Silly Rubyness

songs.rb

 # 5 songs of the following lengths in seconds
   class Song
     attr_accessor :duration

     def initialize(duration=0)
       @duration = duration
     end 
   end 

 # 223,215,378,324,254

 # Goals:
 # Assign the lenght set to variables
 songs = []
 songs << Song.new(223)
 songs << Song.new(215)
 songs << Song.new(378)
 songs << Song.new(324)
 songs << Song.new(254)

 class Playlist

   def initialize(songs=[])
     @songs = songs
   end 
 # Calculate the Total Length of the Playlists
   def length_in_seconds
     @songs.map(&:duration).inject(:+)
   end 
   # Express the Length in Minutes
   def length_in_minutes
     parsed_time = convert_seconds_to_minutes(length_in_seconds)
     pretty_output parsed_time
   end 

   # Average Song Length in Minutes
   def average_length_in_minutes
     average_in_seconds = length_in_seconds / @songs.count
     parsed_time = convert_seconds_to_minutes(average_in_seconds)
     pretty_output parsed_time
   end 
   # Add a 2 Second Gap In Between Songs
   def length_with_gap(gap=2)
     total_pause_length = (@songs.count * gap) - gap 
     length_in_seconds + total_pause_length
   end 

   private

   def convert_seconds_to_minutes(seconds)
     time = {}
     time[:minutes] = seconds / 60
     time[:seconds] = seconds % 60
     time
   end 

   def pretty_output parsed_time
     "#{parsed_time[:minutes]} minutes and #{parsed_time[:seconds]} seconds"
   end 
 end 

 playlist = Playlist.new(songs)

 puts "Current total length of the playlist in seconds: #{playlist.length_in_seconds}"
 puts "Total length in minutes: #{playlist.length_in_minutes}"
 puts "Average song length in minutes: #{playlist.average_length_in_minutes}"
 puts "Total songs length with 2 second gap in seconds: #{playlist.length_with_gap(2)}"