perf: ♻️ Use global instance of composable instead of an instance per component for identities, client and settings

app.vue

@@ -1,6 +1,5 @@
 <template>
     <NuxtPwaAssets />
-    <Loading />
     <ClientOnly>
         <NuxtLayout>
             <NuxtPage />
@@ -13,15 +12,12 @@
 import "~/styles/theme.css";
 import { convert } from "html-to-text";
 import "iconify-icon";
-import Loading from "./components/loading.vue";
 import NotificationsRenderer from "./components/notifications/notifications-renderer.vue";
 // Use SSR-safe IDs for Headless UI
 provideHeadlessUseId(() => useId());
 
 const code = useRequestURL().searchParams.get("code");
 const appData = useAppData();
-const identity = useCurrentIdentity();
-const client = useClient();
 const instance = useInstance();
 const description = useExtendedDescription(client);
 

components/composer/composer.vue

@@ -60,7 +60,6 @@ const { Control_Enter, Command_Enter, Control_Alt } = useMagicKeys();
 const content = ref("");
 const respondingTo = ref<Status | null>(null);
 const respondingType = ref<"reply" | "quote" | "edit" | null>(null);
-const identity = useCurrentIdentity();
 const cw = ref(false);
 const cwContent = ref("");
 const markdown = ref(true);
@@ -178,7 +177,6 @@ const canSubmit = computed(
         (content.value?.trim().length > 0 || files.value.length > 0) &&
         content.value?.trim().length <= characterLimit.value,
 );
-const client = useClient();
 
 const send = async () => {
     loading.value = true;

components/composer/emoji-suggestbox.vue

@@ -19,7 +19,6 @@ defineProps<{
     textarea: HTMLTextAreaElement | undefined;
 }>();
 
-const identity = useCurrentIdentity();
 const emojis = computed(
     () =>
         identity.value?.emojis.map((emoji) => ({

components/composer/file-uploader.vue

@@ -74,7 +74,6 @@ const files = defineModel<
     required: true,
 });
 
-const client = useClient();
 const fileInput = ref<HTMLInputElement | null>(null);
 
 const openFilePicker = () => {

components/composer/mention-suggestbox.vue

@@ -18,7 +18,6 @@ const props = defineProps<{
     textarea: HTMLTextAreaElement | undefined;
 }>();
 
-const client = useClient();
 const mentions = ref<{ key: string; value: Account }[]>([]);
 
 watch(

components/composer/modal.client.vue

@@ -34,7 +34,6 @@ import { Dialog } from "@ark-ui/vue";
 import Composer from "./composer.vue";
 const open = ref(false);
 
-const identity = useCurrentIdentity();
 useListen("note:reply", async (note) => {
     open.value = true;
     await nextTick();

components/headers/greeting.vue

@@ -18,8 +18,6 @@
 <script lang="ts" setup>
 import Avatar from "../avatars/avatar.vue";
 
-const identity = useCurrentIdentity();
-const settings = useSettings();
 const { display_name } = useParsedAccount(
     computed(() => identity.value?.account),
     settings,

components/settings/oidc.vue

@@ -32,7 +32,6 @@ import type { ResponseError } from "@lysand-org/client";
 import Button from "~/packages/ui/components/buttons/button.vue";
 import Avatar from "../avatars/avatar.vue";
 
-const client = useClient();
 const ssoConfig = useSSOConfig();
 const linkedProviders = useLinkedSSO(client);
 const loading = ref(false);

components/settings/profile-editor.vue

@@ -52,7 +52,6 @@ import RichTextboxInput from "../inputs/rich-textbox-input.vue";
 import TextInput from "../inputs/text-input.vue";
 import Oidc from "./oidc.vue";
 
-const identity = useCurrentIdentity();
 const account = computed(() => identity.value?.account);
 const note = ref(account.value?.source?.note ?? "");
 const displayName = ref(account.value?.display_name ?? "");
@@ -61,7 +60,6 @@ const bio = computed(
     () => identity.value?.instance.configuration.statuses.max_characters ?? 0,
 );
 
