Add shows command

README.md

@@ -61,6 +61,31 @@ Like an old gray cat in winter, keepin' close to the wall
 
 ```
 
+### Shows
+
+Upcoming events are served via [last.fm/api][]
+
+```
+~ rdio current
+Now playing: That Old Time Feeling / Rodney Crowell / This One's for Him: A Tribute to Guy Clark
+
+~ rdio shows
+Here are 10 upcoming events for Rodney Crowell
+Toronto             Canada          Fri, 22 Mar 2013 20:00:00 
+North Bethesda, MD  United States   Fri, 29 Mar 2013 19:30:00 
+London              United Kingdom  Thu, 09 May 2013 20:00:00 
+Birmingham          United Kingdom  Fri, 10 May 2013 16:16:01 
+Belfast             Ireland         Sun, 12 May 2013 19:30:00 
+Dublin              Ireland         Mon, 13 May 2013 20:00:00 
+Brussels            Belgium         Mon, 20 May 2013 13:20:01 
+Paris               France          Wed, 22 May 2013 20:00:00 
+København C         Denmark         Sun, 26 May 2013 20:00:00 
+Berlin              Germany         Thu, 30 May 2013 00:38:01
+
+~ rdio shows --artist="Johnny Cash"
+No upcoming events for Johnny Cash
+```
+
 ### Full usage help
 
 ```
@@ -96,6 +121,7 @@ COMMANDS
     play            - Plays the current track
     previous, prev  - Play previous track
     quit, q         - Quit Rdio
+    shows           - Show upcoming events for an artist
     snag            - Add the current track or album to your collection
     toggle          - Toggle playback
     user            - Show the current Rdio user
@@ -125,3 +151,4 @@ Copyright (c) 2012 Wynn Netherland. See [LICENSE][] for details.
 [node-rdio]: https://github.com/dstokes/rdio-cli
 [GLI]: https://github.com/davetron5000/gli
 [makeitpersonal.co]: http://makeitpersonal.co
+[last.fm/api]: http://www.last.fm/api

lib/rdio.rb

@@ -46,6 +46,46 @@ def self.lyrics_for(artist, title)
     return res.body
   end
 
+  def self.shows_for(artist, count)
+    uri = URI('http://ws.audioscrobbler.com/2.0')
+    params = { :method => 'artist.getEvents', :artist => artist, :limit => count, :format => 'json', :autocorrect => 1, :api_key => '3c3e4b39c2aedcac5d745c70a898ee76' }
+    uri.query = URI.encode_www_form(params)
+    res = Net::HTTP.get_response(uri)
+
+    json = JSON.parse(res.body)
+    return "Sorry, I’ve never heard of #{artist}" if json['error'] == 6
+
+    events = json['events']['event']
+    events = [events] if events.is_a?(Hash)
+    return "No upcoming events for #{artist}" if !events
+
+    corrected_artist_name = json['events']['@attr']['artist']
+
+    cities = []
+    countries = []
+    events.each do |event|
+      cities << event['venue']['location']['city']
+      countries << event['venue']['location']['country']
+    end
+
+    longest_city = cities.inject { |a, b| a.length > b.length ? a : b }
+    longest_country = countries.inject { |a, b| a.length > b.length ? a : b }
+
+    events.map! do |event|
+      location = event['venue']['location']
+
+      city = location['city']
+      city_spaces = (0..longest_city.length - city.length).map{' '}.join('')
+
+      country = location['country']
+      country_spaces = (0..longest_country.length - country.length).map{' '}.join('')
+
+      "#{city}#{city_spaces} #{country}#{country_spaces} #{event['startDate']} #{event['startTime']}"
+    end
+
+    "Here are #{count} upcoming events for #{corrected_artist_name}\n#{events.join("\n")}\n"
+  end
+
   def self.rdio_config
     {
      :consumer_key    => @consumer_key,
@@ -229,6 +269,18 @@ def self.add_to_collection(tracks)
     end
   end
 
+  skips_pre
+  desc 'Show upcoming events for an artist'
+  command :shows do |c|
+    c.flag :artist
+    c.flag :count, :default_value => 10
+    c.action do |global_options,options,args|
+      artist = options[:artist] || bridge.current_artist
+      count = options[:count]
+      say shows_for(artist, count)
+    end
+  end
+
   ### Authenticated methods
 
   desc 'Show the current Rdio user'