feat(frontend): module Articles complet (liste, création, modification, suppression)

- Article model (MP/PSF/PF, stock, seuil alerte) - ArticleService : fetchAll, fetchByType, create, update, delete - ArticleProvider : filtrage par type + recherche temps réel - ArticlesScreen : liste, chips filtres, barre recherche, alertes stock - ArticleFormScreen : formulaire création/édition avec validation - Rapport PFE : section 5.6 module Articles Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-20 20:23:06 +01:00
parent 601a7d0373
commit ed21c3cb80
7 changed files with 915 additions and 1 deletions
@@ -0,0 +1,84 @@
+import 'package:flutter/material.dart';
+import '../models/article.dart';
+import '../services/article_service.dart';
+
+class ArticleProvider extends ChangeNotifier {
+  List<Article> _articles = [];
+  bool _isLoading = false;
+  String? _error;
+  String _filterType = 'TOUS';
+  String _search = '';
+
+  List<Article> get articles => _filtered();
+  bool get isLoading => _isLoading;
+  String? get error => _error;
+  String get filterType => _filterType;
+
+  List<Article> _filtered() {
+    return _articles.where((a) {
+      final matchType = _filterType == 'TOUS' || a.type == _filterType;
+      final matchSearch = _search.isEmpty ||
+          a.reference.toLowerCase().contains(_search.toLowerCase()) ||
+          a.designation.toLowerCase().contains(_search.toLowerCase());
+      return matchType && matchSearch;
+    }).toList();
+  }
+
+  void setFilter(String type) {
+    _filterType = type;
+    notifyListeners();
+  }
+
+  void setSearch(String q) {
+    _search = q;
+    notifyListeners();
+  }
+
+  Future<void> load() async {
+    _isLoading = true;
+    _error = null;
+    notifyListeners();
+    try {
+      _articles = await ArticleService.fetchAll();
+    } catch (_) {
+      _error = 'Impossible de charger les articles.';
+    } finally {
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<bool> create(Article article) async {
+    try {
+      final created = await ArticleService.create(article);
+      _articles.add(created);
+      notifyListeners();
+      return true;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  Future<bool> update(int id, Article article) async {
+    try {
+      final updated = await ArticleService.update(id, article);
+      final idx = _articles.indexWhere((a) => a.id == id);
+      if (idx != -1) _articles[idx] = updated;
+      notifyListeners();
+      return true;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  Future<bool> delete(int id) async {
+    try {
+      await ArticleService.delete(id);
+      _articles.removeWhere((a) => a.id == id);
+      notifyListeners();
+      return true;
+    } catch (_) {
+      return false;
+    }
+  }
+}