1 files changed, 79 insertions, 0 deletions
diff --git a/impls/monero.ts/src/unsigned_transaction.ts b/impls/monero.ts/src/unsigned_transaction.ts
new file mode 100644
index 0000000..c5d8ed7
--- /dev/null
+++ b/impls/monero.ts/src/unsigned_transaction.ts
@@ -0,0 +1,79 @@
+import { fns } from "./bindings.ts";
+import { C_SEPARATOR, CString, maybeMultipleStrings, readCString } from "./utils.ts";
+
+export type UnsignedTransactionPtr = Deno.PointerObject<"pendingTransaction">;
+
+export class UnsignedTransaction<MultDest extends boolean = false> {
+  #ptr: UnsignedTransactionPtr;
+
+  #amount!: string | string[] | null;
+  #fee!: string | string[] | null;
+  #txCount!: bigint;
+  #paymentId!: string | null;
+  #recipientAddress!: string | string[] | null;
+
+  constructor(ptr: UnsignedTransactionPtr) {
+    this.#ptr = ptr;
+  }
+
+  async status(): Promise<number> {
+    return await fns.UnsignedTransaction_status(this.#ptr);
+  }
+
+  async errorString(): Promise<string | null> {
+    return await readCString(await fns.UnsignedTransaction_errorString(this.#ptr));
+  }
+
+  static async new(ptr: UnsignedTransactionPtr): Promise<UnsignedTransaction> {
+    const instance = new UnsignedTransaction(ptr);
+
+    const [amount, paymentId, fee, txCount, recipientAddress] = await Promise.all([
+      fns.UnsignedTransaction_amount(ptr, C_SEPARATOR).then(readCString),
+      fns.UnsignedTransaction_paymentId(ptr, C_SEPARATOR).then(readCString),
+      fns.UnsignedTransaction_fee(ptr, C_SEPARATOR).then(readCString),
+      fns.UnsignedTransaction_txCount(ptr),
+      fns.UnsignedTransaction_recipientAddress(ptr, C_SEPARATOR).then(readCString),
+    ]);
+
+    instance.#amount = maybeMultipleStrings(amount);
+    instance.#fee = maybeMultipleStrings(fee);
+    instance.#recipientAddress = maybeMultipleStrings(recipientAddress);
+    instance.#txCount = txCount;
+    instance.#paymentId = paymentId;
+
+    return instance;
+  }
+
+  get amount(): string | string[] | null {
+    return this.#amount;
+  }
+
+  get fee(): string | string[] | null {
+    return this.#fee;
+  }
+
+  get txCount(): bigint {
+    return this.#txCount;
+  }
+
+  get paymentId(): string | null {
+    return this.#paymentId;
+  }
+
+  get recipientAddress(): string | string[] | null {
+    return this.#recipientAddress;
+  }
+
+  async sign(signedFileName: string): Promise<boolean> {
+    return await fns.UnsignedTransaction_sign(this.#ptr, CString(signedFileName));
+  }
+
+  async signUR(maxFragmentLength: number): Promise<string | null> {
+    const signUR = fns.UnsignedTransaction_signUR;
+    if (!signUR) return null;
+
+    return await readCString(
+      await signUR(this.#ptr, maxFragmentLength),
+    );
+  }
+}