feat: init swift user orders on user account creation if needed

Author: LukasDeco

sdk/src/driftClient.ts

@@ -1738,6 +1738,24 @@ export class DriftClient {
 		return ix;
 	}
 
+	/**
+	 * Checks if a Swift User Orders account exists for the given authority.
+	 * The account pubkey is derived using the program ID and authority as seeds.
+	 * Makes an RPC call to check if the account exists on-chain.
+	 *
+	 * @param authority The authority public key to check for
+	 * @returns Promise that resolves to true if the account exists, false otherwise
+	 */
+	public async isSwiftUserOrdersAccountInitialized(
+		authority: PublicKey
+	): Promise<boolean> {
+		const swiftUserOrdersAccountPublicKey = getSwiftUserAccountPublicKey(
+			this.program.programId,
+			authority
+		);
+		return this.checkIfAccountExists(swiftUserOrdersAccountPublicKey);
+	}
+
 	public async reclaimRent(
 		subAccountId = 0,
 		txParams?: TxParams
@@ -2530,6 +2548,18 @@ export class DriftClient {
 				referrerInfo
 			);
 
+		const isSwiftUserOrdersAccountInitialized =
+			await this.isSwiftUserOrdersAccountInitialized(this.wallet.publicKey);
+
+		if (!isSwiftUserOrdersAccountInitialized) {
+			ixs.push(
+				await this.getInitializeSwiftUserOrdersAccountIx(
+					this.wallet.publicKey,
+					8
+				)
+			);
+		}
+
 		const spotMarket = this.getSpotMarketAccount(marketIndex);
 
 		const isSolMarket = spotMarket.mint.equals(WRAPPED_SOL_MINT);