X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=data%2Frbot%2Fplugins%2Flastfm.rb;h=9be57d1617e9e18016f767c0a0df397a88da8df4;hb=ff452ad1bf111025f0661274ac7fb8b2f769a293;hp=7c0309e14ee81d43872024668b980c476d624351;hpb=6045de0659fe340a6a95d6ee4984a5a4753ce3cc;p=user%2Fhenk%2Fcode%2Fruby%2Frbot.git

diff --git a/data/rbot/plugins/lastfm.rb b/data/rbot/plugins/lastfm.rb
index 7c0309e1..9be57d16 100644
--- a/data/rbot/plugins/lastfm.rb
+++ b/data/rbot/plugins/lastfm.rb
@@ -6,14 +6,17 @@
 # Author:: Jeremy Voorhis
 # Author:: Giuseppe "Oblomov" Bilotta <giuseppe.bilotta@gmail.com>
 # Author:: Casey Link <unnamedrambler@gmail.com>
+# Author:: Raine Virta <rane@kapsi.fi>
 #
 # Copyright:: (C) 2005 Jeremy Voorhis
 # Copyright:: (C) 2007 Giuseppe Bilotta
 # Copyright:: (C) 2008 Casey Link
+# Copyright:: (C) 2009 Raine Virta
 #
 # License:: GPL v2
 
 require 'rexml/document'
+require 'cgi'
 
 class ::LastFmEvent
   def initialize(hash)
@@ -27,18 +30,18 @@ class ::LastFmEvent
 
     if @artists.length > 10 #more than 10 artists and it floods
       diff = @artists.length - 10
-      @artist_string = @artists[0..10].join(', ')
+      @artist_string = Bold + @artists[0..10].join(', ') + Bold
       @artist_string << _(" and %{n} more...") % {:n => diff}
     else
-      @artist_string = @artists.join(', ')
+      @artist_string = Bold + @artists.join(', ') + Bold
     end
   end
 
   def compact_display
-   if @attendance
-     return "%s %s @ %s (%s attending) %s" % [@date.strftime("%a %b, %d %Y"), @artist_string, @location, @attendance, @url]
+   unless @attendance.zero?
+     return "%s %s @ %s (%s attending) %s" % [@date.strftime("%a, %b %d"), @artist_string, @location, @attendance, @url]
    end
-   return "%s %s @ %s %s" % [@date.strftime("%a %b, %d %Y"), @artist_string, @location, @url]
+   return "%s %s @ %s %s" % [@date.strftime("%a, %b %d"), @artist_string, @location, @url]
   end
   alias :to_s :compact_display
 
@@ -52,6 +55,18 @@ class LastFmPlugin < Plugin
   Config.register Config::IntegerValue.new('lastfm.default_events',
     :default => 3, :validate => Proc.new{|v| v > 1},
     :desc => "Default number of events to display.")
+  Config.register Config::IntegerValue.new('lastfm.max_shouts',
+    :default => 5, :validate => Proc.new{|v| v > 1},
+    :desc => "Maximum number of user shouts to display.")
+  Config.register Config::IntegerValue.new('lastfm.default_shouts',
+    :default => 3, :validate => Proc.new{|v| v > 1},
+    :desc => "Default number of user shouts to display.")
+  Config.register Config::IntegerValue.new('lastfm.max_user_data',
+    :default => 25, :validate => Proc.new{|v| v > 1},
+    :desc => "Maximum number of user data entries (except events and shouts) to display.")
+  Config.register Config::IntegerValue.new('lastfm.default_user_data',
+    :default => 10, :validate => Proc.new{|v| v > 1},
+    :desc => "Default number of user data entries (except events and shouts) to display.")
 
