refactor: voucher cards and voucher status

frontend/src/components/VoucherCard.tsx

@@ -1,5 +1,10 @@
 import { Voucher } from "@/types/voucher";
-import { formatCode, formatDuration, formatGuestUsage } from "@/utils/format";
+import {
+  formatCode,
+  formatDuration,
+  formatGuestUsage,
+  formatStatus,
+} from "@/utils/format";
 import { memo, useCallback } from "react";
 
 type Props = {
@@ -12,7 +17,9 @@ type Props = {
 const VoucherCard = ({ voucher, selected, editMode, onClick }: Props) => {
   const statusClass = voucher.expired
     ? "bg-status-danger text-status-danger"
-    : "bg-status-success text-status-success";
+    : voucher.activatedAt
+      ? "bg-status-warning text-status-warning"
+      : "bg-status-success text-status-success";
   const onClickHandler = useCallback(
     () => onClick?.(voucher),
     [voucher, onClick],
@@ -69,7 +76,7 @@ const VoucherCard = ({ voucher, selected, editMode, onClick }: Props) => {
           <span
             className={`px-2 py-1 rounded-lg text-xs font-semibold uppercase ${statusClass}`}
           >
-            {voucher.expired ? "Expired" : "Active"}
+            {formatStatus(voucher.expired, voucher.activatedAt)}
           </span>
           {voucher.expiresAt && (
             <span className="text-xs">Expires: {voucher.expiresAt}</span>

frontend/src/components/modals/VoucherModal.tsx

@@ -3,15 +3,17 @@
 import Modal from "@/components/modals/Modal";
 import Spinner from "@/components/utils/Spinner";
 import { api } from "@/utils/api";
-import { useEffect, useRef, useState } from "react";
+import { useCallback, useEffect, useRef, useState } from "react";
 import {
   formatBytes,
   formatDuration,
   formatGuestUsage,
   formatSpeed,
+  formatStatus,
 } from "@/utils/format";
 import VoucherCode from "@/components/utils/VoucherCode";
 import { Voucher } from "@/types/voucher";
+import { TriState } from "@/types/state";
 
 type Props = {
   voucher: Voucher;
@@ -20,8 +22,7 @@ type Props = {
 
 export default function VoucherModal({ voucher, onClose }: Props) {
   const [details, setDetails] = useState<Voucher | null>(null);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState(false);
+  const [state, setState] = useState<TriState | null>(null);
   const lastFetchedId = useRef<string | null>(null);
 
   useEffect(() => {
@@ -31,70 +32,81 @@ export default function VoucherModal({ voucher, onClose }: Props) {
     }
 
     (async () => {
-      setLoading(true);
-      setError(false);
+      setState("loading");
       lastFetchedId.current = voucher.id;
 
       try {
         const res = await api.getVoucherDetails(voucher.id);
         setDetails(res);
+        setState("ok");
       } catch {
-        setError(true);
-      } finally {
-        setLoading(false);
+        setState("error");
       }
     })();
   }, [voucher.id]);
 
+  const renderContent = useCallback(() => {
+    switch (state) {
+      case null:
+      case "loading":
+        return <Spinner />;
+      case "error":
+        return (
+          <div className="card text-status-danger text-center">
+            Failed to load detailed information
+          </div>
+        );
+      case "ok":
+        if (details == null) {
+          return;
+        }
+        return (
+          <div className="space-y-4">
+            {(
+              [
+                ["Status", formatStatus(details.expired, details.activatedAt)],
+                ["Name", details.name || "No note"],
+                ["Created", details.createdAt],
+                ...(details.activatedAt
+                  ? [["Activated", details.activatedAt]]
+                  : []),
+                ...(details.expiresAt ? [["Expires", details.expiresAt]] : []),
+                ["Duration", formatDuration(details.timeLimitMinutes)],
+                [
+                  "Guest Usage",
+                  formatGuestUsage(
+                    details.authorizedGuestCount,
+                    details.authorizedGuestLimit,
+                  ),
+                ],
+                [
+                  "Data Limit",
+                  details.dataUsageLimitMBytes
+                    ? formatBytes(details.dataUsageLimitMBytes * 1024 * 1024)
+                    : "Unlimited",
+                ],
+                ["Download Speed", formatSpeed(details.rxRateLimitKbps)],
+                ["Upload Speed", formatSpeed(details.txRateLimitKbps)],
+                ["ID", details.id],
+              ] as [string, any][]
+            ).map(([label, value]) => (
+              <div
+                key={label}
+                className="flex-center-between p-4 bg-interactive border border-subtle rounded-xl space-x-4"
+              >
+                <span className="font-semibold text-primary">{label}:</span>
+                <span className="text-secondary">{value}</span>
+              </div>
+            ))}
+          </div>
+        );
+    }
+  }, [state, details]);
+
   return (
     <Modal onClose={onClose}>
       <VoucherCode voucher={voucher} contentClassName="mb-8" />
-      {loading ? (
-        <Spinner />
-      ) : error || details == null ? (
-        <div className="card text-status-danger text-center">
-          Failed to load detailed information
-        </div>
-      ) : (
-        <div className="space-y-4">
-          {(
-            [
-              ["Status", details.expired ? "Expired" : "Active"],
-              ["Name", details.name || "No note"],
-              ["Created", details.createdAt],
-              ...(details.activatedAt
-                ? [["Activated", details.activatedAt]]
-                : []),
-              ...(details.expiresAt ? [["Expires", details.expiresAt]] : []),
-              ["Duration", formatDuration(details.timeLimitMinutes)],
-              [
-                "Guest Usage",
-                formatGuestUsage(
-                  details.authorizedGuestCount,
-                  details.authorizedGuestLimit,
-                ),
-              ],
-              [
-                "Data Limit",
-                details.dataUsageLimitMBytes
-                  ? formatBytes(details.dataUsageLimitMBytes * 1024 * 1024)
-                  : "Unlimited",
-              ],
-              ["Download Speed", formatSpeed(details.rxRateLimitKbps)],
-              ["Upload Speed", formatSpeed(details.txRateLimitKbps)],
-              ["ID", details.id],
-            ] as [string, any][]
-          ).map(([label, value]) => (
-            <div
-              key={label}
-              className="flex-center-between p-4 bg-interactive border border-subtle rounded-xl space-x-4"
-            >
-              <span className="font-semibold text-primary">{label}:</span>
-              <span className="text-secondary">{value}</span>
-            </div>
-          ))}
-        </div>
-      )}
+      {renderContent()}
     </Modal>
   );
 }

frontend/src/utils/format.ts

@@ -6,6 +6,15 @@ export function formatMaxGuests(maxGuests: number | null | undefined) {
   return !maxGuests ? "Unlimited" : Math.max(maxGuests, 0);
 }
 
+export function formatStatus(
+  expired: boolean,
+  activatedAt: string | null | undefined,
+) {
+  if (expired) return "Expired";
+  if (activatedAt) return "Active";
+  return "Available";
+}
+
 export function formatDuration(m: number | null | undefined) {
   if (!m) return "Unlimited";
   const days = Math.floor(m / 1440),