package user

import (
	"SciencesServer/app/api/enterprise/model"
	"SciencesServer/app/basic/controller"
	model2 "SciencesServer/app/common/model"
	"SciencesServer/app/session"
	"SciencesServer/lib"
	"errors"
	"time"
)

type Vip struct {
	*session.Enterprise
}

type VipHandle func(session *session.Enterprise) *Vip

// Open 开通会员
func (c *Vip) Open(id uint64) (*controller.ReturnPayment, error) {
	mSysVip := model.NewSysVip()
	mSysVip.ID = id

	isExist, err := model2.FirstField(mSysVip.SysVip, []string{"id", "level", "effect_time", "price", "is_disabled"})

	if err != nil {
		return nil, err
	} else if !isExist {
		return nil, errors.New("操作错误，会员信息不存在或已删除")
	} else if mSysVip.IsDeleted > 0 {
		return nil, errors.New("操作错误，当前会员不允许开通")
	}
	// 查询用户会员信息
	mUserInstance := model.NewUserInstance()

	if _, err = model2.FirstField(mUserInstance.UserInstance, []string{"id", "vip", "vip_deadline"},
		model2.NewWhere("uuid", c.UID)); err != nil {
		return nil, err
	}
	// 会员状态有效期内，不可降级
	if mUserInstance.VipStatus() {
		mSysVip2 := model.NewSysVip()
		mSysVip2.ID = mUserInstance.Vip

		if isExist, err = model2.FirstField(mSysVip2.SysVip, []string{"id", "level"}); err != nil {
			return nil, err
		} else if isExist && mSysVip2.Level > mSysVip.Level {
			return nil, errors.New("操作错误，会员有效期间内不可以降级")
		}
	}
	mOrderInstance := model.NewOrderInstance()
	mOrderInstance.UID = c.UID
	mOrderInstance.OrderNo = lib.OrderNo()
	mOrderInstance.Amount = mSysVip.Price
	mOrderInstance.SetParamsAttribute(model2.OrderInstanceParamsKindForVIP, &model2.OrderInstanceParamsForVip{
		ID: mSysVip.ID, EffectTime: mSysVip.EffectTime,
	})
	return &controller.ReturnPayment{
		Auth:      mOrderInstance.GetEncodeID(),
		Timestamp: time.Now().Unix(),
	}, nil
}

func NewVip() VipHandle {
	return func(session *session.Enterprise) *Vip {
		return &Vip{session}
	}
}