Class: Spot

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Spot

Returns a new instance of Spot.



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/spot.rb', line 14

def initialize
  @methods = {
    :artists => {
      :selector => :artists,
      :class    => SpotContainer::Artist,
      :url      => generate_url("artist")
    }, 
    :songs => {
      :selector => :tracks,
      :class    => SpotContainer::Song,
      :url      => generate_url("track")
    },
    :albums => {
      :selector => :albums,
      :class    => SpotContainer::Album,
      :url      => generate_url("album")
    }
  }
  
  @cache = {}
  
  @exclude = YAML.load(File.read("#{File.dirname(__FILE__)}/spot/exclude.yml"))
  
  @config = {
    :exclude    => 2,
    :popularity => 7,
    :limit      => 0.7,
    :offset     => 10
  }
  
  @options = {}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &blk) ⇒ Object 



51
52
53
54
55
56
57
58
59
 
# File 'lib/spot.rb', line 51

def method_missing(method, *args, &blk)
  if method.to_s =~ /^find(_all)?_([a-z]+)$/i 
    find($2, !!$1, args.first)
  elsif scrape and content["info"].keys.include?(method.to_s)
     content["info"][method.to_s]
  else
    super(method, *args, &blk)
  end
end

Class Method Details

.method_missing(method, *args, &blk) ⇒ Object 



47
48
49
 
# File 'lib/spot.rb', line 47

def self.method_missing(method, *args, &blk)
  Spot.new.send(method, *args, &blk)
end

Instance Method Details

#clean!(string) ⇒ Object 



136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
 
# File 'lib/spot.rb', line 136

def clean!(string)
  string.strip!
  
  # Song - A + B + C => Song - A
  # Song - A abc/def => Song - A abc
  # Song - A & abc def => Song - A
  # Song - A "abc def" => Song - A
  # Song - A [B + C] => Song - A
  # Song A B.mp3 => Song A B
  # Song a.b.c.d.e => Song a b c d e
  # 10. Song => Song
  [/\.[a-z0-9]{2,3}$/, /\[[^\]]*\]/,/".*"/, /'.*'/, /[&|\/|\+][^\z]*/, /^(\d+.*?[^a-z]+?)/i].each do |reg|
    string = string.gsub(reg, '').strip
  end
  
  [/\(.+?\)/m, /feat(.*?)\s*[^\s]+/i, /[-]+/, /[\s]+/m, /\./, /\_/].each do |reg|
     string = string.gsub(reg, ' ').strip
  end
  
  {"ä" => "a", "å" => "a", "ö" => "o"}.each do |from, to|
    string.gsub!(/#{from}/i, to)
  end
  
  string.gsub(/\A\s|\s\z/, '').gsub(/\s+/, ' ').strip.downcase
rescue Encoding::CompatibilityError
  return string
end

#exclude?(compare) ⇒ Boolean

Returns:

  • (Boolean) 


164
165
166
 
# File 'lib/spot.rb', line 164

def exclude?(compare)
  @exclude.map { |value| !! compare.match(/#{value}/i) }.any?
end

#find(type, all, s) ⇒ Object 



73
74
75
76
77
78
79
 
# File 'lib/spot.rb', line 73

def find(type, all, s)
  tap {
    @search = s
    @type = all ? type.to_sym : "#{type}s".to_sym
    raise NoMethodError.new(@type) unless @methods.keys.include?(@type)
  }
end

#page(value) ⇒ Object 



61
62
63
 
# File 'lib/spot.rb', line 61

def page(value)
  tap { @page = value }
end

#prefix(value) ⇒ Object 



69
70
71
 
# File 'lib/spot.rb', line 69

def prefix(value)
  tap { @prefix = value }
end

#prime ⇒ Object 



65
66
67
 
# File 'lib/spot.rb', line 65

def prime
  tap { @prime = true }
end

#result ⇒ Object 



93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
 
# File 'lib/spot.rb', line 93

def result
  @prime ? results.sort_by do |res|
    res.popularity
  end.reverse[0..4].map do |r|
    song, artist = type_of(r)
    
    match = "#{song} #{artist}".split(" ")
    raw = clean!(search).split(" ")

    if raw.length < match.length
      diff = match - raw
      res = diff.length.to_f/match.length
    else
      diff = raw - match
      res = diff.length.to_f/raw.length
    end

    if diff.length > 1 and not match.map{ |m| diff.include?(m) }.all?
      res =+ diff.map do |value|
        match.map do |m|
          Levenshtein.distance(value, m)
        end.inject(:+)
      end.inject(:+) / @config[:offset]
    end
    
    [res - r.popularity/@config[:popularity], r]
  end.reject do |distance, value|
    exclude?(value.to_s) or not value.valid?
  end.sort_by do |distance, _|
    distance
  end.map(&:last).first : results.first
end

#results ⇒ Object 



81
82
83
 
# File 'lib/spot.rb', line 81

def results
  @_results ||= scrape
end

#strip ⇒ Object 



85
86
87
 
# File 'lib/spot.rb', line 85

def strip
  tap { @strip = true }
end

#territory(value) ⇒ Object 



89
90
91
 
# File 'lib/spot.rb', line 89

def territory(value)
  tap { @options.merge!(:territory => value) }
end

#type_of(r) ⇒ Object 



126
127
128
129
130
131
132
133
134
 
# File 'lib/spot.rb', line 126

def type_of(r)
  if @type == :songs
    return r.name.to_s, r.artist.name.to_s
  elsif @type == :artists
    return r.song.title.to_s, r.name.to_s
  else
    return "", r.artist.to_s
  end
end