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#-- 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(url)
raise unless xml
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
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