elk/composables/cache.ts
2023-01-08 14:21:09 +08:00

95 lines
2.7 KiB
TypeScript

import LRU from 'lru-cache'
import type { mastodon } from 'masto'
const cache = new LRU<string, any>({
max: 1000,
})
if (process.dev && process.client)
// eslint-disable-next-line no-console
console.log({ cache })
export function setCached(key: string, value: any, override = false) {
if (override || !cache.has(key))
cache.set(key, value)
}
function removeCached(key: string) {
cache.delete(key)
}
export function fetchStatus(id: string, force = false): Promise<mastodon.v1.Status> {
const server = currentServer.value
const key = `${server}:status:${id}`
const cached = cache.get(key)
if (cached && !force)
return cached
const promise = useMasto().v1.statuses.fetch(id)
.then((status) => {
cacheStatus(status)
return status
})
cache.set(key, promise)
return promise
}
export function fetchAccountById(id?: string | null): Promise<mastodon.v1.Account | null> {
if (!id)
return Promise.resolve(null)
const server = currentServer.value
const key = `${server}:account:${id}`
const cached = cache.get(key)
if (cached)
return cached
const domain = currentInstance.value?.domain
const promise = useMasto().v1.accounts.fetch(id)
.then((r) => {
if (r.acct && !r.acct.includes('@') && domain)
r.acct = `${r.acct}@${domain}`
cacheAccount(r, server, true)
return r
})
cache.set(key, promise)
return promise
}
export async function fetchAccountByHandle(acct: string): Promise<mastodon.v1.Account> {
const server = currentServer.value
const key = `${server}:account:${acct}`
const cached = cache.get(key)
if (cached)
return cached
const domain = currentInstance.value?.domain
const account = useMasto().v1.accounts.lookup({ acct })
.then((r) => {
if (r.acct && !r.acct.includes('@') && domain)
r.acct = `${r.acct}@${domain}`
cacheAccount(r, server, true)
return r
})
cache.set(key, account)
return account
}
export function useAccountByHandle(acct: string) {
return useAsyncState(() => fetchAccountByHandle(acct), null).state
}
export function useAccountById(id?: string | null) {
return useAsyncState(() => fetchAccountById(id), null).state
}
export function cacheStatus(status: mastodon.v1.Status, server = currentServer.value, override?: boolean) {
setCached(`${server}:status:${status.id}`, status, override)
}
export function removeCachedStatus(id: string, server = currentServer.value) {
removeCached(`${server}:status:${id}`)
}
export function cacheAccount(account: mastodon.v1.Account, server = currentServer.value, override?: boolean) {
setCached(`${server}:account:${account.id}`, account, override)
setCached(`${server}:account:${account.acct}`, account, override)
}