require 'oauth2'
require 'json'

class SurveysController < ApplicationController
  before_action :authenticate_oauth2, except: :callback
  #respond_to :html

  # List all surveys
  def home
    @surveys1 = Survey.all
    @surveys2 = Survey.all.includes(:answers).where( promo2016: true, answers: { uid: @user["uid"] } )
    /case @user["promo"]
      when 2016
        @surveys1 = Survey.all.where( promo2016: true).includes(:answers).where.not( :answers => { :uid => @user["uid"] } )
        @surveys2 = Survey.all.includes(:answers).where( promo2016: true, answers: { uid: @user["uid"] } )
      when 2017
        @surveys1 = Survey.all.where( promo2017: true).includes(:answers).where.not( :answers => { :uid => @user["uid"] } )
        @surveys2 = Survey.all.includes(:answers).where( promo2017: true, answers: { uid: @user["uid"] } )
      when 2018
        @surveys1 = Survey.all.where( promo2018: true).includes(:answers).where.not( :answers => { :uid => @user["uid"] } )
        @surveys2 = Survey.all.includes(:answers).where( promo2018: true, answers: { uid: @user["uid"] } )
    end/
  end

  # Show a single survey by id : GET /surveys/3
  def show
    @survey = Survey.find( params[:id] )
  end

  # List surveys created by the user
  def created
    case @user["promo"]
      when 2016
        @surveys = Survey.all.where( promo2016: true, creator_uid: @user["uid"] )
      when 2017
        @surveys = Survey.all.where( promo2017: true, creator_uid: @user["uid"] )
      when 2018
        @surveys = Survey.all.where( promo2018: true, creator_uid: @user["uid"] )
    end
  end

  def my_answers

    case @user["promo"]
      when 2016
        @surveys = Survey.all.includes(:answers).where( promo2016: true, answers: { uid: @user["uid"] } )
      when 2017
        @surveys = Survey.all.includes(:answers).where( promo2017: true, answers: { uid: @user["uid"] } )
      when 2018
        @surveys = Survey.all.includes(:answers).where( promo2018: true, answers: { uid: @user["uid"] } )
    end

  end

  def to_respond
    case @user["promo"]
      when 2016
        @surveys = Survey.all.where( promo2016: true).includes(:answers).where.not( answers: { uid: @user["uid"] } )
      when 2017
        @surveys = Survey.all.where( promo2017: true).includes(:answers).where.not( answers: { uid: @user["uid"] } )
      when 2018
        @surveys = Survey.all.where( promo2018: true).includes(:answers).where.not( answers: { uid: @user["uid"] } )
    end
  end

  def respond
    @survey = Survey.find( params[:id] )
  end

  # Show a new survey form
  def new
    @survey = Survey.new
    2.times { @survey.questions.build }
  end

  # Create a new survey : POST /surveys
  def create
    @survey = Survey.new(survey_params)
    @survey.creator_uid = @user["uid"]

    respond_to do |format|
      if @survey.save
        format.html { redirect_to root_path, notice: 'Survey was successfully created.' }
        format.json { render json: root_path, status: :created, location: @survey }
      else
        puts @survey.errors.full_messages
        format.html { render action: "new" }
        format.json { render json: @survey.errors, status: :unprocessable_entity }
      end
    end
  end

  def edit
    @survey.questions.build
  end

  def add
    @survey = Survey.find(params[:id])
    params.each do |p|
      puts p
      a = Answer.new
      a.text = p.text
      a.uid = @user["uid"]
      a.question = p.question_id
      a.save
    end
  end

  # Update a survey : PUT /surveys/3
  def update
    @survey = Survey.find(params[:id])
    @survey.update_attributes(params[:survey])
    @survey.questions.build
  end

  # Destroy a survey by id : DELETE /surveys/3
  def destroy
    @survey = Survey.find( params[:id] )

    respond_to do |format|
      if @survey.destroy
        format.html { redirect_to root_path, notice: 'Survey was successfully deleted.' }
        format.js { Materialize.toast('I am a toast!', 4000) }
      else
        puts @survey.errors.full_messages
        format.html { render action: "destroy" }
      end
    end
  end

  def callback
    set_oauth
    if params[:error] != nil
      redirect_to "https://ares-ensiie.eu/"
    else
      puts params[:code]
      access_token = @oauth.auth_code.get_token( params[:code], :redirect_uri =>callback_url )
     # access_token = @oauth.auth_code.get_token(params[:code], :redirect_uri => "urn:ietf:wg:oauth:2.0:oob")
      session[:access_token] = access_token.token
      redirect_to root_path
    end
  end
  protected

  def set_oauth
    @oauth = OAuth2::Client.new(OAUTH_CONFIG['APP_ID'], OAUTH_CONFIG['APP_SECRET'], :site => OAUTH_CONFIG['OAUTH_PROVIDER'], :ssl => {:verify => false})
  end

  def authenticate_oauth2
    set_oauth
    if session[:access_token]
      access_token = OAuth2::AccessToken.new(@oauth, session[:access_token])
      begin
        @user = JSON.parse(access_token.get("/api/v1/me.json").body)
        return
      rescue Exception => e
        puts e.message
      end
    end

    redirect_to @oauth.auth_code.authorize_url(:redirect_uri => callback_url )
    #redirect_to @oauth.auth_code.authorize_url(:redirect_uri => "urn:ietf:wg:oauth:2.0:oob")
  end

  def survey_params
    params.require(:survey).permit(:title, :description, :visibility,
                                   :accepted_after, :definitive_answer,
                                    :limit_date, :promo2018, :promo2017, :promo2016,
                                   questions_attributes: [ :text, :question_type, :_destroy ] )
  end

end