#encoding: utf-8
class Training < ActiveRecord::Base
  attr_accessible :address, :email, :name, :phone, :position, :school, :sex, :openid, :training_type,
                  :major, :student_id

  # training_type 1 2018-培训会  2 警察学院大数据培训会  3 大数据和人工智能  4 工程教育认证

  has_one :training_payinfo

  Training_Type  = 2       #警察学院大数据培训会

  ## 是否填过支付信息
  def pay?
    !training_payinfo.nil? && !training_payinfo.status.nil?
  end

  ## 是否已真正支付
  # 1. 微信支付
  # 2. 银行卡支付，后台已确认
  def payed?
    pay? && training_payinfo.payed?
  end

  def research_field_include?(str)
    research_field.present? && research_field.split(',').include?(str)
  end

  def pay_order_title
    case training_type
    when 3 then '全国高校大数据和人工智能暑期师资培训会-报名费'
    when 4 then '工程教育认证培训会-报名费'
    end
  end

  def registration_fee(num = 1)
    case training_type
    when 3 then
      # 三人以上 8折
      num >= 3 ? 3000.0 * 0.8 * num : 3000.0 * num
    when 4 then
      1200.0 * num
    else
      raise ArgumentError
    end
  end
end