# Author:: Mike Evans <mike@urlgonomics.com>
# Copyright:: 2013 Urlgonomics LLC.
# License:: Apache License, Version 2.0
#
# 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.
#

require File.join(File.dirname(__FILE__), 'setup')

class TestView < Minitest::Test

  def setup
    return unless $mock.real?

    cb.save_design_doc(design_doc)
    { bob: 32, frank: 25, sam: 42, fred: 21 }.each_pair do |name, age|
      cb.set(name, { type: 'user', name: name, age: age })
    end
  end

  def view
    @view ||= Couchbase::View.new(cb, '_design/users/_view/by_age')
  end

  def reduce_view
    @reduce_view ||= Couchbase::View.new(cb, '_design/users/_view/all')
  end

  def test_initialize
    skip unless $mock.real?
    assert_equal 'users',  view.design_doc
    assert_equal 'by_age', view.name
  end

  def test_simple_fetch
    skip unless $mock.real?
    assert results = view.fetch
    assert results.is_a?(Couchbase::View::ArrayWithTotalRows)
  end

  def test_fetch_without_stale
    skip unless $mock.real?
    assert results = view.fetch(stale: false)
    assert_instance_of Couchbase::ViewRow, results.first
    assert results.first.doc.nil?
    assert_equal 4, results.total_rows
    results.each do |result|
      %w(bob frank sam fred).include?(result.key)
    end
  end

  def test_fetch_with_docs
    skip unless $mock.real?
    assert results = view.fetch(stale: false, include_docs: true)
    assert_instance_of Couchbase::View::ArrayWithTotalRows, results
    assert_instance_of Hash, results.first.doc
  end

  def test_fetch_with_block
    skip unless $mock.real?
    refute view.fetch(stale: false, include_docs: true) { |row|
      assert_instance_of Couchbase::ViewRow, row
      assert row.doc['name'].is_a?(String)
      assert row.doc['age'].is_a?(Fixnum)
    }
  end

  def test_fetch_reduce
    skip unless $mock.real?
    assert results = reduce_view.fetch(stale: false, include_docs: false)
    assert_instance_of Couchbase::ViewRow, results.first
    assert_equal 4, results.first.value
  end

  def test_fetch_without_reduce
    skip unless $mock.real?
    assert results = reduce_view.fetch(stale: false, reduce: false)
    assert_instance_of Couchbase::ViewRow, results.first
    assert results.first.doc.nil?
    assert_equal 4, results.total_rows
    results.each do |result|
      %w(bob frank sam fred).include?(result.key)
    end
  end

  def test_design_doc_access
    skip unless $mock.real?
    view.fetch(stale: false, include_docs: true)
    assert results = cb.design_docs['users'].by_age.to_a
    assert_instance_of Couchbase::ViewRow, results.first
  end

  def design_doc
    {
      '_id'      => '_design/users',
      'language' => 'javascript',
      'views' => {
        'by_age' => {
          'map' => <<-JS
            function (doc, meta) {
              if (doc.type && doc.type == 'user')
                emit(meta.id, doc.age);
            }
          JS
        },
        'all' => {
          'reduce' => '_count',
          'map' => <<-JS
            function (doc, meta) {
              if (doc.type && doc.type == 'user')
                emit(meta.id, null);
            }
          JS
        }
      }
    }
  end
end