/*******************************************************************************
 * Copyright (c) 2003, 2005 IBM 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:
 * IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.common.componentcore.internal.operation;

import java.util.List;
import java.util.Set;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.datamodel.properties.IComponentCreationDataModelProperties;
import org.eclipse.wst.common.componentcore.datamodel.properties.IFlexibleProjectCreationDataModelProperties;
import org.eclipse.wst.common.frameworks.datamodel.AbstractDataModelProvider;
import org.eclipse.wst.common.frameworks.datamodel.DataModelEvent;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.frameworks.internal.plugin.WTPCommonMessages;
import org.eclipse.wst.common.frameworks.internal.plugin.WTPCommonPlugin;

/**
 * This dataModel is a common super class used for creation of WTP Components.
 * 
 * This class (and all its fields and methods) is likely to change during the WTP 1.0 milestones as
 * the new project structures are adopted. Use at your own risk.
 * 
 * @plannedfor WTP 1.0
 */
public abstract class ComponentCreationDataModelProvider extends AbstractDataModelProvider implements IComponentCreationDataModelProperties {

	// protected boolean isProjMultiComponents = false;

	public void init() {
		super.init();
		// isProjMultiComponents =
		// FlexibleJavaProjectPreferenceUtil.getMultipleModulesPerProjectProp();
		// model.getBooleanProperty(SUPPORT_MULTIPLE_MODULES) =
		// model.getBooleanProperty(SUPPORT_MULTIPLE_MODULES);
		initProjectCreationModel();
	}

	public Set getPropertyNames() {
		Set propertyNames = super.getPropertyNames();
		propertyNames.add(PROJECT_NAME);
		propertyNames.add(NESTED_PROJECT_CREATION_DM);
		propertyNames.add(COMPONENT_NAME);
		propertyNames.add(COMPONENT_NAME);
		propertyNames.add(LOCATION);
		propertyNames.add(COMPONENT_DEPLOY_NAME);
		propertyNames.add(CREATE_DEFAULT_FILES);
		propertyNames.add(COMPONENT);
		return propertyNames;
	}

	public void propertyChanged(DataModelEvent event) {
		if (event.getFlag() == DataModelEvent.VALUE_CHG) {
			event.getDataModel();
		}
	}

	public boolean propertySet(String propertyName, Object propertyValue) {
		if (COMPONENT_NAME.equals(propertyName)) {
			model.setProperty(COMPONENT_DEPLOY_NAME, propertyValue);
			model.setProperty(PROJECT_NAME, propertyValue);
		} else if (COMPONENT_DEPLOY_NAME.equals(propertyName)) {
			model.setProperty(COMPONENT_DEPLOY_NAME, propertyValue);
		} else if (COMPONENT.equals(propertyName)) {
			throw new RuntimeException(propertyName + " should not be set.");
		} else if (PROJECT_NAME.equals(propertyName)) {
			// if(!FlexibleJavaProjectPreferenceUtil.getMultipleModulesPerProjectProp()){
			// model.notifyPropertyChange(PROJECT_NAME, IDataModel.VALUE_CHG);
			// set the property in nested FlexibleJavaProjectCreationDataModelProvider
			IDataModel dm = model.getNestedModel(NESTED_PROJECT_CREATION_DM);
			dm.setProperty(IFlexibleProjectCreationDataModelProperties.PROJECT_NAME, propertyValue);
			return true;
			// }
		}
		return true;
	}

	public Object getDefaultProperty(String propertyName) {
		if (propertyName.equals(CREATE_DEFAULT_FILES)) {
			return Boolean.TRUE;
		} else if (propertyName.equals(COMPONENT)) {
			String projectName = getStringProperty(PROJECT_NAME);
			IProject project = ProjectUtilities.getProject(projectName);
			return ComponentCore.createComponent(project);
		}
		return super.getDefaultProperty(propertyName);
	}

	public IStatus validate(String propertyName) {
		if (propertyName.equals(COMPONENT_NAME)) {
			IStatus status = OK_STATUS;
			String moduleName = model.getStringProperty(COMPONENT_NAME);
			if (status.isOK()) {
				if (moduleName.indexOf("#") != -1 || moduleName.indexOf("/") != -1) { //$NON-NLS-1$
					String errorMessage = WTPCommonPlugin.getResourceString(WTPCommonMessages.ERR_INVALID_CHARS); //$NON-NLS-1$
					return WTPCommonPlugin.createErrorStatus(errorMessage);
				} else if (moduleName == null || moduleName.equals("")) { //$NON-NLS-1$
					String errorMessage = WTPCommonPlugin.getResourceString(WTPCommonMessages.ERR_EMPTY_MODULE_NAME);
					return WTPCommonPlugin.createErrorStatus(errorMessage);
				} else
					return OK_STATUS;
			} else
				return status;
		} else if (propertyName.equals(PROJECT_NAME)) {
			IStatus status = OK_STATUS;

