import 'package:flutter/material.dart';
import 'CourseStatus.dart';
import 'University.dart';
import 'student.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'University App',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: UniversityScreen(),
    );
  }
}

class UniversityScreen extends StatefulWidget {
  @override
  _UniversityScreenState createState() => _UniversityScreenState();
}

class _UniversityScreenState extends State<UniversityScreen> {
  final University university = University();
  final TextEditingController nameController = TextEditingController();
  final TextEditingController ageController = TextEditingController();
  List<String> selectedCourses = [];

  void _addStudent() {
    String name = nameController.text;
    int age = int.tryParse(ageController.text) ?? 0;

    if (name.isNotEmpty && age > 0 && selectedCourses.isNotEmpty) {
      setState(() {
        // Создаем новый список курсов для каждого студента
        List<String> studentCourses = List.from(selectedCourses);
        university.addStudent(Student(name, age, studentCourses));
        nameController.clear();
        ageController.clear();
        selectedCourses.clear();
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Строев Владимир, ПИбд-32'),
      ),
      body: Column(
        children: [
          Padding(
            padding: const EdgeInsets.all(8.0),
            child: Column(
              children: [
                Text('Университет', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
                SizedBox(height: 20),
                TextField(
                  controller: nameController,
                  decoration: InputDecoration(labelText: 'Name'),
                ),
                TextField(
                  controller: ageController,
                  decoration: InputDecoration(labelText: 'Age'),
                  keyboardType: TextInputType.number,
                ),
                DropdownButton<String>(
                  value: selectedCourses.isNotEmpty ? selectedCourses.first : null,
                  hint: Text('Select Courses'),
                  onChanged: (String? newValue) {
                    setState(() {
                      if (newValue != null && !selectedCourses.contains(newValue)) {
                        selectedCourses.add(newValue);
                      }
                    });
                  },
                  items: CourseStatus.values.map<DropdownMenuItem<String>>((CourseStatus value) {
                    return DropdownMenuItem<String>(
                      value: value.name,
                      child: Text(value.name),
                    );
                  }).toList(),
                ),
                Wrap(
                  spacing: 8.0,
                  children: selectedCourses.map((course) {
                    return Chip(
                      label: Text(course),
                      onDeleted: () {
                        setState(() {
                          selectedCourses.remove(course);
                        });
                      },
                    );
                  }).toList(),
                ),
                ElevatedButton(
                  onPressed: _addStudent,
                  child: Text('Add Student'),
                ),
              ],
            ),
          ),
          Expanded(
            child: ListView.builder(
              itemCount: university.students.length,
              itemBuilder: (context, index) {
                Student student = university.students[index];
                return ListTile(
                  title: Text(student.name),
                  subtitle: Text('Age: ${student.age}, Courses: ${student.courses.join(", ")}'),
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}