tuuli_app/lib/pages/login_page.dart

import 'dart:async';

import 'package:animated_background/animated_background.dart';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:tuuli_api/tuuli_api.dart';
import 'package:tuuli_app/api_controller.dart';

class LoginPageController extends GetxController {
  final _login = "".obs;
  String get login => _login.value;
  set login(String value) => _login.value = value;

  final _password = "".obs;
  String get password => _password.value;
  set password(String value) => _password.value = value;

  final _submitted = false.obs;
  bool get submitted => _submitted.value;
  set submitted(bool value) => _submitted.value = value;

  bool get isFormValid => login.isNotEmpty && password.isNotEmpty;

  Future<void> submitForm() async {
    submitted = true;
    if (isFormValid) {
      final amb = AuthModelBuilder()
        ..username = login
        ..password = password;

      try {
        final resp = await ApiController.to.apiClient
            .getAccessTokenApiGetAccessTokenPost(authModel: amb.build());

        final respData = resp.data;
        if (resp.statusCode == 200 && respData != null) {
          final accessToken = respData.accessToken;
          Get.find<ApiController>().token = accessToken;
          WidgetsBinding.instance.addPostFrameCallback((_) {
            Get.offAllNamed("/home");
          });
        } else {
          Get.snackbar(
            "Login failed",
            resp.statusMessage ?? "Unknown error",
          );
        }
      } on DioError catch (e) {
        final errorData = e.response?.data;
        if (errorData != null) {
          final error = errorData["error"];
          if (error != null) {
            Get.snackbar(
              "Login failed",
              "$error",
            );
          }
        } else {
          Get.snackbar(
            "Login failed",
            "$e",
          );
        }
      } catch (e) {
        Get.snackbar(
          "Login failed",
          "$e",
        );
      }
    }
    submitted = false;
  }
}

class LoginPage extends GetView<LoginPageController> {
  const LoginPage({super.key});

  @override
  Widget build(BuildContext context) {
    final screenSize = Get.mediaQuery.size;
    final formWidth = screenSize.width <= 600 ? screenSize.width : 300.0;
    return Scaffold(
      body: Stack(
        children: [
          const SizedBox.square(
            dimension: 0,
          ),
          Row(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              LimitedBox(
                maxWidth: formWidth,
                child: Obx(
                  () => Container(
                    color: Colors.black.withAlpha(100),
                    padding: const EdgeInsets.all(16),
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.center,
                      mainAxisSize: MainAxisSize.min,
                      crossAxisAlignment: CrossAxisAlignment.stretch,
                      children: [
                        TextFormField(
                          enabled: !controller.submitted,
                          decoration: const InputDecoration(
                            labelText: 'Login',
                            hintText: 'Enter your login',
                          ),
                          onChanged: (value) => controller.login = value,
                          validator: (value) {
                            if (value == null || value.isEmpty) {
                              return 'Please enter your Login';
                            }
                            return null;
                          },
                        ),
                        TextFormField(
                          obscureText: true,
                          enabled: !controller.submitted,
                          decoration: const InputDecoration(
                            labelText: 'Password',
                            hintText: 'Enter your password',
                          ),
                          onChanged: (value) => controller.password = value,
                          validator: (value) {
                            if (value == null || value.isEmpty) {
                              return 'Please enter your password';
                            }
                            return null;
                          },
                        ),
                        const SizedBox(height: 16),
                        ElevatedButton(
                          onPressed: controller.submitted
                              ? null
                              : () => controller.submitForm(),
                          child: const Text('Login'),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }
}
/*
class LoginPage extends StatefulWidget {
  const LoginPage({super.key});

  @override
  State<StatefulWidget> createState() => _LoginPageState();
}

class _LoginPageState extends State<LoginPage> with TickerProviderStateMixin {
  final _formKey = GlobalKey<FormState>();

  final apiClient = Get.find<ApiClient>();
  var submitted = false;

  final loginPageController = TextEditingController();
  final passwordController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    final screenSize = MediaQuery.of(context).size;
    final formWidth = screenSize.width <= 600 ? screenSize.width : 300.0;
    return Scaffold(
      body: Stack(
        children: [
          AnimatedBackground(
            behaviour: RandomParticleBehaviour(),
            vsync: this,
            child: const SizedBox.square(
              dimension: 0,
            ),
          ),
          Row(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              LimitedBox(
                maxWidth: formWidth,
                child: Container(
                  color: Colors.black.withAlpha(100),
                  padding: const EdgeInsets.all(16),
                  child: Form(
                    key: _formKey,
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.center,
                      mainAxisSize: MainAxisSize.min,
                      crossAxisAlignment: CrossAxisAlignment.stretch,
                      children: [
                        TextFormField(
                          controller: loginPageController,
                          enabled: !submitted,
                          decoration: const InputDecoration(
                            labelText: 'Login',
                            hintText: 'Enter your login',
                          ),
                          validator: (value) {
                            if (value == null || value.isEmpty) {
                              return 'Please enter your Login';
                            }
                            return null;
                          },
                        ),
                        TextFormField(
                          controller: passwordController,
                          obscureText: true,
                          enabled: !submitted,
                          decoration: const InputDecoration(
                            labelText: 'Password',
                            hintText: 'Enter your password',
                          ),
                          validator: (value) {
                            if (value == null || value.isEmpty) {
                              return 'Please enter your password';
                            }
                            return null;
                          },
                        ),
                        const SizedBox(height: 16),
                        ElevatedButton(
                          onPressed: submitted ? null : _submit,
                          child: const Text('Login'),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  Future<void> _submit() async {
    if (!_formKey.currentState!.validate()) {
      return;
    }

    setState(() {
      submitted = true;
    });
    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(
        content: Text('Trying to login...'),
      ),
    );

    final response = await apiClient.login(
      loginPageController.text.trim(),
      passwordController.text.trim(),
    );
    response.unfold((data) {
      ScaffoldMessenger.of(context).hideCurrentSnackBar();
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(
          content: Text('Login successful'),
        ),
      );
      apiClient.setAccessToken(data.accessToken);
      GetStorage()
          .write("accessToken", data.accessToken)
          .then((value) => GetStorage().save())
          .then((value) {
        Timer(1.seconds, () {
          ScaffoldMessenger.of(context).hideCurrentSnackBar();
          WidgetsBinding.instance.addPostFrameCallback((_) {
            Get.offAllNamed("/home");
          });
        });
      });
    }, (error) {
      ScaffoldMessenger.of(context).hideCurrentSnackBar();
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text(error.toString()),
        ),
      );
      setState(() {
        submitted = false;
      });
    });
  }
}
*/