From edc1bd677b1a9fe79d889ac9ba2f8295aa5a2aca Mon Sep 17 00:00:00 2001
From: Anthony Fu <anthonyfu117@hotmail.com>
Date: Wed, 23 Nov 2022 18:30:18 +0800
Subject: [PATCH] chore: improve types (#115)

* wip: improve types

* feat: improve types

* Apply suggestions from code review

Co-authored-by: Sylvain Marroufin <marroufin.sylvain@gmail.com>

* chore: update

* chore: enable ci typecheck

* chore: fix

Co-authored-by: Sylvain Marroufin <marroufin.sylvain@gmail.com>
---
 .github/workflows/ci-dev.yml                  |  3 +++
 .github/workflows/ci.yml                      |  3 +++
 build.config.ts                               | 12 +++++++++++
 docs/app.vue                                  |  7 +++++++
 docs/nuxt.config.ts                           |  9 ---------
 package.json                                  |  2 ++
 src/env.d.ts                                  |  6 ++++++
 src/runtime/components/elements/Button.vue    |  4 ++--
 src/runtime/components/elements/Dropdown.vue  |  5 +++--
 src/runtime/components/elements/Icon.vue      | 12 +++++++----
 src/runtime/components/elements/Link.vue      |  5 +++--
 src/runtime/components/feedback/Alert.vue     |  2 +-
 src/runtime/components/forms/Checkbox.vue     |  2 +-
 src/runtime/components/forms/Input.vue        | 11 +++++-----
 src/runtime/components/forms/Select.vue       |  2 +-
 src/runtime/components/forms/SelectCustom.vue |  8 ++++----
 src/runtime/components/forms/Textarea.vue     |  7 +++----
 .../components/navigation/CommandPalette.vue  |  3 ++-
 .../navigation/CommandPaletteGroup.vue        |  2 +-
 .../navigation/VerticalNavigation.vue         |  2 +-
 .../components/overlays/ContextMenu.vue       |  3 ++-
 .../components/overlays/Notification.vue      |  3 ++-
 .../components/overlays/Notifications.vue     |  3 ++-
 src/runtime/components/overlays/Popover.vue   |  5 +++--
 src/runtime/composables/usePopper.ts          | 20 ++++++++++---------
 src/runtime/composables/useTimer.ts           |  6 +++---
 src/runtime/plugins/toast.client.ts           |  3 +--
 src/runtime/presets/default.ts                |  4 +++-
 src/runtime/types/toast.d.ts                  | 11 ++++++----
 tsconfig.json                                 | 13 +++++++++++-
 30 files changed, 114 insertions(+), 64 deletions(-)
 create mode 100644 build.config.ts
 create mode 100644 src/env.d.ts

diff --git a/.github/workflows/ci-dev.yml b/.github/workflows/ci-dev.yml
index 149cc312..416392a0 100644
--- a/.github/workflows/ci-dev.yml
+++ b/.github/workflows/ci-dev.yml
@@ -41,6 +41,9 @@ jobs:
       - name: Lint
         run: yarn lint
 
+      - name: Typecheck
+        run: yarn typecheck
+
       - name: Build
         run: yarn build
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb3e0e54..60c29081 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,9 @@ jobs:
       - name: Lint
         run: yarn lint
 
+      - name: Typecheck
+        run: yarn typecheck
+
       - name: Build
         run: yarn build
 
diff --git a/build.config.ts b/build.config.ts
new file mode 100644
index 00000000..f00cb933
--- /dev/null
+++ b/build.config.ts
@@ -0,0 +1,12 @@
+import fs from 'node:fs/promises'
+import { join, resolve } from 'node:path'
+import { defineBuildConfig } from 'unbuild'
+
+export default defineBuildConfig({
+  hooks: {
+    'rollup:done': async (ctx) => {
+      // copy env.d.ts to dist
+      await fs.copyFile(resolve('src/env.d.ts'), join(ctx.options.outDir, 'env.d.ts'))
+    }
+  }
+})
diff --git a/docs/app.vue b/docs/app.vue
index 9016361e..2f3615c8 100644
--- a/docs/app.vue
+++ b/docs/app.vue
@@ -60,6 +60,13 @@
 
