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path: root/app/controllers/mini_environments_controller.rb
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# GOV.UK Mini Environment Admin
# Copyright © 2018  Christopher Baines <mail@cbaines.net>
#
# This file is part of the GOV.UK Mini Environment Admin.
#
# The GOV.UK Mini Environment Admin is free software: you can
# redistribute it and/or modify it under the terms of the GNU Affero
# General Public License as published by the Free Software Foundation,
# either version 3 of the License, or (at your option) any later
# version.
#
# The GOV.UK Mini Environment Admin is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with the GOV.UK Mini Environment Admin.  If not, see
# <http://www.gnu.org/licenses/>.

class MiniEnvironmentsController < ApplicationController
  DEFAULT_SERVICES = %w(
    collections-publisher
    contacts-admin
    content-tagger
    local-links-manager
    manuals-publisher
    maslow
    policy-publisher
    publisher
    service-manual-publisher
    short-url-manager
    specialist-publisher
    travel-advice-publisher
    whitehall

    calculators
    calendars
    collections
    email-alert-frontend
    feedback
    finder-frontend
    frontend
    government-frontend
    licencefinder
    manuals-frontend
    service-manual-frontend
    smartanswers

    draft-collections
    draft-email-alert-frontend
    draft-frontend
    draft-government-frontend
    draft-finder-frontend
    draft-manuals-frontend
    draft-service-manual-frontend
  ).freeze

  def show
    @mini_environment = MiniEnvironment.find(params[:id])
  end

  def new
    @mini_environment = MiniEnvironment.new

    @mini_environment.signon_users = [
      {
        name: current_user.name,
        email: current_user.email
      }
    ]
  end

  def create
    parameters = params.require(
      :mini_environment
    ).permit(
      :name,
      :govuk_guix_revision_id,
      :backend,
      signon_users_attributes: [
        :name,
        :email,
        :role
      ]
    )

    @mini_environment = MiniEnvironment.new(
      parameters
        .except(:backend)
    )
    @mini_environment.backend = Backends.find_by_type_and_id(
      *parameters[:backend].split('=')
    )
    @mini_environment.signon_users[0]['passphrase'] = SecureRandom.hex
    @mini_environment.save!

    redirect_to services_mini_environment_path(@mini_environment)
  end

  def services
    @mini_environment = MiniEnvironment.find(params[:id])

    if request.put?
      @mini_environment.transaction do
        @mini_environment.govuk_guix_revision.all_available_services
          .each do |service|

          name = service['name']

          next if params["#{name}-selected"] != 'on'

          revision = params["#{name}-revision"]

          @mini_environment.services.where(
            name: name
          ).delete_all

          @mini_environment.services.create(
            name: name,
            revision: revision
          )
        end

        data_snapshot_id = params.fetch(:data_snapshot, nil)

        if data_snapshot_id
          # TODO: Validate that this is on the list of approved snapshots

          @mini_environment.update!(
            data_snapshot_id: data_snapshot_id
          )
        end
      end

      MiniEnvironmentJob.enqueue(@mini_environment.id, :build)
      redirect_to @mini_environment
    end
  end

  def perform_action
    @mini_environment = MiniEnvironment.find(params[:mini_environment_id])

    action = params.require(:commit)

    case action
    when 'Destroy'
      MiniEnvironmentJob.enqueue(@mini_environment.id, :destroy)

      flash[:notice] = 'Destroying mini environment'
    when 'Start'
      MiniEnvironmentJob.enqueue(@mini_environment.id, :start)

      flash[:notice] = 'Starting mini environment'
    when 'Refresh'
      MiniEnvironmentJob.enqueue(@mini_environment.id, :refresh)

      flash[:notice] = 'Refreshing the mini environment state information'
    else
      flash[:error] = "Unknown action #{action}"
    end

    render 'show'
  end
end