import 'package:flutter/material.dart';
import 'package:gitea_client/model/user.dart';
import 'package:gitea_client/widget/login_form.dart';
import 'package:gitea_client/widget/login_status.dart';
import 'package:gitea_client/widget/repo_list_page.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'model/ApiAccess.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Gitea Client',
      theme: ThemeData(
        primarySwatch: Colors.lightGreen,
      ),
      home: MyHomePage(),
      routes: {

      },
      onGenerateRoute: (route) {
        switch (route.name) { // <- here
          case "/loginstatus":
            return MaterialPageRoute(
              settings: const RouteSettings(name: "/parameterpage"),
              builder: (context) => StatefulLoginStatus(
                apiAccess: route.arguments as ApiAccess,
              ),
            );
          case "/repolist":
            return MaterialPageRoute(
              settings: const RouteSettings(name: "/repolist"),
              builder: (context) => RepoListPage(savedUser: route.arguments as SavedUser),
            );
        }
        return null;
      },

    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePage createState() => _MyHomePage();
}

class _MyHomePage extends State<MyHomePage> {

  late SharedPreferences prefs;
  ApiAccess? _apiAccess;
  var loggedIn = false;


  void _autoLogin() async {
    prefs = await SharedPreferences.getInstance();
    final token = prefs.getString("token");
    final instance = prefs.getString("instance");
    if(token != null && instance != null) {
      await prefs.setBool("autoLogin", true);
      setState(() {
        loggedIn = true;
        _apiAccess = ApiAccess(instance, token);
      });

      print("Auto login");
    }
  }

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

  @override
  Widget build(BuildContext context) {
    return (loggedIn) ? StatefulLoginStatus(apiAccess: _apiAccess!) : const LoginPage(title: "Login to Gitea");
  }

}


class LoginPage extends StatelessWidget {
  const LoginPage({Key? key, required this.title}) : super(key: key);

  final String title;

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

    return Scaffold(
        appBar: AppBar(
          title: Text(title),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Text("Login to Gitea",
                  style: Theme.of(context).textTheme.headline4),
              SizedBox(
                width:
                    (media.width > 600) ? media.width * 0.5 : media.width * 0.9,
                child: const StatefulLoginForm(),
              )
            ],
          ),
        ));
  }
}