git.r.bdr.sh - rbdr/lyricli.rb/blob - lib/lyricli/source_manager.rb

   1 module Lyricli
   2   class SourceManager
   3
   4     include Util
   5
   6     def initialize
   7       @enabled_sources = []
   8       @config = Configuration.instance
   9       @config["enabled_sources"].each do |source|
  10         if klass = parse_class(camelize(source))
  11           current_source = klass.new
  12           @enabled_sources << current_source
  13         else
  14           raise StartSourceException
  15         end
  16       end
  17     end
  18
  19     def enable(source_name)
  20       if klass = parse_class(camelize(source_name))
  21         klass.enable
  22         @config["enabled_sources"] << klass.name
  23         @config["enabled_sources"].uniq!
  24       else
  25         raise EnableSourceException
  26       end
  27     end
  28
  29     def disable(source_name)
  30       if klass = parse_class(camelize(source_name))
  31         @config["enabled_sources"].delete(klass.name)
  32       else
  33         raise DisableSourceException
  34       end
  35     end
  36
  37     def reset(source_name)
  38       if klass = parse_class(camelize(source_name))
  39         klass.reset
  40         disable(source_name)
  41       else
  42         raise ResetSourceException
  43       end
  44     end
  45
  46     def current_track
  47       track = nil
  48       @enabled_sources.each do |source|
  49         begin
  50           track ||= source.current_track
  51         rescue
  52           fail "Source #{source.name} has failed to start. Please reset the source by running `#{$0} source reset #{source.name}.`"
  53         end
  54       end
  55       track
  56     end
  57
  58     def available_sources
  59       path_root = File.expand_path(File.dirname(__FILE__))
  60       sources = Dir[path_root+"/sources/*"].map{ |s|
  61         s.split("/").last.gsub(/\.rb/, "")
  62       }
  63
  64       # Remove arguments (Hack?) We don't want anybody to touch tihs one.
  65       sources.delete("arguments")
  66       sources
  67     end
  68   end
  69 end