/*******************************************************************************
 * Copyright (c) 2004, 2007 Intel Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Intel Corporation - Initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.managedbuilder.core;

import org.eclipse.cdt.managedbuilder.buildproperties.IBuildPropertyValue;
import org.eclipse.cdt.managedbuilder.envvar.IProjectEnvironmentVariableSupplier;
import org.eclipse.cdt.managedbuilder.macros.IProjectBuildMacroSupplier;

/**
 * This class represents project-types in the managed build system.
 * A project-type is a tool-integrator defined class of project which 
 * acts as a template for the projects that a user will create.  
 * The project-type contains one or more children of type configuration.
 * These are the default configurations that the user can choose from.
 * Note that there is no reason to define a project-type element in a 
 * .cdtbuild file.  It would never be used since project-type elements 
 * are used to primarily populate the "New Project" dialog boxes.
 * Project types can be arranged into hierarchies to promote the efficient
 * sharing of configurations. If you have defined a project type that 
 * should not be selected by the user, but is a root for other project 
 * types, it may be declared abstract by setting the isAbstract attribute
 * to 'true'. Abstract project types do not appear in the UI. You must 
 * provide a unique identifier for the project type in the id attribute. 
 * Children of the abstract project type will have the same configurations
 * that the abstract project type has, unless they are explicitly named
 * in the unusedChildren attribute of the child project. For these 
 * children to function properly, their superClass attribute must contain 
 * the unique identifier of the super class project type.
 * A concrete project type must have at least one configuration defined 
 * for it. A project type must also define (or inherit) a set of tool-chain
 * definitions that work together to produce the build goal as an output.
 * You must also provide a meaningful name that will be displayed to the 
 * user in the UI and New Project wizards.
 * 
 * @since 2.1
 */
public interface IProjectType extends IBuildObject, IBuildObjectPropertiesContainer {
	public static final String PROJECTTYPE_ELEMENT_NAME = "projectType";	//$NON-NLS-1$
	public static final String SUPERCLASS = "superClass";					//$NON-NLS-1$
	public static final String IS_ABSTRACT = "isAbstract";					//$NON-NLS-1$
	public static final String UNUSED_CHILDREN = "unusedChildren";			//$NON-NLS-1$
	public static final String IS_TEST = "isTest";							//$NON-NLS-1$
	public static final String CONVERT_TO_ID = "convertToId";			//$NON-NLS-1$
	public static final String CONFIGURATION_NAME_PROVIDER = "configurationNameProvider";  //$NON-NLS-1$
	public static final String PROJECT_ENVIRONMENT_SUPPLIER = "projectEnvironmentSupplier";			//$NON-NLS-1$
	public static final String PROJECT_MACRO_SUPPLIER = "projectMacroSupplier";			//$NON-NLS-1$
	public static final String BUILD_PROPERTIES = "buildProperties"; //$NON-NLS-1$
	public static final String BUILD_ARTEFACT_TYPE = "buildArtefactType"; //$NON-NLS-1$

	
	/**
	 * Creates a configuration for this project-type populated with the tools
	 * and options settings from the parent configuration.  As options and 
	 * tools change in the parent, unoverridden values are updated in the 
	 * child configuration as well.
	 * <p>
	 * NOTE: This routine affects the in-memory representation of the
	 *       project-type, but since project-types are never written to the
	 *       .cdtbuild file, the manifest definition does not change. 
	 * 
	 * @param parent The <code>IConfiguration</code> to use as a settings template
	 * @param id The unique id the new configuration will have
	 * @param name The name the new configuration will have
	 * @return IConfiguration of the new configuration
	 */
	public IConfiguration createConfiguration(IConfiguration parent, String id, String name);

	/**
	 * Removes the configuration with the ID specified in the argument.
	 * <p>
	 * NOTE: This routine affects the in-memory representation of the
	 *       project-type, but since project-types are never written to the
	 *       .cdtbuild file, the manifest definition does not change. 
	 * 
	 * @param id The unique id of the configuration
	 */
	public void removeConfiguration(String id);

	/**
	 * Returns all of the configurations defined by this project-type.
	 * 
	 * @return IConfiguration[]
	 */
	public IConfiguration[] getConfigurations();

	/**
	 * Returns the configuration with the given id, or <code>null</code> if not found.
	 * 
	 * @param id The unique id of the configuration
	 * @return IConfiguration
	 */
	public IConfiguration getConfiguration(String id);

	/**
	 * Returns the <code>IProjectType</code> that is the superclass of this
	 * project-type, or <code>null</code> if the attribute was not specified.
	 * 
	 * @return IProjectType
	 */
	public IProjectType getSuperClass();
	
	/**
	 * Returns whether this element is abstract.  Returns <code>false</code>
	 * if the attribute was not specified.
	 * @return boolean 
	 */
	public boolean isAbstract();

	/**
	 * Sets the isAbstract attribute of the tool-chain. 
	 * 
	 * @param b
	 */
	public void setIsAbstract(boolean b);
	
	/**
	 * Returns a semi-colon delimited list of child Ids of the superclass'
	 * children that should not be automatically inherited by this element.
	 * Returns an empty string if the attribute was not specified. 
	 * @return String 
	 */
	public String getUnusedChildren();
	
	/**
	 * Returns <code>true</code> if the project-type is defined 
	 * for testing purposes only, else <code>false</code>. A test project-type will 
	 * not be shown in the UI but can still be manipulated programmatically.
	 * Returns <code>false</code> if the attribute was not specified.
	 * 
	 * @return boolean
	 */
	public boolean isTestProjectType();

	/**
	 * Returns <code>true</code> if at least one project-type contiguration is supported on the system
	 * otherwise returns <code>false</code>
	 * 
	 * @return boolean 
	 */	
	public boolean isSupported();
	
	/**
	 * Returns the configurationNameProvider. 
	 *  
	 * @return IConfigurationNameProvider
	 */
	public IConfigurationNameProvider getConfigurationNameProvider();
	
	/**
	 * Returns the tool-integrator provided implementation of the project environment variable supplier
	 * or <code>null</code> if none. 
	 *  
	 * @return IProjectEnvironmentVariableSupplier
	 */
	public IProjectEnvironmentVariableSupplier getEnvironmentVariableSupplier();

	/**
	 * Returns the tool-integrator provided implementation of the project build macro supplier
	 * or <code>null</code> if none. 
	 *  
	 * @return IProjectBuildMacroSupplier
	 */
	public IProjectBuildMacroSupplier getBuildMacroSupplier();
	
	/**
	 * Returns the 'convertToId' of this project type.
	 * 
	 * @return String
	 */

	public String getConvertToId();
	
	/**
	 * Sets the 'convertToId' attribute of the project type. 
	 * 
	 * @param convertToId
	 */
	public void setConvertToId(String convertToId);
	
	/**
	 *  check for migration support.
	 *  @return boolean
	 */
	
	public boolean checkForMigrationSupport();
	
	public String getNameAttribute();
	
	public IBuildPropertyValue getBuildArtefactType();
	
	boolean isSystemObject();
}
