import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:libacflutter/Constants.dart';
import 'package:ota_update/ota_update.dart';
import 'package:pokedex/Consts.dart';
import 'package:pokedex/Session.dart';

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

  @override
  State<StatefulWidget> createState() {
    return _UPDCheck();
  }
}

class _UPDCheck extends State<UpdateCheck> {
  Future<void> checkUpdate() async {
    Dio dio = Dio();
    // retrieve the latest version info file.
    var reply = await dio.get(
      "https://git.zontreck.com/zontreck/PokeDex/raw/branch/main/LATEST_VERSION",
    );
    String replyStr = reply.data as String;
    replyStr = replyStr.trim();

    // Check if version mismatch!
    if (replyStr != Constants.VERSION) {
      SessionData.isUpdateAvailable = true;
    } else {
      SessionData.isUpdateAvailable = false;
    }
  }

  @override
  void initState() {
    // Check for updates
    checkUpdate();

    super.initState();
  }

  @override
  void didChangeDependencies() {
    SessionData.callbacks.updateCheckPage = () async {
      setState(() {});
    };

    super.didChangeDependencies();
  }

  @override
  void dispose() {
    SessionData.callbacks.updateCheckPage = null;

    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("PokeDex - Update Checker"),
        backgroundColor: LibACFlutterConstants.TITLEBAR_COLOR,
      ),
      body: Padding(
        padding: EdgeInsetsGeometry.all(8),
        child: SingleChildScrollView(
          child: Column(
            children: [
              ListTile(
                title: Text("Check for updates..."),
                subtitle: Text("Checks for an update immediately."),
                leading: Icon(Icons.update_outlined),
                onTap: () async {
                  await checkUpdate();
                  setState(() {});
                },
              ),

              if (SessionData.isUpdateAvailable)
                ListTile(
                  title: Text("Install Update"),
                  subtitle: Text("Download and install the available update"),
                  leading: Icon(Icons.system_update),
                  onTap: () async {
                    // Do the update!

                    SessionData.isUpdateAvailable = false;
                    setState(() {});

                    OtaUpdate updater = OtaUpdate();
                    updater.execute(
                      "https://ci.zontreck.com/job/Projects/job/Dart/job/PokeDex/job/main/lastSuccessfulBuild/artifact/pokedex.apk",
                      destinationFilename: "pokedex.apk",
                    );
                  },
                ),
              if (!SessionData.isUpdateAvailable)
                ListTile(
                  title: Text("No Available Update"),
                  subtitle: Text(
                    "There is not a update available at this time.",
                  ),
                  leading: Icon(Icons.disabled_by_default),
                  tileColor: LibACFlutterConstants.TITLEBAR_COLOR,
                ),
            ],
          ),
        ),
      ),
    );
  }
}