 <script setup>
 useHead({
+  title: '@nuxthq/ui',
+  meta: [
+    { name: 'viewport', content: 'width=device-width, initial-scale=1, maximum-scale=1' }
+  ],
+  link: [
+    { rel: 'stylesheet', href: 'https://rsms.me/inter/inter.css' }
+  ],
   bodyAttrs: {
     class: 'antialiased font-sans text-gray-700 bg-gray-50 dark:bg-gray-900 dark:text-gray-200 bg-white dark:bg-black'
   }
diff --git a/docs/nuxt.config.ts b/docs/nuxt.config.ts
index be714857..2f195fe8 100644
--- a/docs/nuxt.config.ts
+++ b/docs/nuxt.config.ts
@@ -3,15 +3,6 @@ import nuxtUI from '../src/module'
 
 // https://v3.nuxtjs.org/docs/directory-structure/nuxt.config
 export default defineNuxtConfig({
-  meta: {
-    title: '@nuxthq/ui',
-    meta: [
-      { name: 'viewport', content: 'width=device-width, initial-scale=1, maximum-scale=1' }
-    ],
-    link: [
-      { rel: 'stylesheet', href: 'https://rsms.me/inter/inter.css' }
-    ]
-  },
   modules: [
     nuxtUI
   ],
diff --git a/package.json b/package.json
index 196703ff..d16abbe2 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "dev": "nuxi dev docs",
     "build:docs": "nuxi generate docs",
     "lint": "eslint --ext .ts,.js,.vue .",
+    "typecheck": "nuxi typecheck",
     "prepare": "nuxi prepare docs",
     "release": "yarn lint && standard-version && git push --follow-tags"
   },
@@ -48,6 +49,7 @@
     "eslint": "^8.27.0",
     "nuxt": "^3.0.0",
     "standard-version": "^9.5.0",
+    "unbuild": "^1.0.1",
     "vue-tsc": "^1.0.9"
   },
   "build": {
diff --git a/src/env.d.ts b/src/env.d.ts
new file mode 100644
index 00000000..4c0a72c9
--- /dev/null
+++ b/src/env.d.ts
@@ -0,0 +1,6 @@
+import type { DefaultPreset } from './runtime/presets/default'
+
+declare module '#build/ui' {
+  declare const preset: DefaultPreset
+  export default preset
+}
diff --git a/src/runtime/components/elements/Button.vue b/src/runtime/components/elements/Button.vue
index 1413677c..cd1335df 100644
--- a/src/runtime/components/elements/Button.vue
+++ b/src/runtime/components/elements/Button.vue
@@ -6,9 +6,9 @@
     :aria-label="ariaLabel"
     v-bind="buttonProps"
   >
-    <Icon v-if="isLeading" :name="leadingIconName" :class="leadingIconClass" aria-hidden="true" />
+    <Icon v-if="isLeading && leadingIconName" :name="leadingIconName" :class="leadingIconClass" aria-hidden="true" />
     <slot><span :class="truncate ? 'text-left break-all line-clamp-1' : ''">{{ label }}</span></slot>
-    <Icon v-if="isTrailing" :name="trailingIconName" :class="trailingIconClass" aria-hidden="true" />
+    <Icon v-if="isTrailing && trailingIconName" :name="trailingIconName" :class="trailingIconClass" aria-hidden="true" />
   </component>
 </template>
 
diff --git a/src/runtime/components/elements/Dropdown.vue b/src/runtime/components/elements/Dropdown.vue
index a8383c23..9bcbecd3 100644
--- a/src/runtime/components/elements/Dropdown.vue
+++ b/src/runtime/components/elements/Dropdown.vue
@@ -38,7 +38,7 @@ import {
   MenuItems,
   MenuItem
 } from '@headlessui/vue'
-import type { Ref, PropType } from 'vue'
+import type { PropType } from 'vue'
 import type { RouteLocationNormalized } from 'vue-router'
 import { ref, computed, onMounted } from 'vue'
 import { defu } from 'defu'
@@ -153,13 +153,14 @@ function resolveItemClass ({ active, disabled }: { active: boolean, disabled: bo
 }
 
