module Oxidized
  class OxidizedFile < Output
    require 'fileutils'

    attr_reader :commitref

    def initialize
      @cfg = Oxidized.config.output.file
    end

    def setup
      if @cfg.empty?
        Oxidized.asetus.user.output.file.directory = File.join(Config::Root, 'configs')
        Oxidized.asetus.save :user
        raise NoConfig, 'no output file config, edit ~/.config/oxidized/config'
      end
    end

    def store node, outputs, opt = {}
      file = File.expand_path @cfg.directory
      if opt[:group]
        file = File.join File.dirname(file), opt[:group]
      end
      FileUtils.mkdir_p file
      file = File.join file, node
      open(file, 'w') { |fh| fh.write outputs.to_cfg }
      @commitref = file
    end

    def fetch node, group
      cfg_dir   = File.expand_path @cfg.directory
      node_name = node.name

      if group # group is explicitly defined by user
        cfg_dir = File.join File.dirname(cfg_dir), group
        File.read File.join(cfg_dir, node_name)
      else
        if File.exists? File.join(cfg_dir, node_name) # node configuration file is stored on base directory
          File.read File.join(cfg_dir, node_name)
        else
          path = Dir.glob(File.join(File.dirname(cfg_dir), '**', node_name)).first # fetch node in all groups
          File.read path
        end
      end
    rescue Errno::ENOENT
      return nil
    end

    def version node, group
      # not supported
      []
    end

    def get_version node, group, oid
      'not supported'
    end
  end
end