class Fanforce::Api::Response
  attr_reader :curl_command, :requested_url, :requested_params

  def initialize(response, request, requested_url, requested_params)
    @response = response
    @request = request
    @requested_url = requested_url
    @requested_params = requested_params
    raise Fanforce::Api::ServerError.new(response, request, requested_url, requested_params) if response.code > 201

    begin
      @response_hash = Fanforce::Utils.decode_json(response)
    rescue Exception => e
      raise Fanforce::Api::DecodingError.new(e, response, request, requested_url, requested_params)
    end

    @response_body = response.to_s
    @curl_command = Fanforce::Utils.curl_command(request.method, requested_url, requested_params)

    if @response_hash[:results].nil?
      @result = @response_hash
    else
      @results = @response_hash[:results]
      @current_results = @response_hash[:current_results]
      @total_results = @response_hash[:total_results]
      @current_page = @response_hash[:current_page]
      @total_pages = @response_hash[:total_pages]
      if request.method == :get and @response_hash[:total_pages] > @response_hash[:current_page]
        next_page = @response_hash[:current_page] + 1
        @next_url = "#{requested_url}?#{Fanforce::Utils.to_query_string(requested_params.merge(page: next_page))}"
      end
      if request.method == :get and @response_hash[:current_page] > 1
        prev_page = @response_hash[:current_page] - 1
        @prev_url = "#{requested_url}?#{Fanforce::Utils.to_query_string(requested_params.merge(page: prev_page))}"
      end
    end
  end

  def code
    @response.code
  end

  def to_json
    to_hash.to_json
  end

  def to_hash
    @response_hash
  end

  def to_s
    @response_body
  end

  def [](key)
    @response_hash[key]
  end

  def result
    @result || (raise NoMethodError, 'This API response returns more than 1 record. Try using "results".')
  end

  def results
    @results || (raise NoMethodError, 'This API response only returns 1 record. Try using "result".')
  end

  def current_results
    @current_results || 1
  end

  def total_results
    @total_results || 1
  end

  def current_page
    @current_page || 1
  end

  def total_pages
    @total_pages || 1
  end

  def prev_url
    @prev_url || nil
  end

  def next_url
    @next_url || nil
  end

end