Module: Natalia::JLyric

Defined in:
lib/natalia/services/j_lyric.rb

Class Method Summary collapse

Class Method Details

.get(id) ⇒ Object 



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# File 'lib/natalia/services/j_lyric.rb', line 96

def self.get(id)
  response = Natalia::Utils.curl_get("https://j-lyric.net/artist/#{id}.html")
  response.value

  doc = Nokogiri::HTML.parse(response.body)

  smls = doc.css('div#mnb div.lbdy p.sml')

  ret = {
    source: self,
    id: id,
    title: doc.at_css('div#mnb div.cap h2').content.match(/\A「(.+)」歌詞\z/)[1],
    artist: smls[0].at_css('a').content,
    artist_id: smls[0].at_css('a')['href'].match(%r{/artist/(.+)/\z})[1]
  }

  smls[1..].each do |e|
    content = e.content
    ret[:lyricist] = content.match(/作詞：(.+)/)[1] if content.start_with?('作詞：')
    ret[:composer] = content.match(/作曲：(.+)/)[1] if content.start_with?('作曲：')
  end

  ret[:lyrics] = doc.at_css('p#Lyric').children.map do |e|
    e.name == 'br' ? "\n" : e.content
  end.join.strip

  ret
end

.search(keyword, type: :title, sort: :popularity_desc) ⇒ Object

sort という概念はないっぽい



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# File 'lib/natalia/services/j_lyric.rb', line 10

def self.search(keyword, type: :title, sort: :popularity_desc)
  case type
  when :title
    search_by_title(keyword)
  when :artist
    search_by_artist(keyword, sort: sort)
  else
    raise ArgumentError, "unsupported search type `#{type}`"
  end
end

.search_by_artist(artist_id, sort: :popularity_desc) ⇒ Object 



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# File 'lib/natalia/services/j_lyric.rb', line 54

def self.search_by_artist(artist_id, sort: :popularity_desc)
  response = Natalia::Utils.curl_get("https://j-lyric.net/artist/#{artist_id}/")
  response.value

  doc = Nokogiri::HTML.parse(response.body)
  artist_name = doc.at_css('div#mnb div.cnt div.cap h2').content.match(/\A(.+)の歌詞リスト\z/)[1]
  table = doc.css('div#bas div#cnt div#mnb div.bdy[id^=ly]')

  entries = table.map do |row|
    order, date, popularity = row.css('input[type=hidden]').map {|e| e['value']}
    {
      source: self,
      id: row.at_css('p.ttl a')['href'].match(%r{/artist/(.+)\.html\z})[1],
      title: row.at_css('p.ttl a').content,
      artist: artist_name,
      artist_id: artist_id,
      order: order.to_i,
      date: Time.parse("#{date} JST"),
      popularity: -popularity.to_i
    }
  end.compact

  case sort
  when :title
    entries.sort_by {|e| e[:order]}
  when :title_desc
    entries.sort_by {|e| -e[:order]}
  when :popularity
    entries.sort_by {|e| e[:popularity]}
  when :popularity_desc
    entries.sort_by {|e| -e[:popularity]}
  when :date
    entries.sort_by {|e| e[:date]}
  when :date_desc
    entries.sort_by {|e| -e[:date].to_i}
  when :artist, :artist_desc
    entries
  else
    raise ArgumentError, "unsupported sort type `#{sort}`"
  end
end

.search_by_title(keyword) ⇒ Object 



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# File 'lib/natalia/services/j_lyric.rb', line 21

def self.search_by_title(keyword)
  entries = []
  (1..).each do |page|
    response =
      Natalia::Utils.curl_get('https://search3.j-lyric.net/index.php', {
                                kt: keyword,
                                ct: '2', # kt 検索方法 (0: 前方, 1: 完全, 2: 中間, 3: 後方)
                                search: '検索', # 謎
                                ex: 'on', # 謎
                                ca: '2', # ka 検索方法
                                cl: '2', # kl 検索方法
                                p: page
                              })
    response.value

    doc = Nokogiri::HTML.parse(response.body)
    table = doc.css('div#bas div#cnt div#mnb > div.bdy')
    break if table.empty?

    table.each do |body|
      entries << {
        source: self,
        id: body.at_css('p.mid a')['href'].match(%r{/artist/(.+)\.html\z})[1],
        title: body.at_css('p.mid a').content,
        artist: body.css('p.sml')[0].at_css('a').content,
        artist_id: body.css('p.sml')[0].at_css('a')['href'].match(%r{/artist/(.+)/\z})[1]
      }
    end
  end

  entries
end