feat(wasm-utxo): improve transaction parsing with external outputs support

packages/wasm-utxo/cli/test/fixtures/tx_bitcoin_fullsigned.txt

@@ -1,68 +1,68 @@
 tx: None
 ├─ version: 1i32
 ├─ lock_time: 0u32
-├─ txid: a341d563b6d62d3c078017ae60a72fae551f7381634871b2764422e9d4968061 (32 bytes)
-├─ ntxid: 819e1ce50e5f92d52f3d6cfbb4084355392777d8b23b0bce674674577a940608 (32 bytes)
-├─ wtxid: bfb14a40525fa2a173ce7fc0fb4f7fd7d89b07f5b0ea0073e77487de3c0b2d97 (32 bytes)
+├─ txid: 895306f11e2bdb8d0ba6eca19c862ed0cab3391a3e02cffd8a02d386eea67e8b (32 bytes)
+├─ ntxid: a8f0a1efb5a77f4fe2e40c379d3e122d3b30ac0b88aa80c6e70d3fd72a6cf736 (32 bytes)
+├─ wtxid: d93620afa90de598a520acf58551308a9d141f16c276261dcbff2f57828d2c87 (32 bytes)
 ├─ inputs: 7u64
 │  ├─ input_0: None
-│  │  ├─ prev_txid: d99efae199fc4d54e5825a8e3368a395e9eb329915cfb5d88dc311507d184836 (32 bytes)
+│  │  ├─ prev_txid: 7cce12effc2ea564c4227333fd305447e0de7b3ae7a5fcc751effff3ea1377e1 (32 bytes)
 │  │  ├─ prev_vout: 0u32
 │  │  ├─ sequence: 4294967295u32
-│  │  └─ script_sig: 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 (253 bytes)
+│  │  └─ script_sig: 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 (252 bytes)
 │  ├─ input_1: None
-│  │  ├─ prev_txid: 1ec9729a1b25373a30f0fe6e0879b31136a54f2f8c98618c46862748a08c5e78 (32 bytes)
+│  │  ├─ prev_txid: b9c7b288fd6aa0d1415996e2a5dad9a4e070c129e179277f53e32f602f180646 (32 bytes)
 │  │  ├─ prev_vout: 1u32
 │  │  ├─ sequence: 4294967295u32
 │  │  ├─ script_sig: 22002046d4800a1393330196085399ed4a1700b4c2fd38c52188c3a3a91f721f3c9600 (35 bytes)
 │  │  └─ witness: 4u64
 │  │     ├─ item_0:  (0 bytes)
-│  │     ├─ item_1: 304402205f760c27e7598a9e80a2adaf1d925c67d2e6c24aec773e5cce56d234159ab1e502201ce97d5659681ab881e10acc9c8021587f843a15336c3a8b6fb2efc053928b8501 (71 bytes)
-│  │     ├─ item_2: 3045022100df41fbcbf3c7f77182627bcb7cd17973b8ca58c16b81de98e94c0293dcf33ac202206017171914fdfbc80f933ab3b5aae4e3d36e968757e6c0788ffbeaaebc68e21e01 (72 bytes)
+│  │     ├─ item_1: 3045022100c3dddbc8b20f4aac003165182fb72357486da8a1538d151b06aca94f7894e169022050756f3949e780fd15e3a25baf7b3b3f674422c7ee8aff1d2f77a0f4d7f42ada01 (72 bytes)
+│  │     ├─ item_2: 304402204f46d55ab3c78be2dd7b2df1a04aa929478c32445ea948923dc36f13eea30d23022054db1d0f3e7922e1ee1e7c3610b73c0297050c37cc4ac12e8ac63cb71dc314a501 (71 bytes)
