import 'dart:convert';
// import 'package:crab_ui/api_service.dart';
import 'package:go_router/go_router.dart';

import 'api_service.dart';
// import 'home_page.dart';
import 'package:flutter/material.dart';
// import 'package:flutter_widget_from_html/flutter_widget_from_html.dart';
import 'package:http/http.dart' as http;
// import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter/services.dart' show rootBundle;

class AuthService extends ChangeNotifier {
  Future<bool> isUserLoggedIn() async {
    // ApiService.ip = '127.0.0.1';
    // ApiService.port = '3001';
    // print("setted up");

    // return true;
    try {
      final response =
          await http.get(Uri.http('127.0.0.1:6767', 'login_check'));

      print(response.statusCode);
      print(response.body);
      if (response.statusCode == 200) {
        final data = jsonDecode(response.body);
        // print(data['state']);
        // return true;
        try {
          var url = Uri.http('${data['ip']}:${data['port']}', 'is_logged_in');
          var response = await http.get(url);
          print(response.body);
          if (response.statusCode == 200) {
            print('all good in the east!');
            String jsonOuter = jsonDecode(response.body);
            Map<String, dynamic> json = jsonDecode(jsonOuter);
            // print(json["is_logged_in"]);
            ApiService.ip = data['ip'];
            print("setting ip " + ApiService.ip);
            ApiService.port = data['port'];
            print("setting port " + data['port']);
            return json["is_logged_in"];
          }
        } catch (er) {
          print(er);
        }
      }
    } catch (e) {
      print('caughtther');
      print(e);
    }
    return false;
  }

  Future<String> readConfFile() async {
    final content = await rootBundle.loadString('/crabmail.conf');
    return content;
  }

  Map<String, String> parseConfFile(String content) {
    final Map<String, String> config = {};
    final lines = content.split('\n');

    for (var line in lines) {
      line = line.trim();
      if (line.isEmpty || line.startsWith('#')) continue;

      final parts = line.split('=');
      if (parts.length == 2) {
        final key = parts[0].trim();
        final value = parts[1].trim();
        config[key] = value;
      }
    }
    return config;
  }

  Future<bool> loginUser(String email, String password) async {
    try {} catch (e) {}
    return false;
  }
}

class LoginPage extends StatefulWidget {
  const LoginPage({super.key});

  @override
  _LoginPageState createState() => _LoginPageState();
}

class SplashScreen extends StatefulWidget {
  //entry point
  @override
  _SplashScreenState createState() => _SplashScreenState();
}

class _SplashScreenState extends State<SplashScreen> {
  final AuthService _authService = AuthService();
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      _checkLoginStatus();
    });
  }

  Future<void> _checkLoginStatus() async {
    try {
      final response =
          await http.get(Uri.parse('http://127.0.0.1:6767/login_check'));
      print(response.statusCode);
      print(response.body);
      if (response.statusCode == 200) {
        final data = jsonDecode(response.body);
        print(data['state']);
        if (data['state']) {
          context.go("/home");
        } else {
          context.go("/login");
        }
      } else {
        context.go("/login");
      }
    } catch (e) {
      print("caught in checkloginstatus in login $e");
      context.go("/login");
    }
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Scaffold(
        body: Center(child: CircularProgressIndicator()), //nothing happens
      ),
    );
  }
}

class _LoginPageState extends State<LoginPage> {
  final AuthService _authService = AuthService();
  // Controllers for capturing user input
  final TextEditingController _ipController = TextEditingController();
  final TextEditingController _portController = TextEditingController();
  final TextEditingController _emailController = TextEditingController();
  final TextEditingController _passwordController = TextEditingController();

  final _formKey = GlobalKey<FormState>();

  Future<bool> setIp(String ip) async {
    //this is not done :sob: :skull:
    return false;
  }

  Future<bool> setPort(String port) async {
    return false;
  }

  Future<void> login() async {
    var result = await _handleLogin();
    if (result[0]) {
      ApiService.ip = result[1];
      ApiService.port = result[2];
      context.go('/home');
    }
  }

  // Function to handle login action
  Future<List> _handleLogin() async {
    if (_formKey.currentState!.validate()) {
      // Perform login action (e.g., authenticate with backend)
      String ip = _ipController.text;
      String port = _portController.text;
      String email = _emailController.text;
      String password = _passwordController.text;

