class ClipsController < ApplicationController
  allow_unauthenticated_access only: %i[ index show ]
  before_action :set_clip, only: %i[ show edit update destroy ]
  def index
    @clips = Clip.all
  end

  def show
  end

  def new
    @clip = Clip.new
  end

  def create
    @clip = Clip.new(clip_params)
    if @clip.save
      params[:clip][:tag_ids].each do |tag_id|
        unless tag_id.empty?
          tag = Tag.find(tag_id)
          @clip.tags << tag
        end
      end

      redirect_to @clip
    else
      render :new, status: :unprocessable_entity
    end
  end

  def edit
  end

  def update    
    if @clip.update(clip_params)
      newtags = []
      params[:clip][:tag_ids].each do |tag_id|
        unless tag_id.empty?
          tag = Tag.find(tag_id)
          newtags.push(tag)
          unless @clip.tags.include? tag
            @clip.tags << tag
          end 
        end
      end

      @clip.tags.each do |tag|
        unless newtags.include? tag
          @clip.tags.delete tag
        end
      end

      redirect_to @clip
    else
      render :edit, status: :unprocessable_entity
    end
  end

  def destroy
    @clip.destroy
    redirect_to clips_path
  end

  private
    def set_clip
      @clip = Clip.find(params[:id])
    end

    def clip_params
      params.expect(clip: [ :title, :video, :category_id ])
    end
end