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website/contexts/Channels.tsx
2022-08-31 21:44:33 +02:00

87 lines
2.4 KiB
TypeScript

import { createContext, useContext, useEffect, useMemo } from 'react'
import { useRouter } from 'next/router'
import type { NextPage } from '../hooks/usePagination'
import { usePagination } from '../hooks/usePagination'
import { useAuthentication } from '../tools/authentication'
import type { Channel, ChannelWithDefaultChannelId } from '../models/Channel'
import type { GuildsChannelsPath } from '../components/Application'
import type { SocketData } from '../tools/handleSocketData'
import { handleSocketData } from '../tools/handleSocketData'
import type { CacheKey } from '../tools/cache'
import { CHANNELS_CACHE_KEY } from '../tools/cache'
export interface Channels {
channels: Channel[]
hasMore: boolean
nextPage: NextPage
}
const defaultChannelsContext = {} as any
const ChannelsContext = createContext<Channels>(defaultChannelsContext)
export interface ChannelsProviderProps {
path: GuildsChannelsPath
}
export const ChannelsProvider: React.FC<
React.PropsWithChildren<ChannelsProviderProps>
> = (props) => {
const { path, children } = props
const router = useRouter()
const { authentication } = useAuthentication()
const cacheKey = useMemo<CacheKey>(() => {
return `${path.guildId}-${CHANNELS_CACHE_KEY}`
}, [path.guildId])
const {
items: channels,
hasMore,
nextPage,
resetPagination,
setItems
} = usePagination<Channel>({
api: authentication.api,
url: `/guilds/${path.guildId}/channels`,
cacheKey
})
useEffect(() => {
authentication?.socket?.on(
'channels',
async (data: SocketData<ChannelWithDefaultChannelId>) => {
handleSocketData({ data, setItems, cacheKey })
if (data.action === 'delete') {
await router.push(
`/application/${path.guildId}/${data.item.defaultChannelId}`
)
}
}
)
return () => {
authentication?.socket?.off('channels')
}
}, [authentication.socket, path.guildId, router, setItems, cacheKey])
useEffect(() => {
resetPagination()
nextPage()
}, [nextPage, resetPagination])
return (
<ChannelsContext.Provider value={{ channels, hasMore, nextPage }}>
{children}
</ChannelsContext.Provider>
)
}
export const useChannels = (): Channels => {
const channels = useContext(ChannelsContext)
if (channels === defaultChannelsContext) {
throw new Error('`useChannels` must be used within `ChannelsProvider`')
}
return channels
}