   APIKEY = "b25b959554ed76058ac220b7b2e0a026"
   APIURL = "http://ws.audioscrobbler.com/2.0/?api_key=#{APIKEY}&"
@@ -69,6 +84,7 @@ class LastFmPlugin < Plugin
   end
 
   def help(plugin, topic="")
+    period = _(", where <period> can be one of: 3|6|12 months, a year")
     case (topic.intern rescue nil)
     when :event, :events
       _("lastfm [<num>] events in <location> => show information on events in or near <location>. lastfm [<num>] events by <artist/group> => show information on events by <artist/group>. The number of events <num> that can be displayed is optional, defaults to %{d} and cannot be higher than %{m}") % {:d => @bot.config['lastfm.default_events'], :m => @bot.config['lastfm.max_events']}
@@ -76,14 +92,40 @@ class LastFmPlugin < Plugin
       _("lastfm artist <name> => show information on artist <name> from last.fm")
     when :album
       _("lastfm album <name> => show information on album <name> from last.fm [not implemented yet]")
+    when :track
+      _("lastfm track <name> => search tracks matching <name> on last.fm")
     when :now, :np
-      _("lastfm now [<user>] => show the now playing track from last.fm.  np [<user>] does the same.")
+      _("lastfm now [<nick>] => show the now playing track from last.fm. np [<nick>] does the same.")
     when :set
-      _("lastfm set nick <user> => associate your current irc nick with a last.fm user. lastfm set verb <present> <past> => set your preferred now playing verb. default \"listening\" and \"listened\".")
+      _("lastfm set user <user> => associate your current irc nick with a last.fm user. lastfm set verb <present>, <past> => set your preferred now playing/just played verbs. default \"is listening to\" and \"listened to\".")
     when :who
-      _("lastfm who [<nick>] => show who <nick> is at last.fm. if <nick> is empty, show who you are at lastfm.")
+      _("lastfm who [<nick>] => show who <nick> is on last.fm. if <nick> is empty, show who you are on lastfm.")
+    when :compare
+      _("lastfm compare [<nick1>] <nick2> => show musical taste compatibility between nick1 (or user if omitted) and nick2")
+    when :shouts
+      _("lastfm shouts [<nick>] => show shouts to <nick>")
+    when :friends
+      _("lastfm friends [<nick>] => show <nick>'s friends")
+    when :neighbors, :neighbours
+      _("lastfm neighbors [<nick>] => show people who share similar musical taste as <nick>")
+    when :lovedtracks
+      _("lastfm loved[tracks] [<nick>] => show tracks that <nick> has loved")
+    when :recenttracks, :recentracks
+      _("lastfm recent[tracks] [<nick>] => show tracks that <nick> has recently played")
+    when :topalbums
+      _("lastfm topalbums [<nick>] [over <period>] => show <nick>'s top albums%{p}") % { :p => period }
+    when :topartists
+      _("lastfm topartists [<nick>] [over <period>] => show <nick>'s top artists%{p}") % { :p => period }
+    when :toptracks
+      _("lastfm toptracks [<nick>] [over <period>] => show <nick>'s top tracks%{p}") % { :p => period }
+    when :weeklyalbumchart
+      _("lastfm weeklyalbumchart [<nick>] => show <nick>'s weekly album chart")
+    when :weeklyartistchart
+      _("lastfm weeklyartistchart [<nick>] => show <nick>'s weekly artist chart")
+    when :weeklytrackchart
+      _("lastfm weeklyartistchart [<nick>] => show <nick>'s weekly track chart")
     else
-      _("lastfm [<user>] => show your or <user>'s now playing track at lastfm. np [<user>] => same as 'lastfm'. other topics: events, artist, album, now, set, who")
+      _("last.fm plugin - topics: events, artist, album, track, now, set, who, compare, shouts, friends, neighbors, (loved|recent)tracks, top(albums|tracks|artists), weekly(album|artist|track)chart")
     end
   end
 
@@ -91,24 +133,28 @@ class LastFmPlugin < Plugin
     num = params[:num] || @bot.config['lastfm.default_events']
     num = num.to_i.clip(1, @bot.config['lastfm.max_events'])
 
-    location = artist = nil
-    location = params[:location].to_s if params[:location]
-    artist = params[:who].to_s if params[:who]
+    location = params[:location]
+    artist = params[:who]
+    user = resolve_username(m, params[:user])
 