-const client = useClient();
 const loading = ref(false);
 
 const revert = () => {

components/sidebars/account-picker.vue

@@ -3,16 +3,16 @@
         <template #button>
             <slot>
                 <div class="rounded text-left flex flex-row gap-x-2 hover:scale-[95%] duration-100"
-                    v-if="currentIdentity">
+                    v-if="identity">
                     <div class="shrink-0">
-                        <Avatar class="size-12 rounded ring-1 ring-white/5" :src="currentIdentity.account.avatar"
-                            :alt="`${currentIdentity.account.acct}'s avatar'`" />
+                        <Avatar class="size-12 rounded ring-1 ring-white/5" :src="identity.account.avatar"
+                            :alt="`${identity.account.acct}'s avatar'`" />
                     </div>
                     <div class="flex flex-col items-start p-1 justify-around grow overflow-hidden">
                         <div class="flex flex-row items-center justify-between w-full">
                             <div class="font-semibold text-gray-200 text-sm line-clamp-1 break-all">
                                 {{
-                                    currentIdentity.account.display_name }}
+                                    identity.account.display_name }}
                             </div>
                         </div>
                         <span class="text-gray-400 text-xs line-clamp-1 break-all w-full">
@@ -59,7 +59,7 @@
                         </button>
                     </div>
                 </Menu.Item>
-                <Menu.Item value="" v-if="currentIdentity">
+                <Menu.Item value="" v-if="identity">
                     <NuxtLink href="/settings" class="w-full">
                         <ButtonBase theme="outline" class="w-full !justify-start">
                             <Icon icon="tabler:adjustments" class="!size-6" />
@@ -73,7 +73,7 @@
                         <span class="shrink-0 line-clamp-1">Add new account</span>
                     </ButtonBase>
                 </Menu.Item>
-                <Menu.Item value="" v-if="!currentIdentity">
+                <Menu.Item value="" v-if="!identity">
                     <NuxtLink href="/register" class="w-full">
                         <ButtonBase theme="outline" class="w-full !justify-start">
                             <Icon icon="tabler:certificate" class="!size-6" />
@@ -92,9 +92,6 @@ import ButtonBase from "~/packages/ui/components/buttons/button.vue";
 import Icon from "~/packages/ui/components/icons/icon.vue";
 import Avatar from "../avatars/avatar.vue";
 import AdaptiveDropdown from "../dropdowns/AdaptiveDropdown.vue";
-const identities = useIdentities();
-
-const currentIdentity = useCurrentIdentity();
 
 defineEmits<{
     signIn: [];

components/sidebars/navigation.vue

@@ -139,9 +139,6 @@ const visibleTimelines = computed(() =>
 const loadingAuth = ref(false);
 
 const appData = useAppData();
-const identity = useCurrentIdentity();
-const identities = useIdentities();
-const client = useClient();
 const instance = useInstance();
 
 const compose = () => {

components/social-elements/instance/Presentation.vue

@@ -21,7 +21,6 @@
 <script lang="ts" setup>
 import SmallCard from "../users/SmallCard.vue";
 
-const client = useClient();
 const instance = useInstance();
 const description = useExtendedDescription(client);
 </script>

components/social-elements/notes/mention.vue

@@ -1,9 +1,9 @@
 <template>
     <a :href="`/@${account.acct}`"
-        class="shrink break-all rounded bg-primary-700/80 text-primary-200 px-2 py-1 not-prose font-semibold cursor-pointer [&:not(:last-child)]:mr-1 duration-200 hover:bg-primary-600/30">
+        class="shrink break-all rounded bg-dark-200 ring-1 ring-white/5 ring-inset text-primary-200 px-2 py-1 not-prose font-semibold cursor-pointer [&:not(:last-child)]:mr-1 duration-200 hover:bg-primary-600/30">
         <img class="size-[1em] rounded ring-1 ring-white/5 !inline align-middle mb-1 mr-1" :src="account.avatar"
             :alt="`${account.acct}'s avatar'`" />
-        {{ account.display_name }}
+        {{ account.display_name || account.acct }}
     </a>
 </template>
 

components/social-elements/notes/note.vue

@@ -176,9 +176,6 @@ useListen("composer:send-edit", (note) => {
     }
 });
 
-const client = useClient();
-const identity = useCurrentIdentity();
-const settings = useSettings();
 const {
     loaded,
     note: outputtedNote,

components/social-elements/notes/reply-header.vue

@@ -18,6 +18,5 @@ const props = defineProps<{
     account_id: string | null;
 }>();
 
-const client = useClient();
 const account = useAccount(client, props.account_id);
 </script>

components/social-elements/notifications/notif.vue

@@ -39,7 +39,6 @@ const props = defineProps<{
     element?: Notification;
 }>();
 