      // For demonstration, just print the values
      print('Email: $email');
      print('Password: $password');
      print(ip);
      print(port);

      try {
        Map<String, String> requestBody = {
          "user": email,
          "password": password,
          "ip": ip,
          "port": port,
        };
        var url = Uri.http("$ip:6767", "login");

        final response = await http.post(url,
            headers: {
              'Content-Type': 'application/json',
            },
            body: jsonEncode(
                requestBody)); //keep the port but change the ip to the server that will process it?
        print(response.statusCode);
        print(response.body);
        if (response.statusCode == 200) {
          final data = jsonDecode(response.body);
          if (data["state"] == true) {
            try {
              final response = await http
                  .get(Uri.parse('http://127.0.0.1:6767/login_check'));
              print(response.statusCode);
              print(response.body);
              if (response.statusCode == 200) {
                final data = jsonDecode(response.body);
                print(data['state']);
                if (data['state']) {
                  context.go("/home");
                } else {
                  context.go("/login");
                }
              } else {
                context.go("/login");
              }
            } catch (e) {
              print("caught in checkloginstatus in login $e");
              context.go("/login");
            }
          }
          return [true, ip, port];
        }
        return [false];
      } catch (e) {
        print("caught in catch");
        print(e);
        return [false];
      }
    }
    return [false];
  }

  @override
  Widget build(BuildContext context) {
    _ipController.text = "127.0.0.1";
    _portController.text = "3001";

    return Center(
      child: Scaffold(
        appBar: AppBar(
          title: const Text('Login Page'),
        ),
        body: Center(
          child: SingleChildScrollView(
            padding: const EdgeInsets.all(16.0),
            child: Form(
              key: _formKey,
              child: Align(
                alignment: Alignment.center,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text('Sign in to your email'),
                    SizedBox(
                      height: 5,
                    ),
                    Container(
                      width: 200,
                      child: TextFormField(
                        controller: _ipController,
                        decoration: const InputDecoration(
                          labelText: "IP",
                          hintText: 'Enter your IP for the backend',
                          helperMaxLines: 1,
                        ),
                        validator: (value) {
                          if (value == null || value.isEmpty) {
                            return 'Please enter your ip';
                          }
                        },
                      ),
                    ),
                    Container(
                      width: 200,
                      child: TextFormField(
                        controller: _portController,
                        decoration: const InputDecoration(
                          labelText: "Port",
                          hintText: 'Enter the port',
                          helperMaxLines: 1,
                        ),
                        validator: (value) {
                          if (value == null || value.isEmpty) {
                            return 'Please enter your port';
                          }
                          return null;
                        },
                        onSaved: (value) {
                          //TODO: call a function to set the field port in conf
                        },
                      ),
                    ),
                    // Email Field
                    Container(
                      width: 200,
                      child: TextFormField(
                        controller: _emailController,
                        decoration: const InputDecoration(
                          labelText: 'Email',
                          hintText: 'Enter your email',
                          helperMaxLines: 1,
                        ),
                        validator: (value) {
                          // Simple email validation
                          if (value == null || value.isEmpty) {
                            return 'Please enter your email';
                          }
                          if (!RegExp(r'^\S+@\S+\.\S+$').hasMatch(value)) {
                            // print(value);
                            return 'Please enter a valid email address';
                          }
                          return null;
                        },
                      ),
                    ),
                    const SizedBox(height: 16.0),
                    // Password Field
                    Container(
                      width: 200,
                      child: TextFormField(
                        controller: _passwordController,
                        decoration: const InputDecoration(
                          labelText: 'Password',
                          hintText: 'Enter your password',
                        ),
                        obscureText: true, // Hide the password text
                        autofillHints: null,
                        validator: (value) {
                          // Simple password validation
                          if (value == null || value.isEmpty) {
                            return 'Please enter your password';
                          }
                          if (value.length < 6) {
                            return 'Password must be at least 6 characters long';
                          }
                          return null;
                        },
                      ),
                    ),
                    const SizedBox(height: 32.0),
                    // Login Button
                    SizedBox(
                      width: 200,
                      child: ElevatedButton(
                        onPressed: login,
                        child: const Text('Login'),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}