在vue3中如何编写一个标准的hooks？

// eslint-disable-next-line no-restricted-imports
import { ref, unref } from 'vue-demi'

import type { MaybeRef } from 'vue-demi'

export interface UseCounterOptions {
  min?: number
  max?: number
}


export function useCounter(initialValue: MaybeRef = 0, options: UseCounterOptions = {}) {
  let _initialValue = unref(initialValue)
  const count = ref(initialValue)

  const {
    max = Number.POSITIVE_INFINITY,
    min = Number.NEGATIVE_INFINITY,
  } = options

  const inc = (delta = 1) => count.value = Math.min(max, count.value + delta)
  const dec = (delta = 1) => count.value = Math.max(min, count.value - delta)
  const get = () => count.value
  const set = (val: number) => (count.value = Math.max(min, Math.min(max, val)))
  const reset = (val = _initialValue) => {
    _initialValue = val
    return set(val)
  }

  return { count, inc, dec, get, set, reset }
}

import { Ref, readonly, ref } from 'vue'
import { isNumber } from '../utils' // export const isNumber = (value: unknown): value is number => typeof value === 'number'

export interface UseCounterOptions {
  
  min?: number

  
  max?: number
}

export interface UseCounterActions {
  
  inc: (delta?: number) => void

  
  dec: (delta?: number) => void

  
  set: (value: number | ((c: number) => number)) => void

  
  reset: () => void
}

export type ValueParam = number | ((c: number) => number)

function getTargetValue(val: number, options: UseCounterOptions = {}) {
  const { min, max } = options
  let target = val
  if (isNumber(max)) {
    target = Math.min(max, target)
  }
  if (isNumber(min)) {
    target = Math.max(min, target)
  }
  return target
}

function useCounter(
  initialValue = 0,
  options: UseCounterOptions = {},
): [Ref, UseCounterActions] {
  const { min, max } = options

  const current = ref(
    getTargetValue(initialValue, {
      min,
      max,
    }),
  )

  const setValue = (value: ValueParam) => {
    const target = isNumber(value) ? value : value(current.value)
    current.value = getTargetValue(target, {
      max,
      min,
    })
    return current.value
  }

  const inc = (delta = 1) => {
    setValue(c => c + delta)
  }

  const dec = (delta = 1) => {
    setValue(c => c - delta)
  }

  const set = (value: ValueParam) => {
    setValue(value)
  }

  const reset = () => {
    setValue(initialValue)
  }

  return [
    readonly(current),
    {
      inc,
      dec,
      set,
      reset,
    },
  ]
}

export default useCounter

import type { RouteRecordRaw } from 'vue-router';

import { useAppStore } from '/@/store/modules/app';
import { usePermissionStore } from '/@/store/modules/permission';
import { useUserStore } from '/@/store/modules/user';

import { useTabs } from './useTabs';

import { router, resetRouter } from '/@/router';
// import { RootRoute } from '/@/router/routes';

import projectSetting from '/@/settings/projectSetting';
import { PermissionModeEnum } from '/@/enums/appEnum';
import { RoleEnum } from '/@/enums/roleEnum';

import { intersection } from 'lodash-es';
import { isArray } from '/@/utils/is';
import { useMultipleTabStore } from '/@/store/modules/multipleTab';

// User permissions related operations
export function usePermission() {
  const userStore = useUserStore();
  const appStore = useAppStore();
  const permissionStore = usePermissionStore();
  const { closeAll } = useTabs(router);

  
  async function togglePermissionMode() {
    appStore.setProjectConfig({
      permissionMode:
        appStore.projectConfig?.permissionMode === PermissionModeEnum.BACK
          ? PermissionModeEnum.ROUTE_MAPPING
          : PermissionModeEnum.BACK,
    });
    location.reload();
  }

  
  async function resume() {
    const tabStore = useMultipleTabStore();
    tabStore.clearCacheTabs();
    resetRouter();
    const routes = await permissionStore.buildRoutesAction();
    routes.forEach((route) => {
      router.addRoute(route as unknown as RouteRecordRaw);
    });
    permissionStore.setLastBuildMenuTime();
    closeAll();
  }

  
  function hasPermission(value?: RoleEnum | RoleEnum[] | string | string[], def = true): boolean {
    // Visible by default
    if (!value) {
      return def;
    }

    const permMode = projectSetting.permissionMode;

    if ([PermissionModeEnum.ROUTE_MAPPING, PermissionModeEnum.ROLE].includes(permMode)) {
      if (!isArray(value)) {
        return userStore.getRoleList?.includes(value as RoleEnum);
      }
      return (intersection(value, userStore.getRoleList) as RoleEnum[]).length > 0;
    }

    if (PermissionModeEnum.BACK === permMode) {
      const allCodeList = permissionStore.getPermCodeList as string[];
      if (!isArray(value)) {
        return allCodeList.includes(value);
      }
      return (intersection(value, allCodeList) as string[]).length > 0;
    }
    return true;
  }

  
  async function changeRole(roles: RoleEnum | RoleEnum[]): Promise {
    if (projectSetting.permissionMode !== PermissionModeEnum.ROUTE_MAPPING) {
      throw new Error(
        'Please switch PermissionModeEnum to ROUTE_MAPPING mode in the configuration to operate!',
      );
    }

    if (!isArray(roles)) {
      roles = [roles];
    }
    userStore.setRoleList(roles);
    await resume();
  }

  
  async function refreshMenu() {
    resume();
  }

  return { changeRole, hasPermission, togglePermissionMode, refreshMenu };
}