# encoding: UTF-8

# Copyright 2011-2013 innoQ Deutschland GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

class ExportsController < ApplicationController
  before_action do
    authorize! :export, Concept::Base
  end

  def index
    @export = Export.new
    @exports = Export.order('id DESC')
  end

  def show
    @export = Export.find(params[:id])
    flash[:warning] = t('txt.views.export.success') unless @export.finished_at?
  end

  def create
    export = Export.new(export_params)
    export.user = current_user
    export.token = srand

    if export.save
      filename = export.build_filename
      job = ExportJob.new(export, filename,export.file_type, export.default_namespace)
      Delayed::Job.enqueue(job)

      flash[:success] = t('txt.views.export.success')
    else
      flash[:error] = t('txt.views.export.error')
    end
    redirect_to exports_path
  end

  def destroy
    export = Export.find(params[:id])
    if export.destroy
      flash[:success] = t('txt.views.export.delete.success')
    else
      flash[:error] = t('txt.views.export.delete.error')
    end
    redirect_to exports_path
  end

  def download
    export = Export.find(params[:export_id])
    time = export.finished_at&.strftime('%Y-%m-%d_%H-%M')

    Rails.logger.debug("Try to serve export from: #{export.build_filename}")
    send_file export.build_filename, filename: "export-#{time}.#{export.file_type}"
  rescue ::ActionController::MissingFile => e
    flash[:error] = t('txt.views.export.missing_file')
    redirect_to exports_path
  end

  private

  def export_params
    params.require(:export).permit(:file_type, :default_namespace)
  end
end
