class Groups::MilestonesController < Groups::ApplicationController
  include GlobalMilestones

  before_action :projects
  before_action :milestones, only: [:index]
  before_action :milestone, only: [:show, :update]
  before_action :authorize_group_milestone!, only: [:create, :update]

  def index
  end

  def new
    @milestone = Milestone.new
  end

  def create
    project_ids = params[:milestone][:project_ids]
    title = milestone_params[:title]

    @group.projects.where(id: project_ids).each do |project|
      Milestones::CreateService.new(project, current_user, milestone_params).execute
    end

    redirect_to milestone_path(title)
  end

  def show
  end

  def update
    @milestone.milestones.each do |milestone|
      Milestones::UpdateService.new(milestone.project, current_user, milestone_params).execute(milestone)
    end

    redirect_back_or_default(default: milestone_path(@milestone.title))
  end

  private

  def authorize_group_milestone!
    return render_404 unless can?(current_user, :admin_milestones, group)
  end

  def milestone_params
    params.require(:milestone).permit(:title, :description, :due_date, :state_event)
  end

  def milestone_path(title)
    group_milestone_path(@group, title.parameterize, title: title)
  end

  def projects
    @projects ||= @group.projects
  end
end