Function trackDatadogEvent

src/services/analytics/datadog.ts:160–279

(
  eventName: string,
  properties: { [key: string]: boolean | number | undefined },
)

// NOTE: use via src/services/analytics/index.ts > logEvent
export async function trackDatadogEvent(
  eventName: string,
  properties: { [key: string]: boolean | number | undefined },
): Promise<void> {
  if (process.env.NODE_ENV !== 'production') {
    return
  }

  // Don't send events for 3P providers (Bedrock, Vertex, Foundry)
  if (getAPIProvider() !== 'firstParty') {
    return
  }

  // Fast path: use cached result if available to avoid await overhead
  let initialized = datadogInitialized
  if (initialized === null) {
    initialized = await initializeDatadog()
  }
  if (!initialized || !DATADOG_ALLOWED_EVENTS.has(eventName)) {
    return
  }

  try {
    const metadata = await getEventMetadata({
      model: properties.model,
      betas: properties.betas,
    })
    // Destructure to avoid duplicate envContext (once nested, once flattened)
    const { envContext, ...restMetadata } = metadata
    const allData: Record<string, unknown> = {
      ...restMetadata,
      ...envContext,
      ...properties,
      userBucket: getUserBucket(),
    }

    // Normalize MCP tool names to "mcp" for cardinality reduction
    if (
      typeof allData.toolName === 'string' &&
      allData.toolName.startsWith('mcp__')
    ) {
      allData.toolName = 'mcp'
    }

    // Normalize model names for cardinality reduction (external users only)
    if (process.env.USER_TYPE !== 'ant' && typeof allData.model === 'string') {
      const shortName = getCanonicalName(allData.model.replace(/\[1m]$/i, ''))
      allData.model = shortName in MODEL_COSTS ? shortName : 'other'
    }

    // Truncate dev version to base + date (remove timestamp and sha for cardinality reduction)
    // e.g. "2.0.53-dev.20251124.t173302.sha526cc6a" -> "2.0.53-dev.20251124"
    if (typeof allData.version === 'string') {
      allData.version = allData.version.replace(
        /^(\d+\.\d+\.\d+-dev\.\d{8})\.t\d+\.sha[a-f0-9]+$/,
        '$1',
      )
    }