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Co-Authored-By: Claude <noreply@anthropic.com>

setting/ratio_setting/exposed_cache.go

@@ -0,0 +1,55 @@
+package ratio_setting
+
+import (
+    "sync"
+    "sync/atomic"
+    "time"
+
+    "github.com/gin-gonic/gin"
+)
+
+const exposedDataTTL = 30 * time.Second
+
+type exposedCache struct {
+    data      gin.H
+    expiresAt time.Time
+}
+
+var (
+    exposedData atomic.Value
+    rebuildMu   sync.Mutex
+)
+
+func InvalidateExposedDataCache() {
+    exposedData.Store((*exposedCache)(nil))
+}
+
+func cloneGinH(src gin.H) gin.H {
+    dst := make(gin.H, len(src))
+    for k, v := range src {
+        dst[k] = v
+    }
+    return dst
+}
+
+func GetExposedData() gin.H {
+    if c, ok := exposedData.Load().(*exposedCache); ok && c != nil && time.Now().Before(c.expiresAt) {
+        return cloneGinH(c.data)
+    }
+    rebuildMu.Lock()
+    defer rebuildMu.Unlock()
+    if c, ok := exposedData.Load().(*exposedCache); ok && c != nil && time.Now().Before(c.expiresAt) {
+        return cloneGinH(c.data)
+    }
+    newData := gin.H{
+        "model_ratio":      GetModelRatioCopy(),
+        "completion_ratio": GetCompletionRatioCopy(),
+        "cache_ratio":      GetCacheRatioCopy(),
+        "model_price":      GetModelPriceCopy(),
+    }
+    exposedData.Store(&exposedCache{
+        data:      newData,
+        expiresAt: time.Now().Add(exposedDataTTL),
+    })
+    return cloneGinH(newData)
+}