package org.gcube.portlets.widgets.githubconnector.client;

import org.gcube.portlets.widgets.githubconnector.client.wizard.WizardCard;
import org.gcube.portlets.widgets.githubconnector.shared.git.credential.GitHubCredential;
import org.gcube.portlets.widgets.githubconnector.shared.git.credential.GitHubCredentialType;

import com.google.gwt.core.shared.GWT;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.DecoratorPanel;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.RadioButton;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.TextBox;

public class GitHubConnectorCredentialCard extends WizardCard {

	private GitHubCredential gitHubCredential;
	private GitHubCredentialType selected;
	private SimplePanel simplePanel;
	private FlexTable layout;
	private TextBox userName;
	private TextBox password;
	private TextBox token;
	//private DecoratorPanel decPanel;

	public GitHubConnectorCredentialCard() {
		super("Credential", "Select the credentials to use");
		selected = GitHubCredentialType.Anonymous;

		simplePanel = new SimplePanel();
		// Form
		layout = new FlexTable();
		layout.setCellSpacing(16);

		userName = new TextBox();
		password = new TextBox();
		token = new TextBox();

		// Add some standard form options
		HorizontalPanel hPanel = new HorizontalPanel();
		hPanel.setSpacing(10);

		for (GitHubCredentialType type : GitHubCredentialType.values()) {

			RadioButton radioButton = new RadioButton("credentialType",
					type.getLabel());
			radioButton.getElement().setAttribute("itemId", type.name());
			radioButton.ensureDebugId("radioButton-credentialType-"
					+ type.name());
			radioButton
					.addValueChangeHandler(new ValueChangeHandler<Boolean>() {

						@Override
						public void onValueChange(
								ValueChangeEvent<Boolean> event) {
							if (event.getValue()) {
								RadioButton radioButton = (RadioButton) event
										.getSource();
								String selectedCredential = radioButton
										.getElement().getAttribute("itemId");
								GWT.log("Selected Credential: "
										+ selectedCredential);
								if (selectedCredential != null) {
									selected = GitHubCredentialType
											.valueOf(selectedCredential);

									if (selected != null) {
										switch (selected) {
										case Anonymous:
											GWT.log("Anonymous");
											setAnonymous();
											break;
										case Login:
											GWT.log("Login");
											setLogin();
											break;
										case OAuth2:
											GWT.log("OAuth2");
											setOAuth2();
											break;
										default:
											GWT.log("OAuth2");
											setAnonymous();
											break;
										}
									} else {
										selected = GitHubCredentialType.Anonymous;
										setAnonymous();
									}
								}
							}

						}
					});
			if (type.compareTo(GitHubCredentialType.Anonymous) == 0) {
				radioButton.setValue(true);
			}

			hPanel.add(radioButton);
		}

		layout.setHTML(1, 0, "Type:");
		layout.setWidget(1, 1, hPanel);

		// Wrap the content in a DecoratorPanel
		//decPanel = new DecoratorPanel();
		//decPanel.setWidget(layout);

		simplePanel.add(layout);
		setContent(simplePanel);
	
	}

	private void setAnonymous() {
		if (selected.compareTo(GitHubCredentialType.Anonymous) != 0) {
			for (int i = 1; i <= layout.getRowCount(); i++) {
				layout.removeRow(i);
			}
		}

	}

	private void setOAuth2() {
		if (selected.compareTo(GitHubCredentialType.OAuth2) != 0) {
			for (int i = 1; i <= layout.getRowCount(); i++) {
				layout.removeRow(i);
			}
			layout.setHTML(2, 0, "Token:");
			layout.add(token);
			
		}

	}

	private void setLogin() {
		if (selected.compareTo(GitHubCredentialType.Login) != 0) {
			for (int i = 1; i <= layout.getRowCount(); i++) {
				layout.removeRow(i);
			}
			layout.setHTML(2, 0, "User:");
			layout.add(userName);

			layout.setHTML(3, 0, "Password:");
			layout.add(password);
		}

	}

	@Override
	public void setup() {
		Command sayNextCard = new Command() {

			public void execute() {
				try {
					GWT.log("NextCard");
					getWizardWindow().nextCard();
				} catch (Exception e) {
					GWT.log("sayNextCard :" + e.getLocalizedMessage());
				}
			}

		};

		Command sayPreviousCard = new Command() {
			public void execute() {
				try {
					GWT.log("PreviousCard");
					getWizardWindow().previousCard();
				} catch (Exception e) {
					GWT.log("sayPreviousCard :" + e.getLocalizedMessage());
				}
			}
		};

		getWizardWindow().setPreviousButtonCommand(sayPreviousCard);
		getWizardWindow().setNextButtonCommand(sayNextCard);

		setEnableBackButton(false);
		setBackButtonVisible(false);
		setEnableNextButton(true);
		setNextButtonVisible(true);
	}

}