/*******************************************************************************
 * Copyright (c) 2005-2008 Polarion Software.
 * 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:
 *    Alexander Gurov - Initial API and implementation
 *******************************************************************************/

package org.eclipse.team.svn.ui.utility;

import org.eclipse.team.svn.ui.SVNTeamUIPlugin;

/**
 * This storage allow us to handle comment, user name etc. histories in one way
 * 
 * @author Alexander Gurov
 */
public class InputHistory {
	public static final int TYPE_BOOLEAN = 0;
	public static final int TYPE_DOUBLE = 1;
	public static final int TYPE_FLOAT = 2;
	public static final int TYPE_INT = 3;
	public static final int TYPE_LONG = 4;
	public static final int TYPE_STRING = 5;
    
    protected static final String HISTORY_NAME_BASE = "history."; //$NON-NLS-1$
    
    protected String name;
    protected int type;
    protected Object value;

    public InputHistory(String name, int type, Object defaultValue) {
        this.name = name;
        this.type = type;
        
        this.loadHistoryValue(defaultValue);
    }
    
    public String getName() {
        return this.name;
    }
    
    public Object getValue() {
        return this.value;
    }
    
    public void clear() {
    	this.value = null;
        this.saveHistoryValue();
    }

    public void setValue(Object value) {
    	this.value = value;
        this.saveHistoryValue();
    }

    protected void loadHistoryValue(Object defaultValue) {
    	String fullName = UserInputHistory.HISTORY_NAME_BASE + this.name;
    	switch (this.type) {
    		case InputHistory.TYPE_BOOLEAN: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? false : ((Boolean)defaultValue).booleanValue());
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getBoolean(fullName);
    			break;
    		}
    		case InputHistory.TYPE_DOUBLE: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? 0 : ((Double)defaultValue).doubleValue());
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getDouble(fullName);
    			break;
    		}
    		case InputHistory.TYPE_FLOAT: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? 0 : ((Float)defaultValue).floatValue());
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getFloat(fullName);
    			break;
    		}
    		case InputHistory.TYPE_INT: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? 0 : ((Integer)defaultValue).intValue());
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getInt(fullName);
    			break;
    		}
    		case InputHistory.TYPE_LONG: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? 0 : ((Long)defaultValue).longValue());
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getLong(fullName);
    			break;
    		}
    		default: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setDefault(fullName, defaultValue == null ? "" : (String)defaultValue); //$NON-NLS-1$
    			this.value = SVNTeamUIPlugin.instance().getPreferenceStore().getString(fullName);
    		}
    	}
    }
    
    protected void saveHistoryValue() {
    	Object value = this.value;
    	String fullName = UserInputHistory.HISTORY_NAME_BASE + this.name;
    	switch (this.type) {
			case InputHistory.TYPE_BOOLEAN: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? false : ((Boolean)value).booleanValue());
				break;
			}
			case InputHistory.TYPE_DOUBLE: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? 0 : ((Double)value).doubleValue());
				break;
			}
			case InputHistory.TYPE_FLOAT: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? 0 : ((Float)value).floatValue());
				break;
			}
			case InputHistory.TYPE_INT: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? 0 : ((Integer)value).intValue());
				break;
			}
			case InputHistory.TYPE_LONG: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? 0 : ((Long)value).longValue());
				break;
			}
			default: {
		        SVNTeamUIPlugin.instance().getPreferenceStore().setValue(fullName, value == null ? "" : (String)value); //$NON-NLS-1$
			}
		}
    }
    
}