class PhraseLookup

# File lib/phrase_lookup.rb, line 14
def initialize(obj=nil, debug: false)  
  
  @debug = debug

  @master = if obj then
    
    if obj.is_a? String then
      
      s = RXFHelper.read(obj).first
      
      if s.lstrip =~ /^---/ then # it's YAML
        
        Master.new( YAML.load(s))
        
      elsif s =~ /: /   # it's the contents of a log file
        
        m = Master.new
        m.create s
        m
        
      else   # it's plain text
        
        m = Master.new
        m.create_from_txt s
        m
        
      end
      
    elsif obj.is_a? Array
      
      puts 'array detected' if @debug
      
      m = Master.new
      m.parse_array obj
      m
      
    else
      Master.new obj
    end
    
  end
  

end

# File lib/phrase_lookup.rb, line 123
def lookup(s, limit: 10, search_tags: false)
  
  return [] if s.empty?
  
  h = @master.to_h
  a = h.keys
  
  a3 = if search_tags then
    a.grep /\].*(?:\b#{s}\b|\b#{s}).*\|.*(?:\b#{s}\b|\b#{s})/i
  else
    a1, a2 = [/^#{s}/i, /\b#{s}/i].map do |regex|
      a.select {|x| x.gsub(/\[[^\]]*\]/,'').gsub(/\([^\)]*\)/,'') =~ regex}
    end
    (a1 + a2)
  end

  return a3.sort_by {|word| -h[word]}.map {|x| x.sub(/ +\|.*$/,'')}\
      .uniq.take(limit)        
  
end

# File lib/phrase_lookup.rb, line 146
def master()
  @master
end

# File lib/phrase_lookup.rb, line 150
def save(filename='phrase_lookup.yaml')
  @master.save filename
end