-const client = useClient();
 const isWorkingOnFollowRequest = ref(false);
 const { relationship } = useRelationship(
     client,
@@ -70,7 +69,6 @@ const rejectFollowRequest = async () => {
     isWorkingOnFollowRequest.value = false;
 };
 
-const settings = useSettings();
 const { display_name } = useParsedAccount(props.element?.account, settings);
 
 const text = computed(() => {

components/social-elements/users/Account.vue

@@ -109,8 +109,6 @@ const props = defineProps<{
 }>();
 
 const skeleton = computed(() => !props.account);
-const identity = useCurrentIdentity();
-const client = useClient();
 const config = useConfig();
 const accountId = computed(() => props.account?.id ?? null);
 const { relationship, isLoading } = useRelationship(client, accountId);
@@ -155,7 +153,6 @@ const visibleRoles = computed(
     () => props.account?.roles.filter((r) => r.visible) ?? [],
 );
 
-const settings = useSettings();
 const { display_name, fields, note } = useParsedAccount(
     computed(() => props.account),
     settings,

components/timelines/account.vue

@@ -8,8 +8,6 @@
 import type { Status } from "@lysand-org/client/types";
 import Timeline from "./timeline.vue";
 
-const client = useClient();
-
 const props = defineProps<{
     id: string;
 }>();

components/timelines/home.vue

@@ -8,7 +8,6 @@
 import type { Status } from "@lysand-org/client/types";
 import { useHomeTimeline } from "~/composables/HomeTimeline";
 import Timeline from "./timeline.vue";
-const client = useClient();
 
 const {
     error,

components/timelines/local.vue

@@ -8,7 +8,6 @@
 import type { Status } from "@lysand-org/client/types";
 import { useLocalTimeline } from "~/composables/LocalTimeline";
 import Timeline from "./timeline.vue";
-const client = useClient();
 
 const {
     error,

components/timelines/notifications.vue

@@ -9,8 +9,6 @@ import type { Notification } from "@lysand-org/client/types";
 import { useNotificationTimeline } from "~/composables/NotificationTimeline";
 import Timeline from "./timeline.vue";
 
-const client = useClient();
-
 const {
     error,
     hasReachedEnd,

components/timelines/public.vue

@@ -8,7 +8,6 @@
 import type { Status } from "@lysand-org/client/types";
 import { usePublicTimeline } from "~/composables/PublicTimeline";
 import Timeline from "./timeline.vue";
-const client = useClient();
 
 const {
     error,

composables/CacheRefresh.ts

@@ -1,14 +1,11 @@
 import type { LysandClient } from "@lysand-org/client";
 import type { RolePermission } from "@lysand-org/client/types";
-import { useCurrentIdentity } from "./Identities";
 
 export const useCacheRefresh = (client: MaybeRef<LysandClient | null>) => {
     if (import.meta.server) {
         return;
     }
 
-    const identity = useCurrentIdentity();
-
     // Refresh custom emojis and instance data and me on every reload
     watchEffect(async () => {
         console.info("Refreshing emoji, instance and account cache");

composables/Client.ts

@@ -1,11 +1,8 @@
 import { LysandClient, type Token } from "@lysand-org/client";
-import { useCurrentIdentity } from "./Identities";
 
 export const useClient = (
     customToken: MaybeRef<Token | null> = null,
 ): Ref<LysandClient> => {
-    const identity = useCurrentIdentity();
-
     return computed(
         () =>
             new LysandClient(
@@ -25,3 +22,5 @@ export const useClient = (
             ),
     );
 };
+
+export const client = useClient();

composables/Identities.ts

@@ -5,72 +5,99 @@ import type {
     Instance,
     RolePermission,
 } from "@lysand-org/client/types";
-import { StorageSerializers } from "@vueuse/core";
+import { StorageSerializers, useLocalStorage } from "@vueuse/core";
+import { ref, watch } from "vue";
 
-export type Identity = {
+/**
+ * Represents an identity with associated tokens, account, instance, permissions, and emojis.
+ */
+export interface Identity {
     id: string;
     tokens: Token;
     account: Account;
     instance: Instance;
     permissions: RolePermission[];
     emojis: Emoji[];
-};
+}
 
