package org.openautonomousconnection.webclient.ui;

import org.openautonomousconnection.oacswing.component.OACButton;
import org.openautonomousconnection.oacswing.component.OACPanel;

import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.function.Consumer;

/**
 * Favorites bar rendered as compact chips.
 */
public final class FavChipBar extends OACPanel {

    private final List<String> favorites = new ArrayList<>();
    private Consumer<String> onNavigate = u -> {
    };
    private Runnable onEdit = () -> {
    };

    /**
     * Creates a chip-based favorites bar.
     */
    public FavChipBar() {
        super(new BorderLayout());
        setOpaque(false);
        setBorder(new EmptyBorder(4, 8, 6, 8));
        rebuild();
    }

    private static String compactLabel(String url) {
        String s = url;
        if (s.startsWith("web://")) s = s.substring("web://".length());
        if (s.endsWith("/")) s = s.substring(0, s.length() - 1);
        if (s.isEmpty()) s = url;

        if (s.length() <= 24) return s;
        return s.substring(0, 24) + "...";
    }

    /**
     * Sets navigation callback.
     *
     * @param onNavigate callback
     */
    public void setOnNavigate(Consumer<String> onNavigate) {
        this.onNavigate = Objects.requireNonNull(onNavigate, "onNavigate");
        rebuild();
    }

    /**
     * Sets edit callback.
     *
     * @param onEdit callback
     */
    public void setOnEdit(Runnable onEdit) {
        this.onEdit = Objects.requireNonNull(onEdit, "onEdit");
        rebuild();
    }

    /**
     * Replaces favorites list.
     *
     * @param items favorites
     */
    public void setFavorites(List<String> items) {
        favorites.clear();
        if (items != null) favorites.addAll(items);
        rebuild();
    }

    private void rebuild() {
        removeAll();

        OACPanel chips = new OACPanel(new FlowLayout(FlowLayout.LEFT, 6, 0));
        chips.setOpaque(false);

        for (String url : favorites) {
            if (url == null || url.isBlank()) continue;
            String u = url.trim();

            OACButton chip = new OACButton(compactLabel("★ " + u));
            chip.setToolTipText(u);
            chip.setMargin(new Insets(3, 10, 3, 10));
            chip.setFocusable(false);
            chip.addActionListener(e -> onNavigate.accept(u));
            chips.add(chip);
        }

        OACPanel right = new OACPanel(new FlowLayout(FlowLayout.RIGHT, 6, 0));
        right.setOpaque(false);

        add(chips, BorderLayout.CENTER);
        add(right, BorderLayout.EAST);

        revalidate();
        repaint();
    }
}