config.rb

module Kaffeh
  class Config

    def initialize(cfg)
      self.path = cfg
      load
    end

    def path=(path)
      if File.exists?(path) and File.file?(path)
        @path = path
      elsif not File.exists?(path)
        File.open(path, "w") {}
        @path = path
      end
    end

    def path
      return @path
    end

    def load
      lines = File.open(@path, "r") do |f|
        f.read()
      end
      @settings = JSON.parse(lines)
    end

    def save
      File.open(@path, "w") do |file|
        file.puts JSON.generate(@settings, {:pretty_print => true})
      end
    end

    def []=(key, val)
      put(key, val)
    end

    def put(key, val)
      @settings[key] = val
    end

    def [](key)
      return get(key)
    end

    def get(key)
      return @settings[key]
    end

    def get?(key, fallback)
      if @settings.key?(key)
        return @settings[key]
      elsif fallback != nil
        put(key, fallback)
        return fallback
      else
        return nil
      end
    end

    def to_s
      return @settings.to_s
    end
  end
end