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 * Open MCT, Copyright (c) 2014-2016, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is 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.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
 * this source code distribution or the Licensing information page available
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 *****************************************************************************/

/**
 *  SearchSpec. Created by shale on 07/31/2015.
 */
define([
    '../src/ElasticSearchProvider'
], function (
    ElasticSearchProvider
) {

    describe('ElasticSearchProvider', function () {
        var $http,
            ROOT,
            provider;

        beforeEach(function () {
            $http = jasmine.createSpy('$http');
            ROOT = 'http://localhost:9200';

            provider = new ElasticSearchProvider($http, ROOT);
        });

        describe('query', function () {
            beforeEach(function () {
                spyOn(provider, 'cleanTerm').andReturn('cleanedTerm');
                spyOn(provider, 'fuzzyMatchUnquotedTerms').andReturn('fuzzy');
                spyOn(provider, 'parseResponse').andReturn('parsedResponse');
                $http.andReturn(Promise.resolve({}));
            });

            it('cleans terms and adds fuzzyness', function () {
                provider.query('hello', 10);
                expect(provider.cleanTerm).toHaveBeenCalledWith('hello');
                expect(provider.fuzzyMatchUnquotedTerms)
                    .toHaveBeenCalledWith('cleanedTerm');
            });

            it('calls through to $http', function () {
                provider.query('hello', 10);
                expect($http).toHaveBeenCalledWith({
                    method: 'GET',
                    params: {
                        q: 'fuzzy',
                        size: 10
                    },
                    url: 'http://localhost:9200/_search/'
                });
            });

            it('gracefully fails when http fails', function () {
                var promiseChainResolved = false;
                $http.andReturn(Promise.reject());

                provider
                    .query('hello', 10)
                    .then(function (results) {
                        expect(results).toEqual({
                            hits: [],
                            total: 0
                        });
                        promiseChainResolved = true;
                    });

                waitsFor(function () {
                    return promiseChainResolved;
                });
            });

            it('parses and returns when http succeeds', function () {
                var promiseChainResolved = false;
                $http.andReturn(Promise.resolve('successResponse'));

                provider
                    .query('hello', 10)
                    .then(function (results) {
                        expect(provider.parseResponse)
                            .toHaveBeenCalledWith('successResponse');
                        expect(results).toBe('parsedResponse');
                        promiseChainResolved = true;
                    });

                waitsFor(function () {
                    return promiseChainResolved;
                });
            });
        });

        it('can clean terms', function () {
            expect(provider.cleanTerm('   asdhs  ')).toBe('asdhs');
            expect(provider.cleanTerm('  and some    words'))
                .toBe('and some words');
            expect(provider.cleanTerm('Nice input')).toBe('Nice input');
        });

        it('can create fuzzy term matchers', function () {
            expect(provider.fuzzyMatchUnquotedTerms('pwr dvc 43'))
                .toBe('pwr~ dvc~ 43~');

            expect(provider.fuzzyMatchUnquotedTerms(
                    'hello welcome "to quoted village" have fun'
                )).toBe(
                    'hello~ welcome~ "to quoted village" have~ fun~'
                );
        });

        it('can parse responses', function () {
            var elasticSearchResponse = {
                    data: {
                        hits: {
                            total: 2,
                            hits: [
                                {
                                    '_id': 'hit1Id',
                                    '_source': 'hit1Model',
                                    '_score': 0.56
                                },
                                {
                                    '_id': 'hit2Id',
                                    '_source': 'hit2Model',
                                    '_score': 0.34
                                }
                            ]
                        }
                    }
                };

            expect(provider.parseResponse(elasticSearchResponse))
                .toEqual({
                    hits: [
                        {
                            id: 'hit1Id',
                            model: 'hit1Model',
                            score: 0.56
                        },
                        {
                            id: 'hit2Id',
                            model: 'hit2Model',
                            score: 0.34
                        }
                    ],
                    total: 2
                });
        });
    });

});