-export const useIdentities = (): Ref<Identity[]> => {
+/**
+ * Composable to manage multiple identities.
+ * @returns A reactive reference to an array of identities.
+ */
+function useIdentities(): Ref<Identity[]> {
     return useLocalStorage<Identity[]>("lysand:identities", [], {
         serializer: StorageSerializers.object,
     });
-};
+}
 
-export const useCurrentIdentity = (): Ref<Identity | null> => {
-    const currentId = useLocalStorage<string | null>(
+export const identities = useIdentities();
+
+const currentId = useLocalStorage<string | null>(
     "lysand:identities:current",
     null,
-    );
+);
 
-    const identities = useIdentities();
-    const current = ref(
-        identities.value.find((i) => i.id === currentId.value) ?? null,
-    );
+const current = ref<Identity | null>(null);
 
-    watch(identities, (ids) => {
+/**
+ * Composable to manage the current identity.
+ * @returns A reactive reference to the current identity or null if not set.
+ */
+function useCurrentIdentity(): Ref<Identity | null> {
+    // Initialize current identity
+    function updateCurrentIdentity() {
+        current.value =
+            identities.value.find((i) => i.id === currentId.value) ?? null;
+    }
+
+    // Watch for changes in identities
+    watch(
+        identities,
+        (ids) => {
             if (ids.length === 0) {
                 current.value = null;
-        }
-    });
-
-    watch(
-        current,
-        (newCurrent) => {
-            if (newCurrent) {
-                currentId.value = newCurrent.id;
-                // If the identity is updated, update the identity in the list
-                if (identities.value.find((i) => i.id === newCurrent.id)) {
-                    identities.value = identities.value.map((i) =>
-                        i.id === newCurrent.id ? newCurrent : i,
-                    );
-                }
-                // If the identity is not in the list, add it
-                else {
-                    identities.value.push(newCurrent);
-                }
-
-                // Force update the identities
-                identities.value = [...identities.value];
-            } else {
-                identities.value = identities.value.filter(
-                    (i) => i.id !== currentId.value,
-                );
-
-                if (identities.value.length > 0) {
-                    currentId.value = identities.value[0]?.id;
-                } else {
                 currentId.value = null;
-                }
+            } else {
+                updateCurrentIdentity();
             }
         },
         { deep: true },
     );
 
+    // Watch for changes in currentId
+    watch(currentId, updateCurrentIdentity);
+
+    // Watch for changes in current identity
+    watch(
+        current,
+        (newCurrent) => {
+            if (newCurrent) {
+                currentId.value = newCurrent.id;
+                const index = identities.value.findIndex(
+                    (i) => i.id === newCurrent.id,
+                );
+                if (index !== -1) {
+                    // Update existing identity
+                    identities.value[index] = newCurrent;
+                } else {
+                    // Add new identity
+                    identities.value.push(newCurrent);
+                }
+            } else {
+                // Remove current identity
+                identities.value = identities.value.filter(
+                    (i) => i.id !== currentId.value,
+                );
+                currentId.value = identities.value[0]?.id ?? null;
+            }
+        },
+        { deep: true },
+    );
+
+    // Initial setup
+    updateCurrentIdentity();
+
     return current;
-};
+}
+
+export const identity = useCurrentIdentity();

composables/Instance.ts

@@ -2,8 +2,6 @@ import type { LysandClient } from "@lysand-org/client";
 import type { ExtendedDescription, Instance } from "@lysand-org/client/types";
 
 export const useInstance = () => {
-    const identity = useCurrentIdentity();
-
     return computed(() => identity.value?.instance);
 };
 

composables/Permissions.ts

@@ -1,5 +1,3 @@
 export const usePermissions = () => {
-    const identity = useCurrentIdentity();
-
     return computed(() => identity.value?.permissions ?? []);
 };

composables/Relationship.ts

@@ -1,6 +1,5 @@
 import type { LysandClient } from "@lysand-org/client";
 import type { Relationship } from "@lysand-org/client/types";
-import { useCurrentIdentity } from "./Identities";
 
 export const useRelationship = (
     client: MaybeRef<LysandClient | null>,
@@ -9,7 +8,7 @@ export const useRelationship = (
     const relationship = ref(null as Relationship | null);
     const isLoading = ref(false);
 
-    if (!useCurrentIdentity().value) {
+    if (!identity.value) {
         return { relationship, isLoading };
     }
 

composables/ResolveMentions.ts

@@ -11,14 +11,18 @@ export const useResolveMentions = (
 
     const output = ref<Account[]>([]);
 
