/*******************************************************************************
 * Copyright (c) 2004, 2009 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.html.ui.internal.edit.ui;

import org.eclipse.core.runtime.Preferences;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
import org.eclipse.wst.html.ui.internal.HTMLUIMessages;
import org.eclipse.wst.html.ui.internal.editor.IHelpContextIds;
import org.eclipse.wst.sse.core.internal.encoding.CommonEncodingPreferenceNames;
import org.eclipse.wst.xml.ui.internal.XMLUIMessages;

public class CleanupDialogHTML extends Dialog implements SelectionListener {

	protected Button fRadioButtonTagNameCaseAsis;
	protected Button fRadioButtonTagNameCaseLower;
	protected Button fRadioButtonTagNameCaseUpper;
	protected Button fRadioButtonAttrNameCaseAsis;
	protected Button fRadioButtonAttrNameCaseLower;
	protected Button fRadioButtonAttrNameCaseUpper;
	protected Button fCheckBoxCompressEmptyElementTags;
	protected Button fCheckBoxInsertRequiredAttrs;
	protected Button fCheckBoxInsertMissingTags;
	protected Button fCheckBoxQuoteAttrValues;
	protected Button fCheckBoxFormatSource;
	protected Button fCheckBoxConvertEOLCodes;
	protected Button fRadioButtonConvertEOLWindows;
	protected Button fRadioButtonConvertEOLUnix;
	protected Button fRadioButtonConvertEOLMac;
	protected Preferences fPreferences = null;
	private boolean fIsXHTML = false;
	private Group fTagNameCase;
	private Group fAttrNameCase;

	public CleanupDialogHTML(Shell shell) {
		super(shell);
	}

	protected Control createDialogArea(Composite parent) {
		getShell().setText(HTMLUIMessages.Cleanup_UI_);
		Composite composite = new Composite(parent, SWT.NULL);

		createDialogAreaInComposite(composite);
		initializeOptions();

		return composite;
	}

	protected Control createButtonBar(Composite parent) {
		Control c = super.createButtonBar(parent);
		okButtonEnablement();
		return c;
	}

	protected void createDialogAreaInCompositeForHTML(Composite composite) {
		// Convert tag name case
		// d257064 need to associate group w/ radio buttons so radio buttons
		// header can be read
		fTagNameCase = new Group(composite, SWT.NONE);
		fTagNameCase.setText(HTMLUIMessages.Tag_name_case_for_HTML_UI_);
		GridLayout hLayout = new GridLayout();
		hLayout.numColumns = 3;
		fTagNameCase.setLayout(hLayout);
		fRadioButtonTagNameCaseAsis = new Button(fTagNameCase, SWT.RADIO);
		fRadioButtonTagNameCaseAsis.setText(HTMLUIMessages.Tag_name_case_As_is_UI_);
		fRadioButtonTagNameCaseAsis.addSelectionListener(this);
		fRadioButtonTagNameCaseLower = new Button(fTagNameCase, SWT.RADIO);
		fRadioButtonTagNameCaseLower.setText(HTMLUIMessages.Tag_name_case_Lower_UI_);
		fRadioButtonTagNameCaseLower.addSelectionListener(this);
		fRadioButtonTagNameCaseUpper = new Button(fTagNameCase, SWT.RADIO);
		fRadioButtonTagNameCaseUpper.setText(HTMLUIMessages.Tag_name_case_Upper_UI_);
		fRadioButtonTagNameCaseUpper.addSelectionListener(this);

		// Convert attr name case
		// d257064 need to associate group w/ radio buttons so radio buttons
		// header can be read
		fAttrNameCase = new Group(composite, SWT.NONE);
		fAttrNameCase.setText(HTMLUIMessages.Attribute_name_case_for_HTML_UI_);
		fAttrNameCase.setLayout(hLayout);
		fRadioButtonAttrNameCaseAsis = new Button(fAttrNameCase, SWT.RADIO);
		fRadioButtonAttrNameCaseAsis.setText(HTMLUIMessages.Attribute_name_case_As_is_UI_);
		fRadioButtonAttrNameCaseAsis.addSelectionListener(this);
		fRadioButtonAttrNameCaseLower = new Button(fAttrNameCase, SWT.RADIO);
		fRadioButtonAttrNameCaseLower.setText(HTMLUIMessages.Attribute_name_case_Lower_UI_);
		fRadioButtonAttrNameCaseLower.addSelectionListener(this);
		fRadioButtonAttrNameCaseUpper = new Button(fAttrNameCase, SWT.RADIO);
		fRadioButtonAttrNameCaseUpper.setText(HTMLUIMessages.Attribute_name_case_Upper_UI_);
		fRadioButtonAttrNameCaseUpper.addSelectionListener(this);
	}

