require_relative 'dpc_folder_converter/converter'

module Ddr::IngestTools
  module DpcFolderConverter
    #Configuration defaults
    @config = {
        included_extensions: [ '.jpg', '.mov', '.mp3', '.mp4', '.pdf', '.tif', '.tiff', '.wav' ],
        csv_options: { :encoding=>"UTF-8", :col_sep=>"\t", :headers=>true, :write_headers=>true,
                       :header_converters=>:symbol }
    }

    @valid_config_keys = @config.keys

    # Configure through hash
    def self.configure(opts = {})
      opts.each {|k,v| @config[k.to_sym] = v if @valid_config_keys.include?(k.to_sym)}
    end

    # Configure through yaml file
    def self.configure_with(path_to_yaml_file)
      begin
        config = YAML::load(IO.read(path_to_yaml_file))
      rescue Errno::ENOENT
        log(:warning, "YAML configuration file couldn't be found. Using defaults."); return
      rescue Psych::SyntaxError
        log(:warning, "YAML configuration file contains invalid syntax. Using defaults."); return
      end
      configure(config)
    end

    def self.config
      @config
    end
  end
end