				String projectName = model.getStringProperty(PROJECT_NAME);
				if (projectName == null || projectName.length() == 0) {
					String errorMessage = WTPCommonPlugin.getResourceString(WTPCommonMessages.PROJECT_NAME_EMPTY);
					status = WTPCommonPlugin.createErrorStatus(errorMessage);
				}
				if (status.isOK()) {
					status = validateProjectName(projectName);
					if (status.isOK()) {
						IProject proj = ProjectUtilities.getProject(projectName);
						if (proj.exists()) {
							String errorMessage = WTPCommonPlugin.getResourceString(WTPCommonMessages.PROJECT_EXISTS_ERROR);
							status = WTPCommonPlugin.createErrorStatus(errorMessage);
						}
					}					
				}

			return status;
		} else if (propertyName.equals(COMPONENT_DEPLOY_NAME)) {
			return OK_STATUS;
		} else if (propertyName.equals(CREATE_DEFAULT_FILES)) {
			return OK_STATUS;
		}
		return OK_STATUS;
	}

	protected IStatus validateProjectName(String projectName) {
		IWorkspace workspace = ResourcesPlugin.getWorkspace();
		IStatus status = workspace.validateName(projectName, IResource.PROJECT);
		if (!status.isOK())
			return status;

		if (ProjectUtilities.getProject(projectName).exists())
			return WTPCommonPlugin.createErrorStatus(WTPCommonPlugin.getResourceString(WTPCommonMessages.PROJECT_EXISTS_ERROR, new Object[]{projectName}));

		if (projectName.indexOf("#") != -1) { //$NON-NLS-1$
			// String errorMessage = J2EECreationResourceHandler.getString("InvalidCharsError");
			// //$NON-NLS-1$
			String errorMessage = "InvalidCharsError"; //$NON-NLS-1$
			return WTPCommonPlugin.createErrorStatus(errorMessage);
		}
		return OK_STATUS;
	}

	// protected static String[] getServerVersions(String moduleID, IRuntimeType type) {
	// List list = new ArrayList();
	// if (type == null)
	// return null;
	// IModuleType[] moduleTypes = type.getModuleTypes();
	// if (moduleTypes != null) {
	// int size = moduleTypes.length;
	// for (int i = 0; i < size; i++) {
	// IModuleType moduleType = moduleTypes[i];
	// if (matches(moduleType.getId(), moduleID)) {
	// list.add(moduleType.getVersion());
	// }
	//
	// }
	// }
	// String[] versions = null;
	// if (!list.isEmpty()) {
	// versions = new String[list.size()];
	// list.toArray(versions);
	// }
	// return versions;
	// }

//	protected static boolean matches(String serverTypeID, String j2eeModuleID) {
//
//		if (serverTypeID.equals("j2ee")) {
//			if (j2eeModuleID.equals(IModuleConstants.JST_WEB_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_EJB_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_EAR_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_APPCLIENT_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_CONNECTOR_MODULE)) {
//				return true;
//			}
//		} else if (serverTypeID.equals("j2ee.*")) {
//			if (j2eeModuleID.equals(IModuleConstants.JST_WEB_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_EJB_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_EAR_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_APPCLIENT_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_CONNECTOR_MODULE)) {
//				return true;
//			}
//		} else if (serverTypeID.equals("j2ee.web")) {//$NON-NLS-1$
//			if (j2eeModuleID.equals(IModuleConstants.JST_WEB_MODULE)) {
//				return true;
//			}
//		} else if (serverTypeID.equals("j2ee.ejb")) {//$NON-NLS-1$
//			if (j2eeModuleID.equals(IModuleConstants.JST_EJB_MODULE)) {
//				return true;
//			}
//		} else if (serverTypeID.equals("j2ee.ear")) {//$NON-NLS-1$
//			if (j2eeModuleID.equals(IModuleConstants.JST_EAR_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_APPCLIENT_MODULE) || j2eeModuleID.equals(IModuleConstants.JST_CONNECTOR_MODULE)) {
//				return true;
//			}
//		}
//		return false;
//	}

	// private static boolean matches(String a, String b) {
	// if (a == null || b == null || "*".equals(a) || "*".equals(b) || a.startsWith(b) ||
	// b.startsWith(a)) //$NON-NLS-1$ //$NON-NLS-2$
	// return true;
	// return false;
	// }


	protected String getComponentName() {
		return model.getStringProperty(COMPONENT_NAME);
	}

	protected String getComponentDeployName() {
		return model.getStringProperty(COMPONENT_DEPLOY_NAME);
	}

	protected abstract void initProjectCreationModel();

	protected abstract EClass getComponentType();

	protected abstract String getComponentExtension();

	protected abstract List getProperties();

	protected abstract Integer getDefaultComponentVersion();
}