@exromany/lido-csm-sdk/dist/cjs/frame-sdk/utils.js

[](https://github.com/lidofinance/lido-csm-sdk/blob/main/LICENSE.txt) [](h

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.slotToApproximateBlockNumber = exports.getFrameDuration = exports.getSlotsPerFrame = exports.epochToTimestamp = exports.epochToSlot = exports.slotToEpoch = exports.timestampToSlot = exports.slotToTimestamp = exports.ESTIMATED_BLOCK_GAP = void 0;
exports.ESTIMATED_BLOCK_GAP = 10000n;
const slotToTimestamp = (slot, { secondsPerSlot, genesisTime, }) => {
    return Number(BigInt(slot) * secondsPerSlot + genesisTime);
};
exports.slotToTimestamp = slotToTimestamp;
const timestampToSlot = (timestamp, { genesisTime, secondsPerSlot, }) => {
    return (BigInt(timestamp) - genesisTime) / secondsPerSlot;
};
exports.timestampToSlot = timestampToSlot;
const slotToEpoch = (slot, { slotsPerEpoch }) => {
    return BigInt(slot) / slotsPerEpoch;
};
exports.slotToEpoch = slotToEpoch;
const epochToSlot = (epoch, { slotsPerEpoch }) => {
    return BigInt(epoch) * slotsPerEpoch;
};
exports.epochToSlot = epochToSlot;
const epochToTimestamp = (epoch, config) => {
    const slot = (0, exports.epochToSlot)(epoch, config);
    return (0, exports.slotToTimestamp)(slot, config);
};
exports.epochToTimestamp = epochToTimestamp;
const getSlotsPerFrame = ({ epochsPerFrame, slotsPerEpoch, }) => {
    return epochsPerFrame * slotsPerEpoch;
};
exports.getSlotsPerFrame = getSlotsPerFrame;
const getFrameDuration = ({ epochsPerFrame, slotsPerEpoch, secondsPerSlot, }) => {
    return Number(epochsPerFrame * slotsPerEpoch * secondsPerSlot);
};
exports.getFrameDuration = getFrameDuration;
const slotToApproximateBlockNumber = (slot, config, currentBlock) => {
    const targetTimestamp = (0, exports.slotToTimestamp)(slot, config);
    const timeDiff = currentBlock.timestamp - BigInt(targetTimestamp);
    const blockOffset = timeDiff / config.secondsPerSlot;
    return currentBlock.number - blockOffset;
};
exports.slotToApproximateBlockNumber = slotToApproximateBlockNumber;
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