misskey/packages/frontend/src/custom-emojis.ts
2023-01-22 14:53:24 +00:00

57 lines
1.8 KiB
TypeScript

import { apiGet } from './os';
import { miLocalStorage } from './local-storage';
import { shallowRef, computed, markRaw } from 'vue';
import * as Misskey from 'misskey-js';
import { stream } from '@/stream';
const storageCache = miLocalStorage.getItem('emojis');
export const customEmojis = shallowRef<Misskey.entities.CustomEmoji[]>(storageCache ? JSON.parse(storageCache) : []);
export const customEmojiCategories = computed<string[]>(() => {
const categories = new Set<string>();
for (const emoji of customEmojis.value) {
categories.add(emoji.category);
}
return markRaw(Array.from(categories));
});
fetchCustomEmojis();
stream.on('emojiAdded', emojiData => {
customEmojis.value = [ emojiData.emoji, ...customEmojis.value ]
});
stream.on('emojiUpdated', emojiData => {
customEmojis.value = customEmojis.value.map(item => emojiData.emojis.find(search => search.name === item.name) as Misskey.entities.CustomEmoji ?? item);
});
stream.on('emojiDeleted', emojiData => {
customEmojis.value = customEmojis.value.filter(item => !emojiData.emojis.some(search => search.name === item.name))
});
export async function fetchCustomEmojis() {
const now = Date.now();
const lastFetchedAt = miLocalStorage.getItem('lastEmojisFetchedAt');
if (lastFetchedAt && (now - parseInt(lastFetchedAt)) < 1000 * 60) return;
const res = await apiGet('emojis', {});
customEmojis.value = res.emojis;
miLocalStorage.setItem('emojis', JSON.stringify(res.emojis));
miLocalStorage.setItem('lastEmojisFetchedAt', now.toString());
}
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;
}