class BooksController < ApplicationController
  before_action :verify_user_session
  skip_before_action :verify_user_session, only: [:index, :show]

  def index
    @books = Book.all
  end

  def show
    @book = Book.find(params[:id])
  end

  def new
    @book = Book.new
  end

  def create
    Book.create(book_params)
    redirect_to books_path
  end

  def edit
    @book = Book.find(params[:id])
  end

  def update
    book = Book.find(params[:id])
    book.update(book_params)
    redirect_to book_path(book)
  end

  def destroy
    book = Book.find(params[:id])
    book.destroy
    redirect_to books_path
  end

  def book_params
    params.require(:book).permit(:title, :author, :price_cents, :quantity, :description)
  end

  def verify_user_session
    if session[:user_id].blank?
      flash[:alert] = "Please login to continue"
      redirect_to new_session_path
    end
  end
end