# smell code and idea for clear gem :)
# todo: wrap to gem, parse m3u8, ts downloader to file
require 'httparty'

class RutubeList
  APIS =
    {
      login: 'https://pass.rutube.ru/api/accounts/phone/login/',
      login_social: 'https://rutube.ru/social/auth/rupass/?callback_path=/social/login/rupass/',
      visitor: 'https://rutube.ru/api/accounts/visitor/',
      ad: 'https://mtr.rutube.ru/api/v3/interactive/',
      hls: 'https://rutube.ru/api/play/options/'
    }

  include HTTParty

  def initialize(phone:, password:, video_id:)
    @phone = phone
    @password = password
    @video_id = video_id
    @cookies = nil
    @response = nil
  end

  def call
    login!
    social_login!
    club_params_encrypted = grab_club_params!
    club_token = grab_club_token!(club_params_encrypted: club_params_encrypted)

    grab_hls!(club_token: club_token)
  end

  private

  def login!
    @response =
      self.class.post(
        APIS[:login],
        body: {
          phone: @phone,
          password: @password
        }
      )

    update_cookie!
  end

  def social_login!
    @response =
      self.class.get(
        APIS[:login_social],
        headers: {
          Cookie: @cookies.to_cookie_string
        }
      )

    update_cookie!
  end

  def grab_club_params!
    @response =
      self.class.get(
        APIS[:visitor],
        headers: {
          Cookie: @cookies.to_cookie_string
        }
      )

    update_cookie!

    @response["club_params_encrypted"]
  end

  def grab_club_token!(club_params_encrypted:)
    @response =
      self.class.get(
        "#{APIS[:ad]}?#{club_params_encrypted}&video_id=#{@video_id}",
        headers: {
          Cookie: @cookies.to_cookie_string
        }
      )

    @response["award"]
  end

  def grab_hls!(club_token:)
    @response =
      self.class.get(
        "#{APIS[:hls]}#{@video_id}?club_token=#{club_token}",
        headers: {
          Cookie: @cookies.to_cookie_string
        }
      )

      self.class.get(@response["video_balancer"]["m3u8"])
  end

  def update_cookie!
    @cookies = parse_cookie(@response)
  end

  def parse_cookie(response)
    cookie_hash = HTTParty::CookieHash.new
    response.get_fields('Set-Cookie').each { |c| cookie_hash.add_cookies(c) }
    cookie_hash
  end
end

response = RutubeList.new(
  phone: "",
  password: ,
  video_id: ""
).call

puts response