class InvoicesController < ApplicationController
  def index
    @invoices = Invoice.where(user_id: current_user.id)
  end

  def show
    @invoice = Invoice.find(params[:id])
  end

  def new
    @invoice = Invoice.new(date: Date.today, date_of_payment: Date.today + 14.days)
    inv = Invoice.where('date > ?', Date.new(Date.today.year,1,1)).last
    if !inv.blank?
      nr = inv.number
      new_nr = (nr.split("/")[0].to_i + 1).to_s + "/" + nr.split("/")[1]
      @invoice.number = new_nr
    end
    @user_firms = current_user.user_firms
    @customers = current_user.customers
  end

  def create
    @invoice = Invoice.new(invoice_params)
    @invoice.user_id = current_user.id
    if @invoice.save
      redirect_to @invoice
    else
      @user_firms = current_user.user_firms
      @customers = current_user.customers
      render :new
    end
  end

  def edit
    @invoice = Invoice.find(params[:id])
    @user_firms = current_user.user_firms
    @customers = current_user.customers
  end

  def update
    @invoice = Invoice.find(params[:id])
    if @invoice.update_attributes(invoice_params)
      redirect_to @invoice
    else
      @user_firms = current_user.user_firms
      @customers = current_user.customers
      render :edit
    end
  end

  def destroy
    @invoice = Invoice.find(params[:id])
    @invoice.destroy unless @invoice.blank?
    redirect_to invoices_path
  end

  private
  def invoice_params
    params.require(:invoice).permit(:number, :user_firm_id, :customer_id, :date, :date_of_payment)
  end
end