bda677df89
- Remove duplicate features structure from basura_app - Migrate recycling_guide feature to lib/ - Update main.dart to use new architecture - Clean up old views structure - Remove temporary directories (basura_app, basura_backend, wiki_hackathon)
47 lines
1.4 KiB
Dart
47 lines
1.4 KiB
Dart
// lib/features/recycling_guide/data/datasources/recycling_local_datasource.dart
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// Único archivo que sabe que los datos vienen de un JSON en assets.
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// Funciona sin conexión a internet.
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import 'dart:convert';
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import 'package:flutter/services.dart';
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import '../../domain/entities/recycling_category.dart';
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class RecyclingLocalDatasource {
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static const _assetPath = 'assets/recycling_guide.json';
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// Cache en memoria — se carga una sola vez durante la sesión
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List<RecyclingCategory>? _cache;
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Future<List<RecyclingCategory>> cargarCategorias() async {
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if (_cache != null) return _cache!;
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final raw = await rootBundle.loadString(_assetPath);
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final List<dynamic> json = jsonDecode(raw);
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_cache = json.map(_mapearCategoria).toList();
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return _cache!;
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}
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RecyclingCategory _mapearCategoria(dynamic json) {
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final items = (json['items'] as List)
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.map(
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(i) => RecyclingItem(
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nombre: i['nombre'] as String,
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ejemplos: i['ejemplos'] as String,
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acepta: i['acepta'] as bool,
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),
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)
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.toList();
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return RecyclingCategory(
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id: json['id'] as String,
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nombre: json['nombre'] as String,
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descripcion: json['descripcion'] as String,
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colorHex: json['color'] as String,
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icono: json['icono'] as String,
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consejo: json['consejo'] as String,
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items: items,
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);
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}
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}
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