 // https://github.com/tailwindlabs/headlessui/blob/f66f4926c489fc15289d528294c23a3dc2aee7b1/packages/%40headlessui-vue/src/components/menu/menu.ts#L131
-const menuApi: Ref<any> = ref(null)
+const menuApi = ref<any>(null)
 
 let openTimeout: NodeJS.Timeout | null = null
 let closeTimeout: NodeJS.Timeout | null = null
 
 onMounted(() => {
   setTimeout(() => {
+    // @ts-expect-error internals
     const menuProvides = trigger.value?.$.provides
     if (!menuProvides) {
       return
diff --git a/src/runtime/components/elements/Icon.vue b/src/runtime/components/elements/Icon.vue
index 420588d7..78b523f9 100644
--- a/src/runtime/components/elements/Icon.vue
+++ b/src/runtime/components/elements/Icon.vue
@@ -18,15 +18,19 @@ const props = defineProps({
   }
 })
 const nuxtApp = useNuxtApp()
-const state = useState('u-icons', () => ({}))
+const state = useState<Record<string, Required<IconifyIcon> | Promise<void> | null>>('u-icons', () => ({}))
 
-const isFetching = computed(() => !!state.value?.[props.name]?.then)
-const icon = computed<IconifyIcon | null>(() => !state.value?.[props.name] || state.value[props.name].then ? null : state.value[props.name])
+const isFetching = computed(() => state.value?.[props.name] && ('then' in state.value?.[props.name]!))
+const icon = computed<Required<IconifyIcon> | null>(() =>
+  !state.value?.[props.name] || 'then' in state.value[props.name]!
+    ? null
+    : state.value[props.name] as Required<IconifyIcon>
+)
 const component = computed(() => nuxtApp.vueApp.component(props.name))
 
 const loadIconComponent = (name: string) => {
   state.value = state.value || {}
-  if (nuxtApp.vueApp.component(props.name) || state.value[name] || state.value[name] === null) { return state.value[name] }
+  if (nuxtApp.vueApp.component(props.name) || state.value[name] || state.value[name] == null) { return state.value[name] }
 
   state.value[name] = loadIcon(name)
     .then((res) => { state.value[name] = res })
diff --git a/src/runtime/components/elements/Link.vue b/src/runtime/components/elements/Link.vue
index af23e307..1034e46b 100644
--- a/src/runtime/components/elements/Link.vue
+++ b/src/runtime/components/elements/Link.vue
@@ -8,7 +8,7 @@
   <router-link
     v-else
     v-slot="{ href, navigate, isActive, isExactActive }"
-    v-bind="$props"
+    v-bind="$props as RouterLinkProps"
     custom
   >
     <a
@@ -25,10 +25,11 @@
 <script setup lang="ts">
 import { computed } from 'vue'
 import type { PropType } from 'vue'
-import type { RouteLocationNormalized } from 'vue-router'
+import type { RouteLocationNormalized, RouterLinkProps } from 'vue-router'
 import { RouterLink } from 'vue-router'
 
 const props = defineProps({
+  // @ts-expect-error internal props
   ...RouterLink.props,
   to: {
     type: [String, Object] as PropType<string | RouteLocationNormalized>,
diff --git a/src/runtime/components/feedback/Alert.vue b/src/runtime/components/feedback/Alert.vue
index b6d8ccf2..c6a5a5ee 100644
--- a/src/runtime/components/feedback/Alert.vue
+++ b/src/runtime/components/feedback/Alert.vue
@@ -2,7 +2,7 @@
   <div class="rounded-md p-4" :class="variantClass">
     <div class="flex">
       <div class="flex-shrink-0">
-        <Icon :name="iconName" :class="iconClass" class="h-5 w-5" />
+        <Icon v-if="iconName" :name="iconName" :class="iconClass" class="h-5 w-5" />
       </div>
       <div class="ml-3 flex-1 md:flex md:justify-between">
         <p v-if="title" class="text-sm leading-5" :class="titleClass">
diff --git a/src/runtime/components/forms/Checkbox.vue b/src/runtime/components/forms/Checkbox.vue
index 3ef65f96..2cf95174 100644
--- a/src/runtime/components/forms/Checkbox.vue
+++ b/src/runtime/components/forms/Checkbox.vue
@@ -90,7 +90,7 @@ const emit = defineEmits(['update:modelValue', 'focus', 'blur'])
 
