def create
    @ticket = current_user.tickets.build(ticket_params)
    @ticket.to_be_returned = false

    @event = Event.find(@ticket.event_id)
    if @event.event_date.today?
      @ticket.price = 1.2 * @event.price_high
    else
      @ticket.price = (@event.price_low + (DateTime.now..@event.event_date).count*(@event.price_high-@event.price_low)/30).round(2)
    end

    sum = 0
    if @ticket.count!=nil
        current_user.tickets.each do |t|
          if t.event_id==@ticket.event_id
              sum+=t.count
          end
        end
    end

    event = Event.find(@ticket.event_id)

    respond_to do |format|
      if @ticket.count!=nil && @ticket.count>event.available_tickets
        flash[:alert] = "Pozostało tylko " + (event.available_tickets).to_s + " wolnych miejsc na wydarzeniu."
        format.html { render :action => 'new', :id => @ticket.event_id }
        format.json { render json: @ticket.errors, status: :unprocessable_entity }
      elsif sum > 5
        flash[:alert] = "Maksymalna liczba wszystkich biletów zakupiona przez użytkownika na pojedyńcze wydarzenie to 5 sztuk. Dotychczas użytkownik zakupił już " + (sum - @ticket.count).to_s + " sztuk."
        format.html { render :action => 'new', :id => @ticket.event_id }
        format.json { render json: @ticket.errors, status: :unprocessable_entity }
      elsif @ticket.count && @ticket.price > current_user.cash
        flash[:alert] = "Brak wystarczających srodków na koncie."
        format.html { render :action => 'new', :id => @ticket.event_id }
        format.json { render json: @ticket.errors, status: :unprocessable_entity }
      else
        if @ticket.save
          current_user.cash -=@ticket.price
          current_user.save

          event.available_tickets -=@ticket.count
          event.save

          format.html { redirect_to :action => 'index', notice: 'Ticket was successfully created.' }
          format.json { render :show, status: :created, location: @ticket }
        else
          format.html { render :action => 'new', :id => @ticket.event_id }
          format.json { render json: @ticket.errors, status: :unprocessable_entity }
        end
      end
    end
  end