DietaryGuard/lib/screens/query.dart

import 'package:dietary_guard/controllers/food_data.dart';
import 'package:dietary_guard/models/food_data.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';

class QueryScreen extends StatefulWidget {
  const QueryScreen({super.key});

  @override
  State<QueryScreen> createState() => _QueryScreenState();
}

class _QueryScreenState extends State<QueryScreen> {
  bool _isLoading = false;

  int _totalCount = 0;
  List<FoodData> _foodData = List.empty();

  Future<void> _searchFood(String probe) async {
    if (_isLoading) return;

    setState(() => _isLoading = true);

    final FoodDataController data = Get.find();
    if (data.getApiKey() == null) return;

    final result = await data.searchFood(probe);

    setState(() {
      _totalCount = result.totalHits;
      _foodData = result.foods;
      _isLoading = false;
    });
  }

  @override
  void initState() {
    super.initState();
    final FoodDataController data = Get.find();
    data.initialize(context);
  }

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Column(
        children: [
          SearchBar(
            padding: const WidgetStatePropertyAll<EdgeInsets>(
              EdgeInsets.symmetric(horizontal: 16.0),
            ),
            onSubmitted: (value) {
              _searchFood(value);
            },
            leading: const Icon(Icons.search),
          ).paddingSymmetric(horizontal: 24),
          if (_isLoading)
            const SizedBox(
              width: 20,
              height: 20,
              child: CircularProgressIndicator(strokeWidth: 3),
            ).paddingSymmetric(vertical: 16)
          else
            Expanded(
              child: ListView.builder(
                itemCount: _foodData.length,
                itemBuilder: (context, index) {
                  final item = _foodData[index];
                  return ListTile(
                    contentPadding: const EdgeInsets.symmetric(horizontal: 24),
                    title: Text(item.description),
                    subtitle: Text(
                      DateFormat("yyyy-MM-dd").format(item.publishedDate),
                    ),
                  );
                },
              ).paddingOnly(top: 8),
            ),
        ],
      ),
    );
  }
}