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# this file be licensed under the Apache-2.0 license or a
# compatible open source license.
#
# Modifications Copyright OpenSearch Contributors. See
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# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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require_relative '../../../../spec_helper'

describe OpenSearch::DSL::Search::Aggregations::DateHistogram do
  let(:search) do
    described_class.new
  end

  describe '#to_hash' do
    it 'can be converted to a hash' do
      expect(search.to_hash).to eq(date_histogram: {})
    end
  end

  context 'when options methods are called' do
    let(:search) do
      described_class.new(:foo)
    end

    describe '#field' do
      before do
        search.field('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:field]).to eq('bar')
      end
    end

    describe '#interval' do
      before do
        search.interval('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:interval]).to eq('bar')
      end
    end

    describe '#pre_zone' do
      before do
        search.pre_zone('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:pre_zone]).to eq('bar')
      end
    end

    describe '#post_zone' do
      before do
        search.post_zone('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:post_zone]).to eq('bar')
      end
    end

    describe '#time_zone' do
      before do
        search.time_zone('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:time_zone]).to eq('bar')
      end
    end

    describe '#pre_zone_adjust_large_interval' do
      before do
        search.pre_zone_adjust_large_interval('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:pre_zone_adjust_large_interval]).to eq('bar')
      end
    end

    describe '#pre_offest' do
      before do
        search.pre_offset('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:pre_offset]).to eq('bar')
      end
    end

    describe '#post_offset' do
      before do
        search.post_offset('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:post_offset]).to eq('bar')
      end
    end

    describe '#format' do
      before do
        search.format('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:format]).to eq('bar')
      end
    end

    describe '#min_doc_count' do
      before do
        search.min_doc_count('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:min_doc_count]).to eq('bar')
      end
    end

    describe '#extended_bounds' do
      before do
        search.extended_bounds('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:extended_bounds]).to eq('bar')
      end
    end

    describe '#order' do
      before do
        search.order('bar')
      end

      it 'applies the option' do
        expect(search.to_hash[:date_histogram][:foo][:order]).to eq('bar')
      end
    end
  end

  describe '#initialize' do
    context 'when a block is provided' do
      let(:search) do
        described_class.new do
          field    'bar'
          interval 'day'
          format   'yyyy-MM-dd'
        end
      end

      it 'executes the block' do
        expect(search.to_hash).to eq(date_histogram: { field: 'bar', interval: 'day', format: 'yyyy-MM-dd' })
      end
    end
  end
end