684 lines
27 KiB
Dart
684 lines
27 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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import 'package:firebase_storage/firebase_storage.dart';
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import 'package:image_picker/image_picker.dart';
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import 'dart:io';
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import 'training_detail_screen.dart';
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import '../models/categories.dart';
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/// The SearchTab displays a searchable and filterable list of training exercises.
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class SearchTab extends StatefulWidget {
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/// If true, enables selection mode for choosing exercises.
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final bool selectMode;
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/// Remaining time for selection mode (optional).
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final int? remainingTime;
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const SearchTab({
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super.key,
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this.selectMode = false,
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this.remainingTime,
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});
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@override
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State<SearchTab> createState() => _SearchTabState();
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}
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class _SearchTabState extends State<SearchTab> {
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// Controller for the search input field.
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final TextEditingController _searchController = TextEditingController();
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// List of available exercise categories.
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List<String> get _categories => kTrainingCategories.map((c) => c.name).toList();
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// Currently selected category for filtering.
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String? _selectedCategory;
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// Current search term entered by the user.
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String _searchTerm = '';
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// Indicates if the user is a trainer.
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bool _isTrainer = false;
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// Indicates if the trainer check has completed.
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bool _trainerChecked = false;
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// Set of favorite exercise IDs.
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Set<String> _favorites = {};
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// Filter state variables
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double _minDuration = 0;
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double _maxDuration = 120;
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String? _selectedYear;
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double _minRating = 0.0;
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// Temporary filter state for modal
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double _tempMinDuration = 0;
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double _tempMaxDuration = 120;
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String? _tempSelectedYear;
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double _tempMinRating = 0.0;
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// Level categories for filter
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final List<String> _levelCategories = [
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'Bambini',
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'F-Jugend',
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'E-Jugend',
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'D-Jugend',
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'C-Jugend',
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'B-Jugend',
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'A-Jugend',
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'Herren',
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];
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@override
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void initState() {
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super.initState();
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// Listen for changes in the search field and update the search term.
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_searchController.addListener(() {
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setState(() {
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_searchTerm = _searchController.text.trim();
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});
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});
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_checkIfTrainer();
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_loadFavorites();
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}
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/// Checks if the current user is a trainer and updates state.
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Future<void> _checkIfTrainer() async {
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final user = FirebaseAuth.instance.currentUser;
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if (user == null) return;
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final doc = await FirebaseFirestore.instance.collection('User').doc(user.uid).get();
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setState(() {
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_isTrainer = doc.data()?['role'] == 'trainer';
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_trainerChecked = true;
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});
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}
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/// Loads the user's favorite exercises from Firestore.
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Future<void> _loadFavorites() async {
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final user = FirebaseAuth.instance.currentUser;
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if (user == null) return;
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final doc = await FirebaseFirestore.instance.collection('User').doc(user.uid).get();
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final data = doc.data();
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if (data != null && data['favorites'] != null) {
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setState(() {
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_favorites = Set<String>.from(data['favorites']);
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});
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}
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}
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/// Shows a dialog for creating a new training exercise (trainer only).
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void _showCreateTrainingDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (context) => _CreateTrainingDialog(categories: _categories),
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).then((_) => setState(() {})); // Refresh after adding
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}
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/// Toggles the favorite status of an exercise for the current user.
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Future<void> _toggleFavorite(String trainingId, bool isFavorite) async {
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final user = FirebaseAuth.instance.currentUser;
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if (user == null) return;
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if (isFavorite) {
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await FirebaseFirestore.instance.collection('User').doc(user.uid).update({
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'favorites': FieldValue.arrayRemove([trainingId]),
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});
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} else {
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await FirebaseFirestore.instance.collection('User').doc(user.uid).update({
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'favorites': FieldValue.arrayUnion([trainingId]),
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});
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}
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await _loadFavorites(); // Update favorites after toggling
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}
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void _openFilterModal() async {
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// Set temp values to current filter state
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_tempMinDuration = _minDuration;
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_tempMaxDuration = _maxDuration;
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_tempSelectedYear = _selectedYear;
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_tempMinRating = _minRating;
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await showModalBottomSheet(
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context: context,
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isScrollControlled: true,
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builder: (context) {
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return Padding(
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padding: EdgeInsets.only(
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bottom: MediaQuery.of(context).viewInsets.bottom,
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left: 16,
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right: 16,
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top: 24,
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),
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child: StatefulBuilder(
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builder: (context, setModalState) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text('Filter', style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
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const SizedBox(height: 16),
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// Duration filter
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Row(
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children: [
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const Text('Dauer:'),
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Expanded(
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child: RangeSlider(
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values: RangeValues(_tempMinDuration, _tempMaxDuration),
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min: 0,
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max: 300,
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divisions: 30,
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labels: RangeLabels('${_tempMinDuration.toInt()} min', '${_tempMaxDuration.toInt()} min'),
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onChanged: (values) {
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setModalState(() {
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_tempMinDuration = values.start;
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_tempMaxDuration = values.end;
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});
