class Weapps::CodeSessionsController < Weapps::BaseController
  def create
    return render_error('code不能为空') if params[:code].blank?

    result = Wechat::Weapp.jscode2session(params[:code])

    set_session_openid(result['openid'])
    set_weapp_session_key(result['session_key']) # weapp session_key写入缓存 后续解密需要

    # 已授权，绑定过账号
    open_user = OpenUser::Wechat.find_by(uid: result['unionid'])
    if open_user.present? && open_user.user
      set_session_unionid(result['unionid'])
      successful_authentication(open_user.user)
    else
      # 新用户
      user_info = Wechat::Weapp.decrypt(result['session_key'], params[:encrypted_data], params[:iv])

      set_session_unionid(user_info['unionId'])
    end

    render_ok(openid: result['openid'])
  end
end