/*
    * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com> and others
    *
    * This program and the accompanying materials are made available under the
    * terms of the Eclipse Distribution License v. 1.0 which is available at
    * https://www.eclipse.org/org/documents/edl-v10.php.
    *
    * SPDX-License-Identifier: BSD-3-Clause
    */
  package org.eclipse.jgit.pgm;
  
  import java.io.IOException;
  import java.io.StringWriter;
  import java.text.MessageFormat;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.eclipse.jgit.api.Git;
  import org.eclipse.jgit.api.RemoteAddCommand;
  import org.eclipse.jgit.api.RemoteListCommand;
  import org.eclipse.jgit.api.RemoteRemoveCommand;
  import org.eclipse.jgit.api.RemoteSetUrlCommand;
  import org.eclipse.jgit.api.RemoteSetUrlCommand.UriType;
  import org.eclipse.jgit.api.errors.JGitInternalException;
  import org.eclipse.jgit.pgm.internal.CLIText;
  import org.eclipse.jgit.pgm.opt.CmdLineParser;
  import org.eclipse.jgit.transport.RemoteConfig;
  import org.eclipse.jgit.transport.URIish;
  import org.eclipse.jgit.util.io.ThrowingPrintWriter;
  import org.kohsuke.args4j.Argument;
  import org.kohsuke.args4j.Option;
  
  @Command(common = false, usage = "usage_Remote")
  class Remote extends TextBuiltin {
  
  	@Option(name = "--verbose", aliases = { "-v" }, usage = "usage_beVerbose")
  	private boolean verbose = false;
  
  	@Option(name = "--prune", aliases = {
  			"-p" }, usage = "usage_pruneStaleTrackingRefs")
  	private boolean prune;
  
  	@Option(name = "--push", usage = "usage_pushUrls")
  	private boolean push;
  
  	@Argument(index = 0, metaVar = "metaVar_command")
  	private String command;
  
  	@Argument(index = 1, metaVar = "metaVar_remoteName")
  	private String name;
  
  	@Argument(index = 2, metaVar = "metaVar_uriish")
  	private String uri;
  
  	/** {@inheritDoc} */
  	@Override
  	protected void run() {
  		try (Git git = new Git(db)) {
  			if (command == null) {
  				RemoteListCommand cmd = git.remoteList();
  				List<RemoteConfig> remotes = cmd.call();
  				print(remotes);
  				return;
  			}
  			switch (command) {
  			case "add": //$NON-NLS-1$
  				RemoteAddCommand add = git.remoteAdd();
  				add.setName(name);
  				add.setUri(new URIish(uri));
  				add.call();
  				break;
  			case "remove": //$NON-NLS-1$
  			case "rm": //$NON-NLS-1$
  				RemoteRemoveCommand rm = git.remoteRemove();
  				rm.setRemoteName(name);
  				rm.call();
  				break;
  			case "set-url": //$NON-NLS-1$
  				RemoteSetUrlCommand remoteSetUrl = git.remoteSetUrl();
  				remoteSetUrl.setRemoteName(name);
  				remoteSetUrl.setRemoteUri(new URIish(uri));
  				remoteSetUrl.setUriType(push ? UriType.PUSH : UriType.FETCH);
  				remoteSetUrl.call();
  				break;
  			case "update": //$NON-NLS-1$
  				Fetch fetch = new Fetch();
  				fetch.init(db, gitdir);
  				StringWriter osw = new StringWriter();
  				fetch.outw = new ThrowingPrintWriter(osw);
  				StringWriter esw = new StringWriter();
  				fetch.errw = new ThrowingPrintWriter(esw);
  				List<String> fetchArgs = new ArrayList<>();
  				if (verbose) {
  					fetchArgs.add("--verbose"); //$NON-NLS-1$
  				}
  				if (prune) {
  					fetchArgs.add("--prune"); //$NON-NLS-1$
  				}
  				if (name != null) {
 					fetchArgs.add(name);
 				}
 				fetch.execute(fetchArgs.toArray(new String[0]));
 				fetch.outw.flush();
 				fetch.errw.flush();
 				outw.println(osw.toString());
 				errw.println(esw.toString());
 				break;
 			default:
 				throw new JGitInternalException(MessageFormat
 						.format(CLIText.get().unknownSubcommand, command));
 			}
 		} catch (Exception e) {
 			throw die(e.getMessage(), e);
 		}
 	}
 
 	/** {@inheritDoc} */
 	@Override
 	public void printUsage(String message, CmdLineParser clp)
 			throws IOException {
 		errw.println(message);
 		errw.println("jgit remote [--verbose (-v)] [--help (-h)]"); //$NON-NLS-1$
 		errw.println("jgit remote add name uri-ish [--help (-h)]"); //$NON-NLS-1$
 		errw.println("jgit remote remove name [--help (-h)]"); //$NON-NLS-1$
 		errw.println("jgit remote rm name [--help (-h)]"); //$NON-NLS-1$
 		errw.println(
 				"jgit remote [--verbose (-v)] update [name] [--prune (-p)] [--help (-h)]"); //$NON-NLS-1$
 		errw.println("jgit remote set-url name uri-ish [--push] [--help (-h)]"); //$NON-NLS-1$
 
 		errw.println();
 		clp.printUsage(errw, getResourceBundle());
 		errw.println();
 
 		errw.flush();
 	}
 
 	private void print(List<RemoteConfig> remotes) throws IOException {
 		for (RemoteConfig remote : remotes) {
 			String remoteName = remote.getName();
 			if (verbose) {
 				List<URIish> fetchURIs = remote.getURIs();
 				List<URIish> pushURIs = remote.getPushURIs();
 
 				String fetchURI = ""; //$NON-NLS-1$
 				if (!fetchURIs.isEmpty()) {
 					fetchURI = fetchURIs.get(0).toString();
 				} else if (!pushURIs.isEmpty()) {
 					fetchURI = pushURIs.get(0).toString();
 				}
 
 				String pushURI = ""; //$NON-NLS-1$
 				if (!pushURIs.isEmpty()) {
 					pushURI = pushURIs.get(0).toString();
 				} else if (!fetchURIs.isEmpty()) {
 					pushURI = fetchURIs.get(0).toString();
 				}
 
 				outw.println(
 						String.format("%s\t%s (fetch)", remoteName, fetchURI)); //$NON-NLS-1$
 				outw.println(
 						String.format("%s\t%s (push)", remoteName, pushURI)); //$NON-NLS-1$
 			} else {
 				outw.println(remoteName);
 			}
 		}
 	}
 
 }