-    uri = nil
-    if artist == nil
-      uri = URI.escape("#{APIURL}method=geo.getevents&location=#{location}")
-    else
-      uri = URI.escape("#{APIURL}method=artist.getevents&artist=#{artist}")
+    if location
+      uri = "#{APIURL}method=geo.getevents&location=#{CGI.escape location.to_s}"
+      emptymsg = _("no events found in %{location}") % {:location => location.to_s}
+    elsif artist
+      uri = "#{APIURL}method=artist.getevents&artist=#{CGI.escape artist.to_s}"
+      emptymsg = _("no events found by %{artist}") % {:artist => artist.to_s}
+    elsif user
+      uri = "#{APIURL}method=user.getevents&user=#{CGI.escape user}"
+      emptymsg = _("%{user} is not attending any events") % {:user => user}
     end
     xml = @bot.httputil.get_response(uri)
 
     doc = Document.new xml.body
     if xml.class == Net::HTTPInternalServerError
-      if doc.root.attributes["status"] == "failed"
+      if doc.root and doc.root.attributes["status"] == "failed"
         m.reply doc.root.elements["error"].text
       else
-        m.reply _("Could not retrieve events")
+        m.reply _("could not retrieve events")
       end
     end
     disp_events = Array.new
@@ -119,16 +165,12 @@ class LastFmPlugin < Plugin
       venue = e.elements["venue"].elements["name"].text
       city = e.elements["venue"].elements["location"].elements["city"].text
       country =  e.elements["venue"].elements["location"].elements["country"].text
-      h[:location] = Bold + venue + Bold + " #{city}, #{country}"
+      h[:location] = Underline + venue + Underline + " #{Bold + city + Bold}, #{country}"
       date = e.elements["startDate"].text.split
       h[:date] = Time.utc(date[3].to_i, date[2], date[1].to_i)
       h[:desc] = e.elements["description"].text
       h[:url] = e.elements["url"].text
-      e.detect {|node|
-        if node.kind_of? Element and node.attributes["name"] == "attendance" then
-          h[:attendance] = node.text
-        end
-      }
+      h[:attendance] = e.elements["attendance"].text.to_i
       artists = Array.new
       e.elements.each("artists/artist"){ |a|
         artists << a.text
@@ -136,47 +178,42 @@ class LastFmPlugin < Plugin
       h[:artists] = artists
       events << LastFmEvent.new(h)
     }
+    if events.empty?
+      m.reply emptymsg
+      return
+    end
     events[0...num].each { |event|
       disp_events << event.to_s
     }
     m.reply disp_events.join(' | '), :split_at => /\s+\|\s+/
 
-  end  
+  end
 
   def tasteometer(m, params)
     opts = { :cache => false }
-    user1 = params[:user1].to_s
-    user2 = params[:user2].to_s
-    xml = @bot.httputil.get_response("#{APIURL}method=tasteometer.compare&type1=user&type2=user&value1=#{user1}&value2=#{user2}", opts)
+    user1 = resolve_username(m, params[:user1])
+    user2 = resolve_username(m, params[:user2])
+    xml = @bot.httputil.get_response("#{APIURL}method=tasteometer.compare&type1=user&type2=user&value1=#{CGI.escape user1}&value2=#{CGI.escape user2}", opts)
     doc = Document.new xml.body
     unless doc
       m.reply _("last.fm parsing failed")
       return
     end
-    if xml.class == Net::HTTPInternalServerError
-      if doc.root.elements["error"].attributes["code"] == "7" then 
+    if xml.class == Net::HTTPBadRequest
+      if doc.root.elements["error"].attributes["code"] == "7" then
         error = doc.root.elements["error"].text
         error.match(/Invalid username: \[(.*)\]/);
-        if @registry.has_key? $1 and not params[:recurs]
-          if user1 == $1
-            params[:user1] = @registry[ $1 ]
-          elsif user2 == $1
-            params[:user2] = @registry[ $1 ]
-          end
-          params[:recurs] = true
-          tasteometer(m, params)
-        else
-          m.reply _("%{u} doesn't exist at last.fm. Perhaps you need to: lastfm set <username>") % {:u => baduser}
-          return
-        end
+        baduser = $1
+
+        m.reply _("%{u} doesn't exist on last.fm") % {:u => baduser}
+        return
       else
-        m.reply _("Bad: %{e}") % {:e => doc.root.element["error"].text}
+        m.reply _("error: %{e}") % {:e => doc.root.element["error"].text}
         return
       end
     end
-    now = artist = track = albumtxt = date = nil
     score = doc.root.elements["comparison/result/score"].text.to_f
-    rating = nil
+    artists = doc.root.get_elements("comparison/result/artists/artist").map { |e| e.elements["name"].text}
     case
       when score >= 0.9
         rating = _("Super")
@@ -191,37 +228,38 @@ class LastFmPlugin < Plugin
       else
         rating = _("Very Low")
     end
-    m.reply _("%{a}'s and %{b}'s musical compatibility rating is: %{r}") % {:a => user1, :b => user2, :r => rating}
+
+    reply = _("%{a}'s and %{b}'s musical compatibility rating is %{bold}%{r}%{bold}") % {
+      :a => user1,
+      :b => user2,
+      :r => rating.downcase,
+      :bold => Bold
+    }
+
+    reply << _(" and music they have in common includes: %{artists}") % {
+      :artists => artists.join(", ")
+    } unless artists.empty?
+
+    m.reply reply
   end
 
