feat: sync upstream pricing from pricing endpoint (#4452)

* feat: sync upstream pricing from pricing endpoint

* feat: sync upstream pricing with expression priority

* fix: add feedback while syncing upstream pricing

* fix: show loading state for empty upstream pricing sync

setting/billing_setting/tiered_billing.go

@@ -5,11 +5,14 @@ import (
 
 	"github.com/QuantumNous/new-api/pkg/billingexpr"
 	"github.com/QuantumNous/new-api/setting/config"
+	"github.com/samber/lo"
 )
 
 const (
 	BillingModeRatio      = "ratio"
 	BillingModeTieredExpr = "tiered_expr"
+	BillingModeField      = "billing_mode"
+	BillingExprField      = "billing_expr"
 )
 
 // BillingSetting is managed by config.GlobalConfig.Register.
@@ -44,6 +47,25 @@ func GetBillingExpr(model string) (string, bool) {
 	return expr, ok
 }
 
+func GetBillingModeCopy() map[string]string {
+	return lo.Assign(billingSetting.BillingMode)
+}
+
+func GetBillingExprCopy() map[string]string {
+	return lo.Assign(billingSetting.BillingExpr)
+}
+
+func GetPricingSyncData(base map[string]any) map[string]any {
+	extra := make(map[string]any, 2)
+	if modes := GetBillingModeCopy(); len(modes) > 0 {
+		extra[BillingModeField] = modes
+	}
+	if exprs := GetBillingExprCopy(); len(exprs) > 0 {
+		extra[BillingExprField] = exprs
+	}
+	return lo.Assign(base, extra)
+}
+
 // ---------------------------------------------------------------------------
 // Smoke test (called externally for validation before save)
 // ---------------------------------------------------------------------------

setting/ratio_setting/model_ratio.go

@@ -709,6 +709,18 @@ func GetCompletionRatioCopy() map[string]float64 {
 	return completionRatioMap.ReadAll()
 }
 
+func GetImageRatioCopy() map[string]float64 {
+	return imageRatioMap.ReadAll()
+}
+
+func GetAudioRatioCopy() map[string]float64 {
+	return audioRatioMap.ReadAll()
+}
+
+func GetAudioCompletionRatioCopy() map[string]float64 {
+	return audioCompletionRatioMap.ReadAll()
+}
+
 // 转换模型名，减少渠道必须配置各种带参数模型
 func FormatMatchingModelName(name string) string {