import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:toastification/toastification.dart';
import '../../app/route.dart';

import '../../app/constant.dart';
import '../../provider/current_user_provider.dart';
import 'login_provider.dart';

class LoginScreen extends HookConsumerWidget {
  const LoginScreen({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: [
      SystemUiOverlay.bottom,
    ]);

    final usernameCtr = useTextEditingController(
      text: "",
    );

    final passwordCtr = useTextEditingController(
      text: "",
    );

    final hostCtr = useTextEditingController(
      text: "",
    );

    final isLoading = useState(false);
    final isSuccess = useState(false);

    ToastificationItem? toastItem;

    void showLongToast(
      String title,
      String message,
      String typeToast,
      Duration waktu,
    ) {
      if (typeToast == "success") {
        toastItem = toastification.show(
          context: context,
          title: Text(title),
          description: Text(message),
          autoCloseDuration: waktu,
          type: ToastificationType.success,
        );
      } else if (typeToast == "error") {
        toastItem = toastification.show(
          context: context,
          title: Text(title),
          description: Text(message),
          autoCloseDuration: waktu,
          type: ToastificationType.error,
          style: ToastificationStyle.fillColored,
        );
      }
    }

    void hideToast() {
      if (toastItem != null) {
        toastification.dismissAll();
      }
    }

    // proses login
    ref.listen(loginProvider, (prev, next) {
      if (next is LoginStateLoading) {
        isLoading.value = true;
      } else if (next is LoginStateError) {
        isLoading.value = false;
        // errorMessage.value = next.message;
        showLongToast(
          'Error',
          next.message,
          'error',
          Duration(seconds: 3),
        );
      } else if (next is LoginStateDone) {
        hideToast();
        isLoading.value = false;
        isSuccess.value = true;
        ref.read(currentUserProvider.notifier).state = next.model;
        Navigator.of(context)
            .pushNamedAndRemoveUntil(homeRoute, (route) => false);
      }
    });

    void login() {
      if (usernameCtr.text.isEmpty ||
          passwordCtr.text.isEmpty ||
          hostCtr.text.isEmpty) {
        showLongToast(
          'Error',
          'Inputan wajib diisi',
          'error',
          Duration(seconds: 3),
        );
      } else {
        // print('proses login');
        ref.read(loginProvider.notifier).login(
              username: usernameCtr.text,
              host: hostCtr.text,
              password: passwordCtr.text,
            );
      }
    }

    return GestureDetector(
      onTap: () {
        FocusManager.instance.primaryFocus!.unfocus();
      },
      child: Scaffold(
        resizeToAvoidBottomInset: true,
        backgroundColor: Constant.textWhite,
        body: SingleChildScrollView(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // atas
              Image.asset(
                'images/vektoratas.png',
                width: double.infinity,
                fit: BoxFit.cover,
              ),

              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 40,
                ),
              ),
              // konten didalamnya
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: Text(
                  'Selamat Datang',
                  style: Constant.title_700(context: context).copyWith(
                    color: Constant.textBlack,
                  ),
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: Text(
                  'Silahkan masuk untuk mengakses akun Anda',
                  style: Constant.title_400(context: context).copyWith(
                    color: Constant.textBlack,
                  ),
                ),
              ),

              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 64,
                ),
              ),

              // inputan
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: Text(
                  'Username',
                  style: Constant.title_400(context: context).copyWith(
                    color: Constant.inputanGrey,
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 16,
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: TextField(
                  controller: usernameCtr,
                  decoration: InputDecoration(
                    hintText: "Masukkan Username",
                    enabledBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.grey,
                        width: 1,
                      ),
                    ),
                    focusedBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.blue,
                        width: 2,
                      ),
                    ),
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 20,
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: Text(
                  'Password',
                  style: Constant.title_400(context: context).copyWith(
                    color: Constant.inputanGrey,
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 16,
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: TextField(
                  controller: passwordCtr,
                  obscureText: true,
                  decoration: InputDecoration(
                    hintText: "Masukkan Password",
                    enabledBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.grey,
                        width: 1,
                      ),
                    ),
                    focusedBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.blue,
                        width: 2,
                      ),
                    ),
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 20,
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: Text(
                  'Host',
                  style: Constant.title_400(context: context).copyWith(
                    color: Constant.inputanGrey,
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 16,
                ),
              ),
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: TextField(
                  controller: hostCtr,
                  decoration: InputDecoration(
                    hintText: "Masukkan Host",
                    enabledBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.grey,
                        width: 1,
                      ),
                    ),
                    focusedBorder: const OutlineInputBorder(
                      borderSide: BorderSide(
                        color: Colors.blue,
                        width: 2,
                      ),
                    ),
                  ),
                ),
              ),
              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 64,
                ),
              ),
              // inputan

              // button login
              Padding(
                padding: EdgeInsets.only(
                  left: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                  right: Constant.getActualXPhone(
                    context: context,
                    x: 20,
                  ),
                ),
                child: SizedBox(
                  width: double.infinity,
                  height: Constant.getActualYPhone(
                    context: context,
                    y: 48,
                  ),
                  child: ElevatedButton(
                    onPressed: () async {
                      (isLoading.value || (isSuccess.value == true))
                          ? null
                          : login();
                    },
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Constant.bgButton,
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(8),
                      ),
                      elevation: 8,
                      shadowColor: Constant.bgButton.withOpacity(0.24),
                    ),
                    child: Text(
                      (isLoading.value) ? 'Loading...' : 'LOGIN',
                      style: Constant.titleButton500(context: context).copyWith(
                        color: Constant.textWhite,
                      ),
                    ),
                  ),
                ),
              ),
              // konten didalamnya

              SizedBox(
                height: Constant.getActualYPhone(
                  context: context,
                  y: 60,
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}