SearchDelegate.dart

import 'package:flutter/material.dart';

import '../http_api/ArticleApi.dart';
import '../models/ArticuloModel.dart';

class ArticleSearchDelegate extends SearchDelegate<String> {
  final ArticleApi articleApi = ArticleApi();

  ArticleSearchDelegate() : super(searchFieldLabel: 'Buscar artículos');

  @override
  List<Widget> buildActions(BuildContext context) {
    return [
      IconButton(
        icon: Icon(Icons.clear),
        onPressed: () {
          query = '';
        },
      ),
    ];
  }

  @override
  Widget buildLeading(BuildContext context) {
    return IconButton(
      icon: AnimatedIcon(
        icon: AnimatedIcons.menu_arrow,
        progress: transitionAnimation,
      ),
      onPressed: () {
        close(context, 'home');
      },
    );
  }

  @override
  Widget buildResults(BuildContext context) {
    return FutureBuilder<List<ArticleModel>>(
      future: articleApi.searchArticles(query),
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          return Center(child: CircularProgressIndicator());
        } else if (snapshot.hasError) {
          return Center(child: Text('Error: ${snapshot.error}'));
        } else if (!snapshot.hasData || snapshot.data!.isEmpty) {
          return Center(child: Text('No articles found.'));
        } else {
          final articles = snapshot.data!;
          return ListView.builder(
            itemCount: articles.length,
            itemBuilder: (context, index) {
              final article = articles[index];
              return ListTile(
                title: Text(article.nombre),
                subtitle: Text(article.precios.isNotEmpty ? '\$${article.precios.first.precio}' : 'No price available'),
                trailing: IconButton(
                  icon: Icon(Icons.add_shopping_cart),
                  onPressed: () {

                    close(context, article.nombre);
                  },
                ),
              );
            },
          );
        }
      },
    );
  }

  @override
  Widget buildSuggestions(BuildContext context) {
    if (query.isEmpty) {
      return Center(child: Text('Introduce un término de búsqueda'));
    }

    return FutureBuilder<List<ArticleModel>>(
      future: articleApi.searchArticles(query),
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          return Center(child: CircularProgressIndicator());
        } else if (snapshot.hasError) {
          return Center(child: Text('Error: ${snapshot.error}'));
        } else if (!snapshot.hasData || snapshot.data!.isEmpty) {
          return Center(child: Text('No articles found.'));
        } else {
          final articles = snapshot.data!;
          return ListView.builder(
            itemCount: articles.length,
            itemBuilder: (context, index) {
              final article = articles[index];
              return ListTile(
                title: Text(article.nombre),
                subtitle: Text(article.precios.isNotEmpty ? '\$${article.precios.first.precio}' : 'No price available'),
                trailing: IconButton(
                  icon: Icon(Icons.add_shopping_cart),
                  onPressed: () {

                    close(context, article.nombre);
                  },
                ),
              );
            },
          );
        }
      },
    );
  }
}