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import AsyncStorage from '@react-native-async-storage/async-storage'
import {logger} from '#/logger'
import {defaults, Schema, schema} from '#/state/persisted/schema'
import {write, read} from '#/state/persisted/store'
/**
* The shape of the serialized data from our legacy Mobx store.
*/
type LegacySchema = {
shell: {
colorMode: 'system' | 'light' | 'dark'
}
session: {
data: {
service: string
did: `did:plc:${string}`
}
accounts: {
service: string
did: `did:plc:${string}`
refreshJwt: string
accessJwt: string
handle: string
email: string
displayName: string
aviUrl: string
emailConfirmed: boolean
}[]
}
me: {
did: `did:plc:${string}`
handle: string
displayName: string
description: string
avatar: string
}
onboarding: {
step: string
}
preferences: {
primaryLanguage: string
contentLanguages: string[]
postLanguage: string
postLanguageHistory: string[]
contentLabels: {
nsfw: string
nudity: string
suggestive: string
gore: string
hate: string
spam: string
impersonation: string
}
savedFeeds: string[]
pinnedFeeds: string[]
requireAltTextEnabled: boolean
}
invitedUsers: {
seenDids: string[]
copiedInvites: string[]
}
mutedThreads: {uris: string[]}
reminders: {lastEmailConfirm: string}
}
const DEPRECATED_ROOT_STATE_STORAGE_KEY = 'root'
export function transform(legacy: Partial<LegacySchema>): Schema {
return {
colorMode: legacy.shell?.colorMode || defaults.colorMode,
session: {
accounts: legacy.session?.accounts || defaults.session.accounts,
currentAccount:
legacy.session?.accounts?.find(
a => a.did === legacy.session?.data?.did,
) || defaults.session.currentAccount,
},
reminders: {
lastEmailConfirm:
legacy.reminders?.lastEmailConfirm ||
defaults.reminders.lastEmailConfirm,
},
languagePrefs: {
primaryLanguage:
legacy.preferences?.primaryLanguage ||
defaults.languagePrefs.primaryLanguage,
contentLanguages:
legacy.preferences?.contentLanguages ||
defaults.languagePrefs.contentLanguages,
postLanguage:
legacy.preferences?.postLanguage || defaults.languagePrefs.postLanguage,
postLanguageHistory:
legacy.preferences?.postLanguageHistory ||
defaults.languagePrefs.postLanguageHistory,
appLanguage:
legacy.preferences?.postLanguage || defaults.languagePrefs.appLanguage,
},
requireAltTextEnabled:
legacy.preferences?.requireAltTextEnabled ||
defaults.requireAltTextEnabled,
mutedThreads: legacy.mutedThreads?.uris || defaults.mutedThreads,
invites: {
copiedInvites:
legacy.invitedUsers?.copiedInvites || defaults.invites.copiedInvites,
},
onboarding: {
step: legacy.onboarding?.step || defaults.onboarding.step,
},
}
}
/**
* Migrates legacy persisted state to new store if new store doesn't exist in
* local storage AND old storage exists.
*/
export async function migrate() {
logger.info('persisted state: check need to migrate')
try {
const rawLegacyData = await AsyncStorage.getItem(
DEPRECATED_ROOT_STATE_STORAGE_KEY,
)
const newData = await read()
const alreadyMigrated = Boolean(newData)
try {
if (rawLegacyData) {
const legacy = JSON.parse(rawLegacyData) as Partial<LegacySchema>
logger.info(`persisted state: debug legacy data`, {
hasExistingLoggedInAccount: Boolean(legacy?.session?.data),
numberOfExistingAccounts: legacy?.session?.accounts?.length,
foundExistingCurrentAccount: Boolean(
legacy.session?.accounts?.find(
a => a.did === legacy.session?.data?.did,
),
),
})
logger.info(`persisted state: debug new data`, {
hasNewData: Boolean(newData),
hasExistingLoggedInAccount: Boolean(newData?.session?.currentAccount),
numberOfExistingAccounts: newData?.session?.accounts?.length,
existingAccountMatchesLegacy: Boolean(
newData?.session?.currentAccount?.did ===
legacy?.session?.data?.did,
),
})
}
} catch (e: any) {
logger.error(e, {message: `persisted state: legacy debugging failed`})
}
if (!alreadyMigrated && rawLegacyData) {
logger.info('persisted state: migrating legacy storage')
const legacyData = JSON.parse(rawLegacyData)
const newData = transform(legacyData)
const validate = schema.safeParse(newData)
if (validate.success) {
await write(newData)
logger.log('persisted state: migrated legacy storage')
} else {
logger.error('persisted state: legacy data failed validation', {
error: validate.error,
})
}
} else {
logger.log('persisted state: no migration needed')
}
} catch (e: any) {
logger.error(e, {
message: 'persisted state: error migrating legacy storage',
})
}
}
export async function clearLegacyStorage() {
try {
await AsyncStorage.removeItem(DEPRECATED_ROOT_STATE_STORAGE_KEY)
} catch (e: any) {
logger.error(`persisted legacy store: failed to clear`, {
error: e.toString(),
})
}
}
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