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},
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),
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),
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],
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),
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// Year/Level filter
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Row(
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children: [
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const Text('Level:'),
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const SizedBox(width: 8),
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Expanded(
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child: DropdownButton<String>(
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value: _tempSelectedYear,
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hint: const Text('Alle'),
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items: [
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const DropdownMenuItem<String>(value: null, child: Text('Alle')),
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..._levelCategories.map((y) => DropdownMenuItem(value: y, child: Text(y))),
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],
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onChanged: (value) {
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setModalState(() {
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_tempSelectedYear = value;
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});
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},
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),
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),
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],
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),
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// Minimum rating filter
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Row(
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children: [
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const Text('Mindestbewertung:'),
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Expanded(
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child: Slider(
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value: _tempMinRating,
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min: 0,
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max: 5,
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divisions: 10,
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label: _tempMinRating.toStringAsFixed(1),
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onChanged: (value) {
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setModalState(() {
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_tempMinRating = value;
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});
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},
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),
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),
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Text(_tempMinRating.toStringAsFixed(1)),
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],
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),
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const SizedBox(height: 16),
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Row(
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mainAxisAlignment: MainAxisAlignment.end,
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children: [
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TextButton(
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onPressed: () {
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Navigator.pop(context);
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},
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child: const Text('Abbrechen'),
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),
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ElevatedButton(
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onPressed: () {
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setState(() {
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_minDuration = _tempMinDuration;
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_maxDuration = _tempMaxDuration;
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_selectedYear = _tempSelectedYear;
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_minRating = _tempMinRating;
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});
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Navigator.pop(context);
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},
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child: const Text('Anwenden'),
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),
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],
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),
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const SizedBox(height: 8),
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],
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);
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},
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),
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);
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},
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);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Suche'),
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actions: [
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if (_isTrainer && _trainerChecked)
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IconButton(
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icon: const Icon(Icons.add),
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onPressed: () => _showCreateTrainingDialog(context),
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),
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],
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),
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body: Column(
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children: [
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// Search bar
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Padding(
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padding: const EdgeInsets.all(16.0),
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child: TextField(
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controller: _searchController,
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decoration: const InputDecoration(
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labelText: 'Suche nach Übungen...',
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prefixIcon: Icon(Icons.search),
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border: OutlineInputBorder(),
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),
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),
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),
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// Category filter chips
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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const Text(
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'Kategorien',
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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// Filter button opens the modal with advanced filters
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ElevatedButton.icon(
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onPressed: _openFilterModal,
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icon: const Icon(Icons.filter_list),
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label: const Text('Filter'),
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
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textStyle: const TextStyle(fontSize: 14),
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),
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),
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],
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),
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const SizedBox(height: 12),
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// Horizontal scrollable category chips
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SizedBox(
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height: 40,
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child: ListView(
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scrollDirection: Axis.horizontal,
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children: [
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// "Alle" chip
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Padding(
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padding: const EdgeInsets.only(right: 8.0),
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child: FilterChip(
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label: const Text('Alle'),
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selected: _selectedCategory == null,
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onSelected: (selected) {
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setState(() {
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_selectedCategory = null;
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});
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},
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),
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),
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// Category chips
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..._categories.map((category) => Padding(
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padding: const EdgeInsets.only(right: 8.0),
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child: FilterChip(
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label: Text(category),
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selected: _selectedCategory == category,
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onSelected: (selected) {
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setState(() {
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_selectedCategory = selected ? category : null;
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});
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},
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),
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)).toList(),
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],
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),
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),
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],
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),
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),
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const SizedBox(height: 16),
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// Exercise list
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Expanded(
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child: FutureBuilder<QuerySnapshot>(
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future: FirebaseFirestore.instance.collection('Training').get(),
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.waiting) {
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return const Center(child: CircularProgressIndicator());
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}
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if (snapshot.hasError) {
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return Center(child: Text('Fehler: ${snapshot.error}'));
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}
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if (!snapshot.hasData || snapshot.data!.docs.isEmpty) {
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return const Center(child: Text('Keine Übungen gefunden'));
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}
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// Filter exercises by search term and category.
