/*
    * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
    * Copyright (C) 2009, Constantine Plotnikov <constantine.plotnikov@gmail.com>
    * Copyright (C) 2007, Dave Watson <dwatson@mimvista.com>
    * Copyright (C) 2008-2010, Google Inc.
    * Copyright (C) 2009, Google, Inc.
    * Copyright (C) 2009, JetBrains s.r.o.
    * Copyright (C) 2007-2008, Robin Rosenberg <robin.rosenberg@dewire.com>
    * Copyright (C) 2006-2008, Shawn O. Pearce <spearce@spearce.org>
   * Copyright (C) 2008, Thad Hughes <thadh@thad.corp.google.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.lib;
  
  import org.eclipse.jgit.util.StringUtils;
  
  /** A line in a Git {@link Config} file. */
  class ConfigLine {
  	/** The text content before entry. */
  	String prefix;
  
  	/** The section name for the entry. */
  	String section;
  
  	/** Subsection name. */
  	String subsection;
  
  	/** The key name. */
  	String name;
  
  	/** The value. */
  	String value;
  
  	/** The text content after entry. */
  	String suffix;
  
  	/** The source from which this line was included from. */
  	String includedFrom;
  
  	ConfigLine forValue(String newValue) {
  		final ConfigLine e = new ConfigLine();
  		e.prefix = prefix;
  		e.section = section;
  		e.subsection = subsection;
  		e.name = name;
  		e.value = newValue;
  		e.suffix = suffix;
  		e.includedFrom = includedFrom;
  		return e;
  	}
  
  	boolean match(final String aSection, final String aSubsection,
  			final String aKey) {
  		return eqIgnoreCase(section, aSection)
  				&& eqSameCase(subsection, aSubsection)
  				&& eqIgnoreCase(name, aKey);
  	}
  
  	boolean match(String aSection, String aSubsection) {
  		return eqIgnoreCase(section, aSection)
  				&& eqSameCase(subsection, aSubsection);
  	}
  
  	private static boolean eqIgnoreCase(String a, String b) {
  		if (a == null && b == null)
  			return true;
  		if (a == null || b == null)
  			return false;
  		return StringUtils.equalsIgnoreCase(a, b);
  	}
  
  	private static boolean eqSameCase(String a, String b) {
  		if (a == null && b == null)
  			return true;
  		if (a == null || b == null)
  			return false;
  		return a.equals(b);
  	}
  
  	/** {@inheritDoc} */
  	@SuppressWarnings("nls")
  	@Override
  	public String toString() {
  		if (section == null)
  			return "<empty>";
  		StringBuilder b = new StringBuilder(section);
  		if (subsection != null)
  			b.append(".").append(subsection);
  		if (name != null)
  			b.append(".").append(name);
  		if (value != null)
  			b.append("=").append(value);
  		return b.toString();
 	}
 }