Merge branch 'master' into active_did_redux

src/libs/util.ts

@@ -614,58 +614,65 @@ export const retrieveAllAccountsMetadata = async (): Promise<
   return result;
 };
 
+export const DUPLICATE_ACCOUNT_ERROR = "Cannot import duplicate account.";
+
 /**
- * Saves a new identity to both SQL and Dexie databases
+ * Saves a new identity to SQL database
  */
 export async function saveNewIdentity(
   identity: IIdentifier,
   mnemonic: string,
   derivationPath: string,
 ): Promise<void> {
-  try {
-    // add to the new sql db
-    const platformService = await getPlatformService();
+  // add to the new sql db
+  const platformService = await getPlatformService();
 
-    const secrets = await platformService.dbQuery(
-      `SELECT secretBase64 FROM secret`,
+  // Check if account already exists before attempting to save
+  const existingAccount = await platformService.dbQuery(
+    "SELECT did FROM accounts WHERE did = ?",
+    [identity.did],
+  );
+
+  if (existingAccount?.values?.length) {
+    throw new Error(
+      `Account with DID ${identity.did} already exists. ${DUPLICATE_ACCOUNT_ERROR}`,
     );
-    if (!secrets?.values?.length || !secrets.values[0]?.length) {
-      throw new Error(
-        "No initial encryption supported. We recommend you clear your data and start over.",
-      );
-    }
+  }
 
-    const secretBase64 = secrets.values[0][0] as string;
+  const secrets = await platformService.dbQuery(
+    `SELECT secretBase64 FROM secret`,
+  );
+  if (!secrets?.values?.length || !secrets.values[0]?.length) {
+    throw new Error(
+      "No initial encryption supported. We recommend you clear your data and start over.",
+    );
+  }
 
-    const secret = base64ToArrayBuffer(secretBase64);
-    const identityStr = JSON.stringify(identity);
-    const encryptedIdentity = await simpleEncrypt(identityStr, secret);
-    const encryptedMnemonic = await simpleEncrypt(mnemonic, secret);
-    const encryptedIdentityBase64 = arrayBufferToBase64(encryptedIdentity);
-    const encryptedMnemonicBase64 = arrayBufferToBase64(encryptedMnemonic);
+  const secretBase64 = secrets.values[0][0] as string;
 
-    const sql = `INSERT INTO accounts (dateCreated, derivationPath, did, identityEncrBase64, mnemonicEncrBase64, publicKeyHex)
-       VALUES (?, ?, ?, ?, ?, ?)`;
-    const params = [
-      new Date().toISOString(),
-      derivationPath,
-      identity.did,
-      encryptedIdentityBase64,
-      encryptedMnemonicBase64,
-      identity.keys[0].publicKeyHex,
-    ];
-    await platformService.dbExec(sql, params);
+  const secret = base64ToArrayBuffer(secretBase64);
+  const identityStr = JSON.stringify(identity);
+  const encryptedIdentity = await simpleEncrypt(identityStr, secret);
+  const encryptedMnemonic = await simpleEncrypt(mnemonic, secret);
+  const encryptedIdentityBase64 = arrayBufferToBase64(encryptedIdentity);
+  const encryptedMnemonicBase64 = arrayBufferToBase64(encryptedMnemonic);
+
+  const sql = `INSERT INTO accounts (dateCreated, derivationPath, did, identityEncrBase64, mnemonicEncrBase64, publicKeyHex)
+      VALUES (?, ?, ?, ?, ?, ?)`;
+  const params = [
+    new Date().toISOString(),
+    derivationPath,
+    identity.did,
+    encryptedIdentityBase64,
+    encryptedMnemonicBase64,
+    identity.keys[0].publicKeyHex,
+  ];
+  await platformService.dbExec(sql, params);
 
     // Update active identity in the active_identity table instead of settings
     await platformService.updateActiveDid(identity.did);
 
-    await platformService.insertNewDidIntoSettings(identity.did);
-  } catch (error) {
-    logger.error("Failed to update default settings:", error);
-    throw new Error(
-      "Failed to set default settings. Please try again or restart the app.",
-    );
-  }
+  await platformService.insertNewDidIntoSettings(identity.did);
 }
 
 /**
@@ -1034,3 +1041,58 @@ export async function importFromMnemonic(
     }
   }
 }
+
+/**
+ * Checks if an account with the given DID already exists in the database
+ *
+ * @param did - The DID to check for duplicates
+ * @returns Promise<boolean> - True if account already exists, false otherwise
+ * @throws Error if database query fails
+ */
+export async function checkForDuplicateAccount(did: string): Promise<boolean>;
+
+/**
+ * Checks if an account with the given DID already exists in the database
+ *
+ * @param mnemonic - The mnemonic phrase to derive DID from
+ * @param derivationPath - The derivation path to use
+ * @returns Promise<boolean> - True if account already exists, false otherwise
+ * @throws Error if database query fails
+ */
+export async function checkForDuplicateAccount(
+  mnemonic: string,
+  derivationPath: string,
+): Promise<boolean>;
+
+/**
+ * Implementation of checkForDuplicateAccount with overloaded signatures
+ */
+export async function checkForDuplicateAccount(
+  didOrMnemonic: string,
+  derivationPath?: string,
+): Promise<boolean> {
+  let didToCheck: string;
+
+  if (derivationPath) {
+    // Derive the DID from mnemonic and derivation path
+    const [address, privateHex, publicHex] = deriveAddress(
+      didOrMnemonic.trim().toLowerCase(),
+      derivationPath,
+    );
+
+    const newId = newIdentifier(address, privateHex, publicHex, derivationPath);
+    didToCheck = newId.did;
+  } else {
+    // Use the provided DID directly
+    didToCheck = didOrMnemonic;
+  }
+
+  // Check if an account with this DID already exists
+  const platformService = await getPlatformService();
+  const existingAccount = await platformService.dbQuery(
+    "SELECT did FROM accounts WHERE did = ?",
+    [didToCheck],
+  );
+
+  return (existingAccount?.values?.length ?? 0) > 0;
+}