diff --git a/packages/web/e2e/chat.spec.mjs b/packages/web/e2e/chat.spec.mjs
index 4e61ccc..b93e71f 100644
--- a/packages/web/e2e/chat.spec.mjs
+++ b/packages/web/e2e/chat.spec.mjs
@@ -59,6 +59,14 @@ test("chat + tool approval + stats/cost/copy + traces + files", async ({ page })
await expect(page.getByText("exec_command").first()).toBeVisible();
// Thinking + tool calls are wrapped in a work group; header shows running/done status.
await expect(page.getByText("运行中").first()).toBeVisible();
+
+ // Live header statistics: the elapsed chip ticks once per second while the task runs (the
+ // pending approval below keeps it running), so its text must advance with no further server
+ // event. Scoped to the header stats container (div.hidden …): the per-reply footer reuses
+ // the same 用时 ("elapsed") label once the turn's stats line lands.
+ const headerElapsed = page.locator('div.hidden span[title="用时"]');
+ const elapsedBefore = await headerElapsed.textContent();
+ await expect(headerElapsed).not.toHaveText(elapsedBefore);
// The user takes control of the running work group (toggle = userToggled), keeps it open, and
// opens the exec_command card to watch the arguments. Both must survive the end of the turn.
//
diff --git a/packages/web/src/features/chat/chat-page.tsx b/packages/web/src/features/chat/chat-page.tsx
index 5434ff2..df94aad 100644
--- a/packages/web/src/features/chat/chat-page.tsx
+++ b/packages/web/src/features/chat/chat-page.tsx
@@ -12,6 +12,7 @@
* created. The Session list and the new-chat entry point live in the global sidebar.
*/
import { useCallback, useEffect, useRef, useState } from "react";
+import type { ReactNode } from "react";
import { useNavigate, useParams } from "react-router";
import type {
AgentSummary,
@@ -27,9 +28,18 @@ import { ApiError } from "../../api/client";
import { S } from "../../lib/strings";
import { apiErrorText } from "../../lib/api-error";
import { useDocumentTitle } from "../../lib/use-document-title";
-import { formatDateTime, formatMoney, humanizeDuration, humanizeTokens } from "../../lib/format";
+import {
+ formatDateTime,
+ formatMoney,
+ humanizeDuration,
+ humanizeDurationLive,
+ humanizeTokens,
+} from "../../lib/format";
import { latestConversation } from "../../lib/session-grouping";
import { approvalKey, isModelAuthDead } from "../../lib/omni/stream-model";
+import type { StreamModel } from "../../lib/omni/stream-model";
+import { bucketCostUsd, liveSessionElapsedMs } from "../../lib/omni/task-stats";
+import type { BucketPricing, TaskStatsTracker } from "../../lib/omni/task-stats";
import { useTheme } from "../../state/theme";
import { useProject } from "../../state/project";
import { useSessions } from "../../state/sessions";
@@ -65,7 +75,7 @@ const STAT_ICONS = {
} as const;
/** Iconized stat item: a symbol + a value, with the title giving the full meaning. */
-function StatChip({ icon, value, label }: { icon: string; value: string; label: string }) {
+function StatChip({ icon, value, label }: { icon: string; value: ReactNode; label: string }) {
return (
Date.now());
+ useEffect(() => {
+ if (!taskOpen) return;
+ // Load-bearing, not redundant: `now` still holds whatever the state last saw (mount time,
+ // or the final tick of a previous Task), and the first interval callback is a full second
+ // away. The first live render after a Task starts must not compute from that stale clock,
+ // so re-anchor immediately on entering the running state.
+ setNow(Date.now());
+ const id = setInterval(() => setNow(Date.now()), 1000);
+ return () => clearInterval(id);
+ }, [taskOpen]);
+ if (!taskOpen) return <>{humanizeDuration(stats.sessionElapsedMs)}>;
+ return <>{humanizeDurationLive(liveSessionElapsedMs(stats, taskOpen, taskStartLocalMs, now))}>;
+}
+
+/** The header's three statistics — the chip row and the info dropdown render these verbatim. */
+interface HeaderStats {
+ tokensText: string;
+ /** Formatted session cost; null = nothing to show (no recorded figure and no live estimate). */
+ costText: string | null;
+ /** Server-reported "some usage had no pricing" flag from the last idle refetch (the chip's `*`). */
+ costUncosted: boolean;
+ elapsedNode: ReactNode;
+}
+
+/**
+ * Computes the header statistics, live while a Task runs:
+ * - Tokens: session cumulative (main + subagents), already advancing per completed request;
+ * - Cost: the last idle-refetched session cost, plus — while a Task is open and the session
+ * Model has pricing — a live estimate converted from this Task's usage buckets. Subagents
+ * may run on different models, but the estimate applies the main Model's pricing to all
+ * live buckets: the estimate may be slightly off mid-task, and the idle getUsage refetch
+ * reconciles to the server-recorded value (kept deliberately simple). Without pricing the
+ * live addition is skipped (bucketCostUsd returns null, mirroring taskCost's uncosted
+ * signal) and the value stays exactly as when idle. costText stays null until there is an
+ * actual figure — no recorded cost plus a still-zero estimate renders nothing, not $0.00;
+ * - Elapsed: ticking cumulative while running, settled cumulative when idle (SessionElapsed).
