197 lines
6.4 KiB
Dart
197 lines
6.4 KiB
Dart
import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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/// Página para visualizar os alunos de uma turma específica
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class ClassStudentsPage extends StatelessWidget {
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final String classId;
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final String className;
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const ClassStudentsPage({
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super.key,
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required this.classId,
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required this.className,
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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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backgroundColor: const Color(0xFFF8F9FA),
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appBar: AppBar(
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backgroundColor: const Color(0xFF82C9BD),
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elevation: 0,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back, color: Colors.white),
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onPressed: () => Navigator.of(context).pop(),
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),
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title: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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className,
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style: const TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const Text(
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'Alunos Matriculados',
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style: TextStyle(
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color: Colors.white70,
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fontSize: 13,
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fontWeight: FontWeight.w300,
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),
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),
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],
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),
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),
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body: StreamBuilder<QuerySnapshot>(
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stream: FirebaseFirestore.instance
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.collection('enrollments')
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.where('classId', isEqualTo: classId)
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.orderBy('joinedAt', descending: true)
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.snapshots(),
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.waiting) {
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return const Center(
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child: CircularProgressIndicator(
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color: Color(0xFF82C9BD),
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),
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);
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}
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if (snapshot.hasError) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.error_outline,
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size: 48,
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color: Colors.grey[400],
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),
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const SizedBox(height: 16),
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Text(
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'Erro ao carregar alunos',
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style: TextStyle(
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color: Colors.grey[600],
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fontSize: 16,
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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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final enrollments = snapshot.data?.docs ?? [];
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if (enrollments.isEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.people_outline,
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size: 64,
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color: Colors.grey[300],
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),
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const SizedBox(height: 24),
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Text(
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'Nenhum aluno entrou nesta turma ainda.',
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style: TextStyle(
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color: Colors.grey[600],
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fontSize: 16,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 8),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32.0),
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child: Text(
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'Partilha o código da turma para os alunos se juntarem.',
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style: TextStyle(
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color: Colors.grey[500],
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fontSize: 13,
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),
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textAlign: TextAlign.center,
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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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return ListView.builder(
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padding: const EdgeInsets.all(16.0),
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itemCount: enrollments.length,
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itemBuilder: (context, index) {
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final enrollment = enrollments[index].data() as Map<String, dynamic>;
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final studentName = enrollment['studentName'] as String? ?? 'Aluno sem nome';
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final joinedAt = enrollment['joinedAt'] as Timestamp?;
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return Container(
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margin: const EdgeInsets.only(bottom: 12.0),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16.0),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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offset: const Offset(0, 4),
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),
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],
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),
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child: ListTile(
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contentPadding: const EdgeInsets.all(16.0),
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leading: Container(
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width: 48,
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height: 48,
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decoration: BoxDecoration(
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color: const Color(0xFF82C9BD).withOpacity(0.1),
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borderRadius: BorderRadius.circular(12.0),
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),
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child: const Icon(
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Icons.person,
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color: Color(0xFF82C9BD),
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size: 24,
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),
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),
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title: Text(
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studentName,
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style: const TextStyle(
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color: Color(0xFF2D3748),
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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subtitle: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(height: 4),
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Text(
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joinedAt != null
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? 'Entrou em ${_formatDate(joinedAt.toDate())}'
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: 'Data desconhecida',
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style: TextStyle(
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color: Colors.grey[600],
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fontSize: 13,
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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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String _formatDate(DateTime date) {
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return DateFormat('dd/MM/yyyy').format(date);
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}
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}
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