Files
frontend/src/hooks/useVaultAssets.ts
2026-02-02 19:40:49 -08:00

279 lines
9.4 KiB
TypeScript

/**
* useVaultAssets: Encapsulates /assets/get and /assets/create for VaultScreen.
* - Fetches assets when vault is unlocked and token exists.
* - Exposes createAsset with 401/network error handling and list refresh on success.
*/
import { useState, useEffect, useCallback } from 'react';
import * as bip39 from 'bip39';
import AsyncStorage from '@react-native-async-storage/async-storage';
import { useAuth } from '../context/AuthContext';
import { assetsService } from '../services/assets.service';
import { getVaultStorageKeys, DEBUG_MODE } from '../config';
import { SentinelVault } from '../utils/crypto_core';
import { storageService } from '../services/storage.service';
import {
initialVaultAssets,
mapApiAssetsToVaultAssets,
type ApiAsset,
} from '../utils/vaultAssets';
import type { VaultAsset } from '../types';
// -----------------------------------------------------------------------------
// Types
// -----------------------------------------------------------------------------
export interface CreateAssetResult {
success: boolean;
isUnauthorized?: boolean;
error?: string;
}
export interface UseVaultAssetsReturn {
/** Current list (mock until API succeeds) */
assets: VaultAsset[];
/** Replace list (e.g. after external refresh) */
setAssets: React.Dispatch<React.SetStateAction<VaultAsset[]>>;
/** Refetch from GET /assets/get */
refreshAssets: () => Promise<void>;
/** Create asset via POST /assets/create; on success refreshes list */
createAsset: (params: { title: string; content: string }) => Promise<CreateAssetResult>;
/** Delete asset via POST /assets/delete; on success refreshes list */
deleteAsset: (assetId: number) => Promise<CreateAssetResult>;
/** Assign asset to heir via POST /assets/assign */
assignAsset: (assetId: number, heirEmail: string) => Promise<CreateAssetResult>;
/** True while create request is in flight */
isSealing: boolean;
/** Error message from last create failure (non-401) */
createError: string | null;
/** Clear createError */
clearCreateError: () => void;
}
// -----------------------------------------------------------------------------
// Hook
// -----------------------------------------------------------------------------
/**
* Vault assets list + create. Fetches on unlock when token exists; keeps mock on error.
*/
export function useVaultAssets(isUnlocked: boolean): UseVaultAssetsReturn {
const { user, token, signOut } = useAuth();
const [assets, setAssets] = useState<VaultAsset[]>(initialVaultAssets);
const [isSealing, setIsSealing] = useState(false);
const [createError, setCreateError] = useState<string | null>(null);
const refreshAssets = useCallback(async () => {
if (!token) return;
try {
const list = await assetsService.getMyAssets(token);
if (Array.isArray(list)) {
setAssets(mapApiAssetsToVaultAssets(list as ApiAsset[]));
}
} catch (err: unknown) {
const rawMessage = err instanceof Error ? err.message : String(err ?? '');
if (/Could not validate credentials/i.test(rawMessage)) {
signOut();
}
// Keep current assets (mock or previous fetch)
}
}, [token, signOut]);
// Fetch list when unlocked and token exists
useEffect(() => {
if (!isUnlocked || !token) return;
let cancelled = false;
assetsService
.getMyAssets(token)
.then((list) => {
if (!cancelled && Array.isArray(list)) {
setAssets(mapApiAssetsToVaultAssets(list as ApiAsset[]));
}
})
.catch((err) => {
if (!cancelled) {
const rawMessage = err instanceof Error ? err.message : String(err ?? '');
if (/Could not validate credentials/i.test(rawMessage)) {
signOut();
}
}
// Keep initial (mock) assets
});
return () => {
cancelled = true;
};
}, [isUnlocked, token]);
const createAsset = useCallback(
async ({
title,
content,
}: {
title: string;
content: string;
}): Promise<CreateAssetResult> => {
if (!token) {
return { success: false, error: 'Not logged in.' };
}
setIsSealing(true);
setCreateError(null);
try {
const vaultKeys = getVaultStorageKeys(user?.id ?? null);
const [s1Str, aesKeyHex, s0Str, s2Str] = await Promise.all([
AsyncStorage.getItem(vaultKeys.SHARE_SERVER),
