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import * as Notifications from 'expo-notifications'
import {BskyAgent} from '@atproto/api'
import {logger} from '#/logger'
import {SessionAccount} from '#/state/session'
import {devicePlatform} from 'platform/detection'
const SERVICE_DID = (serviceUrl?: string) =>
serviceUrl?.includes('staging')
? 'did:web:api.staging.bsky.dev'
: 'did:web:api.bsky.app'
export async function requestPermissionsAndRegisterToken(
getAgent: () => BskyAgent,
account: SessionAccount,
) {
// request notifications permission once the user has logged in
const perms = await Notifications.getPermissionsAsync()
if (!perms.granted) {
await Notifications.requestPermissionsAsync()
}
// register the push token with the server
const token = await Notifications.getDevicePushTokenAsync()
try {
await getAgent().api.app.bsky.notification.registerPush({
serviceDid: SERVICE_DID(account.service),
platform: devicePlatform,
token: token.data,
appId: 'xyz.blueskyweb.app',
})
logger.debug(
'Notifications: Sent push token (init)',
{
tokenType: token.type,
token: token.data,
},
logger.DebugContext.notifications,
)
} catch (error) {
logger.error('Notifications: Failed to set push token', {message: error})
}
}
export function registerTokenChangeHandler(
getAgent: () => BskyAgent,
account: SessionAccount,
): () => void {
// listens for new changes to the push token
// In rare situations, a push token may be changed by the push notification service while the app is running. When a token is rolled, the old one becomes invalid and sending notifications to it will fail. A push token listener will let you handle this situation gracefully by registering the new token with your backend right away.
const sub = Notifications.addPushTokenListener(async newToken => {
logger.debug(
'Notifications: Push token changed',
{tokenType: newToken.data, token: newToken.type},
logger.DebugContext.notifications,
)
try {
await getAgent().api.app.bsky.notification.registerPush({
serviceDid: SERVICE_DID(account.service),
platform: devicePlatform,
token: newToken.data,
appId: 'xyz.blueskyweb.app',
})
logger.debug(
'Notifications: Sent push token (event)',
{
tokenType: newToken.type,
token: newToken.data,
},
logger.DebugContext.notifications,
)
} catch (error) {
logger.error('Notifications: Failed to set push token', {message: error})
}
})
return () => {
sub.remove()
}
}
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