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Перенос localVault в domain-storage

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Роман Пытков
2026-05-11 20:54:15 +03:00
parent 3928ac5409
commit 9ceb8bd934
3 changed files with 58 additions and 49 deletions
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105
infrastructure-android/src/main/java/com/github/nullptroma/wallenc/infrastructure/vaults/local/LocalVault.kt
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package com.github.nullptroma.wallenc.infrastructure.vaults.local
import android.content.Context
import com.github.nullptroma.wallenc.infrastructure.storages.local.LocalStorage
import com.github.nullptroma.wallenc.domain.datatypes.StorageEncryptionInfo
import com.github.nullptroma.wallenc.domain.interfaces.IStorage
import com.github.nullptroma.wallenc.vault.contract.DescribedVault
import com.github.nullptroma.wallenc.vault.contract.VaultDescriptor
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import java.io.File
import java.util.UUID
import kotlin.io.path.Path
import kotlin.io.path.createDirectory
import kotlin.io.path.pathString
class LocalVault(
private val ioDispatcher: CoroutineDispatcher,
context: Context,
idStore: LocalVaultIdStore,
) : DescribedVault {
override val uuid: UUID = idStore.getOrCreate()
override val descriptor: VaultDescriptor = VaultDescriptor.LocalDevice(uuid)
private val _storages = MutableStateFlow<List<IStorage>>(emptyList())
override val storages: StateFlow<List<IStorage>> = _storages
private val _isAvailable = MutableStateFlow(false)
override val isAvailable: StateFlow<Boolean> = _isAvailable
private val _totalSpace = MutableStateFlow<Long?>(null)
override val totalSpace: StateFlow<Long?> = _totalSpace
private val _availableSpace = MutableStateFlow<Long?>(null)
override val availableSpace: StateFlow<Long?> = _availableSpace
private val path = MutableStateFlow<File?>(null)
init {
CoroutineScope(ioDispatcher).launch {
path.value = context.getExternalFilesDir("LocalVault")
_isAvailable.value = path.value != null
readStorages()
}
}
private suspend fun readStorages() {
val path = path.value
if (path == null || !_isAvailable.value)
throw Exception("Not available")
val dirs = path.listFiles()?.filter { it.isDirectory }
if (dirs != null) {
_storages.value = dirs.map {
val uuid = UUID.fromString(it.name)
LocalStorage(uuid, it.path, ioDispatcher).apply { init() }
}
}
}
override suspend fun createStorage(): LocalStorage = withContext(ioDispatcher) {
val path = path.value
if (path == null || !_isAvailable.value)
throw Exception("Not available")
val uuid = UUID.randomUUID()
val next = Path(path.path, uuid.toString())
next.createDirectory()
val newStorage = LocalStorage(uuid, next.pathString, ioDispatcher)
newStorage.init()
_storages.value = _storages.value.toMutableList().apply {
add(newStorage)
}
return@withContext newStorage
}
override suspend fun createStorage(
enc: StorageEncryptionInfo,
): LocalStorage = withContext(ioDispatcher) {
val storage = createStorage()
storage.setEncInfo(enc)
return@withContext storage
}
override suspend fun remove(storage: IStorage) = withContext(ioDispatcher) {
val path = path.value
if (path == null || !_isAvailable.value)
throw Exception("Not available")
val curStorages = _storages.value.toMutableList()
val index = curStorages.indexOfFirst { it.uuid == storage.uuid }
if (index != -1) {
val localStorage = curStorages[index] as LocalStorage
curStorages.removeAt(index)
_storages.value = curStorages
File(localStorage.absolutePath).deleteRecursively()
}
}
}

30
infrastructure-android/src/main/java/com/github/nullptroma/wallenc/infrastructure/vaults/local/LocalVaultIdStore.kt
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package com.github.nullptroma.wallenc.infrastructure.vaults.local
import android.content.Context
import java.util.UUID
/**
* Хранит/восстанавливает идентификатор единственного локального vault'а
* в [android.content.SharedPreferences]. При первом обращении генерирует новый UUID
* и записывает его синхронно (`commit`), чтобы к моменту, когда другие подсистемы
* (DB, шифр-ключи) начнут связывать с ним записи, значение уже было персистентно.
*/
class LocalVaultIdStore(context: Context) {
private val prefs = context.applicationContext.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
/** Возвращает существующий идентификатор или, если его нет, генерирует и сохраняет новый. */
fun getOrCreate(): UUID {
prefs.getString(KEY_LOCAL_VAULT_UUID, null)?.let { stored ->
runCatching { UUID.fromString(stored) }.getOrNull()?.let { return it }
}
val generated = UUID.randomUUID()
prefs.edit().putString(KEY_LOCAL_VAULT_UUID, generated.toString()).commit()
return generated
}
private companion object {
const val PREFS_NAME = "wallenc.vaults"
const val KEY_LOCAL_VAULT_UUID = "local_vault_uuid"
}
}