 │  │     └─ item_3: 522102a585f3fab49b5ef95346d932221a221bd55ec191f15533e0f270b3582574f0352102c4f7866cfd5996bc1068a96313ca15e9ccb5e984583a07340dddae7af014605b2102234531bc9119a36a7946e95aeb74915dd087c7b44f517b8eeeb73f89a0ff1a9953ae (105 bytes)
 │  ├─ input_2: None
-│  │  ├─ prev_txid: bb0dfbeba59bba69e3ce07a54346f804c543fa46d828ed539d11231adbaa8b7b (32 bytes)
+│  │  ├─ prev_txid: 1f57d9560ae9071600b696533192dc17799164fd3fa12804a7f7eb4201c4d5dd (32 bytes)
 │  │  ├─ prev_vout: 2u32
 │  │  ├─ sequence: 4294967295u32
 │  │  ├─ script_sig:  (0 bytes)
 │  │  └─ witness: 4u64
 │  │     ├─ item_0:  (0 bytes)
-│  │     ├─ item_1: 3045022100d3b03fb77553144e14171c7b1b517a3bf33df87370b65e337f0a50844562261e0220585bc0913b56ad968161d343f321d77f5f94ff3cf62545932f1509239a15a38e01 (72 bytes)
-│  │     ├─ item_2: 304402206441089c8c71a4926b49a5ab12bfaa86c4b64abbc519b3d217d68fe71bc43bee02203e17d0752c0b411e9477c22c2f4556a62da39e60095c6e0774bf42aa8f491b4d01 (71 bytes)
+│  │     ├─ item_1: 304402207017fae20521ac634cfaf259714d370efcd196f83fb8d7c3133207900f27355902201e9b7f217987da96f77b3ba33e868987d13257cc03a05af959e34be2719fe1b501 (71 bytes)
+│  │     ├─ item_2: 3045022100a9a571f171172962c80bf97099c0f1a809bec183af83dabe65bfc51ff1084548022047376a83e5d8bd5bfb07c5720bf90535d9a0ba5837172235132530387618b95901 (72 bytes)
 │  │     └─ item_3: 522103519e572ab468560d1f8d0f87699d098308e166905f5dcae4390f060faa8f1ce32103a05bc26391221d685e18daaff36a1e95c34f99451253c16cd42650db278a79112102e80a08885c353676b820cdc290e6d81a0ac95a03e8abbf4bb7aeebfb70feb41853ae (105 bytes)
 │  ├─ input_3: None
-│  │  ├─ prev_txid: a662a5ffebf58bf3e65e53456c67c029cc154a2409740d8cd37fdee7559c5efd (32 bytes)
+│  │  ├─ prev_txid: fc8fe5ff2a818c7661a4629809df2a1ffd60b6d16549fbf4882b54e7413ff8e6 (32 bytes)
 │  │  ├─ prev_vout: 3u32
 │  │  ├─ sequence: 4294967295u32
 │  │  ├─ script_sig:  (0 bytes)
 │  │  └─ witness: 4u64
-│  │     ├─ item_0: e7dab0d277ce7c41933136b44dcabef400f1d0e622a2255f9867d807bc8e0008cfd30766d36d736c8df7aa32917de59d0832b481c499f0917876134532306d45 (64 bytes)
-│  │     ├─ item_1: 83b1bb7c6ce5868c8a723c4d350591894809b1335586f60cbfccc6dd4e28b8630a74637b1b242e5a389540db94f23bcbedee9c783830cb2afaff1f2763dbdb7b (64 bytes)
+│  │     ├─ item_0: ce28402fd5d3544b9f3a8f21bc122c2147a9b17256458eb5b69b33c0ea5d2531b72108238a7493f2dd264221a87119b5343c16dcc48e941ba507243624f3d3c8 (64 bytes)
