import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:url_launcher/url_launcher.dart';

import '../model/ApiAccess.dart';

class StatefulLoginForm extends StatefulWidget {
  const StatefulLoginForm({Key? key}) : super(key: key);

  @override
  State<StatefulLoginForm> createState() => _LoginForm();
}

class _LoginForm extends State<StatefulLoginForm> {
  final Uri getTokenUri = Uri.parse(
      "https://www.jetbrains.com/help/youtrack/incloud/integration-with-gitea.html#enable-youtrack-integration-gitea");
  final tokenController = TextEditingController();
  final instanceController = TextEditingController();
  String instance = "gitea.com";

  late SharedPreferences prefs;


  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    final media = MediaQuery.of(context).size;

    return SingleChildScrollView(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          DropdownButton(
              value: instance,
              items: <String>['gitea.com', 'codeberg.org', 'Other']
                  .map<DropdownMenuItem<String>>((String value) {
                return DropdownMenuItem<String>(
                  value: value,
                  child: Text(value),
                );
              }).toList(),
              onChanged: (String? newValue) {
                setState(() {
                  instance = newValue!;
                });
                instance = newValue!;
                print("New Value: $newValue");
              }),
          if (instance == "Other")
            TextField(
              decoration: const InputDecoration(
                labelText: "Instance URL",
              ),
              controller: instanceController,
            ),
          TextField(
            decoration: const InputDecoration(
              labelText: "Token",
            ),
            controller: tokenController,
            obscureText: true,
          ),
          SizedBox(
              width:
              (media.width > 600) ? media.width * 0.25 : media.width * 0.5,
              child: Container(
                padding: EdgeInsetsDirectional.all(15),
                child: ElevatedButton(
                  child: const Text("Login"),
                  onPressed: () => {
                    Navigator.pushNamed(context, "/loginstatus",
                        arguments: ApiAccess(
                            (instance == "Other")
                                ? instanceController.text
                                : instance,
                            tokenController.text))
                  },
                ),
              )),
          //
          TextButton(
              onPressed: () => {_launchUrl(getTokenUri)},
              child: Text("Need a Token? Find out how to generate one!"))
        ],
      ),
    );
  }
}

void _launchUrl(Uri url) async {
  if (!await launchUrl(url)) throw 'Could not launch $url';
}