#Define methods 
get "/test-nlp" do

  text = "A hero can be anyone. Even a man doing something as simple and reassuring as
  putting a coat around a little boy's shoulder to let him know that the world hadn't ended."

  response = get_npl_for(text)

  puts response.to_json

  keywords = get_keywords_from_response response

  keywords.to_s
end

def get_keywords_from_response resp

  return [] if resp.nil?


  keywords = []
  puts resp
  resp["keywords"].each do |kw|
    keywords << kw["text"]
  end

  return keywords

end


def get_npl_for text


  features = {
   sentiment: {}, keywords: {}, concepts: {}, emotion: {}, entities: {}
  }

  data = {
   "features" => features,
   "text" => text
  }
  params = {  "version" => "2018-03-19"  }

  headers = {
   "Content-Type"=>"application/json"
  }

  auth = { username: "apikey", password: ENV['WATSON_API_KEY'] }

  data = data.to_json if data.instance_of?(Hash)

  url = ENV["WATSON_URL"]
  method = "/v1/analyze"


 response = HTTParty.post(
   url + method,
   basic_auth: auth,
   headers: headers,
   query: params,
   body: data
   )
end


#SEARCH FOR KEYWORDS

if body.include? "i dreamt"
      session[:dream] = body
      response = get_npl_for( body )

      keywords = get_keywords_from_response( response )
      puts keywords
      answer = search_answer_for (keywords[0])
      image = search_unsplash_for( keywords.join( ", ") )
      media = image
      message = keywords[0].capitalize + " was a symbol in your dream. " + answer

end