 const isChecked = computed({
   get () {
-    return props.modelValue
+    return !!props.modelValue
   },
   set (value) {
     emit('update:modelValue', value)
diff --git a/src/runtime/components/forms/Input.vue b/src/runtime/components/forms/Input.vue
index 76445e3d..320a5f3c 100644
--- a/src/runtime/components/forms/Input.vue
+++ b/src/runtime/components/forms/Input.vue
@@ -13,22 +13,21 @@
       :autocomplete="autocomplete"
       :spellcheck="spellcheck"
       :class="inputClass"
-      @input="onInput($event.target.value)"
+      @input="onInput(($event.target as any).value)"
       @focus="$emit('focus', $event)"
       @blur="$emit('blur', $event)"
     >
     <slot />
     <div v-if="isLeading" :class="iconLeadingWrapperClass">
-      <Icon :name="iconName" :class="iconClass" />
+      <Icon v-if="iconName" :name="iconName" :class="iconClass" />
     </div>
     <div v-if="isTrailing" :class="iconTrailingWrapperClass">
-      <Icon :name="iconName" :class="iconClass" />
+      <Icon v-if="iconName" :name="iconName" :class="iconClass" />
     </div>
   </div>
 </template>
 
 <script setup lang="ts">
-import type { Ref } from 'vue'
 import { ref, computed, onMounted } from 'vue'
 import Icon from '../elements/Icon.vue'
 import { classNames } from '../../utils'
@@ -129,11 +128,11 @@ const props = defineProps({
 
 const emit = defineEmits(['update:modelValue', 'focus', 'blur'])
 
-const input: Ref<HTMLInputElement> = ref(null)
+const input = ref<HTMLInputElement | null>(null)
 
 const autoFocus = () => {
   if (props.autofocus) {
-    input.value.focus()
+    input.value?.focus()
   }
 }
 
diff --git a/src/runtime/components/forms/Select.vue b/src/runtime/components/forms/Select.vue
index 7ef78281..fe93d99d 100644
--- a/src/runtime/components/forms/Select.vue
+++ b/src/runtime/components/forms/Select.vue
@@ -7,7 +7,7 @@
       :required="required"
       :disabled="disabled"
       :class="selectClass"
-      @input="onInput($event.target.value)"
+      @input="onInput(($event.target as any).value)"
     >
       <template v-for="(option, index) in normalizedOptionsWithPlaceholder">
         <optgroup
diff --git a/src/runtime/components/forms/SelectCustom.vue b/src/runtime/components/forms/SelectCustom.vue
index bed6b649..6a3a8f40 100644
--- a/src/runtime/components/forms/SelectCustom.vue
+++ b/src/runtime/components/forms/SelectCustom.vue
@@ -16,12 +16,12 @@
       <slot :open="open" :disabled="buttonDisabled">
         <button :class="selectCustomClass" :disabled="disabled" type="button">
           <slot name="label">
-            <span v-if="modelValue" class="block truncate">{{ modelValue[textAttribute] }}</span>
+            <span v-if="modelValue" class="block truncate">{{ (modelValue as any)[textAttribute] }}</span>
             <span v-else class="block truncate u-text-gray-400">{{ placeholder }}</span>
           </slot>
           <slot name="icon">
             <span :class="iconWrapperClass">
-              <Icon :name="icon" :class="iconClass" aria-hidden="true" />
+              <Icon v-if="icon" :name="icon" :class="iconClass" aria-hidden="true" />
             </span>
           </slot>
         </button>
@@ -58,7 +58,7 @@
               </div>
 
               <span v-if="selected" :class="resolveOptionIconClass({ active })">
-                <Icon :name="listOptionIcon" :class="listOptionIconSizeClass" aria-hidden="true" />
+                <Icon v-if="listOptionIcon" :name="listOptionIcon" :class="listOptionIconSizeClass" aria-hidden="true" />
               </span>
             </li>
           </ComboboxOption>
@@ -323,7 +323,7 @@ function resolveOptionIconClass ({ active }: { active: boolean }) {
   )
 }
 
-function onUpdate (event) {
+function onUpdate (event: any) {
   if (query.value && searchInput.value?.$el) {
     query.value = ''
     // explicitly set input text because `ComboboxInput` `displayValue` is not reactive
diff --git a/src/runtime/components/forms/Textarea.vue b/src/runtime/components/forms/Textarea.vue
index 6dc2f502..1ed5c329 100644
--- a/src/runtime/components/forms/Textarea.vue
+++ b/src/runtime/components/forms/Textarea.vue
@@ -11,7 +11,7 @@
       :placeholder="placeholder"
       :autocomplete="autocomplete"
       :class="textareaClass"
-      @input="onInput($event.target.value)"
+      @input="onInput(($event.target as any).value)"
       @focus="$emit('focus', $event)"
       @blur="$emit('blur', $event)"
     />
@@ -19,7 +19,6 @@
 </template>
 