+│  │     ├─ item_1: be30d2f4e624a99d258f9de83971d249611d1956908b64c8914fe2a347ecd9547b7b67aa6f544e9b5b21d265f7f2b83c67c40c1fc6e22deabbdc320ed1fc6080 (64 bytes)
 │  │     ├─ item_2: 207373d723ce0a87f8fdd66843be12dae9d51939f68188d5ad96920bef5f51f496ad20aa88ca194fda43486504b86ac9b71f10fc41de7b1713874839427f74e78c2d5aac (68 bytes)
 │  │     └─ item_3: c0bc17ea2bbf6ff46bd5c0c3780be2a63880eb7bb782b39ed86f29b99f4882994e1b178b1b55d3c6aac7b039e3422dfdb9c9d75d4d6fc908e9743e88b651e48d83 (65 bytes)
 │  ├─ input_4: None
-│  │  ├─ prev_txid: d394375cee23b3b9951488c0403529157a85b058edc0351546d9eb4807e8a1d3 (32 bytes)
+│  │  ├─ prev_txid: 998804e6718d94c77eef1e8b3cd787bcc2dbfcbd6c009ab33043e7e500d5b49b (32 bytes)
 │  │  ├─ prev_vout: 4u32
 │  │  ├─ sequence: 4294967295u32
 │  │  ├─ script_sig:  (0 bytes)
 │  │  └─ witness: 4u64
-│  │     ├─ item_0: 4d8e50128b5c61dd449b352a6d6f3d611e163b0794c8c2d057d25401957bb07a70420e336e18f6b255d5b869570c087091c30c1a33f0cac0a40d90d0514c69a4 (64 bytes)
-│  │     ├─ item_1: 0a1e013f6d57fb8b248b2b19b08b34c1a3cd5ff6de4acdf19dd4ce0e02d42154856dd569f4668f2abaccbb50ce81a9d2f53efdfb627c2cb14cf92c4189a35da7 (64 bytes)
+│  │     ├─ item_0: 63fb7b832f6aa0f406554c195a96086b7e14468e4622b8e9976b3a83dca53a7c9152649a6d42d77c91d078eee2044e40c9ded9c90c0ee73f73930e38480f5063 (64 bytes)
+│  │     ├─ item_1: 48ee7fb32dc07262ed7be7d907734df486ae6e54018d0b109518c7ae344366f72a234bdf28bce46a9fb1ef49e9292c26a4d1ce228936bf2824c38bf866ba371a (64 bytes)
 │  │     ├─ item_2: 20643151ab03f3a97bb86d3592f12f8d25a8026d89cd47342fc1b49c5e2e63478bad20035c9d632db2ddb8f90cf3ccfc931822bcb1f24562b23ae041abf12e54bca64dac (68 bytes)
 │  │     └─ item_3: c1a107a403f7a207e7b1f552d3fd3f55f64ae40e149d0d26f4868ad7faec949eb7637e37cac6e5f22347ab68e876b559117d9597ee7b37fb983c2ab9e51023c976 (65 bytes)
 │  ├─ input_5: None
-│  │  ├─ prev_txid: 0d2f7f3486edaefc6ab92c21f7caf90085c4de4adac491106fd8a0e4f563dea3 (32 bytes)
+│  │  ├─ prev_txid: 02b23e9ffd550fa053f4c43e097b8114e463c8ba52c72b30d31d10cde853aabf (32 bytes)
 │  │  ├─ prev_vout: 5u32
 │  │  ├─ sequence: 4294967295u32
 │  │  ├─ script_sig:  (0 bytes)
 │  │  └─ witness: 1u64
-│  │     └─ item_0: 2ea4aeeef7c10765ed7bdce7ac429b7395e08cf55083df38384781054b0880e244fe8a2d847a8c334431322d0eeba4e34872ef6052e2044fff7fa8763ce0c20b (64 bytes)