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var exercises = snapshot.data!.docs.where((doc) {
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final data = doc.data() as Map<String, dynamic>;
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final title = data['title']?.toString().toLowerCase() ?? '';
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final description = data['description']?.toString().toLowerCase() ?? '';
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final category = data['category']?.toString() ?? '';
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final duration = (data['duration'] as num?)?.toInt() ?? 0;
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final year = data['year']?.toString() ?? '';
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final rating = (data['rating overall'] as num?)?.toDouble() ?? 0.0;
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final searchTerm = _searchTerm.toLowerCase();
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final matchesSearch = title.contains(searchTerm) || description.contains(searchTerm);
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final matchesCategory = _selectedCategory == null || category == _selectedCategory;
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final matchesDuration = duration >= _minDuration && duration <= _maxDuration;
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final matchesYear = _selectedYear == null || _selectedYear == '' || year == _selectedYear;
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final matchesRating = rating >= _minRating;
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return matchesSearch && matchesCategory && matchesDuration && matchesYear && matchesRating;
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}).toList();
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if (exercises.isEmpty) {
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return const Center(child: Text('Keine Übungen gefunden'));
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}
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return GridView.builder(
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padding: const EdgeInsets.all(8),
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gridDelegate: const SliverGridDelegateWithMaxCrossAxisExtent(
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maxCrossAxisExtent: 300,
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childAspectRatio: 0.75,
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crossAxisSpacing: 10,
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mainAxisSpacing: 10,
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),
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itemCount: exercises.length,
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itemBuilder: (context, index) {
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final doc = exercises[index];
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final data = doc.data() as Map<String, dynamic>;
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final duration = (data['duration'] as num?)?.toInt() ?? 0;
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// Disable selection if duration exceeds remaining time in select mode.
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final isDisabled = widget.selectMode && duration > (widget.remainingTime ?? 0);
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return Card(
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child: Stack(
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children: [
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InkWell(
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onTap: isDisabled
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? null
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: () {
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if (widget.selectMode) {
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// Return selected exercise data in select mode.
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Navigator.pop(context, {
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'id': doc.id,
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'title': data['title']?.toString() ?? 'Unbekannte Übung',
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'description': data['description']?.toString() ?? '',
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'duration': duration,
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});
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} else {
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// Navigate to exercise detail screen.
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => TrainingDetailScreen(trainingId: doc.id),
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),
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);
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}
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},
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Expanded(
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child: Container(
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color: Colors.grey[200],
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child: const Center(
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child: Icon(Icons.fitness_center, size: 50),
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),
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),
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),
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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data['title']?.toString() ?? 'Unbekannte Übung',
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style: const TextStyle(
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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const SizedBox(height: 4),
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Row(
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children: [
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const Icon(Icons.star, color: Colors.amber, size: 16),
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const SizedBox(width: 4),
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Text(
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(data['rating overall'] ?? 0.0).toStringAsFixed(1),
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style: const TextStyle(fontSize: 12),
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),
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],
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),
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const SizedBox(height: 4),
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Text(
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'Dauer: ${duration} Minuten',
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style: const TextStyle(fontSize: 12, color: Colors.grey),
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),
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if (isDisabled)
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const Padding(
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padding: EdgeInsets.only(top: 4),
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child: Text(
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'Passt nicht in die verbleibende Zeit',
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style: TextStyle(
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color: Colors.orange,
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fontSize: 12,
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),
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),
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),
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],
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),
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),
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],
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),
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),
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// Favorite icon button (toggle favorite status).
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Positioned(
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top: 4,
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right: 4,
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child: IconButton(
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icon: Icon(
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_favorites.contains(doc.id) ? Icons.favorite : Icons.favorite_border,
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color: _favorites.contains(doc.id) ? Colors.red : Colors.grey,
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),
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onPressed: () => _toggleFavorite(doc.id, _favorites.contains(doc.id)),
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),
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),
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],
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),
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);
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},
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);
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},
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),
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),
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],
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),
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);
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}
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@override
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void dispose() {
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_searchController.dispose();
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super.dispose();
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}
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}
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/// Dialog for creating a new training exercise.
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class _CreateTrainingDialog extends StatefulWidget {
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final List<String> categories;
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const _CreateTrainingDialog({required this.categories});
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@override
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State<_CreateTrainingDialog> createState() => _CreateTrainingDialogState();
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}
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class _CreateTrainingDialogState extends State<_CreateTrainingDialog> {
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// Form key for validating the create training form.
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final _formKey = GlobalKey<FormState>();
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// Selected category for the new training.
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String? _category;
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// Title of the new training.
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String? _title;
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// Description of the new training.
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String? _description;
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// Duration of the new training.
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int? _duration;
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// Difficulty level or year.
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String? _year;
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// Indicates if the dialog is loading (creating training).
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bool _loading = false;
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// Selected image file for the training.
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File? _imageFile;
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// Image picker instance.
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final _picker = ImagePicker();
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// Level categories for dropdown
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final List<String> _levelCategories = [
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'Bambini',
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'F-Jugend',
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'E-Jugend',
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'D-Jugend',
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'C-Jugend',
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'B-Jugend',
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'A-Jugend',
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'Herren',
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];
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/// Opens the image picker to select an image from the gallery.