 <script setup lang="ts">
-import type { Ref } from 'vue'
 import { ref, computed, watch, onMounted, nextTick } from 'vue'
 import { classNames } from '../../utils'
 import $ui from '#build/ui'
@@ -95,11 +94,11 @@ const props = defineProps({
 
 const emit = defineEmits(['update:modelValue', 'focus', 'blur'])
 
-const textarea: Ref<HTMLTextAreaElement> = ref(null)
+const textarea = ref<HTMLTextAreaElement | null>(null)
 
 const autoFocus = () => {
   if (props.autofocus) {
-    textarea.value.focus()
+    textarea.value?.focus()
   }
 }
 
diff --git a/src/runtime/components/navigation/CommandPalette.vue b/src/runtime/components/navigation/CommandPalette.vue
index b56ac633..a8c993c4 100644
--- a/src/runtime/components/navigation/CommandPalette.vue
+++ b/src/runtime/components/navigation/CommandPalette.vue
@@ -134,6 +134,7 @@ onMounted(() => {
 
 onMounted(() => {
   setTimeout(() => {
+    // @ts-expect-error internals
     const popoverProvides = comboboxInput.value?.$.provides
     if (!popoverProvides) {
       return
@@ -203,7 +204,7 @@ function onClear () {
 }
 
 defineExpose({
-  updateQuery: (q) => {
+  updateQuery: (q: string) => {
     query.value = q
   },
   comboboxApi,
diff --git a/src/runtime/components/navigation/CommandPaletteGroup.vue b/src/runtime/components/navigation/CommandPaletteGroup.vue
index 03852727..7a4f93fd 100644
--- a/src/runtime/components/navigation/CommandPaletteGroup.vue
+++ b/src/runtime/components/navigation/CommandPaletteGroup.vue
@@ -72,7 +72,7 @@ defineProps({
   }
 })
 
-function highlight ({ indices, value }, i = 1) {
+function highlight ({ indices, value }: { indices: number[][], value:string }, i = 1): string {
   const pair = indices[indices.length - i]
   if (!pair) {
     return value
diff --git a/src/runtime/components/navigation/VerticalNavigation.vue b/src/runtime/components/navigation/VerticalNavigation.vue
index 66ea61a9..0dec1e7c 100644
--- a/src/runtime/components/navigation/VerticalNavigation.vue
+++ b/src/runtime/components/navigation/VerticalNavigation.vue
@@ -5,7 +5,7 @@
       v-slot="{ isActive }"
       :key="index"
       v-bind="link"
-      :class="[baseClass, spacingClass]"
+      :class="[baseClass, spacingClass].join(' ')"
       :active-class="activeClass"
       :inactive-class="inactiveClass"
       @click="link.click && link.click()"
diff --git a/src/runtime/components/overlays/ContextMenu.vue b/src/runtime/components/overlays/ContextMenu.vue
index a86ee963..55c3fb6d 100644
--- a/src/runtime/components/overlays/ContextMenu.vue
+++ b/src/runtime/components/overlays/ContextMenu.vue
@@ -12,6 +12,7 @@
 import type { PropType } from 'vue'
 import { computed, toRef } from 'vue'
 import { defu } from 'defu'
+import type { VirtualElement } from '@popperjs/core'
 import { usePopper } from '../../composables/usePopper'
 import type { PopperOptions } from '../../types'
 import $ui from '#build/ui'
@@ -22,7 +23,7 @@ const props = defineProps({
     default: false
   },
   virtualElement: {
-    type: Object,
+    type: Object as PropType<VirtualElement>,
     required: true
   },
   wrapperClass: {
diff --git a/src/runtime/components/overlays/Notification.vue b/src/runtime/components/overlays/Notification.vue
index c7f07e54..2bd746dd 100644
--- a/src/runtime/components/overlays/Notification.vue
+++ b/src/runtime/components/overlays/Notification.vue
@@ -56,6 +56,7 @@ import type { PropType } from 'vue'
 import Icon from '../elements/Icon.vue'
 import { useTimer } from '../../composables/useTimer'
 import { classNames } from '../../utils'
+import type { ToastNotificationAction } from '../../types'
 import $ui from '#build/ui'
 
 const props = defineProps({
@@ -172,7 +173,7 @@ function onClose () {
   emit('close')
 }
 
