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import 'package:flutter/material.dart';

class Categories extends StatefulWidget {
  @override
  CategoriesState createState() => CategoriesState();
}

class CategoriesState extends State<Categories> {
  List<String> categories = [
    "Hot Coffees",
    "Cold Coffees",
    "Hot Teas",
    "Hot Drinks",
    "Iced Teas",
    "Specials",
  ];

  int selectedIndex = 0;

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: 75.0,
      child: ListView.builder(
        itemCount: categories.length,
        scrollDirection: Axis.horizontal,
        itemBuilder: (context, index) => buildCategory(index),
      ),
    );
  }

  Widget buildCategory(int index) {
    return GestureDetector(
      onTap: () {
        setState(() {
          selectedIndex = index;
        });
      },
      child: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Text(
          categories[index],
          style: TextStyle(
            fontWeight: index == selectedIndex ? FontWeight.bold : FontWeight.normal,
          ),
        ),
      ),
    );
  }
}