feat: [wip] accountStore

src/lib/accounts/accountKeyDB.ts

@@ -11,13 +11,13 @@ type SavedObject = {
 	actKeyPrivate: CryptoKey;
 };
 
-type AccountCredentials = {
+export type AccountCredentials = {
 	idKeyId: string;
 	encodedIdKeyPair?: EncodedBlahKeyPair;
 	actKeyPair: BlahKeyPair;
 };
 
-interface AccountKeyStoreDB extends DBSchema {
+interface AccountKeyDBSchema extends DBSchema {
 	[IDB_OBJECT_STORE_NAME]: {
 		key: string;
 		value: SavedObject;
@@ -36,15 +36,15 @@ async function savedObjectToAccountCredentials(
 	};
 }
 
-export class AccountKeyStore {
-	private db: IDBPDatabase<AccountKeyStoreDB>;
+class AccountKeyDB {
+	private db: IDBPDatabase<AccountKeyDBSchema>;
 
-	private constructor(db: IDBPDatabase<AccountKeyStoreDB>) {
+	private constructor(db: IDBPDatabase<AccountKeyDBSchema>) {
 		this.db = db;
 	}
 
-	static async open(): Promise<AccountKeyStore> {
-		const db = await openDB<AccountKeyStoreDB>(IDB_NAME, 1, {
+	static async open(): Promise<AccountKeyDB> {
+		const db = await openDB<AccountKeyDBSchema>(IDB_NAME, 1, {
 			upgrade(db) {
 				if (!db.objectStoreNames.contains(IDB_OBJECT_STORE_NAME)) {
 					const objStore = db.createObjectStore(IDB_OBJECT_STORE_NAME, { keyPath: 'idKeyId' });
@@ -53,7 +53,7 @@ export class AccountKeyStore {
 			}
 		});
 
-		return new AccountKeyStore(db);
+		return new AccountKeyDB(db);
 	}
 
 	async addAccount(
@@ -115,3 +115,13 @@ export class AccountKeyStore {
 		this.db.close();
 	}
 }
+
+let accountKeyDB: AccountKeyDB | null = null;
+export async function openAccountKeyDB(): Promise<AccountKeyDB> {
+	if (!accountKeyDB) {
+		accountKeyDB = await AccountKeyDB.open();
+	}
+
+	return accountKeyDB;
+}
+export type { AccountKeyDB };

