305 lines
7.0 KiB
Go
305 lines
7.0 KiB
Go
package coupon
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import (
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// "encoding/json"
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"log"
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"time"
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"loreal.com/dit/cmd/coupon-service/base"
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"github.com/jinzhu/now"
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"github.com/mitchellh/mapstructure"
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)
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// var daysMap = map[string]int {
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// "YEAR" : 366, //理想的是根据是否闰年来计算
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// }
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// TemplateJudge 发卡券时用来验证是否符合rules
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type TemplateJudge interface {
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// JudgeTemplate 验证模板
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JudgeTemplate(consumerID string, couponTypeID string, ruleBody map[string]interface{}, pct *PublishedCouponType) error
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}
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// Judge 兑换卡券时用来验证是否符合rules
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type Judge interface {
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// JudgeCoupon 验证模板
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JudgeCoupon(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) error
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}
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// RedeemPeriodJudge 验证有效期
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type RedeemPeriodJudge struct {
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}
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// RedeemInCurrentNatureTimeUnitJudge 验证自然月，季度，年度有效期
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type RedeemInCurrentNatureTimeUnitJudge struct {
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}
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//ApplyTimesJudge 验证领用次数
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type ApplyTimesJudge struct {
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}
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//RedeemTimesJudge 验证兑换次数
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type RedeemTimesJudge struct {
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}
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//RedeemBySameBrandJudge 验证是否同品牌兑换
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type RedeemBySameBrandJudge struct {
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}
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// TODO: 重构rule结构实现这些接口，统一处理。
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// JudgeCoupon 验证有效期
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// TODO: 未来加上DAY, WEEK, SEARON, YEAR 等
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func (*RedeemInCurrentNatureTimeUnitJudge) JudgeCoupon(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) error {
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var ntu natureTimeUnit
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// var err error
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var start time.Time
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var end time.Time
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if err := mapstructure.Decode(ruleBody, &ntu); err != nil {
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return &ErrCouponRulesBadFormat
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}
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// TODO: 支持季度，年啥的。
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if base.IsBlankString(ntu.Unit) || ntu.Unit != "MONTH" {
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return &ErrCouponRulesUnsuportTimeUnit
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}
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switch ntu.Unit {
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case "MONTH":
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{
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ctMonth := now.With(*c.CreatedTime)
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start = ctMonth.BeginningOfMonth()
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end = ctMonth.EndOfMonth().AddDate(0, 0, ntu.EndInAdvance*-1)
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}
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}
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n := time.Now()
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if n.Before(start) {
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return &ErrCouponRulesRedemptionNotStart
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}
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if n.After(end) {
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return &ErrCouponRulesRedemptionExpired
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}
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return nil
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}
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// JudgeCoupon 验证有效期
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func (*RedeemPeriodJudge) JudgeCoupon(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) error {
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var ts timeSpan
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var err error
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var start time.Time
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var end time.Time
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// err := json.Unmarshal([]byte(jsonString), &ts)
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// if err != nil {
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// log.Println(err)
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// return &ErrCouponRulesBadFormat
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// }
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// var startTime, endTime string
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// var ok bool
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// if startTime, ok = ruleBody["startTime"].(string); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if err := mapstructure.Decode(ruleBody, &ts); err != nil {
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return &ErrCouponRulesBadFormat
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}
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if !base.IsBlankString(ts.StartTime) {
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start, err = time.Parse(timeLayout, ts.StartTime)
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if nil != err {
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log.Println(err)
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return &ErrCouponRulesBadFormat
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}
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}
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// if endTime, ok = ruleBody["endTime"].(string); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if !base.IsBlankString(ts.EndTime) {
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end, err = time.Parse(timeLayout, ts.EndTime)
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if nil != err {
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log.Println(err)
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return &ErrCouponRulesBadFormat
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}
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}
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if time.Now().Before(start) {
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return &ErrCouponRulesRedemptionNotStart
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}
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if time.Now().After(end) {
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return &ErrCouponRulesRedemptionExpired
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}
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return nil
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}
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// JudgeCoupon 验证兑换次数
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func (*RedeemTimesJudge) JudgeCoupon(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) error {
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var rt redeemTimes
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// err := json.Unmarshal([]byte(jsonString), &rt)
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// if err != nil {
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// log.Println(err)
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// return err
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// }
