////////////////////////////////////////////////////////////////////////////////
/// @brief tests for query language, simple non-collection-based queries
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
///
/// Licensed 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.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Jan Steemann
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

var jsunity = require("jsunity");

////////////////////////////////////////////////////////////////////////////////
/// @brief test suite
////////////////////////////////////////////////////////////////////////////////

function ahuacatlQueryNonCollectionTestSuite () {

  ////////////////////////////////////////////////////////////////////////////////
/// @brief execute a given query
////////////////////////////////////////////////////////////////////////////////

  function executeQuery (query) {
    var cursor = AHUACATL_RUN(query, undefined);
    if (cursor instanceof AvocadoError) {
      print(query, cursor.errorMessage);
    }
    assertFalse(cursor instanceof AvocadoError);
    return cursor;
  }

////////////////////////////////////////////////////////////////////////////////
/// @brief execute a given query and return the results as an array
////////////////////////////////////////////////////////////////////////////////

  function getQueryResults (query, isFlat) {
    var result = executeQuery(query).getRows();
    var results = [ ];

    for (var i in result) {
      if (!result.hasOwnProperty(i)) {
        continue;
      }

      var row = result[i];
      if (isFlat) {
        results.push(row);
      } 
      else {
        var keys = [ ];
        for (var k in row) {
          if (row.hasOwnProperty(k) && k != '_id' && k != '_rev') {
            keys.push(k);
          }
        }
       
        keys.sort();
        var resultRow = { };
        for (var k in keys) {
          if (keys.hasOwnProperty(k)) {
            resultRow[keys[k]] = row[keys[k]];
          }
        }
        results.push(resultRow);
      }
    }

    return results;
  }


  return {

////////////////////////////////////////////////////////////////////////////////
/// @brief set up
////////////////////////////////////////////////////////////////////////////////

    setUp : function () {
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief tear down
////////////////////////////////////////////////////////////////////////////////

    tearDown : function () {
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return a single value from a list
////////////////////////////////////////////////////////////////////////////////

    testListValueQuery : function () {
      var expected = [ 2010, 2011, 2012 ];

      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012 ] return year", true);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return two values from a list
////////////////////////////////////////////////////////////////////////////////

    testListDocumentQuery : function () {
      var expected = [ { "days" : 365, "year" : 2010 }, { "days" : 365, "year" : 2011 }, { "days" : 366, "year" : 2012 } ];

      var actual = getQueryResults("FOR year IN [ { \"year\" : 2010, \"days\" : 365 } , { \"year\" : 2011, \"days\" : 365 }, { \"year\" : 2012, \"days\" : 366 } ] return year", false);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return a single value from a sorted list
////////////////////////////////////////////////////////////////////////////////
    
    testListValueQuerySort : function () {
      var expected = [ 2015, 2014, 2013, 2012, 2011, 2010 ];

      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012, 2013, 2014, 2015 ] SORT year DESC return year", true);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return a single value from a sorted limited list
////////////////////////////////////////////////////////////////////////////////

    testListValueQuerySortLimit : function () {
      var expected = [ 2013, 2012, 2011 ];

      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012, 2013, 2014, 2015 ] SORT year DESC LIMIT 2,3 return year", true);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return a calculated from a list
////////////////////////////////////////////////////////////////////////////////

    testListCalculated : function () {
      var expected = [ { "anno" : 2010, "isLeapYear" : false }, { "anno" : 2011, "isLeapYear" : false }, { "anno" : 2012, "isLeapYear" : true }, { "anno" : 2013, "isLeapYear" : false }, { "anno" : 2014, "isLeapYear" : false } ];
      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012, 2013, 2014 ] return { \"anno\" : year, \"isLeapYear\" : (year%4==0 && year%100!=0 || year%400==1) }", false);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return values from nested for loops
////////////////////////////////////////////////////////////////////////////////

    testNestedFor1 : function () {
      var expected = [ { "q" : 1, "y": 2010 }, { "q" : 1, "y": 2011 }, { "q" : 1, "y": 2012 }, { "q" : 2, "y": 2010 }, { "q" : 2, "y": 2011 }, { "q" : 2, "y": 2012 }, { "q" : 3, "y": 2010 }, { "q" : 3, "y": 2011 }, { "q" : 3, "y": 2012 }, { "q" : 4, "y": 2010 }, { "q" : 4, "y": 2011 }, { "q" : 4, "y": 2012 } ];
      var actual = getQueryResults("FOR quarter IN [ 1, 2, 3, 4 ] FOR year IN [ 2010, 2011, 2012 ] return { \"q\" : quarter, \"y\" : year }", false);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return values from nested for loops
////////////////////////////////////////////////////////////////////////////////

    testNestedFor2 : function () {
      var expected = [ { "q" : 1, "y": 2010 }, { "q" : 2, "y": 2010 }, { "q" : 3, "y": 2010 }, { "q" : 4, "y": 2010 }, { "q" : 1, "y": 2011 }, { "q" : 2, "y": 2011 }, { "q" : 3, "y": 2011 }, { "q" : 4, "y": 2011 }, { "q" : 1, "y": 2012 }, { "q" : 2, "y": 2012 }, { "q" : 3, "y": 2012 }, { "q" : 4, "y": 2012 } ];
      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012 ] for quarter IN [ 1, 2, 3, 4 ] return { \"q\" : quarter, \"y\" : year }", false);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return values from let
////////////////////////////////////////////////////////////////////////////////

    testNestedLet1 : function () {
      var expected = [ 2010, 2011, 2012 ];
      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012 ] let quarters = ((for quarter IN [ 1, 2, 3, 4 ] return quarter)) RETURN year", true);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return values from let
////////////////////////////////////////////////////////////////////////////////

    testNestedLet2 : function () {
      var expected = [ [ 1, 2, 3, 4 ], [ 1, 2, 3, 4 ], [ 1, 2, 3, 4 ] ];
      var actual = getQueryResults("FOR year IN [ 2010, 2011, 2012 ] let quarters = ((for quarter IN [ 1, 2, 3, 4 ] return quarter)) RETURN quarters", true);
      assertEqual(expected, actual);
    },

////////////////////////////////////////////////////////////////////////////////
/// @brief return asterisk
////////////////////////////////////////////////////////////////////////////////

    testAsterisk : function () {
      var expected = [ { "r" : 2010, "x" : [ [ { "name" : "a" }, { "name" : "b" } ], [ { "name" : "c" }, { "name" : "d" } ] ] }, { "r" : 2011, "x" : [ [ { "name" : "a" }, { "name" : "b" } ], [ { "name" : "c" }, { "name" : "d" } ] ] }, { "r" : 2011, "x" : [ [ { "name" : "a" }, { "name" : "b" } ], [ { "name" : "c" }, { "name" : "d" } ] ] } ];
      var actual = getQueryResults("FOR r IN [ 2010, 2011, 2011] LET x = ((FOR f IN [ { \"names\" : [ { \"name\" : \"a\" }, { \"name\" : \"b\" } ] }, { \"names\": [ { \"name\" : \"c\" }, { \"name\": \"d\" } ] } ] return f)) return { \"r\" : r, \"x\" : x[*].names }", false);
      assertEqual(expected, actual);
    },

  };
}

////////////////////////////////////////////////////////////////////////////////
/// @brief executes the test suite
////////////////////////////////////////////////////////////////////////////////

jsunity.run(ahuacatlQueryNonCollectionTestSuite);

return jsunity.done();

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