class Lolink

# File lib/lolink.rb, line 64
def self.aria2(links)
  system "aria2c --force-sequential=true --continue=true #{links.join(' ')}"
end

# File lib/lolink.rb, line 8
def initialize(v=nil)
  @base_url = "http://down.qq.com/lol"
  if v
    self.versions = v
  else
    parse_version
  end
end

# File lib/lolink.rb, line 48
def full_links
  files = ["http://dlied1.qq.com/lol/full/#{version_number}/LOL_#{version}_FULL.exe"]

  files += test_link do |i|
    "http://dlied1.qq.com/lol/full/#{version_number}/LOL_#{version}_FULL.7z.#{i}"
  end
end

# File lib/lolink.rb, line 21
def parse_version
  @doc = Nokogiri::HTML(open("http://lol.qq.com/download.shtml"))

  link = @doc.search('.downlst.fl a#xzq').first.attr('href')

  @versions = link.match(/(V.+-V.+)_PATCH/)[1]
end

# File lib/lolink.rb, line 56
def patch_links
  files = ["#{@base_url}/patch/#{version_number}/LOL_#{versions}_PATCH.exe"]

  files += test_link do |i|
    "#{@base_url}/patch/#{version_number}/LOL_#{version}_PATCH.7z.#{i}"
  end
end

# File lib/lolink.rb, line 29
def test_link
  i = 0
  links = []
  loop do
    i+=1
    link = yield('%.3d' % i)
    if HTTP.follow.head(link).code == 404
      break
    else
      links << link
    end
  end
  links
end

# File lib/lolink.rb, line 17
def version
  @version ||= @versions.split('-').last
end

# File lib/lolink.rb, line 44
def version_number
  version.gsub /[^\d]/, ''
end