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{ hex } from \"@scure/base\";\nimport { Wallet, extractArkProviderUrl, type ProviderConnectionState } from \"../wallet\";\nimport type { Activity, ActivityRegistry } from \"../activity\";\nimport type {\n IWallet,\n IAssetManager,\n WalletBalance,\n WalletConfig,\n SendBitcoinParams,\n SettleParams,\n GetVtxosFilter,\n GetSpendableVtxosFilter,\n GetNewAddressesOptions,\n NewAddress,\n ArkTransaction,\n ExtendedCoin,\n Recipient,\n SendParams,\n} from \"..\";\nimport type { SettlementEvent } from \"../../providers/ark\";\nimport type { Identity } from \"../../identity\";\nimport type {\n AddressAllocationCapable,\n HDAllocationCapable,\n HDWalletCapable,\n} from \"../hdWalletCapable\";\nimport type { IContractManager } from \"../../contracts/contractManager\";\nimport type { IDelegateManager } from \"../delegate\";\nimport type { TaskQueue, TaskItem } from \"../../worker/expo/taskQueue\";\nimport type { TaskProcessor, TaskDependencies } from \"../../worker/expo/taskRunner\";\nimport { runTasks } from \"../../worker/expo/taskRunner\";\nimport { contractPollProcessor, CONTRACT_POLL_TASK_TYPE } from \"../../worker/expo/processors\";\nimport { extendVirtualCoinForContract, getRandomId } from \"../utils\";\nimport type { PersistedBackgroundConfig } from \"./background\";\nimport type { AsyncStorageTaskQueue } from \"../../worker/expo/asyncStorageTaskQueue\";\nimport type { NormalizedExtendedVirtualCoin } from \"../vtxo\";\n\n/**\n * Background processing configuration for @see ExpoWallet.\n *\n * OS-level task registration is **not** part of this config — call\n * `registerExpoBackgroundTask` from `@arkade-os/sdk/wallet/expo/background`\n * explicitly. Splitting that step out keeps `/wallet/expo` free of the\n * `expo-task-manager` / `expo-background-task` dependencies, so\n * react-native-web and Node consumers can use `ExpoWallet` without\n * those native packages. See\n * https://github.com/arkade-os/ts-sdk/issues/486 for details.\n */\nexport interface ExpoBackgroundConfig {\n /** Persistence layer for foreground ↔ background handoff. */\n taskQueue: TaskQueue;\n /** Processors to run on each tick. Defaults to `[contractPollProcessor]`. */\n processors?: TaskProcessor[];\n /** If set, automatically polls at this interval (ms) while the app is in the foreground. */\n foregroundIntervalMs?: number;\n}\n\n/**\n * Configuration for @see ExpoWallet.setup.\n */\nexport interface ExpoWalletConfig extends WalletConfig {\n background: ExpoBackgroundConfig;\n}\n\n/**\n * Catches JS callers still passing the pre-fix-#486 fields: TypeScript\n * blocks these at compile time, but compiled JS silently dropped them\n * and consumers would never realize the OS task wasn't scheduled.\n *\n * @internal Exported for tests; not part of the public API surface.\n */\nexport function warnOnRemovedBackgroundFields(bg: unknown): void {\n if (!bg || typeof bg !== \"object\") return;\n const removed: string[] = [];\n if (\"taskName\" in bg) removed.push(\"taskName\");\n if (\"minimumBackgroundInterval\" in bg) {\n removed.push(\"minimumBackgroundInterval\");\n }\n if (removed.length === 0) return;\n console.warn(\n `[ark-sdk] ExpoWallet.setup: ignoring removed background field(s): ${removed.join(\", \")}. ` +\n 'OS-task registration moved to \"@arkade-os/sdk/wallet/expo/background\". ' +\n \"See https://github.com/arkade-os/ts-sdk/issues/486\",\n );\n}\n\n/**\n * Expo/React Native wallet with built-in background task processing.\n *\n * Wraps a standard @see Wallet and adds a lightweight task queue\n * for keeping contract/VTXO state fresh while the app is active and\n * across Expo BackgroundTask wakes.\n *\n * OS-level task registration is the consumer's responsibility — call\n * `registerExpoBackgroundTask` from\n * `@arkade-os/sdk/wallet/expo/background` after `setup()`. Keeping\n * registration out of `setup()` lets this entrypoint avoid pulling\n * `expo-task-manager` / `expo-background-task` into the `/wallet/expo`\n * bundle.