class CamaleonCms::Admin::Settings::CustomFieldsController < CamaleonCms::Admin::SettingsController
  add_breadcrumb I18n.t("camaleon_cms.admin.sidebar.custom_fields"), :cama_admin_settings_custom_fields_path
  before_action :set_custom_field_group, only: [:show,:edit,:update,:destroy]
  before_action :set_post_data, only: [:create, :update]

  def index
    @field_groups = current_site.custom_field_groups.visible_group.eager_load(:site)
    @field_groups = @field_groups.where(object_class: params[:c]) if params[:c].present?
    @field_groups = @field_groups.where(objectid: params[:id]) if params[:id].present?
    @field_groups = @field_groups.paginate(page: params[:page], per_page: current_site.admin_per_page)
  end

  def get_items
    @key = params[:key]
    render partial: "get_items", layout: false
  end

  def show
  end

  def edit
    add_breadcrumb I18n.t("camaleon_cms.admin.button.edit")
    render 'form'
  end

  def update
    if @field_group.update(@post_data) && _save_fields(@field_group)
      redirect_to action: :edit, id: @field_group.id
    else
      render 'form'
    end
  end

  def new
    add_breadcrumb I18n.t("camaleon_cms.admin.button.new")
    @field_group ||= current_site.custom_field_groups.new
    render 'form'
  end

  # create a new custom field group
  def create
    @field_group = current_site.custom_field_groups.new(@post_data)
    if @field_group.save && _save_fields(@field_group)
      redirect_to action: :edit, id: @field_group.id
    else
      new
    end
  end

  # destroy a custom field group
  def destroy
    @field_group.destroy
    flash[:notice] = t('camaleon_cms.admin.custom_field.message.deleted', default: "Custom Field Group Deleted.")
    redirect_to action: :index
  end

  # reorder custom fields group
  def reorder
    params[:values].to_a.each_with_index do |value, index|
      current_site.custom_field_groups.find(value).update_column('field_order', index)
    end
    json = { size: params[:values].size }
    render json: json
  end

  private

  def set_post_data
    @post_data = params.require(:custom_field_group).permit!
    @post_data[:object_class], @post_data[:objectid] = @post_data.delete(:assign_group).split(',')
    @caption = @post_data.delete(:caption)
  end

  def set_custom_field_group
    begin
      @field_group = current_site.custom_field_groups.find(params[:id])
    rescue
      flash[:error] = t('camaleon_cms.admin.custom_field.message.custom_group_error')
      redirect_to cama_admin_path
    end
  end

  # return boolean: true if all fields were saved successfully
  def _save_fields(group)
    errors_saved, all_fields = group.add_fields(params.require(:fields).permit!, params.require(:field_options).permit!)
    group.set_option('caption', @caption)
    if errors_saved.present?
      flash[:error] = "<b>#{t('camaleon_cms.errors_found_msg', default: 'Several errors were found, please check.')}</b><br>#{errors_saved.map{|field| "#{field.name}: " + "#{field.errors.messages.map{|k,v| "#{k.to_s.titleize}: #{v.join('|')}"}.join(', ')}" }.join('<br>')}"
    else
      flash[:notice] = t('camaleon_cms.admin.custom_field.message.custom_updated')
    end
    true
  end
end