@ledgerhq/coin-stellar/lib/logic/getBlockInfo.js

Ledger Stellar Coin integration

"use strict";
// SPDX-FileCopyrightText: © 2026 LEDGER SAS
// SPDX-License-Identifier: Apache-2.0
Object.defineProperty(exports, "__esModule", { value: true });
exports.getBlockInfo = getBlockInfo;
const network_1 = require("../network");
/**
 * Returns lightweight metadata for a Stellar closed ledger at the given sequence.
 *
 * Fetches the ledger once. When `height > 1` and Horizon provides `prev_hash`,
 * `BlockInfo.parent` is derived without a second request; otherwise the parent
 * ledger is loaded explicitly. Genesis ledger sequence 1 has no parent.
 */
async function getBlockInfo(height) {
    if (!Number.isSafeInteger(height) || height <= 0) {
        throw new Error(`getBlockInfo: height must be a positive integer, got ${height}`);
    }
    const ledger = await (0, network_1.fetchLedgerRecord)(height);
    const info = {
        height: ledger.sequence,
        hash: ledger.hash,
        time: new Date(ledger.closed_at),
    };
    let parent;
    if (height > 1) {
        const prevHash = ledger.prev_hash;
        if (prevHash) {
            parent = { height: height - 1, hash: prevHash };
        }
        else {
            const parentLedger = await (0, network_1.fetchLedgerRecord)(height - 1);
            parent = { height: parentLedger.sequence, hash: parentLedger.hash };
        }
        info.parent = parent;
    }
    return info;
}
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