+│  │     └─ item_0: 0cfa38061dca7d6281adb9d2211757e54519b82cb27071e516ef86a7b8f8825988376fea2664afbdb2de6f9923f53dbbb7f5afd1f919f96c756e31da4342dec4 (64 bytes)
 │  └─ input_6: None
-│     ├─ prev_txid: 97441d99a8d66f124ab3c9de26b87bd00aeb1547051c842a88165c1b089ee902 (32 bytes)
+│     ├─ prev_txid: 200d021345d40b204cc22a07ebad78da17159f34c2c656a2f4a51d68c6ca7754 (32 bytes)
 │     ├─ prev_vout: 6u32
 │     ├─ sequence: 4294967295u32
-│     └─ script_sig: 483045022100d2a7abb6c0563c3000e37412a9b97f6352d17e40960456fe830d264f0474f8b6022038d5cdbe88a319de5d7b7db8f57d0a92524beb242729b46a617adb530f2fa0d00123210336ef228ffe9b8efffba052c32d334660dd1f8366cf8fe44ae5aa672b6b629095ac (109 bytes)
-└─ outputs: 5u64
+│     └─ script_sig: 473044022066ba18beb6d351e087fe1203f4a0e47ddcc035882f9cd30a83e2d92febe9eff90220664396d8ebdcd04bef62a0781c1261279493b2ad88dc79eddc55f11e3ebcdb9d0123210336ef228ffe9b8efffba052c32d334660dd1f8366cf8fe44ae5aa672b6b629095ac (108 bytes)
+└─ outputs: 8u64
    ├─ output_0: None
    │  ├─ value: 900u64
    │  ├─ script_pubkey: a914d909474404c124a3d04c3fbff61faa49cf43c58b87 (23 bytes)
@@ -79,7 +79,18 @@ tx: None
    │  ├─ value: 900u64
    │  ├─ script_pubkey: 5120b27227f5cadc056afea4b02b4b97b9a0151786234c26ad588dccf134e78931c6 (34 bytes)
    │  └─ address: bc1pkfez0aw2mszk4l4ykq45h9ae5q230p3rfsn26kydencnfeufx8rq23ty2z
-   └─ output_4: None
+   ├─ output_4: None
+   │  ├─ value: 900u64
+   │  ├─ script_pubkey: 51204f73b5561399eb397b5ab413e090cc0c48ff703a61afe47cf7d47a23d43b978b (34 bytes)
+   │  └─ address: bc1pfaem24snn84nj766ksf7pyxvp3y07up6vxh7gl8h63az84pmj79sehcc5d
+   ├─ output_5: None
+   │  ├─ value: 900u64
+   │  ├─ script_pubkey: a9141e490a2a3641ffccc557aecddca67104f42978b387 (23 bytes)
+   │  └─ address: 34T9hBmUH9m7aCiJzk3BCPuLaGdGKRmWdL
+   ├─ output_6: None
+   │  ├─ value: 900u64
+   │  ├─ script_pubkey: a914954288203f9697e25eaecb48d85b8a8608c385cf87 (23 bytes)
+   │  └─ address: 3FJEJqGMWCA8XUnK1jypEy7bu74YMCT8eE
+   └─ output_7: None
       ├─ value: 900u64
-      ├─ script_pubkey: 51204f73b5561399eb397b5ab413e090cc0c48ff703a61afe47cf7d47a23d43b978b (34 bytes)
-      └─ address: bc1pfaem24snn84nj766ksf7pyxvp3y07up6vxh7gl8h63az84pmj79sehcc5d
+      └─ script_pubkey: 6a0f736574656320617374726f6e6f6d79 (17 bytes)

