class Mod::CollectablesController < ModController
  before_action :set_model
  before_action :set_collectable, only: [:edit, :update]
  before_action :set_types, only: [:edit, :update]
  before_action :set_changes, only: [:edit, :update]

  def index
    @q = @model.all.ransack(params[:q])
    @missing = params[:missing]

    @collectables = @q.result.order(patch: :desc, id: :desc).paginate(page: params[:page])
    @collectables = @collectables.summonable if @model == Minion
    @collectables = @collectables.includes(sources: [:type, :related]) unless @skip_sources
    @collectables = @collectables.left_joins(:sources).group("#{controller_name}.id").having('count(sources.id) = 0') if @missing
  end

  def edit
    build_sources
  end

  def update
    update_params = collectable_params
    update_params[:sources_attributes]&.reject! { |_, source| source[:type_id].blank? }

    if @collectable.update(update_params)
      flash[:success] = "The #{@model.to_s.downcase} has been updated."
      redirect_to polymorphic_url([:mod, @collectable], action: :edit)
    else
      flash[:error] = "There was a problem updating the #{@model.to_s.downcase}."
      build_sources
      render :edit
    end
  end

  private
  def set_model
    @model = controller_name.singularize.capitalize.constantize
  end

  def set_collectable
    @collectable = @model.find(params[:id])
  end

  def set_types
    @types = SourceType.all.order(:name)
  end

  def set_changes
    @changes = PaperTrail::Version.where(collectable_type: @model.to_s, collectable_id: @collectable.id)
      .or(PaperTrail::Version.where(item_type: @model.to_s, item_id: @collectable.id))
      .includes(:user).order(id: :desc)
  end

  def skip_sources
    @skip_sources = true
  end

  def build_sources
    2.times { @collectable.sources.build } unless @skip_sources
  end

  def collectable_params
    params.require(@model.to_s.downcase).permit(:name_en, :patch, :details, :gender, sources_attributes:
                                                [:id, :type_id, :collectable_id, :collectable_type, :text, :limited, :premium])
  end
end