Class: Contest

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url, **options) ⇒ Contest

Returns a new instance of Contest.



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# File 'lib/atcoder_greedy/lib/contest.rb', line 10

def initialize(url, **options)
  if options[:language] != ''
    @language = options[:language]
  else
    @language = AtcoderGreedy.config[:language]
  end
  @url = url

  set_agent
  set_contest_info(options[:problems])
  set_directories(options[:directory])

  create_inputs unless options[:no][:input]
  create_templates(options[:template]) unless options[:no][:template]

  puts 'Set up done. Go for it!'
end

Instance Attribute Details

#dir ⇒ Object

Returns the value of attribute dir.



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# File 'lib/atcoder_greedy/lib/contest.rb', line 8

def dir
  @dir
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/atcoder_greedy/lib/contest.rb', line 8

def name
  @name
end

#problems ⇒ Object

Returns the value of attribute problems.



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# File 'lib/atcoder_greedy/lib/contest.rb', line 8

def problems
  @problems
end

#url ⇒ Object

Returns the value of attribute url.



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# File 'lib/atcoder_greedy/lib/contest.rb', line 8

def url
  @url
end

Instance Method Details

#create_inputs ⇒ Object 



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# File 'lib/atcoder_greedy/lib/contest.rb', line 67

def create_inputs
  print 'Create inputs ... '
  @problems.each do |problem|
    # take input and output params from url and save to file
    html = @agent.get(@url + problem[:path]).content.toutf8
    doc = Nokogiri::HTML.parse(html, nil, 'utf8')
    in_file = File.new(@dir + "/input_#{problem[:name]}.txt", 'w')

    params = doc.xpath('//pre')
    params.shift
    params.each_with_index do |p, i|
      if i % 2 == 0
        in_file.puts "-- Example #{i/2}"
        in_file.puts "#{p.text.gsub(/\r\n?/, "\n").strip}"
      else
        in_file.puts "-- Answer #{(i-1)/2}"
        in_file.puts "#{p.text.gsub(/\r\n?/, "\n").strip}"
      end
    end

    in_file.close
  end
  puts 'Done!'
end

#create_templates(option_template) ⇒ Object 



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# File 'lib/atcoder_greedy/lib/contest.rb', line 92

def create_templates(option_template)
  print 'Create Templates ... '
  if option_template == ''
    # use user default or system default template
    if AtcoderGreedy.config[:default_template][:"#{@language}"] != ''
      solve_template = open(AtcoderGreedy.config[:default_template][:"#{@language}"], &:read)
    else
      solve_template = open(File.dirname(__dir__) + '/templates' + "/#{@language}/solve.#{@language}", &:read)
    end
  else
    # use option_template
    template_path = GreedyTemplate.get_template_path(option_template)
    if template_path.nil?
      raise "ERROR: Template #{option_template} doesn't found"
    else
      solve_template = open(template_path, &:read)
    end
  end

  @problems.each_with_index do |problem|
    solve_file_content = solve_template.clone
    solve_file_content.gsub!(/DATE/, Time.now.strftime('%F'))
    solve_file_content.gsub!(/CONTEST/, @name.upcase)
    solve_file_content.gsub!(/PROBLEM/, problem[:name])
    solve_file = File.new(@dir + "/#{problem[:name]}.#{@language}", 'w')
    solve_file.print solve_file_content
    solve_file.close
  end
  puts 'Done!'
end

#set_agent ⇒ Object 



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# File 'lib/atcoder_greedy/lib/contest.rb', line 28

def set_agent
  atcoder = Atcoder.new
  atcoder.(@url)
  @agent = atcoder.agent
end

#set_contest_info(option_problems) ⇒ Object 



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# File 'lib/atcoder_greedy/lib/contest.rb', line 34

def set_contest_info(option_problems)
  print 'Set contest info ... '
  @name = URI.parse(@url).host.split('.').first
  html = @agent.get(@url + '/assignments').content.toutf8
  doc = Nokogiri::HTML.parse(html, nil, 'utf8')

  all_problems = []
  task_ids = []
  doc.xpath('//tbody').each do |tbody|
    tbody.xpath('.//a[starts-with(@href,"/submit")]').each do |a|
      task_ids.push(CGI.parse(URI.parse(a.attributes['href'].value).query)['task_id'].first)
    end
    all_problems = tbody.xpath('.//a[@class="linkwrapper"]')
  end

  @problems = []
  if all_problems.nil?
    raise 'Failed to get info. Do you participate this contest?'
  else
    until all_problems.empty?
      path = all_problems[0].attributes['href'].value
      pro = all_problems.select { |l| l.attributes['href'].value == path }
      all_problems = all_problems.reject { |l| l.attributes['href'].value == path }
      name = pro[0].inner_text
      if option_problems.empty? || (!option_problems.empty? && option_problems.include?(name))
        @problems.push(name: pro[0].inner_text, path: path, task_id: task_ids.shift)
        print "#{name} "
      end
    end
  end
  puts 'Done!'
end

#set_directories(directory) ⇒ Object 



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# File 'lib/atcoder_greedy/lib/contest.rb', line 123

def set_directories(directory)
  print 'Set contest directory ... '
  if directory == ''
    FileUtils.mkdir(@name)
    @dir = "./#{@name}"
  else
    if Dir.exists?(directory)
      @dir = directory
    else
      raise "ERROR: Directory doesn't exists:#{@dir}"
    end
  end
  puts 'Done!'
end