AsyncStorage.getItem(vaultKeys.AES_KEY),
AsyncStorage.getItem(vaultKeys.SHARE_DEVICE),
AsyncStorage.getItem(vaultKeys.SHARE_HEIR),
]);
if (!s1Str || !aesKeyHex) {
throw new Error('Vault keys missing. Please re-unlock your vault.');
}
const vault = new SentinelVault();
const aesKey = Buffer.from(aesKeyHex, 'hex');
const encryptedBuffer = vault.encryptData(aesKey, content.trim());
const content_inner_encrypted = encryptedBuffer.toString('hex');
if (DEBUG_MODE) {
console.log('[DEBUG] Crypto Data during Asset Creation:');
console.log(' s0 (Device):', s0Str);
console.log(' s1 (Server):', s1Str);
console.log(' s2 (Heir): ', s2Str);
console.log(' AES Key: ', aesKeyHex);
console.log(' Encrypted: ', content_inner_encrypted);
}
const createdAsset = await assetsService.createAsset(
{
title: title.trim(),
private_key_shard: s1Str,
content_inner_encrypted,
},
token
);
// Backup plaintext content locally
if (createdAsset && createdAsset.id && user?.id) {
await storageService.saveAssetBackup(createdAsset.id, content, user.id);
}
await refreshAssets();
return { success: true };
} catch (err: unknown) {
const status =
err && typeof err === 'object' && 'status' in err
? (err as { status?: number }).status
: undefined;
const rawMessage =
err instanceof Error ? err.message : String(err ?? 'Failed to create.');
const isUnauthorized =
status === 401 || /401|Unauthorized/i.test(rawMessage);
if (isUnauthorized) {
signOut();
return { success: false, isUnauthorized: true };
}
const friendlyMessage = /failed to fetch|network error/i.test(rawMessage)
? 'Network error. Please check that the backend is running and reachable (see API_BASE_URL in config).'
: rawMessage;
setCreateError(friendlyMessage);
return { success: false, error: friendlyMessage };
} finally {
setIsSealing(false);
}
},
[token, user, refreshAssets, signOut]
);
const deleteAsset = useCallback(
async (assetId: number): Promise<CreateAssetResult> => {
if (!token) {
return { success: false, error: 'Not logged in.' };
}
setIsSealing(true);
setCreateError(null);
try {
await assetsService.deleteAsset(assetId, token);
await refreshAssets();
return { success: true };
} catch (err: unknown) {
const status =
err && typeof err === 'object' && 'status' in err
? (err as { status?: number }).status
: undefined;
const rawMessage =
err instanceof Error ? err.message : String(err ?? 'Failed to delete.');
const isUnauthorized =
status === 401 || /401|Unauthorized/i.test(rawMessage);
if (isUnauthorized) {
signOut();
return { success: false, isUnauthorized: true };
}
const friendlyMessage = /failed to fetch|network error/i.test(rawMessage)
? 'Network error. Please check that the backend is running and reachable.'
: rawMessage;
setCreateError(friendlyMessage);
return { success: false, error: friendlyMessage };
} finally {
setIsSealing(false);
}
},
[token, refreshAssets, signOut]
);
const assignAsset = useCallback(
async (assetId: number, heirEmail: string): Promise<CreateAssetResult> => {
if (!token) {
return { success: false, error: 'Not logged in.' };
}
setIsSealing(true);
setCreateError(null);
try {
await assetsService.assignAsset({ asset_id: assetId, heir_email: heirEmail }, token);
await refreshAssets();
return { success: true };
} catch (err: unknown) {
const status =
err && typeof err === 'object' && 'status' in err
? (err as { status?: number }).status
: undefined;
const rawMessage =
err instanceof Error ? err.message : String(err ?? 'Failed to assign.');
const isUnauthorized =
status === 401 || /401|Unauthorized/i.test(rawMessage);
if (isUnauthorized) {
signOut();
return { success: false, isUnauthorized: true };
}
const friendlyMessage = /failed to fetch|network error/i.test(rawMessage)
? 'Network error. Please check that the backend is running and reachable.'
: rawMessage;
setCreateError(friendlyMessage);
return { success: false, error: friendlyMessage };
} finally {
setIsSealing(false);
}
},
[token, signOut]
);
const clearCreateError = useCallback(() => setCreateError(null), []);
return {
assets,
setAssets,
refreshAssets,
createAsset,
deleteAsset,
assignAsset,
isSealing,
createError,
clearCreateError,
};
}