import { isSignedIn, signOut, startAuth } from "../services/auth"
import { performSync } from "../services/kindle"

const processMessage = ({type, args}: {type: string, args: any}):any => {
  switch (type) {
    case 'kindle-sync':
      return performSync()
    case 'sign-out':
      return signOut()
    case 'sign-in':
      signOut()
      return startAuth()
    case 'is-signed-in':
      return isSignedIn()
    default:
      throw new Error(`undefined message type: ${type}`)
  }
}

chrome.runtime.onMessage.addListener(
  (request, sender, sendResponse) => {
    const result = processMessage(request)

    if (typeof result?.then === 'function') {
      result.then(sendResponse)
      return true
    } else {
      sendResponse(result)
    }
  }
);