-    watch(mentions, async () => {
+    watch(
+        mentions,
+        async () => {
             output.value = await Promise.all(
                 toValue(mentions).map(async (mention) => {
                     const response = await client.getAccount(mention.id);
                     return response.data;
                 }),
             );
-    });
+        },
+        { immediate: true },
+    );
 
     return output;
 };

composables/Settings.ts

@@ -4,11 +4,11 @@ import {
     type SettingIds,
     type Settings,
     parseFromJson,
-    settings,
+    settings as settingsJson,
 } from "~/settings";
 
-export const useSettings = () => {
-    return useLocalStorage<Settings>("lysand:settings", settings, {
+const useSettings = () => {
+    return useLocalStorage<Settings>("lysand:settings", settingsJson, {
         serializer: {
             read(raw) {
                 const json = StorageSerializers.object.read(raw);
@@ -31,9 +31,9 @@ export const useSettings = () => {
     });
 };
 
-export const useSetting = <T extends Setting = Setting>(id: SettingIds) => {
-    const settings = useSettings();
+export const settings = useSettings();
 
+export const useSetting = <T extends Setting = Setting>(id: SettingIds) => {
     const setting: Ref<T> = ref<T>(
         settings.value.find((s) => s.id === id) as T,
     ) as unknown as Ref<T>;
@@ -52,5 +52,5 @@ export const useSetting = <T extends Setting = Setting>(id: SettingIds) => {
 };
 
 export const getSetting = <T extends Setting = Setting>(id: SettingIds) => {
-    return settings.find((s) => s.id === id) as T;
+    return settingsJson.find((s) => s.id === id) as T;
 };

layouts/app.vue

@@ -37,7 +37,6 @@ const notUsingInput = computed(
         activeElement.value?.tagName !== "INPUT" &&
         activeElement.value?.tagName !== "TEXTAREA",
 );
-const identity = useCurrentIdentity();
 
 watchEffect(async () => {
     if (n?.value && notUsingInput.value) {

pages/[username]/[uuid].vue

@@ -20,7 +20,6 @@ definePageMeta({
 
 const element = ref<HTMLElement | null>(null);
 const route = useRoute();
-const client = useClient();
 const uuid = route.params.uuid as string;
 
 const note = useNote(client, uuid);

pages/[username]/index.vue

@@ -21,7 +21,6 @@ definePageMeta({
 });
 
 const route = useRoute();
-const client = useClient();
 const username = (route.params.username as string).startsWith("@")
     ? (route.params.username as string).substring(1)
     : (route.params.username as string);

pages/notifications.vue

@@ -28,5 +28,4 @@ import TimelineScroller from "~/components/timelines/timeline-scroller.vue";
 definePageMeta({
     layout: "app",
 });
-const identity = useCurrentIdentity();
 </script>

pages/oauth/reset.vue

@@ -76,7 +76,6 @@ import Label from "~/components/inputs/label.vue";
 import PasswordInput from "~/components/inputs/password-input.vue";
 import Button from "~/packages/ui/components/buttons/button.vue";
 
-const identity = useCurrentIdentity();
 identity.value = null;
 
 const schema = toTypedSchema(

pages/register/index.vue

@@ -84,7 +84,8 @@
                     cannot see your password.
                 </p>
 
-                <Button theme="primary" type="submit" class="w-full" :disabled="isLoading">{{ isLoading ? "Registering..." :
+                <Button theme="primary" type="submit" class="w-full" :disabled="isLoading">{{ isLoading ?
+                    "Registering..." :
                     "Register" }}</Button>
             </VeeForm>
         </div>
@@ -140,7 +141,6 @@ const schema = toTypedSchema(
         }),
 );
 
-const client = useClient();
 const tos = useTos(client);
 
 const errors = ref<{

pages/settings/index.vue

@@ -33,6 +33,4 @@ import { SettingPages, getSettingsForPath } from "~/settings";
 definePageMeta({
     layout: "app",
 });
-
-const settings = useSettings();
 </script>

utils/auth.ts

@@ -2,10 +2,6 @@ import type { ApplicationData } from "@lysand-org/client/types";
 import { nanoid } from "nanoid";
 
 export const signInWithCode = (code: string, appData: ApplicationData) => {
-    const identity = useCurrentIdentity();
-    const identities = useIdentities();
-    const client = useClient();
-
     client.value
         ?.fetchAccessToken(
             appData.client_id,