bio-miga/miga-web

module SessionsHelper
   
   # Logs in the given user.
   def log_in(user)
      session[:user_id] = user.id
   end

   def remember(user)
      user.remember
      cookies.permanent.signed[:user_id] = user.id
      cookies.permanent[:remember_token] = user.remember_token
   end

   # Returns true if the given user is the current user.
   def current_user?(user)
      user == current_user
   end

   # Returns the current logged-in user (if any).
   def current_user
      if (user_id = session[:user_id])
     @current_user ||= User.find_by(id: user_id)
      elsif (user_id = cookies.signed[:user_id])
     user = User.find_by(id: user_id)
     if user && user.authenticated?(:remember, cookies[:remember_token])
        log_in user
        @current_user = user
     end
      end
   end

   # Returns true if the user is logged in, false otherwise.
   def logged_in?
      !current_user.nil?
   end

   # Forgets a persistent session.
   def forget(user)
      user.forget
      cookies.delete(:user_id)
      cookies.delete(:remember_token)
   end

   # Logs out the current user.
   def log_out
      forget(current_user)
      session.delete(:user_id)
      @current_user = nil
   end

   # Redirects to stored location (or to the default).
   def redirect_back_or(default)
      redirect_to(session[:forwarding_url] || default)
      session.delete(:forwarding_url)
   end

   # Stores the URL trying to be accessed.
   def store_location
      session[:forwarding_url] = request.url if request.get?
   end
end