// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.gui.oauth;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.Component;

import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import javax.swing.UIManager;

import org.openstreetmap.josm.gui.widgets.JosmComboBox;

public class AuthorizationProcedureComboBox extends JosmComboBox<AuthorizationProcedure> {

    /**
     * Constructs a new {@code AuthorizationProcedureComboBox}.
     */
    public AuthorizationProcedureComboBox() {
        super(AuthorizationProcedure.values());
        setRenderer(new AuthorisationProcedureCellRenderer());
        setSelectedItem(AuthorizationProcedure.FULLY_AUTOMATIC);
    }

    private static class AuthorisationProcedureCellRenderer extends JLabel implements ListCellRenderer<AuthorizationProcedure> {
        AuthorisationProcedureCellRenderer() {
            setOpaque(true);
        }

        protected void renderColors(boolean isSelected) {
            if (isSelected) {
                setForeground(UIManager.getColor("List.selectionForeground"));
                setBackground(UIManager.getColor("List.selectionBackground"));
            } else {
                setForeground(UIManager.getColor("List.foreground"));
                setBackground(UIManager.getColor("List.background"));
            }
        }

        protected void renderText(AuthorizationProcedure value) {
            switch(value) {
            case FULLY_AUTOMATIC:
                setText(tr("Fully automatic"));
                break;
            case SEMI_AUTOMATIC:
                setText(tr("Semi-automatic"));
                break;
            case MANUALLY:
                setText(tr("Manual"));
                break;
            }
        }

        protected void renderToolTipText(AuthorizationProcedure value) {
            switch(value) {
            case FULLY_AUTOMATIC:
                setToolTipText(tr(
                        "<html>Run a fully automatic procedure to get an access token from the OSM website.<br>"
                        + "JOSM accesses the OSM website on behalf of the JOSM user and fully<br>"
                        + "automatically authorizes the user and retrieves an Access Token.</html>"
                ));
                break;
            case SEMI_AUTOMATIC:
                setToolTipText(tr(
                        "<html>Run a semi-automatic procedure to get an access token from the OSM website.<br>"
                        + "JOSM submits the standards OAuth requests to get a Request Token and an<br>"
                        + "Access Token. It dispatches the user to the OSM website in an external browser<br>"
                        + "to authenticate itself and to accept the request token submitted by JOSM.</html>"
                ));
                break;
            case MANUALLY:
                setToolTipText(tr(
                        "<html>Enter an Access Token manually if it was generated and retrieved outside<br>"
                        + "of JOSM.</html>"
                ));
                break;
            }
        }

        @Override
        public Component getListCellRendererComponent(JList<? extends AuthorizationProcedure> list, AuthorizationProcedure procedure,
                int idx, boolean isSelected, boolean hasFocus) {
            renderColors(isSelected);
            renderText(procedure);
            renderToolTipText(procedure);
            return this;
        }
    }
}