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import React from 'react'
import {View} from 'react-native'
import {AppBskyFeedGetAuthorFeed, AtUri} from '@atproto/api'
import {Text} from '../util/text/Text'
import {Button} from '../util/forms/Button'
import * as Toast from '../util/Toast'
import {ErrorMessage} from '../util/error/ErrorMessage'
import {usePalette} from 'lib/hooks/usePalette'
import {useNavigation} from '@react-navigation/native'
import {NavigationProp} from 'lib/routes/types'
import {logger} from '#/logger'
import {useModalControls} from '#/state/modals'
import {FeedDescriptor} from '#/state/queries/post-feed'
import {EmptyState} from '../util/EmptyState'
import {cleanError} from '#/lib/strings/errors'
import {useRemoveFeedMutation} from '#/state/queries/preferences'
enum KnownError {
Block,
FeedgenDoesNotExist,
FeedgenMisconfigured,
FeedgenBadResponse,
FeedgenOffline,
FeedgenUnknown,
Unknown,
}
const MESSAGES = {
[KnownError.Unknown]: '',
[KnownError.Block]: '',
[KnownError.FeedgenDoesNotExist]: `Hmmm, we're having trouble finding this feed. It may have been deleted.`,
[KnownError.FeedgenMisconfigured]:
'Hmm, the feed server appears to be misconfigured. Please let the feed owner know about this issue.',
[KnownError.FeedgenBadResponse]:
'Hmm, the feed server gave a bad response. Please let the feed owner know about this issue.',
[KnownError.FeedgenOffline]:
'Hmm, the feed server appears to be offline. Please let the feed owner know about this issue.',
[KnownError.FeedgenUnknown]:
'Hmm, some kind of issue occured when contacting the feed server. Please let the feed owner know about this issue.',
}
export function FeedErrorMessage({
feedDesc,
error,
onPressTryAgain,
}: {
feedDesc: FeedDescriptor
error: any
onPressTryAgain: () => void
}) {
const knownError = React.useMemo(
() => detectKnownError(feedDesc, error),
[feedDesc, error],
)
if (
typeof knownError !== 'undefined' &&
knownError !== KnownError.Unknown &&
feedDesc.startsWith('feedgen')
) {
return <FeedgenErrorMessage feedDesc={feedDesc} knownError={knownError} />
}
if (knownError === KnownError.Block) {
return (
<EmptyState
icon="ban"
message="Posts hidden"
style={{paddingVertical: 40}}
/>
)
}
return (
<ErrorMessage
message={cleanError(error)}
onPressTryAgain={onPressTryAgain}
/>
)
}
function FeedgenErrorMessage({
feedDesc,
knownError,
}: {
feedDesc: FeedDescriptor
knownError: KnownError
}) {
const pal = usePalette('default')
const navigation = useNavigation<NavigationProp>()
const msg = MESSAGES[knownError]
const [_, uri] = feedDesc.split('|')
const [ownerDid] = safeParseFeedgenUri(uri)
const {openModal, closeModal} = useModalControls()
const {mutateAsync: removeFeed} = useRemoveFeedMutation()
const onViewProfile = React.useCallback(() => {
navigation.navigate('Profile', {name: ownerDid})
}, [navigation, ownerDid])
const onRemoveFeed = React.useCallback(async () => {
openModal({
name: 'confirm',
title: 'Remove feed',
message: 'Remove this feed from your saved feeds?',
async onPressConfirm() {
try {
await removeFeed({uri})
} catch (err) {
Toast.show(
'There was an an issue removing this feed. Please check your internet connection and try again.',
)
logger.error('Failed to remove feed', {error: err})
}
},
onPressCancel() {
closeModal()
},
})
}, [openModal, closeModal, uri, removeFeed])
return (
<View
style={[
pal.border,
pal.viewLight,
{
borderTopWidth: 1,
paddingHorizontal: 20,
paddingVertical: 18,
gap: 12,
},
]}>
<Text style={pal.text}>{msg}</Text>
<View style={{flexDirection: 'row', alignItems: 'center', gap: 10}}>
{knownError === KnownError.FeedgenDoesNotExist && (
<Button type="inverted" label="Remove feed" onPress={onRemoveFeed} />
)}
<Button
type="default-light"
label="View profile"
onPress={onViewProfile}
/>
</View>
</View>
)
}
function safeParseFeedgenUri(uri: string): [string, string] {
try {
const urip = new AtUri(uri)
return [urip.hostname, urip.rkey]
} catch {
return ['', '']
}
}
function detectKnownError(
feedDesc: FeedDescriptor,
error: any,
): KnownError | undefined {
if (!error) {
return undefined
}
if (
error instanceof AppBskyFeedGetAuthorFeed.BlockedActorError ||
error instanceof AppBskyFeedGetAuthorFeed.BlockedByActorError
) {
return KnownError.Block
}
if (typeof error !== 'string') {
error = error.toString()
}
if (!feedDesc.startsWith('feedgen')) {
return KnownError.Unknown
}
if (error.includes('could not find feed')) {
return KnownError.FeedgenDoesNotExist
}
if (error.includes('feed unavailable')) {
return KnownError.FeedgenOffline
}
if (error.includes('invalid did document')) {
return KnownError.FeedgenMisconfigured
}
if (error.includes('could not resolve did document')) {
return KnownError.FeedgenMisconfigured
}
if (
error.includes('invalid feed generator service details in did document')
) {
return KnownError.FeedgenMisconfigured
}
if (error.includes('feed provided an invalid response')) {
return KnownError.FeedgenBadResponse
}
return KnownError.FeedgenUnknown
}
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