forgottn/collegetrack_portal

# app/models/token.rb

class Token < ActiveRecord::Base

  def to_params
    {'refresh_token' => refresh_token,
     'client_id' => ENV['GOOGLE_ID'],
     'client_secret' => ENV['GOOGLE_SECRET'],
     'grant_type' => 'refresh_token'}
  end
 
  def request_token_from_google
    url = URI("https://www.googleapis.com/oauth2/v3/token")
    Net::HTTP.post_form(url, self.to_params)
  end
 
  def refresh!
    response = request_token_from_google
    data = JSON.parse(response.body)
    update_attributes(
      access_token: data['access_token'],
      expires_at: Time.now + (data['expires_in'].to_i).seconds)
  end

  def expired?
    expires_at < Time.now
  end
 
  def fresh_token
    refresh! if expired?
    access_token
  end
 
end