55 lines
1.5 KiB
Dart
55 lines
1.5 KiB
Dart
import 'package:flutter/cupertino.dart';
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import '../../app.dart';
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class CategoryApi {
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static List<CategoryModel> _categories = [];
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static List<CategoryModel> get categories => [..._categories];
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static void clearCategories() {
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_categories.clear();
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}
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static Future<List<CategoryModel>> getDescendantCategories(Map<String, dynamic> params) async {
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if (_categories.length == 0) {
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try {
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const String path = Constants.BASE_URL + 'descendant-categories';
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final response = await HttpUtil().get(path: path, queryParameters: params);
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for (final json in response['data']) {
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final CategoryModel category = CategoryModel.fromJson(json);
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_categories.add(category);
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}
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return _categories;
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} catch (error) {
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debugPrint('CategoryApi get error: $error ');
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return [];
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}
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}
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return _categories;
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}
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static List<CategoryModel> buildCategoryTree(String newValue) {
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if (categories.isEmpty) return [];
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final List<CategoryModel> list = [];
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buildTree(newValue, _categories, list);
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return list;
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}
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// build category tree recursively
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static void buildTree(String searchKey, List<CategoryModel> sourceList, List<CategoryModel> destinationList) {
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for (final category in sourceList) {
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if (category.name.toLowerCase().contains(searchKey.toLowerCase())) {
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destinationList.add(category);
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} else {
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buildTree(searchKey, category.children, destinationList);
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}
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}
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}
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}
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