   def now_playing(m, params)
     opts = { :cache => false }
-    user = nil
-    if params[:who]
-      user = params[:who].to_s
-    elsif @registry.has_key? m.sourcenick
-      user = @registry[ m.sourcenick ]
-    else
-      user = m.sourcenick
-    end
-    xml = @bot.httputil.get_response("#{APIURL}method=user.getrecenttracks&user=#{user}", opts)
+    user = resolve_username(m, params[:who])
+    xml = @bot.httputil.get_response("#{APIURL}method=user.getrecenttracks&user=#{CGI.escape user}", opts)
     doc = Document.new xml.body
     unless doc
       m.reply _("last.fm parsing failed")
       return
     end
     if xml.class == Net::HTTPBadRequest
-      if doc.root.elements["error"].text == "Invalid user name supplied" then 
-        if @registry.has_key? user and not params[:recurs]
-          params[:who] = @registry[ user ]
-          params[:recurs] = true
-          now_playing(m, params)
-        else
-          m.reply "#{user} doesn't exist at last.fm. Perhaps you need to: lastfm set <username>"
-          return
-        end
+      if doc.root.elements["error"].text == "Invalid user name supplied" then
+        m.reply _("%{user} doesn't exist on last.fm, perhaps they need to: lastfm user <username>") % {
+          :user => user
+        }
+        return
       else
-        m.reply _("Error %{e}") % {:e => doc.root.element["error"].text}
+        m.reply _("error: %{e}") % {:e => doc.root.element["error"].text}
         return
       end
     end
@@ -240,46 +278,103 @@ class LastFmPlugin < Plugin
       year = get_album(artist, albumtxt)[2]
       album = "[#{albumtxt}, #{year}] " if year
     end
-    date = first.elements["date"].attributes["uts"]
-    past = Time.at(date.to_i)
+    past = nil
+    date = XPath.first(first, "//date")
+    if date != nil
+      time = date.attributes["uts"]
+      past = Time.at(time.to_i)
+    end
     if now == "true"
-       verb = _("listening")
+       verb = _("is listening to")
        if @registry.has_key? "#{m.sourcenick}_verb_present"
          verb = @registry["#{m.sourcenick}_verb_present"]
        end
-      m.reply _("%{u} is %{v} to \"%{t}\" by %{a} %{b}") % {:u => user, :v => verb, :t => track, :a => artist, :b => album}
+       m.reply _("%{u} %{v} \"%{t}\" by %{a} %{b}") % {:u => user, :v => verb, :t => track, :a => artist, :b => album}
     else
-      verb = _("listened")
+      verb = _("listened to")
        if @registry.has_key? "#{m.sourcenick}_verb_past"
          verb = @registry["#{m.sourcenick}_verb_past"]
        end
       ago = Utils.timeago(past)
-      m.reply _("%{u} %{v} to \"%{t}\" by %{a} %{b}%{p}") % {:u => user, :v => verb, :t => track, :a => artist, :b => album, :p => ago}
+      m.reply _("%{u} %{v} \"%{t}\" by %{a} %{b}%{p}") % {:u => user, :v => verb, :t => track, :a => artist, :b => album, :p => ago}
     end
   end
 
