add lib_spotify plugin

diff --git a/data/rbot/plugins/lib_spotify.rb b/data/rbot/plugins/lib_spotify.rb
new file mode 100644 (file)
index 0000000..a30157c
--- /dev/null
+++ b/data/rbot/plugins/lib_spotify.rb
@@ -0,0 +1,83 @@
+#-- vim:sw=2:et
+#++
+#
+# :title: spotify library used at least in spotify and lastfm plugins
+#
+# Author:: Raine Virta <raine.virta@gmail.com>
+#
+# Copyright:: (C) 2009 Raine Virta
+#
+# License:: GPL v2
+
+require 'rexml/document'
+require 'cgi'
+
+module ::Spotify
+  class SpotifyObject
+    def initialize(xml)
+      @spotify_id = xml.attributes["href"]
+    end
+
+    def url
+      id = @spotify_id[@spotify_id.rindex(':')+1..-1]
+      method = self.class.to_s.split('::').last.downcase
+      return "http://open.spotify.com/#{method}/#{id}"
+    end
+  end
+
+  class Album < SpotifyObject
+    attr_reader :name, :released, :artist
+
+    def initialize(xml)
+      super
+      @name = xml.elements["name"].text
+      if e = xml.elements["artist"]
+        @artist = Artist.new(xml.elements["artist"])
+      end
+      if e = xml.elements["released"]
+        @released = e.text.to_i
+      end
+    end
+  end
+
+  class Artist < SpotifyObject
+    attr_reader :name
+
+    def initialize(xml)
+      super
+      @name = xml.elements["name"].text
+    end
+  end
+
+  class Track < SpotifyObject
+    attr_reader :name, :artist, :album, :track_number
+
+    def initialize(xml)
+      super
+      @name = xml.elements["name"].text
+      @artist = Artist.new(xml.elements["artist"])
+      @album = Album.new(xml.elements["album"])
+      @track_number = xml.elements["track-number"].text.to_i
+      @length = xml.elements["length"].text.to_f
+    end
+
+    def to_s
+      str = "#{artist.name} – #{name} [#{album.name}"
+      str << ", #{album.released}" if album.released
+      str << "]"
+    end
+  end
+
+  def self.get(service, method, query, page=1)
+    query.tr!('-','')
+    url = "http://ws.spotify.com/#{service}/1/#{method}?q=#{CGI.escape(query)}&page=#{page}"
+    xml = Irc::Utils.bot.httputil.get_response(url).body
+    return REXML::Document.new(xml).root
+  end
+
+  def self.search(method, query, page=1)
+    doc = get(:search, method, query, page)
+    return nil if doc.elements["opensearch:totalResults"].text.to_i.zero?
+    return Spotify.const_get(method.to_s.capitalize).new(doc.elements[method.to_s])
+  end
+end