src/lib/accounts/accountStore.ts

@@ -0,0 +1,85 @@
+import { writable, type Readable } from 'svelte/store';
+import { type AccountKeyDB, openAccountKeyDB } from './accountKeyDB';
+import { BlahIdentity, type BlahIdentityFile, type BlahProfile } from '@blah-im/core/identity';
+import { type IdentityFileDB, openIdentityFileDB } from '$lib/identityFiles/identityFileDB';
+import { BlahKeyPair } from '@blah-im/core/crypto';
+
+export type Account = BlahIdentityFile & {
+	holdingKeyPrivate: boolean;
+	holdingPrivateOfActKey?: string;
+};
+
+export class AccountStore implements Readable<Account[]> {
+	private keyDB: AccountKeyDB;
+	private identityFileDB: IdentityFileDB;
+	private internalStore = writable<Account[]>([]);
+	subscribe = this.internalStore.subscribe;
+
+	private constructor(keyDB: AccountKeyDB, identityFileDB: IdentityFileDB) {
+		this.keyDB = keyDB;
+		this.identityFileDB = identityFileDB;
+	}
+
+	static async open(): Promise<AccountStore> {
+		const keyDB = await openAccountKeyDB();
+		const identityFileDB = await openIdentityFileDB();
+		const store = new AccountStore(keyDB, identityFileDB);
+		await store.loadAccounts();
+		return store;
+	}
+
+	async loadAccounts() {
+		const accountCreds = await this.keyDB.fetchAllAccounts();
+		const identityFileMap = await this.identityFileDB.fetchIdentityFiles(
+			accountCreds.map((x) => x.idKeyId)
+		);
+
+		const accounts = accountCreds.flatMap((creds) => {
+			const identityFile = identityFileMap.get(creds.idKeyId);
+			if (!identityFile) return [];
+			return [
+				{
+					...identityFile,
+					holdingKeyPrivate: !!creds.encodedIdKeyPair,
+					holdingPrivateOfActKey: creds.actKeyPair.id
+				}
+			];
+		});
+
+		this.internalStore.set(accounts);
+	}
+
+	async identityForAccount(
+		accountOrIdKeyId: Account | string,
+		password?: string
+	): Promise<BlahIdentity> {
+		const idKeyId =
+			typeof accountOrIdKeyId === 'string' ? accountOrIdKeyId : accountOrIdKeyId.id_key;
+
+		const identityFile = await this.identityFileDB.fetchIdentityFile(idKeyId);
+		if (!identityFile) throw new Error('Identity file not found');
+
+		const accountCreds = await this.keyDB.fetchAccount(idKeyId);
+		const encodedIdKeyPair = accountCreds?.encodedIdKeyPair;
+		const idKeyPair = encodedIdKeyPair
+			? await BlahKeyPair.fromEncoded(encodedIdKeyPair, password)
+			: undefined;
+		const actKeyPair = accountCreds?.actKeyPair;
+
+		return await BlahIdentity.fromIdentityFile(identityFile, idKeyPair, actKeyPair);
+	}
+
+	async saveIdentityFile(identity: BlahIdentity) {
+		const identityFile = identity.generateIdentityFile();
+		await this.identityFileDB.updateIdentityFile(identityFile);
+	}
+
+	async createAccount(profile: BlahProfile, password: string) {
+		const idKeyPair = await BlahKeyPair.generate(true);
+		const actKeyPair = await BlahKeyPair.generate(false);
+		const identity = await BlahIdentity.create(idKeyPair, actKeyPair, profile);
+		const encodedIdKeyPair = await idKeyPair.encode(password);
+		await this.keyDB.addAccount(idKeyPair.id, actKeyPair, encodedIdKeyPair);
+		await this.saveIdentityFile(identity);
+	}
+}

src/lib/identityFiles/identityFileDB.ts

@@ -0,0 +1,81 @@
+import type { BlahIdentityFile } from '@blah-im/core/identity';
+import { openDB, type DBSchema, type IDBPDatabase } from 'idb';
+
+const IDB_NAME = 'weblah-identities';
+const IDB_OBJECT_STORE_NAME = 'identities';
+
+const IDENTITY_FILE_MAX_AGE = 1000 * 60 * 60 * 24 * 30; // 30 days
+
+interface IdentityFileDBSchema extends DBSchema {
+	[IDB_OBJECT_STORE_NAME]: {
+		key: string;
+		value: BlahIdentityFile & { lastUpdatedAt: Date };
+		indexes: { id_urls: string };
+	};
+}
+
+class IdentityFileDB {
+	private db: IDBPDatabase<IdentityFileDBSchema>;
+
+	private constructor(db: IDBPDatabase<IdentityFileDBSchema>) {
+		this.db = db;
+	}
+
+	static async open(): Promise<IdentityFileDB> {
+		const db = await openDB<IdentityFileDBSchema>(IDB_NAME, 1, {
+			upgrade(db) {
+				if (!db.objectStoreNames.contains(IDB_OBJECT_STORE_NAME)) {
+					const store = db.createObjectStore(IDB_OBJECT_STORE_NAME, { keyPath: 'idKeyId' });
+					store.createIndex('id_urls', 'profile.signee.payload.id_urls', {
+						multiEntry: true,
+						unique: true
+					});
+				}
+			}
+		});
+
+		const store = new IdentityFileDB(db);
+		await store.removeExpiredIdentityFiles();
+		return store;
+	}
+
+	async updateIdentityFile(identityFile: BlahIdentityFile): Promise<void> {
+		await this.db.put(IDB_OBJECT_STORE_NAME, { ...identityFile, lastUpdatedAt: new Date() });
+	}
+
+	async fetchIdentityFile(idKeyId: string): Promise<BlahIdentityFile | undefined> {
+		return await this.db.get(IDB_OBJECT_STORE_NAME, idKeyId);
+	}
+
+	async fetchIdentityFiles(idKeyIds: string[]): Promise<Map<string, BlahIdentityFile>> {
+		return new Map(
+			(
+				await Promise.all(
+					idKeyIds.map(async (idKeyId): Promise<[string, BlahIdentityFile] | null> => {
+						const profile = await this.fetchIdentityFile(idKeyId);
+						return profile ? [idKeyId, profile] : null;
+					})
+				)
+			).filter((x): x is [string, BlahIdentityFile] => !!x)
+		);
+	}
+
+	async getIdentityFileByIdUrl(idUrl: string): Promise<BlahIdentityFile | undefined> {
+		return await this.db.getFromIndex(IDB_OBJECT_STORE_NAME, 'id_urls', idUrl);
+	}
+
+	async removeExpiredIdentityFiles(): Promise<void> {
+		const now = new Date();
+		const cutoff = new Date(now.getTime() - IDENTITY_FILE_MAX_AGE);
+		await this.db.delete(IDB_OBJECT_STORE_NAME, IDBKeyRange.upperBound(cutoff));
+	}
+}
+
+let identityFileDB: IdentityFileDB | null = null;
+export async function openIdentityFileDB(): Promise<IdentityFileDB> {
+	if (!identityFileDB) {
+		identityFileDB = await IdentityFileDB.open();
+	}
+	return identityFileDB;
+}
+export type { IdentityFileDB };

