fotos/lib/fotos/source_directory.rb

module Fotos
  class SourceDirectory
    Image = Data.define(:dir_name, :file_name, :file_path, :thumbnail_name, :thumbnail_path)

    def initialize(path)
      @path = path
    end

    attr_reader :path

    #TODO: Filter out non image subdirecories
    def subdirectories
      Dir.glob("#{@path}/*").map {|d| d.split('/').last}
    end

    def dates
      subdirectories.map do |d|
        Date.strptime(d, DATE_FORMAT)
      rescue Date::Error
        next
      end.compact
    end

    def files_by_date
      result = {}
      dates.each do |date|
        dir_name = date.strftime(DATE_FORMAT)
        files = Dir.glob(File.join(@path, dir_name, "*"))
        result[date] = files.map { |path| Fotos::Asset.new(path) }
      end
      return result
    end
  end
end