001/*
002 * SPDX-License-Identifier: Apache-2.0
003 *
004 * Copyright 2025-2026 The Enola <https://enola.dev> Authors
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 *     https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package dev.enola.cli;
019
020import io.ipfs.cid.Cid;
021
022import picocli.CommandLine;
023
024@CommandLine.Command(name = "cid", description = "Deconstructs a CID into its components")
025public class CidCommand implements Runnable {
026
027    @CommandLine.Spec CommandLine.Model.CommandSpec spec;
028
029    @CommandLine.Parameters(index = "0", paramLabel = "cid", description = "CID")
030    String cidString;
031
032    @Override
033    public void run() {
034        var cid = Cid.decode(cidString);
035        var pw = spec.commandLine().getOut();
036        pw.print("CID v" + cid.version + " - " + cid.codec.name());
037        if (cid.version > 0)
038            pw.print(" - " + MultihashCommand.toString(cidString, cid.bareMultihash()));
039        pw.println();
040    }
041}