mingujo/UCBerkeley_Housing

module SessionsHelper
    
    def signed_in?
        return (not (session[:user_id].nil? or get_user.nil?))
    end
    
    def require_login
        if session[:user_id].nil?
            redirect_to '/auth/login'
        else
            user = get_user
            if user.nil?
                flash[:notice] = "This email is not authorized"
                session[:user_id] = nil
                redirect_to '/auth/login'
            end
        end
    end
    
    def require_ca_login
        user = Ca.get_by_user_id(session[:user_id])
        unless user.nil?
            if @ca.id != user.id
                flash[:notice] = "You cannot access that user's info"
                redirect_to ca_path(user.id)
            end
        end
    end

    def require_admin_login
        user = Admin.get_by_user_id(session[:user_id])
        if user.nil?
            flash[:notice] = "You must be admin to access that page"
            user = Ca.get_by_user_id(session[:user_id])
            redirect_to ca_path(user.id)
        end
    end
    
    def get_user
        user_id = session[:user_id]
        user = Ca.get_by_user_id(user_id)
        if user.nil?
            user = Admin.get_by_user_id(user_id)
        end
        return user
    end

end