-function onAction (action) {
+function onAction (action: ToastNotificationAction) {
   if (timer) {
     timer.stop()
   }
diff --git a/src/runtime/components/overlays/Notifications.vue b/src/runtime/components/overlays/Notifications.vue
index 0ef52bc7..c20beaad 100644
--- a/src/runtime/components/overlays/Notifications.vue
+++ b/src/runtime/components/overlays/Notifications.vue
@@ -17,11 +17,12 @@
 </template>
 
 <script setup lang="ts">
+import type { ToastNotification } from '../../types'
 import Notification from './Notification.vue'
 import { useNuxtApp, useState } from '#imports'
 
 const { $toast } = useNuxtApp()
-const notifications = useState('notifications', () => [])
+const notifications = useState<ToastNotification[]>('notifications', () => [])
 </script>
 
 <script lang="ts">
diff --git a/src/runtime/components/overlays/Popover.vue b/src/runtime/components/overlays/Popover.vue
index 174dc09c..1d4a52e7 100644
--- a/src/runtime/components/overlays/Popover.vue
+++ b/src/runtime/components/overlays/Popover.vue
@@ -17,8 +17,8 @@
 </template>
 
 <script setup lang="ts">
-import type { Ref, PropType } from 'vue'
 import { computed, ref, onMounted } from 'vue'
+import type { PropType } from 'vue'
 import { defu } from 'defu'
 import { Popover, PopoverButton, PopoverPanel } from '@headlessui/vue'
 import { usePopper } from '../../composables/usePopper'
@@ -72,13 +72,14 @@ const popperOptions = computed<PopperOptions>(() => defu({}, props.popperOptions
 const [trigger, container] = usePopper(popperOptions.value)
 
 // https://github.com/tailwindlabs/headlessui/blob/f66f4926c489fc15289d528294c23a3dc2aee7b1/packages/%40headlessui-vue/src/components/popover/popover.ts#L151
-const popoverApi: Ref<any> = ref(null)
+const popoverApi = ref<any>(null)
 
 let openTimeout: NodeJS.Timeout | null = null
 let closeTimeout: NodeJS.Timeout | null = null
 
 onMounted(() => {
   setTimeout(() => {
+    // @ts-expect-error internals
     const popoverProvides = trigger.value?.$.provides
     if (!popoverProvides) {
       return
diff --git a/src/runtime/composables/usePopper.ts b/src/runtime/composables/usePopper.ts
index 4b0a21ad..7ce754cf 100644
--- a/src/runtime/composables/usePopper.ts
+++ b/src/runtime/composables/usePopper.ts
@@ -1,6 +1,6 @@
 import { ref, onMounted, watchEffect } from 'vue'
 import type { Ref } from 'vue'
-import { popperGenerator, defaultModifiers } from '@popperjs/core/lib/popper-lite'
+import { popperGenerator, defaultModifiers, VirtualElement } from '@popperjs/core/lib/popper-lite'
 import type { Instance } from '@popperjs/core'
 import { omitBy, isUndefined } from 'lodash-es'
 import flip from '@popperjs/core/lib/modifiers/flip'
@@ -8,6 +8,7 @@ import offset from '@popperjs/core/lib/modifiers/offset'
 import preventOverflow from '@popperjs/core/lib/modifiers/preventOverflow'
 import computeStyles from '@popperjs/core/lib/modifiers/computeStyles'
 import eventListeners from '@popperjs/core/lib/modifiers/eventListeners'
+import { MaybeElement, unrefElement } from '@vueuse/core'
 import type { PopperOptions } from '../types'
 
 export const createPopper = popperGenerator({
@@ -25,21 +26,22 @@ export function usePopper ({
   resize = true,
   placement,
   strategy
-}: PopperOptions, virtualReference: Ref<Object> = null) {
-  const reference: Ref<HTMLElement> = ref(null)
-  const popper: Ref<HTMLElement> = ref(null)
-  const instance: Ref<Instance> = ref(null)
+}: PopperOptions, virtualReference?: Ref<Element | VirtualElement>) {
+  const reference = ref<MaybeElement>(null)
+  const popper = ref<MaybeElement>(null)
+  const instance = ref<Instance | null>(null)
 
   onMounted(() => {
     watchEffect((onInvalidate) => {
       if (!popper.value) { return }
-      if (!reference.value && !virtualReference.value) { return }
+      if (!reference.value && !virtualReference?.value) { return }
 
-      const popperEl = popper.value.$el || popper.value
-      const referenceEl = virtualReference?.value || reference.value.$el || reference.value
+      const popperEl = unrefElement(popper)
+      const referenceEl = virtualReference?.value || unrefElement(reference)
 
