class SchedulesController < ApplicationController
  def index
    @schedule = Schedule.order(:hour, :minute)
    @modbus_running = Modbus::PollingService.running?
  end

  def new
    @schedule = Schedule.new
  end

  def create
    @schedule = Schedule.new(schedule_params)

    if @schedule.save
      redirect_to schedule_edit_schedules_path, notice: "스케쥴이 추가 되었습니다."
    else
      error_messages = @schedule.errors.full_messages.join(", ")
      redirect_to schedule_edit_schedules_path, alert: "스케쥴 추가 실패: #{error_messages}"
    end
  end

  def destroy
    @schedule = Schedule.find_by(id: params[:id])

    if @schedule.destroy
      redirect_to schedule_edit_schedules_path, notice: "스케줄이 삭제되었습니다."
    else
      error_messages = @schedule.errors.full_messages.join(", ")
      redirect_to schedule_edit_schedules_path, alert: "스케쥴 삭제 실패: #{error_messages}"
    end
  end

  def reset
    Schedule.delete_all
    ActiveRecord::Base.connection.execute("DELETE FROM sqlite_sequence WHERE name='schedules'")
    Rails.application.load_seed

    redirect_to schedules_path, notice: "스케줄이 초기화되었습니다."
  end

  def schedule_edit
    @schedule = Schedule.order(:hour, :minute)
  end

  def schedule_edit_update
    error_messages = []

    params[:schedule].each do |id, attributes|
      schedule = Schedule.find_by(id: id)
      next unless schedule

      unless schedule.update(
        hour:        attributes[:hour],
        minute:      attributes[:minute],
        is_active:   attributes[:is_active],
        temperature: attributes[:temperature]
      )

        error_detail = schedule.errors.full_messages.join(", ")
        time_label = "#{attributes[:hour]}시 #{attributes[:minute]}분"
        error_messages << "#{time_label} - #{error_detail}"
      end
    end

    if error_messages.any?
      redirect_to schedules_path, alert: error_messages.join("<br>")
    else
      redirect_to schedules_path, notice: "스케줄이 성공적으로 업데이트되었습니다."
    end
  end

  private
  def schedule_params
    params.require(:schedule).permit(:hour, :minute, :is_active, :temperature)
  end
end