Class: Imine

Inherits:
Object
  • Object
show all
Defined in:
lib/imine.rb

Constant Summary collapse

VERSION = 
'0.1.3'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, counter = 0) ⇒ Imine

Returns a new instance of Imine.



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# File 'lib/imine.rb', line 18

def initialize(file, counter = 0)
  @tracks = get_tracks(file, counter)
end

Instance Attribute Details

#tracks ⇒ Object

Returns the value of attribute tracks.



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# File 'lib/imine.rb', line 12

def tracks
  @tracks
end

Class Method Details

.run(args) ⇒ Object 



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# File 'lib/imine.rb', line 14

def self.run(args)
  miner = Imine.new(args.first)
end

Instance Method Details

#count_by_field(name) ⇒ Object 



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# File 'lib/imine.rb', line 64

def count_by_field (name)
  @tracks.map {|track| track.send(name).downcase}.uniq.size
end

#get_stars(rate, format = :integer) ⇒ Object 



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# File 'lib/imine.rb', line 104

def get_stars(rate, format = :integer)
  rating = rate.to_i / 20
  case format
  when :integer
    return rating
  when :visual
    return "*" * rating
  end
end

#get_tracks(file, counter) ⇒ Object 



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# File 'lib/imine.rb', line 22

def get_tracks(file, counter)
  doc = Nokogiri::XML(File.read(file))
  tracks = []
  count = 0
  ecount = 0
  elipses = "   "
  doc.xpath('//dict/dict/dict').each do |d|
    info = {}
    # Begin superfluous counting code
    case counter
    when 1
      if count % 200 == 0
        if ecount == 4
          ecount = 0
          elipses = "   "
        end
      end
      count += 1
      print "\rProcessing#{elipses} " + bold("#{count}")
      if count % 200 == 0
        elipses[ecount] = "." unless ecount > 2
        ecount += 1
      end
      STDOUT.flush
    else
    end
    # End superfluous counting code
    d.xpath('key').each do |item|
      key = item.inner_text.downcase.gsub(" ", "_").to_sym
      case item.next.name
      when "integer"  ; value = item.next.inner_text.to_i
      when "date"     ; value = Time.parse(item.next.inner_text)
      else            ; value = item.next.inner_text
      end
      info[key] = value
    end
    tracks << Track.new(info)
  end
  puts negative("\r     DONE     ") + "#{" " * 30}\n\n\n" if counter == 1
  return tracks
end

#most_played(n = 10) ⇒ Object 



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# File 'lib/imine.rb', line 80

def most_played(n = 10)
  return @tracks.sort_by {|track| -track.play_count.to_i}.map do 
    |track| [track.name, track.play_count, track.rating.to_i, track.artist]
  end.first(n)
end

#number_of_albums ⇒ Object 



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# File 'lib/imine.rb', line 68

def number_of_albums
  count_by_field :album
end

#number_of_artists ⇒ Object 



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# File 'lib/imine.rb', line 72

def number_of_artists
  count_by_field :artist
end

#number_of_tracks ⇒ Object 



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# File 'lib/imine.rb', line 76

def number_of_tracks
  @tracks.size
end

#top_year ⇒ Object 



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# File 'lib/imine.rb', line 95

def top_year
  years = Hash.new 0
  @tracks.each do |track|
    years[track.year] += 1
  end
  years.delete("") unless years.size == 1
  return years.sort_by {|year, count| -count}.first.first
end

#total_playtime ⇒ Object 



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# File 'lib/imine.rb', line 86

def total_playtime
  playtime = 0
  @tracks.each do |track|
    next if track.total_time == ""
    playtime += track.total_time
  end
  return playtime
end