module Lit
  class LocalizationsController < ::Lit::ApplicationController
    before_action :find_localization_key
    before_action :find_localization

    def show
      render json: { value: @localization.get_value }
    end

    def edit
      @localization.translated_value = @localization.get_value
      respond_to do |format|
        format.js
      end
    end

    def update
      if @localization.update_attributes(clear_params)
        @localization.update_column :is_changed, true
        Lit.init.cache.update_cache @localization.full_key, @localization.get_value
      end
      @localization.reload
      respond_to do |f|
        f.js
        f.json do
          render json: { value: @localization.get_value }
        end
      end
    end

    def previous_versions
      @versions = @localization.versions.order('created_at DESC')
      respond_to :js
    end

    private

    def find_localization_key
      @localization_key = Lit::LocalizationKey. \
                          find(params[:localization_key_id])
    end

    def find_localization
      @localization = @localization_key.localizations.find(params[:id])
    end

    def clear_params
      if params.respond_to?(:permit)
        # allow translated_value to be an array
        if @localization.value.is_a?(Array)
          params.require(:localization).permit(:locale_id, translated_value: [])
        else
          params.require(:localization).permit(:locale_id, :translated_value)
        end
      else
        params[:localization].is_a?(Hash) ? params[:localization].slice(:translated_value, :locale_id) : {}
      end
    end
  end
end