# frozen_string_literal: true

# Redmine plugin for Document Management System "Features"
#
# Karel Pičman <karel.picman@kontron.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

# Modisy columns
class StatusDeleted < ActiveRecord::Migration[4.2]
  def up
    case ActiveRecord::Base.connection.adapter_name.downcase
    when /postgresql/
      execute 'ALTER TABLE dmsf_folders ALTER deleted DROP DEFAULT;'
      change_column :dmsf_folders, :deleted,
                    'INTEGER USING CASE deleted WHEN TRUE THEN 1 ELSE 0 END',
                    null: false, default: DmsfFolder::STATUS_ACTIVE
      execute 'ALTER TABLE dmsf_files ALTER deleted DROP DEFAULT;'
      change_column :dmsf_files, :deleted, 'INTEGER USING CASE deleted WHEN TRUE THEN 1 ELSE 0 END',
                    null: false, default: DmsfFile::STATUS_ACTIVE
      execute 'ALTER TABLE dmsf_file_revisions ALTER deleted DROP DEFAULT;'
      change_column :dmsf_file_revisions, :deleted,
                    'INTEGER USING CASE deleted WHEN TRUE THEN 1 ELSE 0 END',
                    null: false, default: DmsfFileRevision::STATUS_ACTIVE
      execute 'ALTER TABLE dmsf_links ALTER deleted DROP DEFAULT;'
      change_column :dmsf_links, :deleted,
                    'INTEGER USING CASE deleted WHEN TRUE THEN 1 ELSE 0 END',
                    null: false, default: DmsfLink::STATUS_ACTIVE
    else
      change_column :dmsf_folders, :deleted, :integer, default: DmsfFolder::STATUS_ACTIVE
      change_column :dmsf_files, :deleted, :integer, default: DmsfFile::STATUS_ACTIVE
      change_column :dmsf_file_revisions, :deleted, :integer, default: DmsfFile::STATUS_ACTIVE
      change_column :dmsf_links, :deleted, :integer, default: DmsfFile::STATUS_ACTIVE
    end
  end

  def down
    case ActiveRecord::Base.connection.adapter_name.downcase
    when /postgresql/
      execute 'ALTER TABLE dmsf_folders ALTER deleted DROP DEFAULT;'
      change_column :dmsf_folders, :deleted,
                    'BOOLEAN USING CASE WHEN deleted=1 THEN TRUE ELSE FALSE END',
                    null: false, default: false
      execute 'ALTER TABLE dmsf_files ALTER deleted DROP DEFAULT;'
      change_column :dmsf_files, :deleted,
                    'BOOLEAN USING CASE WHEN deleted=1 THEN TRUE ELSE FALSE END',
                    null: false, default: false
      execute 'ALTER TABLE dmsf_file_revisions ALTER deleted DROP DEFAULT;'
      change_column :dmsf_file_revisions, :deleted,
                    'BOOLEAN USING CASE WHEN deleted=1 THEN TRUE ELSE FALSE END',
                    null: false, default: false
      execute 'ALTER TABLE dmsf_links ALTER deleted DROP DEFAULT;'
      change_column :dmsf_links, :deleted,
                    'BOOLEAN USING CASE WHEN deleted=1 THEN TRUE ELSE FALSE END',
                    null: false, default: false
    else
      change_column :dmsf_folders, :deleted, :boolean, null: false, default: false
      change_column :dmsf_files, :deleted, :boolean, null: false, default: false
      change_column :dmsf_file_revisions, :deleted, :boolean,
                    null: false, default: false
      change_column :dmsf_links, :deleted, :boolean, null: false, default: false
    end
  end
end
