Function resolveLabelNames

apps/sim/connectors/gmail/gmail.ts:279–315

* Resolves label IDs to human-readable label names using a cache.

(
  accessToken: string,
  labelIds: string[],
  syncContext?: Record<string, unknown>
)

 * Resolves label IDs to human-readable label names using a cache.
 */
async function resolveLabelNames(
  accessToken: string,
  labelIds: string[],
  syncContext?: Record<string, unknown>
): Promise<string[]> {
  const cacheKey = '_gmailLabelCache'

  if (syncContext && !syncContext[cacheKey]) {
    try {
      const url = `${GMAIL_API_BASE}/labels`
      const response = await fetchWithRetry(url, {
        method: 'GET',
        headers: {
          Authorization: `Bearer ${accessToken}`,
          Accept: 'application/json',
        },
      })

      if (response.ok) {
        const data = await response.json()
        const labels = (data.labels || []) as GmailLabel[]
        const labelMap: Record<string, string> = {}
        for (const label of labels) {
          labelMap[label.id] = label.name
        }
        syncContext[cacheKey] = labelMap
      }
    } catch {
      syncContext[cacheKey] = {}
    }
  }

  const cache = (syncContext?.[cacheKey] as Record<string, string>) ?? {}
  return labelIds
    .map((id) => cache[id] || id)
    .filter((name) => !name.startsWith('CATEGORY_') && name !== 'UNREAD')
}

/**
 * Creates a lightweight document stub from a thread list entry.