/*
    * Copyright (C) 2017, 2022 David Pursehouse <david.pursehouse@gmail.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.transport;
  
  import java.util.Locale;
  
  import org.eclipse.jgit.lib.Config;
  import org.eclipse.jgit.lib.ConfigConstants;
  import org.eclipse.jgit.util.StringUtils;
  
  /**
   * Push section of a Git configuration file.
   *
   * @since 4.9
   */
  public class PushConfig {
  
  	/**
  	 * Git config values for {@code push.recurseSubmodules}.
  	 */
  	public enum PushRecurseSubmodulesMode implements Config.ConfigEnum {
  		/**
  		 * Verify that all submodule commits that changed in the revisions to be
  		 * pushed are available on at least one remote of the submodule.
  		 */
  		CHECK("check"), //$NON-NLS-1$
  
  		/**
  		 * All submodules that changed in the revisions to be pushed will be
  		 * pushed.
  		 */
  		ON_DEMAND("on-demand"), //$NON-NLS-1$
  
  		/** Default behavior of ignoring submodules when pushing is retained. */
  		NO("false"); //$NON-NLS-1$
  
  		private final String configValue;
  
  		private PushRecurseSubmodulesMode(String configValue) {
  			this.configValue = configValue;
  		}
  
  		@Override
  		public String toConfigValue() {
  			return configValue;
  		}
  
  		@Override
  		public boolean matchConfigValue(String s) {
  			if (StringUtils.isEmptyOrNull(s)) {
  				return false;
  			}
  			s = s.replace('-', '_');
  			return name().equalsIgnoreCase(s)
  					|| configValue.equalsIgnoreCase(s);
  		}
  	}
  
  	/**
  	 * Git config values for {@code push.default}.
  	 *
  	 * @since 6.1
  	 */
  	public enum PushDefault implements Config.ConfigEnum {
  
  		/**
  		 * Do not push if there are no explicit refspecs.
  		 */
  		NOTHING,
  
  		/**
  		 * Push the current branch to an upstream branch of the same name.
  		 */
  		CURRENT,
  
  		/**
  		 * Push the current branch to an upstream branch determined by git
  		 * config {@code branch.<currentBranch>.merge}.
  		 */
  		UPSTREAM("tracking"), //$NON-NLS-1$
  
  		/**
  		 * Like {@link #UPSTREAM}, but only if the upstream name is the same as
  		 * the name of the current local branch.
  		 */
  		SIMPLE,
  
  		/**
  		 * Push all current local branches that match a configured push refspec
  		 * of the remote configuration.
  		 */
 		MATCHING;
 
 		private final String alias;
 
 		private PushDefault() {
 			alias = null;
 		}
 
 		private PushDefault(String alias) {
 			this.alias = alias;
 		}
 
 		@Override
 		public String toConfigValue() {
 			return name().toLowerCase(Locale.ROOT);
 		}
 
 		@Override
 		public boolean matchConfigValue(String in) {
 			return toConfigValue().equalsIgnoreCase(in)
 					|| (alias != null && alias.equalsIgnoreCase(in));
 		}
 	}
 
 	private final PushRecurseSubmodulesMode recurseSubmodules;
 
 	private final PushDefault pushDefault;
 
 	/**
 	 * Creates a new instance.
 	 *
 	 * @param config
 	 *            {@link Config} to fill the {@link PushConfig} from
 	 * @since 6.1
 	 */
 	public PushConfig(Config config) {
 		recurseSubmodules = config.getEnum(ConfigConstants.CONFIG_PUSH_SECTION,
 				null, ConfigConstants.CONFIG_KEY_RECURSE_SUBMODULES,
 				PushRecurseSubmodulesMode.NO);
 		pushDefault = config.getEnum(ConfigConstants.CONFIG_PUSH_SECTION, null,
 				ConfigConstants.CONFIG_KEY_DEFAULT, PushDefault.SIMPLE);
 	}
 
 	/**
 	 * Retrieves the value of git config {@code push.recurseSubmodules}.
 	 *
 	 * @return the value
 	 * @since 6.1
 	 */
 	public PushRecurseSubmodulesMode getRecurseSubmodules() {
 		return recurseSubmodules;
 	}
 
 	/**
 	 * Retrieves the value of git config {@code push.default}.
 	 *
 	 * @return the value
 	 * @since 6.1
 	 */
 	public PushDefault getPushDefault() {
 		return pushDefault;
 	}
 }