class ModbusController < ApplicationController
  def index
    @schedule = Schedule.all
    @modbus_running = Modbus::PollingService.running?
  end

  def start
    Modbus::PollingService.start
    redirect_to modbus_index_path
  end

  def stop
    Modbus::PollingService.stop
    redirect_to modbus_index_path
  end

  def schedule_edit
    @schedule = Schedule.all
  end

  def schedule_edit_update
    error_hours = []

    params[:schedule].each do |id, attributes|
      schedule = Schedule.find_by(id: id)
      unless schedule.update(temperature: attributes[:temperature])
        error_hours << "#{schedule.hour}시"
      end
    end

    if error_hours.any?
      redirect_to modbus_index_path, alert: "#{error_hours.join(', ')}의 온도 업데이트에 실패하였습니다."
    else
      redirect_to modbus_index_path, notice: "스케줄이 성공적으로 업데이트되었습니다."
    end
  end
end