\n *\n * @example\n * ```ts\n * import { ExpoWallet } from \"@arkade-os/sdk/wallet/expo\";\n * import { registerExpoBackgroundTask } from \"@arkade-os/sdk/wallet/expo/background\";\n * import { AsyncStorageTaskQueue } from \"@arkade-os/sdk/worker/expo\";\n *\n * const wallet = await ExpoWallet.setup({\n * identity: MnemonicIdentity.fromMnemonic('abandon abandon...'),\n * arkProvider: new RestArkProvider(),\n * onchainProvider: new EsploraProvider(),\n * storage: { ... },\n * background: {\n * taskQueue: new AsyncStorageTaskQueue(AsyncStorage),\n * foregroundIntervalMs: 20_000,\n * },\n * });\n *\n * // Activate the OS scheduler (Expo Android/iOS only)\n * await registerExpoBackgroundTask(\"ark-background-poll\", { minimumInterval: 15 });\n *\n * const balance = await wallet.getBalance();\n * ```\n */\nexport class ExpoWallet\n implements IWallet, HDWalletCapable, HDAllocationCapable, AddressAllocationCapable\n{\n readonly identity: Identity;\n readonly arkProvider: Wallet[\"arkProvider\"];\n readonly indexerProvider: Wallet[\"indexerProvider\"];\n\n private foregroundIntervalId?: ReturnType;\n private foregroundPollChain: Promise = Promise.resolve();\n private cleared = false;\n\n private constructor(\n private readonly wallet: Wallet,\n private readonly taskQueue: TaskQueue,\n private readonly processors: TaskProcessor[],\n private readonly deps: TaskDependencies,\n foregroundIntervalMs?: number,\n ) {\n this.identity = wallet.identity;\n this.arkProvider = wallet.arkProvider;\n this.indexerProvider = wallet.indexerProvider;\n\n if (foregroundIntervalMs && foregroundIntervalMs > 0) {\n this.startForegroundPolling(foregroundIntervalMs);\n }\n }\n\n /**\n * Create an ExpoWallet with foreground/background queue handoff.\n *\n * 1. Creates the inner @see Wallet via `Wallet.create()`.\n * 2. Wires up processors (defaults to @see contractPollProcessor).\n * 3. Persists background config for the background handler (if the queue supports it).\n * 4. Seeds the task queue with a `contract-poll` task.\n * 5. Starts the foreground interval if `foregroundIntervalMs` is set.\n *\n * OS-level scheduling lives in\n * `@arkade-os/sdk/wallet/expo/background` and is invoked separately\n * by the consumer.\n */\n static async setup(config: ExpoWalletConfig): Promise {\n warnOnRemovedBackgroundFields(config.background);\n\n const wallet = await Wallet.create(config);\n\n const processors = config.background.processors ?? [contractPollProcessor];\n\n const deps: TaskDependencies = {\n walletRepository: wallet.walletRepository,\n contractRepository: wallet.contractRepository,\n indexerProvider: wallet.indexerProvider,\n arkProvider: wallet.arkProvider,\n extendVtxo: (vtxo, contract) => extendVirtualCoinForContract(vtxo, contract),\n };\n\n const { taskQueue } = config.background;\n\n // Persist wallet params so the background handler can rehydrate\n // without a network call. Only works with AsyncStorageTaskQueue.\n if (\"persistConfig\" in taskQueue) {\n const arkServerUrl = config.arkServerUrl || extractArkProviderUrl(wallet.arkProvider);\n\n if (arkServerUrl) {\n const timelock = wallet.offchainTapscript.options.csvTimelock;\n\n const bgConfig: PersistedBackgroundConfig = {\n arkServerUrl,\n pubkeyHex: hex.encode(wallet.offchainTapscript.options.pubKey),\n serverPubKeyHex: hex.encode(wallet.offchainTapscript.options.serverPubKey),\n exitTimelockValue: timelock.value.toString(),\n exitTimelockType: timelock.type,\n };\n\n await (taskQueue as AsyncStorageTaskQueue).persistConfig(bgConfig);\n }\n }\n\n const expoWallet = new ExpoWallet(\n wallet,\n taskQueue,\n processors,\n deps,\n config.background.foregroundIntervalMs,\n );\n\n // Seed the queue so the first tick (or background wake) has work to do\n await expoWallet.seedContractPollTask();\n\n return expoWallet;\n }\n\n // ── Foreground polling ───────────────────────────────────────────\n\n private startForegroundPolling(intervalMs: number): void {\n this.foregroundIntervalId = setInterval(() => {\n // Serialize polls so clear() can await the in-flight one before wiping.\n this.foregroundPollChain = this.foregroundPollChain\n .then(() => this.runForegroundPoll())\n .catch(console.error);\n }, intervalMs);\n }\n\n private async runForegroundPoll(): Promise {\n if (this.cleared) return;\n\n await runTasks(this.taskQueue, this.processors, this.deps);\n\n // Consume results immediately (no background handoff needed)\n const results = await this.taskQueue.getResults();\n if (results.length > 0) {\n await this.taskQueue.acknowledgeResults(results.map((r) => r.id));\n }\n\n if (this.cleared) return;\n\n // Re-seed for the next tick\n await this.seedContractPollTask();\n }\n\n private async seedContractPollTask(): Promise {\n const existing = await this.taskQueue.getTasks(CONTRACT_POLL_TASK_TYPE);\n if (existing.length > 0) return;\n\n const task: TaskItem = {\n id: getRandomId(),\n type: CONTRACT_POLL_TASK_TYPE,\n data: {},\n createdAt: Date.now(),\n };\n await this.taskQueue.addTask(task);\n }\n\n private async removeContractPollTasks(): Promise {\n const tasks = await this.taskQueue.getTasks(CONTRACT_POLL_TASK_TYPE);\n for (const task of tasks) {\n await this.taskQueue.removeTask(task.id);\n }\n }\n\n // ── Lifecycle ────────────────────────────────────────────────────\n\n /**\n * Stop foreground polling and dispose the inner wallet.