3]/int[@name='id'][.='2']",
            "//result/doc[4]/int[@name='id'][.='3']"
    );


    assertQ(req("fl", "*,score", "q", "*:*", "sort", "sum(x_td1, y_td1) desc"),
            "//*[@numFound='4']",
            "//float[@name='score']='1.0'",
            "//result/doc[1]/int[@name='id'][.='4']",
            "//result/doc[2]/int[@name='id'][.='3']",
            "//result/doc[3]/int[@name='id'][.='2']",
            "//result/doc[4]/int[@name='id'][.='1']"
    );
    assertQ(req("fl", "*,score", "q", "*:*", "sort", "sum(x_td1, y_td1) asc"),
            "//*[@numFound='4']",
            "//float[@name='score']='1.0'",
            "//result/doc[1]/int[@name='id'][.='1']",
            "//result/doc[2]/int[@name='id'][.='2']",
            "//result/doc[3]/int[@name='id'][.='3']",
            "//result/doc[4]/int[@name='id'][.='4']"
    );
    //the function is equal, w_td1 separates
    assertQ(req("q", "*:*", "fl", "id", "sort", "sum(z_td1, y_td1) asc, w_td1 asc"),
            "//*[@numFound='4']",
            "//result/doc[1]/int[@name='id'][.='2']",
            "//result/doc[2]/int[@name='id'][.='1']",
            "//result/doc[3]/int[@name='id'][.='4']",
            "//result/doc[4]/int[@name='id'][.='3']"
    );
  }
  
  public void testSortJoinDocFreq() throws Exception
  {
    assertU(adoc("id", "4", "id_s", "D", "links_mfacet", "A", "links_mfacet", "B", "links_mfacet", "C" ) );
    assertU(adoc("id", "3", "id_s", "C", "links_mfacet", "A", "links_mfacet", "B" ) );
    assertU(commit()); // Make sure it uses two readers
    assertU(adoc("id", "2", "id_s", "B", "links_mfacet", "A" ) );
    assertU(adoc("id", "1", "id_s", "A"  ) );
    assertU(commit());

    assertQ(req("q", "links_mfacet:B", "fl", "id", "sort", "id asc"),
            "//*[@numFound='2']",
            "//result/doc[1]/int[@name='id'][.='3']",
            "//result/doc[2]/int[@name='id'][.='4']"
    );
    
    assertQ(req("q", "*:*", "fl", "id", "sort", "joindf(id_s, links_mfacet) desc"),
            "//*[@numFound='4']",
            "//result/doc[1]/int[@name='id'][.='1']",
            "//result/doc[2]/int[@name='id'][.='2']",
            "//result/doc[3]/int[@name='id'][.='3']",
            "//result/doc[4]/int[@name='id'][.='4']"
    );

    assertQ(req("q", "*:*", "fl", "id", "sort", "joindf(id_s, links_mfacet) asc"),
            "//*[@numFound='4']",
            "//result/doc[1]/int[@name='id'][.='4']",
            "//result/doc[2]/int[@name='id'][.='3']",
            "//result/doc[3]/int[@name='id'][.='2']",
            "//result/doc[4]/int[@name='id'][.='1']"
    );
  }
}