# SPDX-License-Identifier: Apache-2.0
#
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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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#
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# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
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# 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
#
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require_relative '../../../spec_helper'

describe 'client#msearch' do
  let(:expected_args) do
    [
      'POST',
      url,
      params,
      body,
      headers
    ]
  end

  let(:body) do
    nil
  end

  let(:url) do
    '_msearch'
  end

  let(:params) do
    {}
  end

  let(:headers) do
    { 'Content-Type' => 'application/x-ndjson' }
  end

  let(:client) do
    Class.new { include OpenSearch::API }.new
  end

  it 'requires the :body argument' do
    expect do
      client.msearch
    end.to raise_exception(ArgumentError)
  end

  context 'when the body is an object' do
    let(:body) do
      <<-PAYLOAD.gsub(/^\s+/, '')
            {"index":"foo"}
            {"query":{"match_all":{}}}
            {"index":"bar"}
            {"query":{"match":{"foo":"bar"}}}
            {"search_type":"count"}
            {"facets":{"tags":{}}}
      PAYLOAD
    end

    it 'performs the request' do
      expect(
        client_double.msearch(
          body: [
            { index: 'foo', search: { query: { match_all: {} } } },
            { index: 'bar', search: { query: { match: { foo: 'bar' } } } },
            { search_type: 'count', search: { facets: { tags: {} } } }
          ]
        )
      )
    end
  end

  context 'when the body is a string' do
    let(:body) do
      %({"foo":"bar"}\n{"moo":"lam"})
    end

    it 'performs the request' do
      expect(client_double.msearch(body: %({"foo":"bar"}\n{"moo":"lam"}))).to eq({})
    end
  end

  context 'when an index is specified' do
    let(:url) do
      'foo/_msearch'
    end

    let(:body) do
      ''
    end

    it 'performs the request' do
      expect(client_double.msearch(index: 'foo', body: []))
    end
  end

  context 'when multiple indices are specified' do
    let(:url) do
      'foo,bar/_msearch'
    end

    let(:body) do
      ''
    end

    it 'performs the request' do
      expect(client_double.msearch(index: %w[foo bar], body: []))
    end
  end

  context 'when the request needs to be URL-escaped' do
    let(:url) do
      'foo%5Ebar/_msearch'
    end

    let(:body) do
      ''
    end

    it 'performs the request' do
      expect(client_double.msearch(index: 'foo^bar', body: [])).to eq({})
    end
  end

  context 'when the URL params need to be URL-encoded' do
    let(:url) do
      '_msearch'
    end

    let(:body) do
      ''
    end

    let(:params) do
      { search_type: 'scroll' }
    end

    it 'performs the request' do
      expect(client_double.msearch(body: [], search_type: 'scroll')).to eq({})
    end
  end
end