# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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_relative "buildable"
require_relative "data-type"
require_relative "writable"

module Helper
  class FlightInfoGenerator
    include Buildable
    include DataType
    include Writable

    def page_view_table
      build_table("count" => build_uint64_array([1, 2, 3]),
                  "private" => build_boolean_array([true, false, true]))
    end

    def page_view_descriptor
      ArrowFlight::PathDescriptor.new(["page-view"])
    end

    def page_view_ticket
      ArrowFlight::Ticket.new("page-view")
    end

    def page_view_endpoints(ticket=page_view_ticket)
      locations = [
        ArrowFlight::Location.new("grpc+tcp://127.0.0.1:10000"),
        ArrowFlight::Location.new("grpc+tcp://127.0.0.1:10001"),
      ]
      [
        ArrowFlight::Endpoint.new(ticket, locations),
      ]
    end

    def page_view(ticket=page_view_ticket)
      table = page_view_table
      descriptor = page_view_descriptor
      endpoints = page_view_endpoints(ticket)
      output = Arrow::ResizableBuffer.new(0)
      write_table(table, output, type: :stream)
      ArrowFlight::Info.new(table.schema,
                            descriptor,
                            endpoints,
                            table.n_rows,
                            output.size)
    end
  end
end
