feat: show remaining subscription push count

src/app/(user)/subscriptions/push/_components/subscription-push-form.tsx

@@ -39,6 +39,12 @@ function remainingTrafficLabel(subscription: PushSubscriptionOption) {
   return `剩余 ${formatBytes(remaining)}`;
 }
 
+function pushUsageLabel(subscription: PushSubscriptionOption) {
+  const usage = subscription.pushUsage;
+  if (usage.limit <= 0) return "本周期不可 Push";
+  return `本周期剩余 ${usage.remaining}/${usage.limit} 次`;
+}
+
 export function SubscriptionPushForm({
   subscriptions,
   config,
@@ -60,6 +66,8 @@ export function SubscriptionPushForm({
     () => subscriptions.find((item) => item.id === subscriptionId) ?? null,
     [subscriptionId, subscriptions],
   );
+  const selectedRemaining = selectedSubscription?.pushUsage.remaining ?? 0;
+  const transferUnavailable = Boolean(selectedSubscription) && selectedRemaining <= 0;
 
   return (
     <form
@@ -122,7 +130,16 @@ export function SubscriptionPushForm({
           </SelectContent>
         </Select>
         {selectedSubscription && (
-          <p className="text-xs text-muted-foreground">{remainingTrafficLabel(selectedSubscription)}</p>
+          <div className="grid gap-2 sm:grid-cols-2">
+            <div className="rounded-lg border border-border/60 bg-muted/25 px-3 py-2">
+              <p className="text-[11px] font-medium text-muted-foreground">Push 次数</p>
+              <p className="mt-1 text-sm font-semibold">{pushUsageLabel(selectedSubscription)}</p>
+            </div>
+            <div className="rounded-lg border border-border/60 bg-muted/25 px-3 py-2">
+              <p className="text-[11px] font-medium text-muted-foreground">剩余资源</p>
+              <p className="mt-1 text-sm font-semibold">{remainingTrafficLabel(selectedSubscription)}</p>
+            </div>
+          </div>
         )}
       </div>
 
@@ -155,8 +172,18 @@ export function SubscriptionPushForm({
         单周期最多 {config.limitPerCycle} 次；低于 {config.minRemainingDays} 天或代理剩余流量低于 {config.minRemainingTrafficGb} GB 时不可 Push。
       </div>
 
-      <Button type="submit" className="w-full" disabled={pending || !config.enabled || subscriptions.length === 0}>
-        {pending ? "发起中..." : subscriptions.length === 0 ? "暂无可 Push 套餐" : "发起 Push"}
+      <Button
+        type="submit"
+        className="w-full"
+        disabled={pending || !config.enabled || subscriptions.length === 0 || transferUnavailable}
+      >
+        {pending
+          ? "发起中..."
+          : subscriptions.length === 0
+            ? "暂无可 Push 套餐"
+            : transferUnavailable
+              ? "本周期次数已用尽"
+              : "发起 Push"}
       </Button>
     </form>
   );

src/app/(user)/subscriptions/push/push-data.ts

@@ -30,14 +30,67 @@ const transferInclude = {
   recipient: { select: { id: true, email: true, name: true } },
 } satisfies Prisma.SubscriptionTransferInclude;
 
-export type PushSubscriptionOption = Prisma.UserSubscriptionGetPayload<{
+type PushSubscriptionBaseOption = Prisma.UserSubscriptionGetPayload<{
   include: typeof pushSubscriptionInclude;
 }>;
 
+export type PushSubscriptionOption = PushSubscriptionBaseOption & {
+  pushUsage: {
+    limit: number;
+    used: number;
+    remaining: number;
+    cycleStartedAt: Date;
+  };
+};
+
 export type UserSubscriptionTransferRow = Prisma.SubscriptionTransferGetPayload<{
   include: typeof transferInclude;
 }>;
 
+async function getSubscriptionCycleStartedAt(subscription: PushSubscriptionBaseOption) {
+  const latestRenewal = await prisma.order.findFirst({
+    where: {
+      targetSubscriptionId: subscription.id,
+      kind: "RENEWAL",
+      status: "PAID",
+    },
+    select: { createdAt: true },
+    orderBy: { createdAt: "desc" },
+  });
+
+  return latestRenewal?.createdAt ?? subscription.startDate;
+}
+
+async function attachPushUsage(
+  subscriptions: PushSubscriptionBaseOption[],
+  limitPerCycle: number,
+): Promise<PushSubscriptionOption[]> {
+  const limit = Math.max(0, limitPerCycle);
+
+  return Promise.all(
+    subscriptions.map(async (subscription) => {
+      const cycleStartedAt = await getSubscriptionCycleStartedAt(subscription);
+      const used = await prisma.subscriptionTransfer.count({
+        where: {
+          subscriptionId: subscription.id,
+          status: "ACCEPTED",
+          cycleStartedAt,
+        },
+      });
+
+      return {
+        ...subscription,
+        pushUsage: {
+          limit,
+          used,
+          remaining: Math.max(0, limit - used),
+          cycleStartedAt,
+        },
+      };
+    }),
+  );
+}
+
 export async function getSubscriptionPushPageData(userId: string) {
   await processExpiredSubscriptionTransfers();
 
@@ -70,6 +123,11 @@ export async function getSubscriptionPushPageData(userId: string) {
     }),
   ]);
 
+  const subscriptionsWithUsage = await attachPushUsage(
+    subscriptions,
+    config.subscriptionTransferLimitPerCycle,
+  );
+
   return {
     config: {
       enabled: config.subscriptionTransferEnabled,
@@ -78,7 +136,7 @@ export async function getSubscriptionPushPageData(userId: string) {
       minRemainingDays: config.subscriptionTransferMinRemainingDays,
       minRemainingTrafficGb: config.subscriptionTransferMinRemainingTrafficGb,
     },
-    subscriptions,
+    subscriptions: subscriptionsWithUsage,
     transfers,
     walletBalance: Number(wallet?.balance ?? 0),
   };