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import { useEffect, useRef } from 'react'import type { Atom } from '../core/atom'import { Message } from './types'import { useAtomsSnapshot } from './useAtomsSnapshot'import { useGotoAtomsSnapshot } from './useGotoAtomsSnapshot'
type Scope = NonNullable<Parameters<typeof useAtomsSnapshot>[0]>
type AnyAtomValue = unknowntype AnyAtom = Atom<AnyAtomValue>type AtomsValues = Map<AnyAtom, AnyAtomValue> // immutabletype AtomsDependents = Map<AnyAtom, Set<AnyAtom>> // immutabletype AtomsSnapshot = Readonly<{  values: AtomsValues  dependents: AtomsDependents}>
const atomToPrintable = (atom: AnyAtom) =>  atom.debugLabel ? `${atom}:${atom.debugLabel}` : `${atom}`
const getDevtoolsState = (atomsSnapshot: AtomsSnapshot) => {  const values: Record<string, AnyAtomValue> = {}  atomsSnapshot.values.forEach((v, atom) => {    values[atomToPrintable(atom)] = v  })  const dependents: Record<string, string[]> = {}  atomsSnapshot.dependents.forEach((d, atom) => {    dependents[atomToPrintable(atom)] = Array.from(d).map(atomToPrintable)  })  return {    values,    dependents,  }}
type DevtoolsOptions = {  scope?: Scope  enabled?: boolean}
export function useAtomsDevtools(name: string, options?: DevtoolsOptions): void
/* * @deprecated Please use object options (DevtoolsOptions) */export function useAtomsDevtools(name: string, scope?: Scope): void
export function useAtomsDevtools(  name: string,  options?: DevtoolsOptions | Scope) {  if (typeof options !== 'undefined' && typeof options !== 'object') {    console.warn('DEPRECATED [useAtomsDevtools] use DevtoolsOptions')    options = { scope: options }  }  const { enabled, scope } = options || {}
  let extension: typeof window['__REDUX_DEVTOOLS_EXTENSION__'] | false
  try {    extension = (enabled ?? __DEV__) && window.__REDUX_DEVTOOLS_EXTENSION__  } catch {    // ignored  }
  if (!extension) {    if (__DEV__ && enabled) {      console.warn('Please install/enable Redux devtools extension')    }  }
  // This an exception, we don't usually use utils in themselves!  const atomsSnapshot = useAtomsSnapshot(scope)  const goToSnapshot = useGotoAtomsSnapshot(scope)
  const isTimeTraveling = useRef(false)  const isRecording = useRef(true)  const devtools = useRef<    ReturnType<      NonNullable<typeof window['__REDUX_DEVTOOLS_EXTENSION__']>['connect']    > & {      shouldInit?: boolean    }  >()
  const snapshots = useRef<AtomsSnapshot[]>([])
  useEffect(() => {    if (!extension) {      return    }    const getSnapshotAt = (index = snapshots.current.length - 1) => {      // index 0 is @@INIT, so we need to return the next action (0)      const snapshot = snapshots.current[index >= 0 ? index : 0]      if (!snapshot) {        throw new Error('snaphost index out of bounds')      }      return snapshot    }    const connection = extension.connect({ name })
    const devtoolsUnsubscribe = (      connection as unknown as {        // FIXME https://github.com/reduxjs/redux-devtools/issues/1097        subscribe: (          listener: (message: Message) => void        ) => (() => void) | undefined      }    ).subscribe((message) => {      switch (message.type) {        case 'DISPATCH':          switch (message.payload?.type) {            case 'RESET':              // TODO              break
            case 'COMMIT':              connection.init(getDevtoolsState(getSnapshotAt()))              snapshots.current = []              break
            case 'JUMP_TO_ACTION':            case 'JUMP_TO_STATE':              isTimeTraveling.current = true              goToSnapshot(getSnapshotAt(message.payload.actionId - 1))              break
            case 'PAUSE_RECORDING':              isRecording.current = !isRecording.current              break          }      }    })
    devtools.current = connection    devtools.current.shouldInit = true    return devtoolsUnsubscribe  }, [extension, goToSnapshot, name])
  useEffect(() => {    if (!devtools.current) {      return    }    if (devtools.current.shouldInit) {      devtools.current.init(undefined)      devtools.current.shouldInit = false      return    }    if (isTimeTraveling.current) {      isTimeTraveling.current = false    } else if (isRecording.current) {      snapshots.current.push(atomsSnapshot)      devtools.current.send(        {          type: `${snapshots.current.length}`,          updatedAt: new Date().toLocaleString(),        } as any,        getDevtoolsState(atomsSnapshot)      )    }  }, [atomsSnapshot])}