   def find_artist(m, params)
-    xml = @bot.httputil.get(URI.escape("#{APIURL}method=artist.getinfo&artist=#{params[:artist]}"))
+    info_xml = @bot.httputil.get("#{APIURL}method=artist.getinfo&artist=#{CGI.escape params[:artist].to_s}")
+    unless info_xml
+      m.reply _("I had problems getting info for %{a}") % {:a => params[:artist]}
+      return
+    end
+    info_doc = Document.new info_xml
+    unless info_doc
+      m.reply _("last.fm parsing failed")
+      return
+    end
+    tags_xml = @bot.httputil.get("#{APIURL}method=artist.gettoptags&artist=#{CGI.escape params[:artist].to_s}")
+    tags_doc = Document.new tags_xml
+
+    first = info_doc.root.elements["artist"]
+    artist = first.elements["name"].text
+    url = first.elements["url"].text
+    stats = {}
+    %w(playcount listeners).each do |e|
+      t = first.elements["stats/#{e}"].text
+      stats[e.to_sym] = t.gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1,")
+    end
+    summary = first.elements["bio"].elements["summary"].text
+    similar = first.get_elements("similar/artist").map { |a|
+      _("%{b}%{a}%{b}") % { :a => a.elements["name"].text, :b => Bold } }
+    tags = tags_doc.root.get_elements("toptags/tag")[0..4].map { |t|
+      _("%{u}%{t}%{u}") % { :t => t.elements["name"].text, :u => Underline } }
+    reply = _("%{b}%{a}%{b} <%{u}> has been played %{b}%{c}%{b} times and is being listened to by %{b}%{l}%{b} people") % {
+      :b => Bold, :a => artist, :u => url, :c => stats[:playcount], :l => stats[:listeners] }
+    reply << _(". Tagged as: %{t}") % {
+      :t => tags.join(", "), :b => Bold } unless tags.empty?
+    reply << _(". Similar artists: %{s}") % {
+      :s => similar.join(", "), :b => Bold } unless similar.empty?
+    m.reply reply
+    m.reply summary.ircify_html
+  end
+
+  def find_track(m, params)
+    track = params[:track].to_s
+    xml = @bot.httputil.get("#{APIURL}method=track.search&track=#{CGI.escape track}")
     unless xml
-      m.reply _("I had problems getting info for %{a}.") % {:a => params[:artist]}
+      m.reply _("I had problems getting info for %{a}") % {:a => track}
       return
     end
+    debug xml
     doc = Document.new xml
     unless doc
       m.reply _("last.fm parsing failed")
       return
     end
-    first = doc.root.elements["artist"]
-    artist = first.elements["name"].text
-    playcount = first.elements["stats"].elements["plays"].text
-    listeners = first.elements["stats"].elements["listeners"].text
-    summary = first.elements["bio"].elements["summary"].text
-    m.reply _("\"%{a}\" has been played %{c} times and is being listened to by %{l} people.") % {:a => artist, :c => playcount, :l => listeners}
-    m.reply summary.strip
+    debug doc.root
+    results = doc.root.elements["results/opensearch:totalResults"].text.to_i rescue 0
+    if results > 0
+      begin
+        hits = []
+        doc.root.each_element("results/trackmatches/track") do |track|
+          hits << _("%{bold}%{t}%{bold} by %{bold}%{a}%{bold} (%{n} listeners)") % {
+            :t => track.elements["name"].text,
+            :a => track.elements["artist"].text,
+            :n => track.elements["listeners"].text,
+            :bold => Bold
+          }
+        end
+        m.reply hits.join(' -- '), :split_at => ' -- '
+      rescue
+        error $!
+        m.reply _("last.fm parsing failed")
+      end
+    else
+      m.reply _("track %{a} not found") % {:a => track}
+    end
   end
 
