class UsersController < ApplicationController
    before_action :authenticate_user!

    def show
        if current_user
            @user = User.find(params[:id])
        else
            redirect_to '/users/sign_in'
        end
    end

    def add_url
        @user = current_user
        if @user.image_urls.nil?
            @user.image_urls = [params[:url]]
        else
            @user.image_urls.push(params[:url])
        end
        @my_url = "[" + url + "]"
        `python lib/computer_vision.py my_url`
        @user.save
        redirect_to user_path
    end

    def follow
			current_user.follow(Group.find(params[:id]))
			redirect_to group_path(params[:id])
	end

	def unfollow
			current_user.stop_following(Group.find(params[:id]))
			redirect_to group_path(params[:id])
	end
end