extension/src/webext-bridge/internal/endpoint.ts


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import type { Endpoint, RuntimeContext } from '../types'

const ENDPOINT_RE = /^((?:background$)|devtools|popup|options|content-script|window)(?:@(\d+)(?:\.(\d+))?)?$/

export const parseEndpoint = (endpoint: string): Endpoint => {
  const [, context, tabId, frameId] = endpoint.match(ENDPOINT_RE) || []

  return {
    context: context as RuntimeContext,
    tabId: +tabId,
    frameId: frameId ? +frameId : undefined,
  }
}

export const formatEndpoint = ({ context, tabId, frameId }: Endpoint): string => {
  if (['background', 'popup', 'options'].includes(context))
    return context

  return `${context}@${tabId}${frameId ? `.${frameId}` : ''}`
}