traceSpeechOutput (composables/speech-output-trace.ts)

Wraps speech output with OpenTelemetry spans, tracking synthesis, playback, and errors.

// Source: https://github.com/moeru-ai/airi | License: MIT | Copyright 2024-PRESENT Neko Ayaka
// Provided via justclaw.it.com; keep this notice with the code.
import type { Span } from '@opentelemetry/api'
import type { SpeechAudio, SpeechOutput, TurnRef } from '@proj-airi/core-agent'

import { errorMessageFrom } from '@moeru/std'
import { SpanStatusCode } from '@opentelemetry/api'
import { IOAttributes, IOSpanNames, IOSubsystems } from '@proj-airi/stage-shared'

import { startSpan } from './use-io-tracer'

/** A traced output for one response. The owner calls `end` once when that response closes. */
export interface SpeechOutputTrace {
  readonly output: SpeechOutput
  end: () => void
}

function failSpan(span: Span, cause: unknown) {
  span.setStatus({ code: SpanStatusCode.ERROR, messag

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