merkle-tree-lib/dist/hash/factory.js

Merkle Tree implementation with BIP340 tagged hash support.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HashStrategyFactory = exports.HashStrategyType = void 0;
const Sha256Strategy_1 = require("./strategies/Sha256Strategy");
const TaggedSha256Strategy_1 = require("./strategies/TaggedSha256Strategy");
/**
 * HashStrategyType - Enumeration of available hash strategy types
 */
var HashStrategyType;
(function (HashStrategyType) {
    HashStrategyType["SHA256"] = "sha256";
    HashStrategyType["TAGGED_SHA256"] = "tagged-sha256";
})(HashStrategyType || (exports.HashStrategyType = HashStrategyType = {}));
/**
 * HashStrategyFactory - Factory for creating hash strategy instances
 */
class HashStrategyFactory {
    /**
     * Create a hash strategy of the specified type
     *
     * @param type - The type of strategy to create
     * @param options - Additional options (like tag for tagged hashing)
     * @returns A HashStrategy instance
     */
    static createStrategy(type, options) {
        switch (type) {
            case HashStrategyType.SHA256:
                return new Sha256Strategy_1.Sha256Strategy();
            case HashStrategyType.TAGGED_SHA256:
                // Use provided tag or default to "Bitcoin_Transaction"
                const tag = options?.tag || "Bitcoin_Transaction";
                return new TaggedSha256Strategy_1.TaggedSha256Strategy(tag);
            default:
                throw new Error(`Unsupported hash strategy type: ${type}`);
        }
    }
}
exports.HashStrategyFactory = HashStrategyFactory;