jbox-web/redmine_git_hosting

# frozen_string_literal: true

module RedmineGitHosting
  module Cache
    class Database < AbstractCache
      class << self
        def set_cache(repo_id, command, output)
          logger.debug "DB Adapter : inserting cache entry for repository '#{repo_id}'"
          begin
            GitCache.create command: command, command_output: output, repo_identifier: repo_id
            true
          rescue StandardError => e
            logger.error "DB Adapter : could not insert in cache, this is the error : '#{e.message}'"
            false
          end
        end

        def get_cache(repo_id, command)
          cached = GitCache.find_by repo_identifier: repo_id, command: command
          if cached
            if valid_cache_entry? cached.created_at
              # Update updated_at flag
              cached.touch unless cached.command_output.nil?
              out = cached.command_output
            else
              cached.destroy
              out = nil
            end
          else
            out = nil
          end
          out
        end

        def flush_cache!
          ActiveRecord::Base.connection.execute 'TRUNCATE git_caches'
        end

        def clear_obsolete_cache_entries
          return if time_limit.nil?

          deleted = GitCache.where('created_at < ?', time_limit).delete_all
          logger.info "DB Adapter : removed '#{deleted}' expired cache entries among all repositories"
        end

        def clear_cache_for_repository(repo_id)
          deleted = GitCache.where(repo_identifier: repo_id).delete_all
          logger.info "DB Adapter : removed '#{deleted}' expired cache entries for repository '#{repo_id}'"
        end

        def apply_cache_limit
          GitCache.order(:created_at).first.destroy if max_cache_elements >= 0 && GitCache.count > max_cache_elements
        end
      end
    end
  end
end