Handle SDK errors and transaction status

import type { HexString } from "@nullark/sdk";

export type SubmissionState = "confirmed" | "reverted" | "submission-uncertain";

export async function reconcileSubmission(input: {
  transactionHash?: HexString;
  readReceipt: (transactionHash: HexString) => Promise<{ status: "success" | "reverted" } | null>;
  // Match the exact deposit commitment or withdrawal nullifier for this operation.
  effectObserved: () => Promise<boolean>;
}): Promise<SubmissionState> {
  if (input.transactionHash !== undefined && !/^0x[0-9a-fA-F]{64}$/.test(input.transactionHash)) {
    throw new Error("Transaction hash must be 32 bytes.");
  }

  let receiptStatus: "success" | "reverted" | undefined;
  if (input.transactionHash !== undefined) {
    try {
      receiptStatus = (await input.readReceipt(input.transactionHash))?.status;
    } catch {
      // The effect check below can still settle an unavailable receipt lookup.
    }
  }

  let effectReadSucceeded = false;
  try {
    effectReadSucceeded = true;
    if (await input.effectObserved()) return "confirmed";
  } catch {
    effectReadSucceeded = false;
    // Keep the result uncertain until either lookup becomes available.
  }

  if (receiptStatus === "reverted" && effectReadSucceeded) return "reverted";
  return "submission-uncertain";
}