fastintear
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Interact with FAST-INT-NEAR Protocol blockchain including transaction signing, utilities, and more.
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* as near from \"./near.js\";\nimport { \n type NetworkConfig,\n type WalletState,\n type TxStatus,\n type StateManager,\n type ExternalStateManager,\n type StateChangeCallbacks,\n NETWORKS,\n DEFAULT_NETWORK_ID,\n WIDGET_URL,\n LocalStorageStateManager,\n MemoryStateManager,\n ExternalStateManagerWrapper,\n TxHistoryManager\n} from \"./state.js\";\nimport { WalletAdapter } from \"./intear.js\";\nimport { publicKeyFromPrivate } from \"./utils\";\n\nexport interface ClientConfig {\n networkId?: string;\n stateManager?: StateManager | ExternalStateManager;\n callbacks?: StateChangeCallbacks;\n isolateState?: boolean; // Use memory state manager for complete isolation\n}\n\n/**\n * Creates a NEAR client instance with modern state management\n */\nexport function createNearClient(config: ClientConfig = {}) {\n const networkId = config.networkId || DEFAULT_NETWORK_ID;\n const networkConfig: NetworkConfig = {\n ...NETWORKS[networkId],\n networkId,\n };\n\n // Determine state manager\n let stateManager: StateManager;\n if (config.stateManager) {\n // If it's an ExternalStateManager, wrap it\n if ('subscribe' in config.stateManager) {\n stateManager = config.stateManager as StateManager;\n } else {\n stateManager = new ExternalStateManagerWrapper(config.stateManager as ExternalStateManager);\n }\n } else if (config.isolateState) {\n stateManager = new MemoryStateManager(networkId);\n } else {\n stateManager = new LocalStorageStateManager(networkId);\n }\n\n // Transaction history manager\n const txHistoryManager = new TxHistoryManager();\n\n // Current state cache\n let currentState: WalletState | null = null;\n\n // Initialize state\n stateManager.getState().then(state => {\n currentState = state;\n if (state && config.callbacks?.onStateChange) {\n config.callbacks.onStateChange(state);\n }\n });\n\n // Subscribe to state changes\n const unsubscribeState = stateManager.subscribe((state) => {\n const previousState = currentState;\n currentState = state;\n\n // Trigger callbacks\n if (config.callbacks?.onStateChange) {\n config.callbacks.onStateChange(state);\n }\n\n // Check for connect/disconnect events\n if (!previousState?.accountId && state.accountId) {\n config.callbacks?.onConnect?.({\n accountId: state.accountId,\n publicKey: state.publicKey || '',\n });\n } else if (previousState?.accountId && !state.accountId) {\n config.callbacks?.onDisconnect?.();\n }\n });\n\n // Create isolated adapter for this client\n const clientAdapter = new WalletAdapter({\n onStateUpdate: async (adapterState: any) => {\n const { accountId, lastWalletId, privateKey } = adapterState;\n \n if (accountId !== currentState?.accountId) {\n const newState: WalletState = {\n accountId: accountId || null,\n publicKey: privateKey ? publicKeyFromPrivate(privateKey) : null,\n privateKey: privateKey || null,\n networkId,\n lastWalletId: lastWalletId || null,\n accessKeyContractId: currentState?.accessKeyContractId || null,\n };\n \n await stateManager.setState(newState);\n }\n },\n walletUrl: WIDGET_URL,\n });\n\n\n // Return client API\n return {\n // State accessors\n accountId: (): string | null => currentState?.accountId || null,\n publicKey: (): string | null => currentState?.publicKey || null,\n authStatus: (): \"SignedIn\" | \"SignedOut\" => currentState?.accountId ? \"SignedIn\" : \"SignedOut\",\n \n // State management\n getState: (): Promise<WalletState | null> => stateManager.getState(),\n setState: (state: WalletState): Promise<void> => stateManager.setState(state),\n clearState: (): Promise<void> => stateManager.clearState(),\n \n // State restoration for external management\n restoreFromExternalState: async (state: {\n accountId: string;\n publicKey: string;\n privateKey?: string;\n networkId: string;\n }): Promise<void> => {\n const walletState: WalletState = {\n accountId: state.accountId,\n publicKey: state.publicKey,\n privateKey: state.privateKey || null,\n networkId: state.networkId,\n lastWalletId: null,\n accessKeyContractId: null,\n };\n await stateManager.setState(walletState);\n },\n\n // Check if externally managed\n isExternallyManaged: (): boolean => {\n return stateManager instanceof ExternalStateManagerWrapper;\n },\n\n // Config management\n config: (newConfig?: Partial<NetworkConfig>): NetworkConfig => {\n if (newConfig) {\n Object.assign(networkConfig, newConfig);\n \n // If network changed, clear state\n if (newConfig.networkId && networkConfig.networkId !== newConfig.networkId) {\n stateManager.clearState();\n txHistoryManager.clearHistory();\n }\n }\n return networkConfig;\n },\n\n // Selection info\n selected: () => {\n const network = networkConfig.networkId;\n const nodeUrl = networkConfig.nodeUrl;\n const walletUrl = networkConfig.walletUrl;\n const helperUrl = networkConfig.helperUrl;\n const explorerUrl = networkConfig.explorerUrl;\n const account = currentState?.accountId;\n const contract = currentState?.accessKeyContractId;\n const publicKey = currentState?.publicKey;\n\n return {\n network,\n nodeUrl,\n walletUrl,\n helperUrl,\n explorerUrl,\n account,\n contract,\n publicKey\n };\n },\n\n // Authentication methods\n requestSignIn: async (\n params: Parameters<typeof near.requestSignIn>[0] = {},\n callbacks: Parameters<typeof near.requestSignIn>[1] = {}\n ): Promise<ReturnType<typeof near.requestSignIn>> => {\n const result = await near.requestSignIn(params, callbacks);\n \n // Update state with results\n if (result.accountId) {\n const newState: WalletState = {\n accountId: result.accountId,\n publicKey: result.publicKey,\n privateKey: null, // Will be set by adapter\n networkId,\n lastWalletId: null,\n accessKeyContractId: params.contractId || null,\n };\n await stateManager.setState(newState);\n }\n \n return result;\n },\n\n signOut: async () => {\n await clientAdapter.signOut();\n await stateManager.clearState();\n },\n\n // RPC methods\n sendRpc: near.sendRpc,\n \n // Query methods\n view: near.view,\n queryAccount: near.queryAccount,\n queryBlock: near.queryBlock,\n queryAccessKey: near.queryAccessKey,\n queryTx: near.queryTx,\n\n // Transaction methods\n sendTx: near.sendTx,\n signMessage: near.signMessage,\n\n // Transaction history\n localTxHistory: () => txHistoryManager.getHistory(),\n\n // State subscription\n subscribe: (callback: (state: WalletState) => void): (() => void) => {\n return stateManager.subscribe(callback);\n },\n\n // Transaction subscription\n onTx: (callback: (tx: TxStatus) => void): (() => void) => {\n return txHistoryManager.subscribe(callback);\n },\n\n // Action helpers\n actions: near.actions,\n\n // Utils and exports\n utils: near.utils,\n exp: near.exp,\n\n // Cleanup\n destroy: () => {\n unsubscribeState();\n },\n };\n}\n"]}