\n *\n * Does **not** unregister the OS background task — call\n * `unregisterExpoBackgroundTask` from\n * `@arkade-os/sdk/wallet/expo/background` yourself, matching the\n * explicit `register` step.\n */\n async dispose(): Promise {\n if (this.foregroundIntervalId) {\n clearInterval(this.foregroundIntervalId);\n this.foregroundIntervalId = undefined;\n }\n\n await this.wallet.dispose();\n }\n\n /**\n * Stop foreground polling and wipe all locally persisted wallet data.\n * Does not unregister the OS background task or persisted queue config.\n */\n async clear(): Promise {\n this.cleared = true;\n\n if (this.foregroundIntervalId) {\n clearInterval(this.foregroundIntervalId);\n this.foregroundIntervalId = undefined;\n }\n\n await this.foregroundPollChain;\n await this.wallet.clear();\n await this.removeContractPollTasks();\n }\n\n // ── IWallet delegation ───────────────────────────────────────────\n\n getAddress(): Promise {\n return this.wallet.getAddress();\n }\n\n getBoardingAddress(): Promise {\n return this.wallet.getBoardingAddress();\n }\n\n getBalance(): Promise {\n return this.wallet.getBalance();\n }\n\n getVtxos(filter?: GetVtxosFilter): Promise {\n return this.wallet.getVtxos(filter);\n }\n\n getSpendableVtxos(filter?: GetSpendableVtxosFilter): Promise {\n return this.wallet.getSpendableVtxos(filter);\n }\n\n getBoardingUtxos(): Promise {\n return this.wallet.getBoardingUtxos();\n }\n\n getTransactionHistory(): Promise {\n return this.wallet.getTransactionHistory();\n }\n\n get activity(): ActivityRegistry {\n return this.wallet.activity;\n }\n\n getActivityHistory(): Promise {\n return this.wallet.getActivityHistory();\n }\n\n getContractManager(): Promise {\n return this.wallet.getContractManager();\n }\n\n // Descriptor surface, delegated like everything else here. Without these\n // the structural probes see a wallet with no HD state, so an Expo wallet\n // running `walletMode: 'hd'` would bind every artifact to its baseline\n // identity key — reusing one key across swaps while its receive addresses\n // rotate, and never allocating the indices a restore scan looks for.\n\n getCurrentSigningDescriptor(): Promise {\n return this.wallet.getCurrentSigningDescriptor();\n }\n\n getNextSigningDescriptor(): Promise {\n return this.wallet.getNextSigningDescriptor();\n }\n\n /** @see Wallet.getNewAddresses */\n getNewAddresses(opts?: GetNewAddressesOptions): Promise {\n return this.wallet.getNewAddresses(opts);\n }\n\n getUsedSigningDescriptors(opts?: { lookAhead?: number }): Promise {\n return this.wallet.getUsedSigningDescriptors(opts);\n }\n\n advanceSigningDescriptorWatermark(descriptor: string): Promise {\n return this.wallet.advanceSigningDescriptorWatermark(descriptor);\n }\n\n signerForDescriptor(descriptor: string): Promise {\n return this.wallet.signerForDescriptor(descriptor);\n }\n\n /**\n * Wallet-level provider-connection freshness, delegated to the wrapped\n * in-process wallet. Synchronous because the Expo foreground wallet is\n * in-process (no worker boundary). Foreground-only: it does not imply any\n * background task can read live foreground state.\n */\n getProviderConnectionState(): ProviderConnectionState {\n return this.wallet.getProviderConnectionState();\n }\n\n getDelegateManager(): Promise {\n return this.wallet.getDelegateManager();\n }\n\n /** @deprecated alias for @see ExpoWallet.getDelegateManager */\n getDelegatorManager(): Promise {\n return this.wallet.getDelegateManager();\n }\n\n sendBitcoin(params: SendBitcoinParams): Promise {\n return this.wallet.sendBitcoin(params);\n }\n\n settle(\n params?: SettleParams,\n eventCallback?: (event: SettlementEvent) => void,\n ): Promise {\n return this.wallet.settle(params, eventCallback);\n }\n\n send(...args: [SendParams] | [Recipient, ...Recipient[]]): Promise {\n return this.wallet.send(...args);\n }\n\n get assetManager(): IAssetManager {\n return this.wallet.assetManager;\n }\n}\n"]}