       // if (!(referenceEl instanceof HTMLElement)) { return }
       if (!(popperEl instanceof HTMLElement)) { return }
+      if (!referenceEl) { return }
 
       instance.value = createPopper(referenceEl, popperEl, omitBy({
         placement,
@@ -76,5 +78,5 @@ export function usePopper ({
     })
   })
 
-  return [reference, popper, instance]
+  return [reference, popper, instance] as const
 }
diff --git a/src/runtime/composables/useTimer.ts b/src/runtime/composables/useTimer.ts
index 2d02a05c..bf92124e 100644
--- a/src/runtime/composables/useTimer.ts
+++ b/src/runtime/composables/useTimer.ts
@@ -1,10 +1,10 @@
-import { Ref, ref, computed } from 'vue-demi'
+import { ref, computed } from 'vue-demi'
 import { useTimestamp } from '@vueuse/core'
 
 export function useTimer (cb: (...args: unknown[]) => any, interval: number) {
   let timer: number | null = null
   const timestamp = useTimestamp({ controls: true })
-  const startTime: Ref<number | null> = ref(null)
+  const startTime = ref<number | null>(null)
 
   const remaining = computed(() => {
     if (!startTime.value) {
@@ -46,7 +46,7 @@ export function useTimer (cb: (...args: unknown[]) => any, interval: number) {
   }
 
   function resume () {
-    startTime.value += (Date.now() - timestamp.timestamp.value)
+    startTime.value = (startTime.value || 0) + (Date.now() - timestamp.timestamp.value)
     timestamp.resume()
     set()
   }
diff --git a/src/runtime/plugins/toast.client.ts b/src/runtime/plugins/toast.client.ts
index 8022d867..43c9366a 100644
--- a/src/runtime/plugins/toast.client.ts
+++ b/src/runtime/plugins/toast.client.ts
@@ -1,9 +1,8 @@
-import type { Ref } from 'vue'
 import { defineNuxtPlugin, useState } from '#app'
 import type { ToastNotification } from '../types'
 
 export default defineNuxtPlugin(() => {
-  const notifications: Ref<ToastNotification[]> = useState('notifications', () => [])
+  const notifications = useState<ToastNotification[]>('notifications', () => [])
 
   function addNotification (notification: Partial<ToastNotification>) {
     const body = {
diff --git a/src/runtime/presets/default.ts b/src/runtime/presets/default.ts
index 71fabca1..3cfe133f 100644
--- a/src/runtime/presets/default.ts
+++ b/src/runtime/presets/default.ts
@@ -1,4 +1,4 @@
-export default (variantColors: string[]) => {
+export default function defaultPreset (variantColors: string[]) {
   const button = {
     base: 'font-medium focus:outline-none disabled:cursor-not-allowed disabled:opacity-75 focus:ring-offset-white dark:focus:ring-offset-black',
     rounded: 'rounded-md',
@@ -570,3 +570,5 @@ export default (variantColors: string[]) => {
     contextMenu
   }
 }
+
+export type DefaultPreset = ReturnType<typeof defaultPreset>
diff --git a/src/runtime/types/toast.d.ts b/src/runtime/types/toast.d.ts
index d312a76f..01512e8b 100644
--- a/src/runtime/types/toast.d.ts
+++ b/src/runtime/types/toast.d.ts
@@ -1,3 +1,8 @@
+export interface ToastNotificationAction {
+  label: string,
+  click: Function
+}
+
 export interface ToastNotification {
   id: string
   title: string
@@ -5,10 +10,8 @@ export interface ToastNotification {
   type: string
   icon?: string
   timeout: number
-  actions?: {
-    label: string,
-    click: Function
-  }[]
+  actions?: ToastNotificationAction[]
+  click?: Function
   callback?: Function
 }
 
diff --git a/tsconfig.json b/tsconfig.json
index 5546ac7f..22b03ad3 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,3 +1,14 @@
 {
-  "extends": "./docs/.nuxt/tsconfig.json"
+  "extends": "./docs/.nuxt/tsconfig.json",
+  "compilerOptions": {
+    "module": "esnext"
+  },
+  "include": [
+    "./**/*",
+    "./docs/.nuxt/nuxt.d.ts"
+  ],
+  "exclude": [
+    "node_modules",
+    "dist"
+  ]
 }