module GdsApi::TestHelpers::PublishingApi

def assert_publishing_api_put(url, attributes_or_matcher = {}, times = 1)
  if attributes_or_matcher.is_a?(Hash)
    matcher = attributes_or_matcher.empty? ? nil : request_json_matching(attributes_or_matcher)
  else
    matcher = attributes_or_matcher
  end
  if matcher
    assert_requested(:put, url, times: times, &matcher)
  else
    assert_requested(:put, url, times: times)
  end
end

def assert_publishing_api_put_draft_item(base_path, attributes_or_matcher = {}, times = 1)
  url = PUBLISHING_API_ENDPOINT + "/draft-content" + base_path
  assert_publishing_api_put(url, attributes_or_matcher, times)
end

def assert_publishing_api_put_intent(base_path, attributes_or_matcher = {}, times = 1)
  url = PUBLISHING_API_ENDPOINT + "/publish-intent" + base_path
  assert_publishing_api_put(url, attributes_or_matcher, times)
end

def assert_publishing_api_put_item(base_path, attributes_or_matcher = {}, times = 1)
  url = PUBLISHING_API_ENDPOINT + "/content" + base_path
  assert_publishing_api_put(url, attributes_or_matcher, times)
end

def content_item_for_publishing_api(base_path, publishing_app="publisher")
  content_item_for_base_path(base_path).merge("publishing_app" => publishing_app)
end

def intent_for_publishing_api(base_path, publishing_app="publisher")
  intent_for_base_path(base_path).merge("publishing_app" => publishing_app)
end

def publishing_api_has_path_reservation_for(path, publishing_app)
  data = publishing_api_path_data_for(path, "publishing_app" => publishing_app)
  error_data = data.merge({
    "errors" => {"path" => ["is already reserved by the #{publishing_app} application"]},
  })
  stub_request(:put, "#{PUBLISHING_API_ENDPOINT}/paths#{path}").
            to_return(:status => 422, :body => error_data.to_json,
                      :headers => {:content_type => "application/json"})
  stub_request(:put, "#{PUBLISHING_API_ENDPOINT}/paths#{path}").
    with(:body => {"publishing_app" => publishing_app}).
    to_return(:status => 200,
              :headers => {:content_type => "application/json"},
              :body => data.to_json)
end

def publishing_api_isnt_available
  stub_request(:any, /#{PUBLISHING_API_ENDPOINT}\/.*/).to_return(:status => 503)
end

def publishing_api_path_data_for(path, override_attributes = {})
  now = Time.zone.now.utc.iso8601
  {
    "path" => path,
    "publishing_app" => "foo-publisher",
    "created_at" => now,
    "updated_at" => now,
  }.merge(override_attributes)
end

def publishing_api_returns_path_reservation_validation_error_for(path, error_details = nil)
  error_details ||= {"base" => ["computer says no"]}
  error_data = publishing_api_path_data_for(path).merge("errors" => error_details)
  stub_request(:put, "#{PUBLISHING_API_ENDPOINT}/paths#{path}").
    to_return(:status => 422, :body => error_data.to_json, :headers => {:content_type => "application/json"})
end

def request_json_including(required_attributes)
  ->(request) do
    data = JSON.parse(request.body)
    values_match_recursively(required_attributes, data)
  end
end

def request_json_matching(required_attributes)
  ->(request) do
    data = JSON.parse(request.body)
    required_attributes.to_a.all? { |key, value| data[key.to_s] == value }
  end
end

def stub_default_publishing_api_path_reservation
  stub_request(:put, %r[\A#{PUBLISHING_API_ENDPOINT}/paths/]).to_return { |request|
     base_path = request.uri.path.sub(%r{\A/paths/}, "")
     { :status => 200,  :headers => {:content_type => "application/json"},
       :body => publishing_api_path_data_for(base_path).to_json }
  }
end

def stub_default_publishing_api_put()
  stub_request(:put, %r{\A#{PUBLISHING_API_ENDPOINT}/content})
end

def stub_default_publishing_api_put_draft()
  stub_request(:put, %r{\A#{PUBLISHING_API_ENDPOINT}/draft-content})
end

def stub_default_publishing_api_put_intent()
  stub_request(:put, %r{\A#{PUBLISHING_API_ENDPOINT}/publish-intent})
end

def stub_publishing_api_destroy_intent(base_path)
  url = PUBLISHING_API_ENDPOINT + "/publish-intent" + base_path
  stub_request(:delete, url).to_return(status: 200, body: '{}', headers: {"Content-Type" => "application/json; charset=utf-8"})
end

def stub_publishing_api_put_draft_item(base_path, body = content_item_for_publishing_api(base_path))
  stub_publishing_api_put_item(base_path, body, '/draft-content')
end

def stub_publishing_api_put_intent(base_path, body = intent_for_publishing_api(base_path))
  url = PUBLISHING_API_ENDPOINT + "/publish-intent" + base_path
  body = body.to_json unless body.is_a?(String)
  stub_request(:put, url).with(body: body).to_return(status: 200, body: '{}', headers: {"Content-Type" => "application/json; charset=utf-8"})
end

def stub_publishing_api_put_item(base_path, body = content_item_for_publishing_api(base_path), resource_path = '/content')
  url = PUBLISHING_API_ENDPOINT + resource_path + base_path
  stub_request(:put, url).with(body: body).to_return(status: 200, body: '{}', headers: {"Content-Type" => "application/json; charset=utf-8"})
end

def values_match_recursively(expected_value, actual_value)
  case expected_value
  when Hash
    return false unless actual_value.is_a?(Hash)
    expected_value.all? do |expected_sub_key, expected_sub_value|
      actual_value.has_key?(expected_sub_key.to_s) &&
        values_match_recursively(expected_sub_value, actual_value[expected_sub_key.to_s])
    end
  when Array
    return false unless actual_value.is_a?(Array)
    return false unless actual_value.size == expected_value.size
    expected_value.each.with_index.all? do |expected_sub_value, i|
      values_match_recursively(expected_sub_value, actual_value[i])
    end
  else
    expected_value == actual_value
  end
end