   def get_album(artist, album)
-    xml = @bot.httputil.get(URI.escape("#{APIURL}method=album.getinfo&artist=#{artist}&album=#{album}"))
+    xml = @bot.httputil.get("#{APIURL}method=album.getinfo&artist=#{CGI.escape artist}&album=#{CGI.escape album}")
     unless xml
       return [_("I had problems getting album info")]
     end
@@ -293,7 +388,7 @@ class LastFmPlugin < Plugin
     playcount = first.elements["playcount"].text
     album = first.elements["name"].text
     date = first.elements["releasedate"].text
-    unless date.strip.length < 2 
+    unless date.strip.length < 2
       year = date.strip.split[2].chop
     end
     result = [artist, album, year, playcount]
@@ -307,14 +402,14 @@ class LastFmPlugin < Plugin
       return
     end
     year = "(#{album[2]}) " unless album[2] == nil
-    m.reply _("The album \"%{a}\" by %{r} %{y}has been played %{c} times.") % {:a => album[1], :r => album[0], :y => year, :c => album[3]}
+    m.reply _("the album \"%{a}\" by %{r} %{y}has been played %{c} times") % {:a => album[1], :r => album[0], :y => year, :c => album[3]}
   end
 
   def set_user(m, params)
     user = params[:who].to_s
     nick = m.sourcenick
     @registry[ nick ] = user
-    m.reply _("Ok, I'll remember that %{n} is %{u} at last.fm") % {:n => nick, :u => user}
+    m.reply _("okay, I'll remember that %{n} is %{u} on last.fm") % {:n => nick, :u => user}
   end
 
   def set_verb(m, params)
@@ -323,70 +418,217 @@ class LastFmPlugin < Plugin
     key = "#{m.sourcenick}_verb_"
     @registry[ "#{key}past" ] = past
     @registry[ "#{key}present" ] = present
-    m.reply _("Ok, I'll remember that %{n} prefers %{r} and %{p}.") % {:n => m.sourcenick, :p => past, :r => present}
+    m.reply _("okay, I'll remember that %{n} prefers \"%{r}\" and \"%{p}\"") % {:n => m.sourcenick, :p => past, :r => present}
   end
 
   def get_user(m, params)
     nick = ""
     if params[:who]
       nick = params[:who].to_s
-    else 
+    else
       nick = m.sourcenick
     end
     if @registry.has_key? nick
       user = @registry[ nick ]
-      m.reply "#{nick} is #{user} at last.fm"
+      m.reply _("%{nick} is %{user} on last.fm") % {
+        :nick => nick,
+        :user => user
+      }
     else
-      m.reply _("Sorry, I don't know who %{n} is at last.fm perhaps you need to: lastfm set <username>") % {:n => nick}
+      m.reply _("sorry, I don't know who %{n} is on last.fm, perhaps they need to: lastfm set user <username>") % {:n => nick}
     end
   end
 
