class Atcoder

# File lib/atcoder_tools/atcoder.rb, line 7
def initialize
  @settings = Settings.new
  @agent = Mechanize.new
  @agent.user_agent_alias = 'Mac Mozilla'
end

# File lib/atcoder_tools/atcoder.rb, line 18
def self.submit(task)
  atcoder = Atcoder.new
  atcoder.login
  atcoder.submit(task)
end

# File lib/atcoder_tools/atcoder.rb, line 13
def self.test_login(username, password)
  atcoder = Atcoder.new
  return atcoder.login(username=username, password=password)
end

# File lib/atcoder_tools/atcoder.rb, line 54
def login(username=nil, password=nil)

  username ||= @settings.credentials.username
  password ||= @settings.credentials.password

  response = nil
  log_debug "try login to atcoder"
  @agent.get("https://atcoder.jp/login") do |page|
    # 1つ目のフォームはログアウト用なので2つ目を使用
    form = page.forms.last
    form.field_with(name: 'username').value = username
    form.field_with(name: 'password').value = password
    response = @agent.submit(form)
  end

  # print(response.response)
  res = response.body.include?("Welcome, #{username}.")
  if res
    log_debug "login secceed!"
  else
    log_warn "login falied!"
  end

  return res
end

# File lib/atcoder_tools/atcoder.rb, line 30
def submit(task)
  response = nil
  language_id = nil
  case task.contest.language
  when "ruby"
    language_id = "4049"
  when "c++(gcc)"
    language_id = "4003"
  end

    @agent.get(task_url(task)) do |page|
    # 1つ目のフォームはログアウト用なので2つ目を使用
    form = page.forms.last
    form.field_with(name: 'data.LanguageId').value = language_id
    form.field_with(name: 'sourceCode').value = task.code
    response = @agent.submit(form)
  end

  if response.code.to_i == 200
    return true
  end
  return false
end

# File lib/atcoder_tools/atcoder.rb, line 25
def task_url(task)
  "https://atcoder.jp/contests/#{task.contest.name}/tasks/#{task.contest.name}_#{task.name}"
end