+ */
+function headerStats(
+ model: StreamModel,
+ sessionCost: number | null,
+ costUncosted: boolean,
+ pricing: BucketPricing | undefined,
+ currency: "USD" | "CNY",
+): HeaderStats {
+ const stats = model.stats;
+ const liveCost = model.taskOpen
+ ? bucketCostUsd(
+ {
+ cacheRead: stats.taskCacheRead,
+ cacheWrite: stats.taskCacheWrite,
+ output: stats.taskOutput,
+ },
+ pricing,
+ )
+ : null;
+ // Only take the live path once it has something to say — a positive estimate, or a recorded
+ // session cost to keep showing from the Task's first instant. On a brand-new session,
+ // sessionCost is still null and liveCost is 0 until the first token_usage lands; blindly
+ // summing would flash a formatted $0.00 the moment the Task starts — exactly the "cost is
+ // zero or something's broken" reading the chip's render conditional exists to avoid.
+ const costUsd =
+ liveCost != null && (liveCost > 0 || sessionCost != null)
+ ? (sessionCost ?? 0) + liveCost
+ : sessionCost;
+ return {
+ tokensText: humanizeTokens(stats.sessionTotal + stats.subagentTotal),
+ costText: costUsd != null ? formatMoney(costUsd, currency) : null,
+ costUncosted,
+ elapsedNode: (
+
- {S.chat.statTokens} {humanizeTokens(totalTokens)} - {sessionCost != null && - ` · ${S.common.cost} ${formatMoney(sessionCost, currency)}`}{" "} - · {S.chat.statElapsed} {humanizeDuration(stream.model.stats.sessionElapsedMs)} + {S.chat.statTokens} {hs.tokensText} + {hs.costText != null && ` · ${S.common.cost} ${hs.costText}`} ·{" "} + {S.chat.statElapsed} {hs.elapsedNode}
diff --git a/packages/web/src/lib/omni/task-stats.ts b/packages/web/src/lib/omni/task-stats.ts index d92195c..0293bab 100644 --- a/packages/web/src/lib/omni/task-stats.ts +++ b/packages/web/src/lib/omni/task-stats.ts @@ -42,6 +42,32 @@ export interface TokenBucketCounts { output: number; } +/** Three pricing buckets in USD per million tokens (mirrors the server's ModelPricingDto shape). */ +export interface BucketPricing { + cacheRead: number; + cacheWrite: number; + output: number; +} + +/** + * Converts a three-bucket Token count to USD at per-million-token pricing; null when no pricing + * is configured (uncosted — callers omit the figure rather than fabricating a $0). Shared by the + * per-reply stats row's turn cost and the header's live session cost, so the two conversions can + * never drift apart. + */ +export function bucketCostUsd( + buckets: TokenBucketCounts, + pricing: BucketPricing | null | undefined, +): number | null { + if (!pricing) return null; + return ( + (buckets.cacheRead * pricing.cacheRead + + buckets.cacheWrite * pricing.cacheWrite + + buckets.output * pricing.output) / + 1e6 + ); +} + /** Stats tracker: Session-level cumulative counts that persist across Tasks + this-Task delta counts. */ export interface TaskStatsTracker { /** Current context occupancy = total from the most recent main-session request (not updated by compaction requests). */ @@ -287,6 +313,25 @@ export function endTask(t: TaskStatsTracker, elapsedMs: number): TaskStats | nul return stats; } +/** + * Session elapsed time for live display (the header chip): the settled cross-Task cumulative + * plus the currently running Task's wall clock so far. While no Task is open this is exactly + * `sessionElapsedMs`, so the idle rendering equals the settled value; the running addition + * counts from the model's task-start local clock (`taskStartLocalMs`), clamped so a clock + * anomaly never makes the sum go backwards. At task end {@link endTask} folds the Task's + * elapsed into `sessionElapsedMs` in the same model update that flips `taskOpen` off, so the + * live addition never double-counts across the boundary. + */ +export function liveSessionElapsedMs( + t: TaskStatsTracker, + taskOpen: boolean, + taskStartLocalMs: number | null, + nowMs: number, +): number { + const running = taskOpen && taskStartLocalMs != null ? Math.max(0, nowMs - taskStartLocalMs) : 0; + return t.sessionElapsedMs + running; +} + /** Localized labels for {@link formatTaskStats} (supplied by the view layer's active dictionary). */ export interface TaskStatsLabels { /** Row prefix, e.g. "Stats" / "统计信息". */ diff --git a/packages/web/test/task-stats.test.ts b/packages/web/test/task-stats.test.ts index ed2e7b4..0be8620 100644 --- a/packages/web/test/task-stats.test.ts +++ b/packages/web/test/task-stats.test.ts @@ -7,11 +7,13 @@ import type { TokenUsagePayload } from "@prismshadow/penguin-core/omnimessage"; import { addLlmDuration, beginCompaction, + bucketCostUsd, commitPendingCompaction, createTaskStatsTracker, endCompaction, endTask, formatTaskStats, + liveSessionElapsedMs, resetTaskCounters, trackMainUsage, trackSubagentUsage, @@ -194,6 +196,67 @@ describe("TaskStatsTracker", () => { }); }); +describe("liveSessionElapsedMs", () => { + it("idle (no open Task): exactly the settled cumulative — the header renders the same value as before", () => { + const t = createTaskStatsTracker(); + t.sessionElapsedMs = 2300; + expect(liveSessionElapsedMs(t, false, 1000, 99_999)).toBe(2300); + // Open but without a recorded start clock: nothing to add either. + expect(liveSessionElapsedMs(t, true, null, 99_999)).toBe(2300); + }); + + it("running: settled cumulative + wall clock since the Task started, never going backwards", () => { + const t = createTaskStatsTracker(); + t.sessionElapsedMs = 2000; + expect(liveSessionElapsedMs(t, true, 5000, 8000)).toBe(5000); // 2000 + 3000 + // A clock anomaly (now before the recorded start) adds nothing instead of subtracting. + expect(liveSessionElapsedMs(t, true, 5000, 4000)).toBe(2000); + }); + + it("no double count across the Task boundary: endTask folds the Task in as taskOpen flips off", () => { + const t = createTaskStatsTracker(); + // Task 1 settled earlier. + endTask(t, 1000); + // Task 2 runs: started at 10_000, now 14_000 -> 1000 settled + 4000 live. + expect(liveSessionElapsedMs(t, true, 10_000, 14_000)).toBe(5000); + // Task 2 ends: the same model update folds its elapsed into the cumulative AND flips + // taskOpen off — the live view continues from the settled value without re-adding. + endTask(t, 4000); + expect(liveSessionElapsedMs(t, false, 10_000, 15_000)).toBe(5000); + }); +}); + +describe("bucketCostUsd", () => { + it("converts the three buckets at per-million-token pricing", () => { + expect( + bucketCostUsd( + { cacheRead: 2_000_000, cacheWrite: 1_000_000, output: 500_000 }, + { cacheRead: 0.5, cacheWrite: 2, output: 10 }, + ), + ).toBe(8); // 2M×$0.5/M + 1M×$2/M + 0.5M×$10/M = 1 + 2 + 5 + }); + + it("no pricing -> null (uncosted; callers keep the value as-is instead of fabricating $0)", () => { + const buckets = { cacheRead: 100, cacheWrite: 100, output: 100 }; + expect(bucketCostUsd(buckets, undefined)).toBeNull(); + expect(bucketCostUsd(buckets, null)).toBeNull(); + }); + + it("the live Task buckets equal the settled stats row's buckets (the mid-task estimate lands on the final turn cost)", () => { + const t = createTaskStatsTracker(); + trackMainUsage(t, req(300, 100, 200)); + trackSubagentUsage(t, req(50, 0, 3)); + const pricing = { cacheRead: 1, cacheWrite: 2, output: 3 }; + const live = bucketCostUsd( + { cacheRead: t.taskCacheRead, cacheWrite: t.taskCacheWrite, output: t.taskOutput }, + pricing, + ); + const s = endTask(t, 100); + expect(live).not.toBeNull(); + expect(live).toBe(bucketCostUsd(s!.tokensByBucket, pricing)); + }); +}); + describe("formatTaskStats", () => { const EN_LABELS = { stats: "Stats",