-  # TODO this user data retrieval should be upgraded to API 2.0 but it would need separate parsing
-  # for each dataset, or almost
   def lastfm(m, params)
-    action = params[:action].intern
-    action = :neighbours if action == :neighbors
-    action = :recenttracks if action == :recentracks
-    action = :topalbums if action == :topalbum
-    action = :topartists if action == :topartist
-    action = :toptags if action == :toptag
-    user = nil
-    if params[:user] then
-      user = params[:user].to_s
-    elsif @registry.has_key? m.sourcenick
-      user = @registry[ m.sourcenick ]
+    action = case params[:action]
+    when "neighbors" then "neighbours"
+    when "recentracks", "recent" then "recenttracks"
+    when "loved" then "lovedtracks"
+    when /^weekly(track|album|artist)s$/
+      "weekly#{$1}chart"
+    when "events"
+      find_events(m, params)
+      return
+    else
+      params[:action]
+    end.to_sym
+
+    if action == :shouts
+      num = params[:num] || @bot.config['lastfm.default_shouts']
+      num = num.to_i.clip(1, @bot.config['lastfm.max_shouts'])
     else
-      # m.reply "I don't know who you are on last.fm. Use 'lastfm set username' to identify yourself."
-      # return
-      user = m.sourcenick
+      num = params[:num] || @bot.config['lastfm.default_user_data']
+      num = num.to_i.clip(1, @bot.config['lastfm.max_user_data'])
+    end
+
+    user = resolve_username(m, params[:user])
+    uri = "#{APIURL}method=user.get#{action}&user=#{CGI.escape user}"
+
+    if period = params[:period]
+      period_uri = (period.last == "year" ? "12month" : period.first + "month")
+      uri << "&period=#{period_uri}"
+    end
+
+    res = @bot.httputil.get_response(uri)
+    unless res.body
+      m.reply _("I had problems accessing last.fm")
+      return
     end
-    begin
-      data = @bot.httputil.get("http://ws.audioscrobbler.com/1.0/user/#{user}/#{action}.txt")
-      m.reply "#{action} for #{user}:"
-      m.reply data.to_a[0..3].map{|l| l.split(',',2)[-1].chomp}.join(", ")
-    rescue
-      m.reply "could not find #{action} for #{user} (is #{user} a user?). perhaps you need to: lastfm set <username>"
+    doc = Document.new(res.body)
+    unless doc
+      m.reply _("last.fm parsing failed")
+      return
+    end
+
+    case res
+    when Net::HTTPBadRequest
+      if doc.root and doc.root.attributes["status"] == "failed"
+        m.reply "error: " << doc.root.elements["error"].text.downcase
+      end
+      return
+    end
+
+    seemore =  _("; see %{uri} for more")
+    case action
+    when :friends
+      friends = doc.root.get_elements("friends/user").map do |u|
+        u.elements["name"].text
+      end
+
+      if friends.empty?
+        reply = _("%{user} has no friends :(")
+      elsif friends.length <= num
+        reply = _("%{user} has %{total} friends: %{friends}")
+      else
+        reply = _("%{user} has %{total} friends, including %{friends}")
+        reply << seemore
+      end
+      m.reply reply % {
+        :user => user,
+        :total => friends.size,
+        :friends => friends.shuffle[0, num].join(", "),
+        :uri => "http://www.last.fm/user/#{CGI.escape user}/friends"
+      }
+    when :lovedtracks
+      loved = doc.root.get_elements("lovedtracks/track").map do |track|
+        [track.elements["artist/name"].text, track.elements["name"].text].join(" - ")
+      end
+      loved_prep = loved.shuffle[0, num].to_enum(:each_with_index).collect { |e,i| (i % 2).zero? ? Underline+e+Underline : e }
+
+      if loved.empty?
+        reply = _("%{user} has not loved any tracks")
+      elsif loved.length <= num
+        reply = _("%{user} has loved %{total} tracks: %{tracks}")
+      else
+        reply = _("%{user} has loved %{total} tracks, including %{tracks}")
+        reply << seemore
+      end
+      m.reply reply % {
+          :user => user,
+          :total => loved.size,
+          :tracks => loved_prep.join(", "),
+          :uri => "http://www.last.fm/user/#{CGI.escape user}/library/loved"
+        }
+    when :neighbours
+      nbrs = doc.root.get_elements("neighbours/user").map do |u|
+        u.elements["name"].text
+      end
+
+      if nbrs.empty?
+        reply = _("no one seems to share %{user}'s musical taste")
+      elsif nbrs.length <= num
+        reply = _("%{user} musical neighbours are %{nbrs}")
+      else
+        reply = _("%{user} musical neighbours include %{nbrs}")
+        reply << seemore
+      end
+      m.reply reply % {
+          :user  => user,
+          :nbrs  => nbrs.shuffle[0, num].join(", "),
+          :uri   => "http://www.last.fm/user/#{CGI.escape user}/neighbours"
+      }
+    when :recenttracks
+      tracks = doc.root.get_elements("recenttracks/track").map do |track|
+        [track.elements["artist"].text, track.elements["name"].text].join(" - ")
+      end
+      tracks_prep = tracks[0, num].to_enum(:each_with_index).collect { |e,i| (i % 2).zero? ? Underline+e+Underline : e }
+
+      if tracks.empty?
+        m.reply _("%{user} hasn't played anything recently") % { :user => user }
+      else
+        m.reply _("%{user} has recently played %{tracks}") %
+          { :user => user, :tracks => tracks_prep.join(", ") }
+      end
+    when :shouts
+      shouts = doc.root.get_elements("shouts/shout")
+      if shouts.empty?
+        m.reply _("there are no shouts for %{user}") % { :user => user }
+      else
+        shouts[0, num].each do |shout|
+          m.reply _("<%{author}> %{body}") % {
+            :body   => shout.elements["body"].text,
+            :author => shout.elements["author"].text,
+          }
+        end
+      end
+    when :toptracks, :topalbums, :topartists, :weeklytrackchart, :weeklyalbumchart, :weeklyartistchart
+      type  = action.to_s.scan(/track|album|artist/).to_s
+      items = doc.root.get_elements("#{action}/#{type}").map do |item|
+        case action
+        when :weeklytrackchart, :weeklyalbumchart
+          format = "%{artist} - %{title} (%{bold}%{plays}%{bold})"
+          artist = item.elements["artist"].text
+        when :weeklyartistchart, :topartists
+          format = "%{artist} (%{bold}%{plays}%{bold})"
+          artist = item.elements["name"].text
+        when :toptracks, :topalbums
+          format = "%{artist} - %{title} (%{bold}%{plays}%{bold})"
+          artist = item.elements["artist/name"].text
+        end
+
+        _(format) % {
+          :artist => artist,
+          :title  => item.elements["name"].text,
+          :plays  => item.elements["playcount"].text,
+          :bold   => Bold
+        }
+      end
+      if items.empty?
+        m.reply _("%{user} hasn't played anything in this period of time") % { :user => user }
+      else
+        m.reply items[0, num].join(", ")
+      end
     end
   end
+
+  def resolve_username(m, name)
+    name = m.sourcenick if name.nil?
+    @registry[name] or name
+  end
 end
 
