bookstore/app/controllers/sessions_controller.rb

# frozen_string_literal: true

# Sessions controller
class SessionsController < ApplicationController
  def new; end

  def create
    @user = User.find_by(email: params[:email])
    problem = problem_with_login
    if problem
      redirect_to '/welcome', notice: problem
    else
      session[:user_id] = @user.id
      redirect_to '/welcome'
    end
  end

  def delete
    session.delete(:user_id)
    redirect_to '/welcome', notice: 'Logged out properly'
  end

  def welcome; end

  private

  def problem_with_login
    if !@user
      'Wrong email address'
    elsif !@user.authenticate(params[:password])
      'Wrong password'
    elsif @user.blocked?
      'You are blocked, please contact support'
    end
  end
end