add loadServiceFeeFromSettings

src/utils/serviceFee.ts

@@ -0,0 +1,24 @@
+import { ref } from 'vue'
+import { getSettings } from '@/api/configuration'
+
+export const serviceFeePercentage = ref<number>(0.01)
+
+export async function loadServiceFeeFromSettings() {
+  try {
+    const settings = await getSettings()
+    if (settings && Array.isArray(settings)) {
+      const feeSetting = settings.find(
+        (s) => s?.key === 'fee_service_charge_percentage' && s?.is_active === true
+      )
+      if (feeSetting?.value !== undefined && feeSetting?.value !== null) {
+        serviceFeePercentage.value = Number(feeSetting.value)
+      }
+    }
+  } catch (e) {
+    console.log(e)
+  }
+}
+
+export function calcFeeInGrams(goldValue?: number | null) {
+  return parseFloat(((goldValue ?? 0) * Number(serviceFeePercentage.value)).toFixed(4))
+}