module MessageTrain
  class UnsubscribesController < MessageTrain::ApplicationController

    # GET /unsubscribes
    def index
      @subscriptions = @box_user.subscriptions
    end

    # POST /unsubscribes
    def create
      unsub = unsubscribe_params
      model = unsub[:from_type].constantize
      @from = model.find(unsub[:from_id])
      if @from == @box_user || @from.allows_receiving_by?(@box_user)
        @unsubscribe = @box_user.unsubscribe_from(@from)
        if @unsubscribe.errors.empty?
          if @from == @box_user
            flash[:notice] = :unsubscribe_message.l
          else
            name_column = MessageTrain.configuration.name_columns[@from.class.table_name.to_sym]
            collective_name = @from.send(name_column)
            collective_type = @from.class.name
            flash[:notice] = :collective_unsubscribe_message.l(collective_name: collective_name, collective_type: collective_type)
          end
        else
          flash[:error] = @unsubscribe.errors.full_messages.to_sentence
        end
        redirect_to message_train.unsubscribes_url
      else
        flash[:error] = :you_are_not_in_that_collective_type.l(collective_type: model.name)
        raise ActiveRecord::RecordNotFound
      end
    end

    # DELETE /unsubscribes/:id
    def destroy
      @unsubscribe = @box_user.unsubscribes.find(params[:id])
      @from = @unsubscribe.from
      if @from == @box_user
        message = :unsubscribe_removed_message.l
      else
        name_column = MessageTrain.configuration.name_columns[@unsubscribe.from.class.table_name.to_sym]
        collective_name = @unsubscribe.from.send(name_column)
        collective_type = @unsubscribe.from_type
        message = :collective_unsubscribe_removed_message.l(collective_name: collective_name, collective_type: collective_type)
      end
      @unsubscribe.destroy
      flash[:notice] = message
      redirect_to message_train.unsubscribes_url
    end

  private

    # Never trust parameters from the scary internet, only allow the white list through.
    def unsubscribe_params
      params.require(:unsubscribe).permit(:from_type, :from_id)
    end
  end
end