packages/wasm-utxo/js/README.md

@@ -17,13 +17,15 @@ type-safe API over the raw WASM bindings.
 
    - Generated by `wasm-bindgen` from Rust code
    - Exports classes with static methods (e.g., `AddressNamespace`, `UtxolibCompatNamespace`)
+   - Uses `snake_case` naming (Rust convention)
    - Uses loose types (`any`, `string | null`) due to WASM-bindgen limitations
 
 2. **Namespace Wrapper Files** (e.g., `address.ts`, `utxolibCompat.ts`, `fixedScriptWallet.ts`)
 
    - Import the generated WASM namespace classes
    - Define precise TypeScript types to replace `any` types
    - Export individual functions that wrap the static WASM methods
+   - Convert `snake_case` WASM methods to `camelCase` (JavaScript convention)
    - Re-export related types for convenience
 
 3. **Shared Type Files** (e.g., `coinName.ts`, `triple.ts`)
@@ -42,8 +44,9 @@ type-safe API over the raw WASM bindings.
 Given a WASM-generated class:
 
 ```typescript
-// wasm/wasm_utxo.d.ts (generated)
+// wasm/wasm_utxo.d.ts (generated by wasm-bindgen)
 export class AddressNamespace {
+  // Note: snake_case naming from Rust
   static to_output_script_with_coin(address: string, coin: string): Uint8Array;
   static from_output_script_with_coin(
     script: Uint8Array,
@@ -53,7 +56,7 @@ export class AddressNamespace {
 }
 ```
 
-We create a wrapper module:
+We create a wrapper module that provides better types and camelCase naming:
 
 ```typescript
 // address.ts
@@ -62,7 +65,9 @@ import type { CoinName } from "./coinName";
 
 export type AddressFormat = "default" | "cashaddr";
 
+// Wrapper provides camelCase naming and precise types
 export function toOutputScriptWithCoin(address: string, coin: CoinName): Uint8Array {
+  // Calls snake_case WASM method
   return AddressNamespace.to_output_script_with_coin(address, coin);
 }
 
@@ -71,6 +76,7 @@ export function fromOutputScriptWithCoin(
   coin: CoinName,
   format?: AddressFormat,
 ): string {
+  // Calls snake_case WASM method
   return AddressNamespace.from_output_script_with_coin(script, coin, format);
 }
 ```
@@ -85,5 +91,7 @@ export * as address from "./address";
 ### Benefits
 
 - **Type Safety**: Replace loose `any` and `string` types with precise union types
-- **Better DX**: IDE autocomplete works better with concrete types
+- **Idiomatic Naming**: Each layer uses its native convention (`snake_case` in Rust, `camelCase` in JavaScript)
+- **Better DX**: IDE autocomplete works better with concrete types and familiar naming
 - **Maintainability**: Centralized type definitions prevent duplication
+- **Clear Separation**: WASM bindings stay pure to Rust conventions, TypeScript handles JS conventions

packages/wasm-utxo/js/fixedScriptWallet.ts

@@ -57,17 +57,17 @@ type ReplayProtection =
 export type ScriptId = { chain: number; index: number };
 
 export type ParsedInput = {
-  address?: string;
+  address: string;
   script: Uint8Array;
   value: bigint;
-  scriptId: ScriptId | undefined;
+  scriptId: ScriptId | null;
 };
 
 export type ParsedOutput = {
-  address?: string;
+  address: string | null;
   script: Uint8Array;
   value: bigint;
-  scriptId?: ScriptId;
+  scriptId: ScriptId | null;
 };
 
 export type ParsedTransaction = {
@@ -90,7 +90,7 @@ export class BitGoPsbt {
    * @returns A BitGoPsbt instance
    */
   static fromBytes(bytes: Uint8Array, network: NetworkName): BitGoPsbt {
-    const wasm = WasmBitGoPsbt.fromBytes(bytes, network);
+    const wasm = WasmBitGoPsbt.from_bytes(bytes, network);
     return new BitGoPsbt(wasm);
   }
 
@@ -104,6 +104,21 @@ export class BitGoPsbt {
     walletKeys: WalletKeys,
     replayProtection: ReplayProtection,
   ): ParsedTransaction {
-    return this.wasm.parseTransactionWithWalletKeys(walletKeys, replayProtection);
+    return this.wasm.parse_transaction_with_wallet_keys(walletKeys, replayProtection);
+  }
+
+  /**
+   * Parse outputs with wallet keys to identify which outputs belong to a wallet
+   * with the given wallet keys.
+   *
+   * This is useful in cases where we want to identify outputs that belong to a different
+   * wallet than the inputs.
+   *
+   * @param walletKeys - The wallet keys to use for identification
+   * @returns Array of parsed outputs
+   * @note This method does NOT validate wallet inputs. It only parses outputs.
+   */
+  parseOutputsWithWalletKeys(walletKeys: WalletKeys): ParsedOutput[] {
+    return this.wasm.parse_outputs_with_wallet_keys(walletKeys);
   }
 }