class HTTPConn

# File lib/http_conn.rb, line 10
def initialize(url, settings = {})
  @started = false
  @http = nil
  @url = url

  self.settings = {
    header: {},
    ssl: false,
    cert: "",
    read_timeout: 60
  }
  self.settings.merge!(settings)
end

# File lib/http_conn.rb, line 24
def get(options = {})
  default = {
    end_point: "",
    header: {},
    query_str: {}
  }
  options = default.merge(options)
  url = query_str("#{@url}#{options[:end_point]}", options[:query_str])

  uri = URI(url)
  http = @started ? @http : get_http(uri)
  request = Net::HTTP::Get.new(uri.request_uri,
                               settings[:header].merge(options[:header]))
  http.request(request)
end

# File lib/http_conn.rb, line 40
def post(options = {})
  default = {
    end_point: "",
    header: {},
    body: nil
  }
  options = default.merge(options)
  uri = URI("#{@url}#{options[:end_point]}")

  http = @started ? @http : get_http(uri)
  request = Net::HTTP::Post.new(uri.request_uri,
                                settings[:header].merge(options[:header]))
  http.request(request, options[:body])
end

# File lib/http_conn.rb, line 55
def start(uri = nil)
  @started = true
  @http = uri.nil? ? get_http(URI(@url)) : get_http(URI(uri))
  @http.start
  yield
  @http.finish # Close connection after usage in 'yield'.
  @started = false
end

# File lib/http_conn.rb, line 79
def get_http(uri)
  http = Net::HTTP.new(uri.host, uri.port)
  http.read_timeout = settings[:read_timeout]

  if settings[:ssl]
    http.use_ssl = true
    if settings[:cert].empty?
      http.verify_mode = OpenSSL::SSL::VERIFY_NONE
    else
      http.verify_mode = OpenSSL::SSL::VERIFY_PEER
      http.cs_file = settings[:cert]
    end
  end
  http
end

# File lib/http_conn.rb, line 66
def query_str(url, data)
  unless data.empty?
    first = data.keys[0]
    url = "#{url}?#{first}=#{data[first]}"

    data.each_key do |key|
      next if key == first
      url = "#{url}&#{key}=#{data[key]}"
    end
  end
  url
end