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tas, err := getCouponTransactionsWithType(c.ID, TTRedeemCoupon)
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if err != nil {
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return err
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}
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if nil == tas {
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return nil
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}
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// var i int
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// var ok bool
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// if i, ok = ruleBody["times"].(int); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if err := mapstructure.Decode(ruleBody, &rt); err != nil {
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return &ErrCouponRulesBadFormat
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}
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if len(tas) >= int(rt.Times) {
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return &ErrCouponRulesRedeemTimesExceeded
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}
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return nil
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}
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// JudgeCoupon 验证只能同品牌兑换
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func (*RedeemBySameBrandJudge) JudgeCoupon(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) error {
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if base.IsEmptyString(requester.Brand) {
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return &ErrRequesterHasNoBrand
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}
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var brand sameBrand
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// err := json.Unmarshal([]byte(jsonString), &brand)
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// if err != nil {
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// log.Println(err)
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// return err
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// }
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// var brand string
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// var ok bool
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if err := mapstructure.Decode(ruleBody, &brand); err != nil {
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return &ErrCouponRulesBadFormat
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}
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// if brand, ok = ruleBody["brand"].(string); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if requester.Brand != brand.Brand {
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return &ErrRedeemWithDiffBrand
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}
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return nil
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}
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// JudgeTemplate 验证领用次数
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func (*ApplyTimesJudge) JudgeTemplate(consumerID string, couponTypeID string, ruleBody map[string]interface{}, pct *PublishedCouponType) error {
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coupons, err := getCoupons(consumerID, couponTypeID)
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if err != nil {
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return err
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}
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var at applyTimes
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// err2 := json.Unmarshal([]byte(jsonString), &at)
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// if err2 != nil {
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// log.Println(err2)
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// return err2
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// }
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// var i int
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// var ok bool
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if err := mapstructure.Decode(ruleBody, &at); err != nil {
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return &ErrCouponRulesBadFormat
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}
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// if i, ok = ruleBody["inDays"].(int); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if at.InDays > 0 {
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var expiredTime = pct.CreatedTime.AddDate(0, 0, int(at.InDays))
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if !time.Now().Before(expiredTime) {
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return &ErrCouponRulesApplyTimeExpired
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}
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}
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// if i, ok = ruleBody["times"].(int); !ok {
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// return &ErrCouponRulesBadFormat
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// }
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if at.Times <= uint(len(coupons)) {
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return &ErrCouponRulesApplyTimesExceeded
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}
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return nil
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}
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// JudgeNTUExpired - To validate experiation status of coupon for NTU type.
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func JudgeNTUExpired(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) (bool, error) {
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var ntu natureTimeUnit
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var end time.Time
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if err := mapstructure.Decode(ruleBody, &ntu); err != nil {
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return false, &ErrCouponRulesBadFormat
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}
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if base.IsBlankString(ntu.Unit) || ntu.Unit != "MONTH" {
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return false, &ErrCouponRulesUnsuportTimeUnit
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}
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switch ntu.Unit {
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case "MONTH":
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{
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ctMonth := now.With(*c.CreatedTime)
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end = ctMonth.EndOfMonth().AddDate(0, 0, ntu.EndInAdvance*-1)
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}
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}
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n := time.Now()
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if n.After(end) {
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return true, nil
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}
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return false, nil
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}
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// JudgePeriodExpired - To validate experiation status of coupon for normal period type.
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func JudgePeriodExpired(requester *base.Requester, consumerID string, ruleBody map[string]interface{}, c *Coupon) (bool, error) {
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var ts timeSpan
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var err error
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var end time.Time
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if err := mapstructure.Decode(ruleBody, &ts); err != nil {
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return false, &ErrCouponRulesBadFormat
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}
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if !base.IsBlankString(ts.EndTime) {
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end, err = time.Parse(timeLayout, ts.EndTime)
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if nil != err {
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log.Println(err)
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return false, &ErrCouponRulesBadFormat
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}
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}
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if time.Now().After(end) {
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return true, nil
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}
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return false, nil
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}
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