	protected void createDialogAreaInComposite(Composite composite) {
		createDialogAreaInCompositeForHTML(composite);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.CLEANUP_HTML_HELPID); // use
		// HTML
		// specific
		// help

		GridLayout layout = new GridLayout();
		layout.numColumns = 1;
		layout.makeColumnsEqualWidth = true;
		composite.setLayout(layout);

		// Compress empty element tags
		fCheckBoxCompressEmptyElementTags = new Button(composite, SWT.CHECK);
		fCheckBoxCompressEmptyElementTags.setText(XMLUIMessages.Compress_empty_element_tags_UI_);
		fCheckBoxCompressEmptyElementTags.addSelectionListener(this);

		// Insert missing required attrs
		fCheckBoxInsertRequiredAttrs = new Button(composite, SWT.CHECK);
		fCheckBoxInsertRequiredAttrs.setText(HTMLUIMessages.Insert_required_attributes_UI_);
		fCheckBoxInsertRequiredAttrs.addSelectionListener(this);

		// Insert missing begin/end tags
		fCheckBoxInsertMissingTags = new Button(composite, SWT.CHECK);
		fCheckBoxInsertMissingTags.setText(HTMLUIMessages.Insert_missing_tags_UI_);
		fCheckBoxInsertMissingTags.addSelectionListener(this);

		// Quote attribute values
		fCheckBoxQuoteAttrValues = new Button(composite, SWT.CHECK);
		fCheckBoxQuoteAttrValues.setText(HTMLUIMessages.Quote_attribute_values_UI_);
		fCheckBoxQuoteAttrValues.addSelectionListener(this);

		// Format source
		fCheckBoxFormatSource = new Button(composite, SWT.CHECK);
		fCheckBoxFormatSource.setText(HTMLUIMessages.Format_source_UI_);
		fCheckBoxFormatSource.addSelectionListener(this);

		// Convert EOL code
		fCheckBoxConvertEOLCodes = new Button(composite, SWT.CHECK);
		fCheckBoxConvertEOLCodes.setText(HTMLUIMessages.Convert_EOL_codes_UI_);
		fCheckBoxConvertEOLCodes.addSelectionListener(this);
		Composite EOLCodes = new Composite(composite, SWT.NULL);
		GridLayout hLayout = new GridLayout();
		hLayout.numColumns = 3;
		EOLCodes.setLayout(hLayout);
		fRadioButtonConvertEOLWindows = new Button(EOLCodes, SWT.RADIO);
		fRadioButtonConvertEOLWindows.setText(HTMLUIMessages.EOL_Windows_UI);
		fRadioButtonConvertEOLWindows.addSelectionListener(this);
		fRadioButtonConvertEOLUnix = new Button(EOLCodes, SWT.RADIO);
		fRadioButtonConvertEOLUnix.setText(HTMLUIMessages.EOL_Unix_UI);
		fRadioButtonConvertEOLUnix.addSelectionListener(this);
		fRadioButtonConvertEOLMac = new Button(EOLCodes, SWT.RADIO);
		fRadioButtonConvertEOLMac.setText(HTMLUIMessages.EOL_Mac_UI);
		fRadioButtonConvertEOLMac.addSelectionListener(this);
	}

	protected void okPressed() {
		storeOptions();

		super.okPressed();
	}

	protected void initializeOptionsForHTML() {
		boolean caseSensitive = isXHTMLType();

