misskey/packages/frontend-embed/src/custom-emojis.ts

62 lines
1.6 KiB
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { shallowRef, watch } from 'vue';
import * as Misskey from 'misskey-js';
import { misskeyApi, misskeyApiGet } from '@/misskey-api.js';
function get(key: string) {
const value = localStorage.getItem(key);
if (value === null) return null;
return JSON.parse(value);
}
function set(key: string, value: any) {
localStorage.setItem(key, JSON.stringify(value));
}
const storageCache = await get('emojis');
export const customEmojis = shallowRef<Misskey.entities.EmojiSimple[]>(Array.isArray(storageCache) ? storageCache : []);
export const customEmojisMap = new Map<string, Misskey.entities.EmojiSimple>();
watch(customEmojis, emojis => {
customEmojisMap.clear();
for (const emoji of emojis) {
customEmojisMap.set(emoji.name, emoji);
}
}, { immediate: true });
export async function fetchCustomEmojis(force = false) {
const now = Date.now();
let res;
if (force) {
res = await misskeyApi('emojis', {});
} else {
const lastFetchedAt = await get('lastEmojisFetchedAt');
if (lastFetchedAt && (now - lastFetchedAt) < 1000 * 60 * 60) return;
res = await misskeyApiGet('emojis', {});
}
customEmojis.value = res.emojis;
set('emojis', res.emojis);
set('lastEmojisFetchedAt', now);
}
let cachedTags;
export function getCustomEmojiTags() {
if (cachedTags) return cachedTags;
const tags = new Set();
for (const emoji of customEmojis.value) {
for (const tag of emoji.aliases) {
tags.add(tag);
}
}
const res = Array.from(tags);
cachedTags = res;
return res;
}