 plugin = LastFmPlugin.new
 plugin.map 'lastfm [:num] event[s] in *location', :action => :find_events, :requirements => { :num => /\d+/ }, :thread => true
 plugin.map 'lastfm [:num] event[s] by *who', :action => :find_events, :requirements => { :num => /\d+/ }, :thread => true
 plugin.map 'lastfm [:num] event[s] [for] *who', :action => :find_events, :requirements => { :num => /\d+/ }, :thread => true
-plugin.map 'lastfm now :who', :action => :now_playing, :thread => true
-plugin.map 'lastfm now', :action => :now_playing, :thread => true
-plugin.map 'np :who', :action => :now_playing, :thread => true
 plugin.map 'lastfm artist *artist', :action => :find_artist, :thread => true
 plugin.map 'lastfm album *album [by *artist]', :action => :find_album
-plugin.map 'lastfm set nick :who', :action => :set_user, :thread => true
-plugin.map 'lastfm set verb :present :past', :action => :set_verb, :thread => true
-plugin.map 'lastfm who :who', :action => :get_user, :thread => true
-plugin.map 'lastfm who', :action => :get_user, :thread => true
-plugin.map 'lastfm compare :user1 :user2', :action => :tasteometer, :thread => true
-plugin.map 'np', :action => :now_playing, :thread => true
-plugin.map 'lastfm', :action => :now_playing, :thread => true
-plugin.map "lastfm [user] :action [:user]", :thread => true,
-  :requirements => { :action =>
-    /^(?:events|friends|neighbou?rs|playlists|recent?tracks|top(?:album|artist|tag)s?|weekly(?:album|artist|track)chart|weeklychartlist)$/
+plugin.map 'lastfm track *track', :action => :find_track, :thread => true
+plugin.map 'lastfm set user[name] :who', :action => :set_user, :thread => true
+plugin.map 'lastfm set verb *present, *past', :action => :set_verb, :thread => true
+plugin.map 'lastfm who [:who]', :action => :get_user, :thread => true
+plugin.map 'lastfm compare to :user2', :action => :tasteometer, :thread => true
+plugin.map 'lastfm compare [:user1] [to] :user2', :action => :tasteometer, :thread => true
+plugin.map "lastfm [user] [:num] :action [:user]", :thread => true,
+  :requirements => {
+    :action => /^(?:events|shouts|friends|neighbou?rs|loved(?:tracks)?|recent(?:t?racks)?|top(?:album|artist|track)s?|weekly(?:albums?|artists?|tracks?)(?:chart)?)$/,
+    :num => /^\d+$/
+}
+plugin.map 'lastfm [user] [:num] :action [:user] over [*period]', :thread => true,
+  :requirements => {
+    :action => /^(?:top(?:album|artist|track)s?)$/,
+    :period => /^(?:(?:3|6|12) months)|(?:a\s|1\s)?year$/,
+    :num => /^\d+$/
 }
+plugin.map 'lastfm [now] [:who]', :action => :now_playing, :thread => true
+plugin.map 'np [:who]', :action => :now_playing, :thread => true