feat: add access_until field for subscription api (#295)

* 支持从计费渠道端点返回日期

* fix: fix wrong git base

---------

Co-authored-by: JustSong <songquanpeng@foxmail.com>

controller/billing.go

@@ -11,9 +11,11 @@ func GetSubscription(c *gin.Context) {
 	var usedQuota int
 	var err error
 	var token *model.Token
+	var expiredTime int64
 	if common.DisplayTokenStatEnabled {
 		tokenId := c.GetInt("token_id")
 		token, err = model.GetTokenById(tokenId)
+		expiredTime = token.ExpiredTime
 		remainQuota = token.RemainQuota
 		usedQuota = token.UsedQuota
 	} else {
@@ -21,6 +23,9 @@ func GetSubscription(c *gin.Context) {
 		remainQuota, err = model.GetUserQuota(userId)
 		usedQuota, err = model.GetUserUsedQuota(userId)
 	}
+	if expiredTime <= 0 {
+		expiredTime = 0
+	}
 	if err != nil {
 		openAIError := OpenAIError{
 			Message: err.Error(),
@@ -45,6 +50,7 @@ func GetSubscription(c *gin.Context) {
 		SoftLimitUSD:       amount,
 		HardLimitUSD:       amount,
 		SystemHardLimitUSD: amount,
+		AccessUntil:        expiredTime,
 	}
 	c.JSON(200, subscription)
 	return

controller/channel-billing.go

@@ -22,6 +22,7 @@ type OpenAISubscriptionResponse struct {
 	SoftLimitUSD       float64 `json:"soft_limit_usd"`
 	HardLimitUSD       float64 `json:"hard_limit_usd"`
 	SystemHardLimitUSD float64 `json:"system_hard_limit_usd"`
+	AccessUntil        int64   `json:"access_until"`
 }
 
 type OpenAIUsageDailyCost struct {
@@ -96,6 +97,9 @@ func GetResponseBody(method, url string, channel *model.Channel, headers http.He
 	if err != nil {
 		return nil, err
 	}
+	if res.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("status code: %d", res.StatusCode)
+	}
 	body, err := io.ReadAll(res.Body)
 	if err != nil {
 		return nil, err