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fix(app): more defensive session context metrics

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This commit is contained in:
Adam
2026-02-12 09:59:04 -06:00
parent ff4414bb15
commit ed472d8a67
2 changed files with 9 additions and 2 deletions
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7
packages/app/src/components/session/session-context-metrics.test.ts
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@@ -91,4 +91,11 @@ describe("getSessionContextMetrics", () => {
expect(two.context?.message.id).toBe("a2") expect(two.context?.message.id).toBe("a2")
expect(two.totalCost).toBe(1) expect(two.totalCost).toBe(1)
}) })
test("returns empty metrics when inputs are undefined", () => {
const metrics = getSessionContextMetrics(undefined, undefined)
expect(metrics.totalCost).toBe(0)
expect(metrics.context).toBeUndefined()
})
}) })

4
packages/app/src/components/session/session-context-metrics.ts
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@@ -47,7 +47,7 @@ const lastAssistantWithTokens = (messages: Message[]) => {
} }
} }
const build = (messages: Message[], providers: Provider[]): Metrics => { const build = (messages: Message[] = [], providers: Provider[] = []): Metrics => {
const totalCost = messages.reduce((sum, msg) => sum + (msg.role === "assistant" ? msg.cost : 0), 0) const totalCost = messages.reduce((sum, msg) => sum + (msg.role === "assistant" ? msg.cost : 0), 0)
const message = lastAssistantWithTokens(messages) const message = lastAssistantWithTokens(messages)
if (!message) return { totalCost, context: undefined } if (!message) return { totalCost, context: undefined }
@@ -77,6 +77,6 @@ const build = (messages: Message[], providers: Provider[]): Metrics => {
} }
} }
export function getSessionContextMetrics(messages: Message[], providers: Provider[]) { export function getSessionContextMetrics(messages: Message[] = [], providers: Provider[] = []) {
return build(messages, providers) return build(messages, providers)
} }