		if (caseSensitive) {
			fRadioButtonTagNameCaseLower.setSelection(true);
		} else {
			int tagNameCase = getModelPreferences().getInt(HTMLCorePreferenceNames.CLEANUP_TAG_NAME_CASE);
			if (tagNameCase == HTMLCorePreferenceNames.UPPER) {
				fRadioButtonTagNameCaseUpper.setSelection(true);
			} else if (tagNameCase == HTMLCorePreferenceNames.LOWER)
				fRadioButtonTagNameCaseLower.setSelection(true);
			else
				fRadioButtonTagNameCaseAsis.setSelection(true);
		}

		if (caseSensitive) {
			fRadioButtonAttrNameCaseLower.setSelection(true);
		} else {
			int attrNameCase = getModelPreferences().getInt(HTMLCorePreferenceNames.CLEANUP_ATTR_NAME_CASE);
			if (attrNameCase == HTMLCorePreferenceNames.UPPER) {
				fRadioButtonAttrNameCaseUpper.setSelection(true);
			} else if (attrNameCase == HTMLCorePreferenceNames.LOWER)
				fRadioButtonAttrNameCaseLower.setSelection(true);
			else
				fRadioButtonAttrNameCaseAsis.setSelection(true);
		}

		enableCaseControls(!caseSensitive);
	}

	protected void initializeOptions() {
		initializeOptionsForHTML();

		fCheckBoxCompressEmptyElementTags.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.COMPRESS_EMPTY_ELEMENT_TAGS));
		fCheckBoxInsertRequiredAttrs.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.INSERT_REQUIRED_ATTRS));
		fCheckBoxInsertMissingTags.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.INSERT_MISSING_TAGS));
		fCheckBoxQuoteAttrValues.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.QUOTE_ATTR_VALUES));
		fCheckBoxFormatSource.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.FORMAT_SOURCE));
		fCheckBoxConvertEOLCodes.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.CONVERT_EOL_CODES));
		if (fCheckBoxConvertEOLCodes.getSelection()) {
			String EOLCode = getModelPreferences().getString(HTMLCorePreferenceNames.CLEANUP_EOL_CODE);
			if (EOLCode == CommonEncodingPreferenceNames.LF)
				fRadioButtonConvertEOLUnix.setSelection(true);
			else if (EOLCode == CommonEncodingPreferenceNames.CR)
				fRadioButtonConvertEOLMac.setSelection(true);
			else
				fRadioButtonConvertEOLWindows.setSelection(true);
		}
		enableEOLCodeRadios(fCheckBoxConvertEOLCodes.getSelection());
	}

	protected void storeOptionsForHTML() {
		if (!isXHTMLType() && fRadioButtonTagNameCaseUpper.getSelection())
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_TAG_NAME_CASE, HTMLCorePreferenceNames.UPPER);
		else if (fRadioButtonTagNameCaseLower.getSelection())
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_TAG_NAME_CASE, HTMLCorePreferenceNames.LOWER);
		else
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_TAG_NAME_CASE, HTMLCorePreferenceNames.ASIS);

		if (!isXHTMLType() && fRadioButtonAttrNameCaseUpper.getSelection())
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_ATTR_NAME_CASE, HTMLCorePreferenceNames.UPPER);
		else if (fRadioButtonAttrNameCaseLower.getSelection())
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_ATTR_NAME_CASE, HTMLCorePreferenceNames.LOWER);
		else
			getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_ATTR_NAME_CASE, HTMLCorePreferenceNames.ASIS);

		// explicitly save plugin preferences so values are stored
		HTMLCorePlugin.getDefault().savePluginPreferences();
	}

	protected void storeOptions() {
		storeOptionsForHTML();

		getModelPreferences().setValue(HTMLCorePreferenceNames.COMPRESS_EMPTY_ELEMENT_TAGS, fCheckBoxCompressEmptyElementTags.getSelection());
		getModelPreferences().setValue(HTMLCorePreferenceNames.INSERT_REQUIRED_ATTRS, fCheckBoxInsertRequiredAttrs.getSelection());
		getModelPreferences().setValue(HTMLCorePreferenceNames.INSERT_MISSING_TAGS, fCheckBoxInsertMissingTags.getSelection());
		getModelPreferences().setValue(HTMLCorePreferenceNames.QUOTE_ATTR_VALUES, fCheckBoxQuoteAttrValues.getSelection());
		getModelPreferences().setValue(HTMLCorePreferenceNames.FORMAT_SOURCE, fCheckBoxFormatSource.getSelection());
		getModelPreferences().setValue(HTMLCorePreferenceNames.CONVERT_EOL_CODES, fCheckBoxConvertEOLCodes.getSelection());