src/lib/profileStore.ts

@@ -1,56 +0,0 @@
-import type { BlahProfile } from '@blah-im/core/identity';
-import { openDB, type DBSchema, type IDBPDatabase } from 'idb';
-
-const IDB_NAME = 'weblah-profiles';
-const IDB_OBJECT_STORE_NAME = 'profiles';
-
-const PROFILE_MAX_AGE = 1000 * 60 * 60 * 24 * 30; // 30 days
-
-interface ProfileStoreDB extends DBSchema {
-	[IDB_OBJECT_STORE_NAME]: {
-		key: string;
-		value: BlahProfile & { idKeyId: string; lastUpdatedAt: Date };
-		indexes: { id_urls: string };
-	};
-}
-
-export class ProfileStore {
-	private db: IDBPDatabase<ProfileStoreDB>;
-
-	private constructor(db: IDBPDatabase<ProfileStoreDB>) {
-		this.db = db;
-	}
-
-	static async open(): Promise<ProfileStore> {
-		const db = await openDB<ProfileStoreDB>(IDB_NAME, 1, {
-			upgrade(db) {
-				if (!db.objectStoreNames.contains(IDB_OBJECT_STORE_NAME)) {
-					const store = db.createObjectStore(IDB_OBJECT_STORE_NAME, { keyPath: 'idKeyId' });
-					store.createIndex('id_urls', 'id_urls', { multiEntry: true, unique: true });
-				}
-			}
-		});
-
-		const store = new ProfileStore(db);
-		await store.removeOldProfiles();
-		return store;
-	}
-
-	async updateProfile(idKeyId: string, profile: BlahProfile): Promise<void> {
-		await this.db.put(IDB_OBJECT_STORE_NAME, { idKeyId, ...profile, lastUpdatedAt: new Date() });
-	}
-
-	async getProfile(idKeyId: string): Promise<BlahProfile | undefined> {
-		return await this.db.get(IDB_OBJECT_STORE_NAME, idKeyId);
-	}
-
-	async getProfileByIdUrl(idUrl: string): Promise<BlahProfile | undefined> {
-		return await this.db.getFromIndex(IDB_OBJECT_STORE_NAME, 'id_urls', idUrl);
-	}
-
-	async removeOldProfiles(): Promise<void> {
-		const now = new Date();
-		const cutoff = new Date(now.getTime() - PROFILE_MAX_AGE);
-		await this.db.delete(IDB_OBJECT_STORE_NAME, IDBKeyRange.upperBound(cutoff));
-	}
-}