feat(statistics): completely implement user's statistics (#12)

* chore: implement RPC for statistics feature

* implement statictics_service, statistics_viewmodel, change sample data to real data in DailyProgressCard

* feat(statistics): debug and test with real data

* update supabase migration

* completely implement feature statistics

* add supabase migrations

Author: tqha1011

src/lib/core/enum/TaskStatus.dart

@@ -0,0 +1,15 @@
+enum TaskStatus {
+  toDo(0),
+  completed(1),
+  overDue(2);
+
+  final int value;
+  const TaskStatus(this.value);
+
+  factory TaskStatus.fromInt(int dbValue){
+    return TaskStatus.values.firstWhere(
+        (status) => status.value == dbValue,
+        orElse: () => TaskStatus.toDo,
+    );
+  }
+}

src/lib/features/auth/forgot_password_view.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/material.dart';
+import '../../core/theme/app_colors.dart';
+import '../../core/theme/auth_layout_template.dart';
+import '../../core/theme/custom_text_field.dart';
+import '../../viewmodels/auth_viewmodels.dart';
+import 'otp_verification_view.dart';
+
+class ForgotPasswordView extends StatefulWidget {
+  const ForgotPasswordView({super.key});
+
+  @override
+  State<ForgotPasswordView> createState() => _ForgotPasswordViewState();
+}
+
+class _ForgotPasswordViewState extends State<ForgotPasswordView> {
+  final _vm = ForgotPassViewModel();
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _vm,
+      builder: (context, _) => AuthLayoutTemplate(
+        title: 'Quên mật khẩu?',
+        subtitle: 'Nhập email của bạn để nhận mã xác thực',
+        submitText: 'Gửi mã',
+        useCard: false,
+        isLoading: _vm.isLoading,
+        customHeaderIcon: Container(
+          width: 120,
+          height: 120,
+          decoration: const BoxDecoration(
+            color: AppColors.white,
+            shape: BoxShape.circle,
+            boxShadow: [BoxShadow(color: Color(0xFFD1D9E6), blurRadius: 16)],
+          ),
+          child: const Icon(
+            Icons.lock_reset,
+            size: 64,
+            color: AppColors.primary,
+          ),
+        ),
+        onSubmit: () async {
+          FocusScope.of(context).unfocus();
+          final success = await _vm.sendCode();
+          if (!context.mounted) return;
+
+          if (success) {
+            // Jump to Step 2: OTP
+            Navigator.push(
+              context,
+              MaterialPageRoute(builder: (_) => const OtpVerificationView()),
+            );
+          } else {
+            ScaffoldMessenger.of(context).showSnackBar(
+              const SnackBar(
+                content: Text('Vui lòng nhập email hợp lệ!'),
+                backgroundColor: AppColors.error,
+              ),
+            );
+          }
+        },
+        formContent: CustomTextField(
+          label: 'Địa chỉ Email',
+          hint: '[email protected]',
+          icon: Icons.mail,
+          controller: _vm.emailCtrl,
+        ),
+        footerContent: const Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.help, size: 16, color: AppColors.primary),
+            SizedBox(width: 4),
+            Text(
+              'Cần hỗ trợ? Liên hệ CSKH',
+              style: TextStyle(
+                color: AppColors.textSecondary,
+                fontSize: 12,
+                fontWeight: FontWeight.bold,
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

src/lib/features/auth/login_view.dart

@@ -0,0 +1,124 @@
+import 'package:flutter/material.dart';
+import '../../core/theme/app_colors.dart';
+import '../../core/theme/auth_layout_template.dart';
+import '../../core/theme/custom_text_field.dart';
+import '../../viewmodels/auth_viewmodels.dart';
+import 'register_view.dart';
+import 'forgot_password_view.dart';
+
+class LoginView extends StatefulWidget {
+  const LoginView({super.key});
+
+  @override
+  State<LoginView> createState() => _LoginViewState();
+}
+
+class _LoginViewState extends State<LoginView> {
+  final _vm = LoginViewModel();
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _vm,
+      builder: (context, _) =>
+          AuthLayoutTemplate(
+            title: 'Task Management',
+            subtitle: 'Chào mừng trở lại!',
+            submitText: 'Đăng nhập',
+            isLoading: _vm.isLoading,
+            showSocial: true,
+            onSubmit: () async {
+              FocusScope.of(context).unfocus(); // Hide keyboard
+              final success = await _vm.login();
+              if (!context.mounted) return;
+
+              if (success) {
+                ScaffoldMessenger.of(context).showSnackBar(
+                  const SnackBar(
+                    content: Text('Đăng nhập thành công!'),
+                    backgroundColor: AppColors.success,
+                  ),
+                );
+                // TODO: Navigator.pushReplacementNamed(context, '/home');
+              } else {
+                ScaffoldMessenger.of(context).showSnackBar(
+                  const SnackBar(
+                    content: Text('Vui lòng điền đầy đủ thông tin!'),
+                    backgroundColor: AppColors.error,
+                  ),
+                );
+              }
+            },
+            formContent: Column(
+              crossAxisAlignment: CrossAxisAlignment.end,
+              children: [
+                CustomTextField(
+                  label: 'Email',
+                  hint: '[email protected]',
+                  icon: Icons.mail,
+                  controller: _vm.emailCtrl,
+                ),
+                CustomTextField(
+                  label: 'Mật khẩu',
+                  hint: '••••••••',
+                  icon: Icons.lock,
+                  controller: _vm.passCtrl,
+                  isPassword: true,
+                  obscureText: _vm.obscurePass,
+                  onToggleVisibility: _vm.togglePass,
+                ),
+                TextButton(
+                  onPressed: () =>
+                      Navigator.push(
+                        context,
+                        MaterialPageRoute(
+                            builder: (_) => const ForgotPasswordView()),
+                      ),
+                  child: const Text(
+                    'Quên mật khẩu?',
+                    style: TextStyle(
+                      color: AppColors.primary,
+                      fontWeight: FontWeight.bold,
+                    ),
+                  ),
+                ),
+              ],
+            ),
+            footerContent: _buildFooter(
+                'Chưa có tài khoản? ', 'Đăng ký ngay', () {
+              Navigator.push(
+                context,
+                MaterialPageRoute(builder: (_) => const RegisterView()),
+              );
+            }),
+          ),
+    );
+  }
+
+  Widget _buildFooter(String text, String action, VoidCallback onTap) {
+    return Padding(
+      // Position this block 24dp above the bottom of the screen
+      padding: const EdgeInsets.only(bottom: 24.0),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Text(text, style: const TextStyle(color: Colors.grey, fontSize: 16)),
+
+          TextButton(
+            onPressed: onTap,
+            style: TextButton.styleFrom(
+              padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 12),
+              minimumSize: const Size(50, 48),
+            ),
+            child: Text(
+              action,
+              style: const TextStyle(color: Color(0xFF5A8DF3),
+                  fontWeight: FontWeight.bold,
+                  fontSize: 16),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}