feat(filter): remember filters, add localstorage hook and utils

This commit is contained in:
enes 2024-10-29 13:21:12 +01:00
parent 7640bdd53b
commit 6e07f4b8be
5 changed files with 93 additions and 0 deletions

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@ -7,3 +7,4 @@ export * from './useNSFWList'
export * from './useReactions' export * from './useReactions'
export * from './useNDKContext' export * from './useNDKContext'
export * from './useScrollDisable' export * from './useScrollDisable'
export * from './useLocalStorage'

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@ -0,0 +1,50 @@
import React from 'react'
import {
getLocalStorageItem,
removeLocalStorageItem,
setLocalStorageItem
} from 'utils'
const useLocalStorageSubscribe = (callback: () => void) => {
window.addEventListener('storage', callback)
return () => window.removeEventListener('storage', callback)
}
export function useLocalStorage<T>(
key: string,
initialValue: T
): [T, React.Dispatch<React.SetStateAction<T>>] {
const getSnapshot = () => getLocalStorageItem(key, initialValue)
const data = React.useSyncExternalStore(useLocalStorageSubscribe, getSnapshot)
const setState: React.Dispatch<React.SetStateAction<T>> = React.useCallback(
(v: React.SetStateAction<T>) => {
try {
const nextState =
typeof v === 'function'
? (v as (prevState: T) => T)(JSON.parse(data))
: v
if (nextState === undefined || nextState === null) {
removeLocalStorageItem(key)
} else {
setLocalStorageItem(key, JSON.stringify(nextState))
}
} catch (e) {
console.warn(e)
}
},
[key, data]
)
React.useEffect(() => {
// Set local storage only when it's empty
const data = window.localStorage.getItem(key)
if (data === null) {
setLocalStorageItem(key, JSON.stringify(initialValue))
}
}, [key, initialValue])
return [JSON.parse(data) as T, setState]
}

8
src/utils/consts.ts Normal file
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@ -0,0 +1,8 @@
import { FilterOptions, SortBy, NSFWFilter, ModeratedFilter } from 'types'
export const DEFAULT_FILTER_OPTIONS: FilterOptions = {
sort: SortBy.Latest,
nsfw: NSFWFilter.Hide_NSFW,
source: window.location.host,
moderated: ModeratedFilter.Moderated
}

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@ -3,3 +3,5 @@ export * from './nostr'
export * from './url' export * from './url'
export * from './utils' export * from './utils'
export * from './zap' export * from './zap'
export * from './localStorage'
export * from './consts'

32
src/utils/localStorage.ts Normal file
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@ -0,0 +1,32 @@
export function getLocalStorageItem<T>(key: string, defaultValue: T): string {
try {
const data = window.localStorage.getItem(key)
if (data === null) return JSON.stringify(defaultValue)
return data
} catch (err) {
console.error(`Error while fetching local storage value: `, err)
return JSON.stringify(defaultValue)
}
}
export function setLocalStorageItem(key: string, value: string) {
try {
window.localStorage.setItem(key, value)
dispatchLocalStorageEvent(key, value)
} catch (err) {
console.error(`Error while saving local storage value: `, err)
}
}
export function removeLocalStorageItem(key: string) {
try {
window.localStorage.removeItem(key)
dispatchLocalStorageEvent(key, null)
} catch (err) {
console.error(`Error while deleting local storage value: `, err)
}
}
function dispatchLocalStorageEvent(key: string, newValue: string | null) {
window.dispatchEvent(new StorageEvent('storage', { key, newValue }))
}