@kyve/core-beta/dist/src/methods/validate/saveLoadValidationBundle.js

🚀 The base KYVE node implementation.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.saveLoadValidationBundle = void 0;
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const utils_1 = require("../../utils");
/**
 * saveLoadValidationBundle loads the bundle from the local
 * cache for validation with the proposed bundle. If there is
 * an error loading the bundle from cache the node instantly votes
 * with abstain and continues to try to load the bundle
 *
 * @method saveLoadValidationBundle
 * @param {Node} this
 * @param {number} updatedAt
 * @return {Promise<DataItem[] | null>}
 */
async function saveLoadValidationBundle(updatedAt) {
    return await (0, utils_1.callWithBackoffStrategy)(async () => {
        await this.syncPoolState();
        const unixNow = new bignumber_js_1.default(Date.now());
        const unixIntervalEnd = new bignumber_js_1.default(this.pool.bundle_proposal.updated_at)
            .plus(this.pool.data.upload_interval)
            .multipliedBy(1000);
        // check if new proposal is available in the meantime
        if (parseInt(this.pool.bundle_proposal.updated_at) > updatedAt) {
            return null;
        }
        // check if pool got inactive in the meantime
        if (this.validateIsPoolActive()) {
            return null;
        }
        // check if validator needs to upload
        if (this.pool.bundle_proposal.next_uploader === this.staker &&
            unixNow.gte(unixIntervalEnd)) {
            return null;
        }
        // load bundle from current pool current index to proposed index
        const proposalStartIndex = parseInt(this.pool.data.current_index);
        const proposalTargetIndex = proposalStartIndex + parseInt(this.pool.bundle_proposal.bundle_size);
        // attempt to load bundle from cache
        const bundle = [];
        // in order to get the same bundle for validation as the one
        // proposed the bundle is loaded with the proposed heights
        this.logger.debug(`Loading bundle from index ${proposalStartIndex} to index ${proposalTargetIndex}`);
        for (let i = proposalStartIndex; i < proposalTargetIndex; i++) {
            try {
                // try to get the data item from local cache
                this.logger.debug(`this.cacheProvider.get(${i.toString()})`);
                const item = await this.cacheProvider.get(i.toString());
                bundle.push(item);
            }
            catch {
                // if a request data item can not be found abort and
                // try again after a backoff time
                throw new Error(`Requested bundle could not be loaded from cache yet.`);
            }
        }
        this.logger.info(`Successfully loaded validation bundle from CacheProvider:${this.cacheProvider.name}`);
        return (0, utils_1.standardizeJSON)(bundle);
    }, { limitTimeoutMs: 5 * 60 * 1000, increaseByMs: 10 * 1000 }, async (err, ctx) => {
        var _a;
        this.logger.info(`Loading validation bundle from CacheProvider:${this.cacheProvider.name} was unsuccessful. Retrying in ${(ctx.nextTimeoutInMs / 1000).toFixed(2)}s ...`);
        this.logger.debug((0, utils_1.standardizeJSON)(err));
        // vote abstain if validation bundle could not be loaded from cache.
        // With voting abstain the network knows that the node
        // is still online but just could not vote
        if (!((_a = this.pool.bundle_proposal) === null || _a === void 0 ? void 0 : _a.voters_abstain.includes(this.staker))) {
            await this.voteBundleProposal(this.pool.bundle_proposal.storage_id, utils_1.VOTE.ABSTAIN);
        }
    });
}
exports.saveLoadValidationBundle = saveLoadValidationBundle;