Initial commit

lib/presentation/providers/movie_list_provider.dart

@@ -0,0 +1,91 @@
+import 'package:flutter/material.dart';
+import 'package:neomovies_mobile/data/models/movie.dart';
+import 'package:neomovies_mobile/data/repositories/movie_repository.dart';
+
+// Enum to define the category of movies to fetch
+enum MovieCategory { popular, topRated, upcoming }
+
+class MovieListProvider extends ChangeNotifier {
+  final MovieRepository _movieRepository;
+  final MovieCategory category;
+
+  MovieListProvider({
+    required this.category,
+    required MovieRepository movieRepository,
+  }) : _movieRepository = movieRepository;
+
+  List<Movie> _movies = [];
+  List<Movie> get movies => _movies;
+
+  int _currentPage = 1;
+  bool _isLoading = false;
+  bool _isLoadingMore = false;
+  bool _hasMore = true;
+  String? _errorMessage;
+
+  bool get isLoading => _isLoading;
+  bool get isLoadingMore => _isLoadingMore;
+  String? get errorMessage => _errorMessage;
+
+  Future<void> fetchInitialMovies() async {
+    if (_isLoading) return;
+
+    _isLoading = true;
+    _errorMessage = null;
+    notifyListeners();
+
+    try {
+      final newMovies = await _fetchMoviesForCategory(page: 1);
+      _movies = newMovies;
+      _currentPage = 1;
+      _hasMore = newMovies.isNotEmpty;
+    } catch (e) {
+      _errorMessage = e.toString();
+    } finally {
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<void> fetchNextPage() async {
+    if (_isLoadingMore || !_hasMore) return;
+
+    _isLoadingMore = true;
+    notifyListeners();
+
+    try {
+      final newMovies = await _fetchMoviesForCategory(page: _currentPage + 1);
+      _movies.addAll(newMovies);
+      _currentPage++;
+      _hasMore = newMovies.isNotEmpty;
+    } catch (e) {
+      // Optionally handle error for pagination differently
+      _errorMessage = e.toString();
+    } finally {
+      _isLoadingMore = false;
+      notifyListeners();
+    }
+  }
+
+  Future<List<Movie>> _fetchMoviesForCategory({required int page}) {
+    switch (category) {
+      case MovieCategory.popular:
+        return _movieRepository.getPopularMovies(page: page);
+      case MovieCategory.topRated:
+        return _movieRepository.getTopRatedMovies(page: page);
+      case MovieCategory.upcoming:
+        return _movieRepository.getUpcomingMovies(page: page);
+    }
+  }
+
+  String getTitle() {
+    switch (category) {
+      case MovieCategory.popular:
+        return 'Popular Movies';
+      case MovieCategory.topRated:
+        return 'Top Rated Movies';
+      case MovieCategory.upcoming:
+        return 'Latest Movies';
+    }
+  }
+}