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test(ai-review): 補使用量統計 NaN 安全測試並排除微優化誤報 #47

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admin merged 15 commits from develop into master 2026-06-23 09:35:54 +00:00
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app/usage.js
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@@ -211,23 +211,32 @@ function round1(n) {
const RATE_KIND_LABEL = { tokens: 'token', requests: '次數' };
/** 是否為有限正數（排除 0、負數、NaN、Infinity），避免算出 Infinity%／NaN%／負百分比。 */
function isFinitePositive(n) {
return Number.isFinite(Number(n)) && Number(n) > 0;
}
/**
* 計算「剩餘可用百分比」，依優先序擇一：
* 1. 帳號額度（quota 有上限）→ 剩餘 credits / 上限；
* 2. 速率配額（rate limit header）→ 當前視窗剩餘 / 上限；
* 皆無法取得時回傳 { percent: null, reason }。
* 1. 帳號額度（quota 有有限正數上限）→ 剩餘 credits / 上限；
* 2. 速率配額（rate limit header，有限正數上限）→ 當前視窗剩餘 / 上限；
* 上限或剩餘為 0／負數／NaN／Infinity 等無效值時不計算，落到 { percent: null, reason }。
*/
export function resolveRemainingPercent(quota, rate) {
if (quota?.available && quota.limit != null && Number(quota.limit) > 0) {
if (quota?.available && quota.limit != null && isFinitePositive(quota.limit)) {
const limit = Number(quota.limit);
const remaining = quota.remaining == null ? limit - num(quota.used) : Number(quota.remaining);
return { percent: round1((remaining / limit) * 100), basis: '帳號額度', remaining, limit, unit: quota.currency || '' };
if (Number.isFinite(remaining)) {
return { percent: round1((remaining / limit) * 100), basis: '帳號額度', remaining, limit, unit: quota.currency || '' };
}
}
if (rate?.hasData && Number(rate.limit) > 0) {
if (rate?.hasData && isFinitePositive(rate.limit)) {
const limit = Number(rate.limit);
const remaining = Number(rate.remaining);
const kindLabel = RATE_KIND_LABEL[rate.kind] || rate.kind;
return { percent: round1((remaining / limit) * 100), basis: `速率配額（當前視窗，${kindLabel}）`, remaining, limit, unit: '' };
if (Number.isFinite(remaining)) {
const kindLabel = RATE_KIND_LABEL[rate.kind] || rate.kind;
return { percent: round1((remaining / limit) * 100), basis: `速率配額（當前視窗，${kindLabel}）`, remaining, limit, unit: '' };
}
}
let reason;
if (quota?.available && quota.limit == null) reason = '帳號額度無上限，無法計算百分比';