feat: support channel remain quota query (close #79)

controller/channel-billing.go

@@ -0,0 +1,158 @@
+package controller
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"io"
+	"net/http"
+	"one-api/common"
+	"one-api/model"
+	"strconv"
+	"time"
+)
+
+type OpenAISubscriptionResponse struct {
+	HasPaymentMethod bool    `json:"has_payment_method"`
+	HardLimitUSD     float64 `json:"hard_limit_usd"`
+}
+
+type OpenAIUsageResponse struct {
+	TotalUsage float64 `json:"total_usage"` // unit: 0.01 dollar
+}
+
+func updateChannelBalance(channel *model.Channel) (float64, error) {
+	baseURL := common.ChannelBaseURLs[channel.Type]
+	switch channel.Type {
+	case common.ChannelTypeAzure:
+		return 0, errors.New("尚未实现")
+	}
+	url := fmt.Sprintf("%s/v1/dashboard/billing/subscription", baseURL)
+
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return 0, err
+	}
+	auth := fmt.Sprintf("Bearer %s", channel.Key)
+	req.Header.Add("Authorization", auth)
+	res, err := client.Do(req)
+	if err != nil {
+		return 0, err
+	}
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		return 0, err
+	}
+	err = res.Body.Close()
+	if err != nil {
+		return 0, err
+	}
+	subscription := OpenAISubscriptionResponse{}
+	err = json.Unmarshal(body, &subscription)
+	if err != nil {
+		return 0, err
+	}
+	now := time.Now()
+	startDate := fmt.Sprintf("%s-01", now.Format("2006-01"))
+	//endDate := now.Format("2006-01-02")
+	url = fmt.Sprintf("%s/v1/dashboard/billing/usage?start_date=%s&end_date=%s", baseURL, startDate, "2023-06-01")
+	req, err = http.NewRequest("GET", url, nil)
+	if err != nil {
+		return 0, err
+	}
+	req.Header.Add("Authorization", auth)
+	res, err = client.Do(req)
+	if err != nil {
+		return 0, err
+	}
+	body, err = io.ReadAll(res.Body)
+	if err != nil {
+		return 0, err
+	}
+	err = res.Body.Close()
+	if err != nil {
+		return 0, err
+	}
+	usage := OpenAIUsageResponse{}
+	err = json.Unmarshal(body, &usage)
+	if err != nil {
+		return 0, err
+	}
+	balance := subscription.HardLimitUSD - usage.TotalUsage/100
+	channel.UpdateBalance(balance)
+	return balance, nil
+}
+
+func UpdateChannelBalance(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	channel, err := model.GetChannelById(id, true)
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	balance, err := updateChannelBalance(channel)
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+		"balance": balance,
+	})
+	return
+}
+
+func updateAllChannelsBalance() error {
+	channels, err := model.GetAllChannels(0, 0, true)
+	if err != nil {
+		return err
+	}
+	for _, channel := range channels {
+		if channel.Status != common.ChannelStatusEnabled {
+			continue
+		}
+		balance, err := updateChannelBalance(channel)
+		if err != nil {
+			continue
+		} else {
+			// err is nil & balance <= 0 means quota is used up
+			if balance <= 0 {
+				disableChannel(channel.Id, channel.Name, "余额不足")
+			}
+		}
+	}
+	return nil
+}
+
+func UpdateAllChannelsBalance(c *gin.Context) {
+	// TODO: make it async
+	err := updateAllChannelsBalance()
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+	})
+	return
+}