		if (fCheckBoxConvertEOLCodes.getSelection()) {
			if (fRadioButtonConvertEOLUnix.getSelection()) {
				getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_EOL_CODE, CommonEncodingPreferenceNames.LF);
			} else if (fRadioButtonConvertEOLMac.getSelection()) {
				getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_EOL_CODE, CommonEncodingPreferenceNames.CR);
			} else {
				getModelPreferences().setValue(HTMLCorePreferenceNames.CLEANUP_EOL_CODE, CommonEncodingPreferenceNames.CRLF);
			}
		}

		// explicitly save plugin preferences so values are stored
		HTMLCorePlugin.getDefault().savePluginPreferences();
	}

	public void widgetDefaultSelected(SelectionEvent e) {
		widgetSelected(e);
	}

	public void widgetSelected(SelectionEvent e) {
		if (e.widget == fCheckBoxConvertEOLCodes)
			enableEOLCodeRadios(fCheckBoxConvertEOLCodes.getSelection());

		okButtonEnablement();
	}

	protected Preferences getModelPreferences() {
		return HTMLCorePlugin.getDefault().getPluginPreferences();
	}

	private boolean isXHTMLType() {
		return fIsXHTML;
	}

	protected void enableEOLCodeRadios(boolean enable) {
		if ((fRadioButtonConvertEOLWindows != null) && (fRadioButtonConvertEOLUnix != null) && (fRadioButtonConvertEOLMac != null)) {
			fRadioButtonConvertEOLWindows.setEnabled(enable);
			fRadioButtonConvertEOLUnix.setEnabled(enable);
			fRadioButtonConvertEOLMac.setEnabled(enable);

			if (!fRadioButtonConvertEOLWindows.getSelection() && !fRadioButtonConvertEOLUnix.getSelection() && !fRadioButtonConvertEOLMac.getSelection())
				fRadioButtonConvertEOLWindows.setSelection(true);
		}
	}

	/**
	 * Enables/disables the tag/attr case radio buttons
	 */
	private void enableCaseControls(boolean enable) {
		fTagNameCase.setEnabled(enable);
		fRadioButtonTagNameCaseAsis.setEnabled(enable);
		fRadioButtonTagNameCaseLower.setEnabled(enable);
		fRadioButtonTagNameCaseUpper.setEnabled(enable);

		fAttrNameCase.setEnabled(enable);
		fRadioButtonAttrNameCaseAsis.setEnabled(enable);
		fRadioButtonAttrNameCaseLower.setEnabled(enable);
		fRadioButtonAttrNameCaseUpper.setEnabled(enable);
	}

	/**
	 * Enables/disables OK button
	 * 
	 */
	private void okButtonEnablement() {
		boolean tagNameCaseCheck = ((fRadioButtonTagNameCaseUpper != null && fRadioButtonTagNameCaseUpper.getSelection()) || fRadioButtonTagNameCaseLower.getSelection());
		boolean attrNameCaseCheck = ((fRadioButtonAttrNameCaseUpper != null && fRadioButtonAttrNameCaseUpper.getSelection()) || fRadioButtonAttrNameCaseLower.getSelection());
		boolean eolCheck = fCheckBoxConvertEOLCodes.getSelection() && (fRadioButtonConvertEOLUnix.getSelection() || fRadioButtonConvertEOLMac.getSelection() || fRadioButtonConvertEOLWindows.getSelection());
		boolean buttonEnabled = tagNameCaseCheck || attrNameCaseCheck || fCheckBoxInsertRequiredAttrs.getSelection() || fCheckBoxInsertMissingTags.getSelection() || fCheckBoxQuoteAttrValues.getSelection() || fCheckBoxFormatSource.getSelection() || eolCheck;
		getButton(IDialogConstants.OK_ID).setEnabled(buttonEnabled);
	}

	void setisXHTMLType(boolean isXHTML) {
		fIsXHTML = isXHTML;
	}
}