module RubyInspector
  class DevToolsRequestTracker
    def self.next_request_id
      @current_request_id ||= 0
      @current_request_id += 1
    end

    attr_reader :request_id, :request_tracker

    def initialize(request_tracker)
      @request_tracker = request_tracker
      @request_id = self.class.next_request_id.to_s
      notify_request_started
      request_tracker.on_response { notify_response_received }
      request_tracker.on_body { notify_body_received }
    end

    def notify_request_started
      RubyInspector.send_info(
        method: 'Network.requestWillBeSent',
        params: {
          requestId: request_id,
          request: {
            url: request_tracker.url,
            method: request_tracker.method,
            headers: request_tracker.request_headers,
            postData: request_tracker.request_body
          },
          timestamp: Time.now.to_f,
          type: 'Other'
        }
      )
    end

    def notify_response_received
      RubyInspector.send_info(
        method: 'Network.responseReceived',
        params: {
          requestId: request_id,
          timestamp: Time.now.to_f,
          type: 'Document',
          response: {
            url: request_tracker.url,
            status: request_tracker.status_code,
            statusText: request_tracker.status_message,
            headers: request_tracker.response_headers,
            mimeType: 'text/html',
            requestHeaders: request_tracker.request_headers,
            remotePort: request_tracker.port
          }
        }
      )
    end

    def notify_body_received
      RubyInspector.send_info(
        method: 'RubyInspector.network.cacheBody',
        params: { requestId: request_id },
        result: {
          body: request_tracker.response_body,
          base64Encoded: false
        }
      )

      RubyInspector.send_info(
        method: 'Network.loadingFinished',
        params: {
          requestId: request_id,
          timestamp: Time.now.to_f,
          encodedDataLength: request_tracker.response_body.length
        }
      )
    end
  end
end