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Future<void> _pickImage() async {
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final pickedFile = await _picker.pickImage(source: ImageSource.gallery);
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if (pickedFile != null) {
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setState(() {
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_imageFile = File(pickedFile.path);
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});
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}
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}
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/// Uploads the selected image to Firebase Storage and returns the download URL.
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Future<String?> _uploadImage() async {
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if (_imageFile == null) return null;
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|
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final storageRef = FirebaseStorage.instance
|
|
.ref()
|
|
.child('training_images')
|
|
.child('${DateTime.now().millisecondsSinceEpoch}.jpg');
|
|
|
|
try {
|
|
final uploadTask = await storageRef.putFile(_imageFile!);
|
|
return await uploadTask.ref.getDownloadURL();
|
|
} catch (e) {
|
|
print('Error uploading image: $e');
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return AlertDialog(
|
|
title: const Text('Neues Training erstellen'),
|
|
content: SingleChildScrollView(
|
|
child: Form(
|
|
key: _formKey,
|
|
child: Column(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
if (_imageFile != null)
|
|
Container(
|
|
height: 200,
|
|
width: double.infinity,
|
|
margin: const EdgeInsets.only(bottom: 16),
|
|
decoration: BoxDecoration(
|
|
image: DecorationImage(
|
|
image: FileImage(_imageFile!),
|
|
fit: BoxFit.cover,
|
|
),
|
|
),
|
|
),
|
|
ElevatedButton.icon(
|
|
onPressed: _pickImage,
|
|
icon: const Icon(Icons.image),
|
|
label: Text(_imageFile == null ? 'Bild auswählen' : 'Bild ändern'),
|
|
),
|
|
const SizedBox(height: 16),
|
|
DropdownButtonFormField<String>(
|
|
value: _category,
|
|
items: widget.categories
|
|
.map((cat) => DropdownMenuItem(value: cat, child: Text(cat)))
|
|
.toList(),
|
|
onChanged: (v) => setState(() => _category = v),
|
|
decoration: const InputDecoration(labelText: 'Kategorie'),
|
|
validator: (v) => v == null ? 'Kategorie wählen' : null,
|
|
),
|
|
TextFormField(
|
|
decoration: const InputDecoration(labelText: 'Titel'),
|
|
onChanged: (v) => _title = v,
|
|
validator: (v) => v == null || v.isEmpty ? 'Titel angeben' : null,
|
|
),
|
|
TextFormField(
|
|
decoration: const InputDecoration(labelText: 'Beschreibung'),
|
|
onChanged: (v) => _description = v,
|
|
validator: (v) => v == null || v.isEmpty ? 'Beschreibung angeben' : null,
|
|
maxLines: 2,
|
|
),
|
|
TextFormField(
|
|
decoration: const InputDecoration(labelText: 'Dauer (Minuten)'),
|
|
keyboardType: TextInputType.number,
|
|
onChanged: (v) => _duration = int.tryParse(v),
|
|
validator: (v) => v == null || int.tryParse(v) == null ? 'Zahl angeben' : null,
|
|
),
|
|
DropdownButtonFormField<String>(
|
|
value: _year,
|
|
items: _levelCategories
|
|
.map((level) => DropdownMenuItem(value: level, child: Text(level)))
|
|
.toList(),
|
|
onChanged: (v) => setState(() => _year = v),
|
|
decoration: const InputDecoration(labelText: 'Level'),
|
|
validator: (v) => v == null ? 'Level angeben' : null,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
actions: [
|
|
TextButton(
|
|
onPressed: _loading ? null : () => Navigator.pop(context),
|
|
child: const Text('Abbrechen'),
|
|
),
|
|
ElevatedButton(
|
|
onPressed: _loading
|
|
? null
|
|
: () async {
|
|
if (_formKey.currentState!.validate()) {
|
|
setState(() => _loading = true);
|
|
try {
|
|
final imageUrl = await _uploadImage();
|
|
await FirebaseFirestore.instance.collection('Training').add({
|
|
'category': _category,
|
|
'title': _title,
|
|
'description': _description,
|
|
'duration': _duration,
|
|
'picture': imageUrl,
|
|
'rating overall': 0.0,
|
|
'year': _year,
|
|
'ratings': [], // Array für einzelne Bewertungen
|
|
});
|
|
Navigator.pop(context);
|
|
} catch (e) {
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(content: Text('Fehler beim Erstellen: $e')),
|
|
);
|
|
} finally {
|
|
setState(() => _loading = false);
|
|
}
|
|
}
|
|
},
|
|
child: _loading ? const CircularProgressIndicator() : const Text('Erstellen'),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|