class WorkflowStepsController < ApplicationController
  layout 'admin'
  before_action :require_admin
  before_action :find_workflow, only: [:create, :update, :destroy, :move]
  before_action :find_step, only: [:update, :destroy, :move]

  def create
    @step = @workflow.workflow_steps.build(step_params)
    if @step.save
      flash[:notice] = '단계가 추가되었습니다.'
    else
      flash[:error] = @step.errors.full_messages.join(', ')
    end
    redirect_to custom_workflow_path(@workflow)
  end

  def update
    if @step.update(step_params)
      flash[:notice] = '단계가 수정되었습니다.'
    else
      flash[:error] = @step.errors.full_messages.join(', ')
    end
    redirect_to custom_workflow_path(@workflow)
  end

  def destroy
    @step.destroy
    flash[:notice] = '단계가 삭제되었습니다.'
    redirect_to custom_workflow_path(@workflow)
  end

  def move
    direction = params[:direction]
    if direction == 'up' && @step.position > 0
      swap_step = @workflow.workflow_steps.find_by(position: @step.position - 1)
      if swap_step
        swap_step.update(position: @step.position)
        @step.update(position: @step.position - 1)
      end
    elsif direction == 'down'
      swap_step = @workflow.workflow_steps.find_by(position: @step.position + 1)
      if swap_step
        swap_step.update(position: @step.position)
        @step.update(position: @step.position + 1)
      end
    end
    redirect_to custom_workflow_path(@workflow)
  end

  # 담당자 추가
  def add_assignee
    @step = WorkflowStep.find(params[:step_id])
    assignee = @step.workflow_step_assignees.build(
      assignee_type: params[:assignee_type],
      assignee_id: params[:assignee_id]
    )
    if assignee.save
      flash[:notice] = '담당자가 추가되었습니다.'
    else
      flash[:error] = assignee.errors.full_messages.join(', ')
    end
    redirect_to custom_workflow_path(@step.custom_workflow)
  end

  # 담당자 제거
  def remove_assignee
    @step = WorkflowStep.find(params[:step_id])
    assignee = @step.workflow_step_assignees.find(params[:id])
    assignee.destroy
    flash[:notice] = '담당자가 제거되었습니다.'
    redirect_to custom_workflow_path(@step.custom_workflow)
  end

  private

  def find_workflow
    @workflow = CustomWorkflow.find(params[:workflow_id])
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def find_step
    @step = @workflow.workflow_steps.find(params[:id])
  rescue ActiveRecord::RecordNotFound
    render_404
  end

  def step_params
    params.require(:workflow_step).permit(:name, :description, :issue_status_id, :is_start, :is_end, :due_days)
  end
end