jbox-web/redmine_git_hosting

# frozen_string_literal: true

module Gitolitable
  module Permissions
    extend ActiveSupport::Concern

    def build_gitolite_permissions(old_perms = {})
      permissions_builder.build self, gitolite_users, old_perms
    end

    # We assume here that ':gitolite_config_file' is different than 'gitolite.conf'
    # like 'redmine.conf' with 'include "redmine.conf"' in 'gitolite.conf'.
    # This way, we know that all repos in this file are managed by Redmine so we
    # don't need to backup users
    #
    def backup_gitolite_permissions(current_permissions)
      if protected_branches_available? || RedmineGitHosting::Config.gitolite_identifier_prefix == ''
        {}
      else
        extract_permissions current_permissions
      end
    end

    private

    def permissions_builder
      if protected_branches_available?
        PermissionsBuilder::ProtectedBranches
      else
        PermissionsBuilder::Standard
      end
    end

    SKIP_USERS = %w[gitweb daemon DUMMY_REDMINE_KEY REDMINE_ARCHIVED_PROJECT REDMINE_CLOSED_PROJECT].freeze

    def extract_permissions(current_permissions)
      old_permissions = {}

      current_permissions.each do |perm, branch_settings|
        old_permissions[perm] = {}

        branch_settings.each do |branch, user_list|
          next if user_list.empty?

          new_user_list = []

          user_list.each do |user|
            # ignore these users
            next if SKIP_USERS.include? user

            # backup users that are not Redmine users
            new_user_list.push user unless user.include? RedmineGitHosting::Config.gitolite_identifier_prefix
          end

          old_permissions[perm][branch] = new_user_list if new_user_list.any?
        end
      end

      old_permissions
    end
  end
end