Obtainium/lib/pages/add_app.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:obtainium/components/custom_app_bar.dart';
import 'package:obtainium/pages/app.dart';
import 'package:obtainium/providers/apps_provider.dart';
import 'package:obtainium/providers/settings_provider.dart';
import 'package:obtainium/providers/source_provider.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher_string.dart';

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

  @override
  State<AddAppPage> createState() => _AddAppPageState();
}

class _AddAppPageState extends State<AddAppPage> {
  final _formKey = GlobalKey<FormState>();
  final urlInputController = TextEditingController();
  bool gettingAppInfo = false;

  @override
  Widget build(BuildContext context) {
    SourceProvider sourceProvider = SourceProvider();
    return Scaffold(
        backgroundColor: Theme.of(context).colorScheme.surface,
        body: CustomScrollView(slivers: <Widget>[
          const CustomAppBar(title: 'Add App'),
          SliverFillRemaining(
              hasScrollBody: false,
              child: Center(
                child: Form(
                    key: _formKey,
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      crossAxisAlignment: CrossAxisAlignment.stretch,
                      children: [
                        Container(),
                        Padding(
                          padding: const EdgeInsets.all(16),
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.stretch,
                            children: [
                              TextFormField(
                                decoration: const InputDecoration(
                                    hintText:
                                        'https://github.com/Author/Project',
                                    helperText: 'Enter the App source URL'),
                                controller: urlInputController,
                                validator: (value) {
                                  if (value == null ||
                                      value.isEmpty ||
                                      Uri.tryParse(value) == null) {
                                    return 'Please enter a supported source URL';
                                  }
                                  return null;
                                },
                              ),
                              Padding(
                                padding:
                                    const EdgeInsets.symmetric(vertical: 16.0),
                                child: ElevatedButton(
                                  onPressed: gettingAppInfo
                                      ? null
                                      : () {
                                          HapticFeedback.selectionClick();
                                          if (_formKey.currentState!
                                              .validate()) {
                                            setState(() {
                                              gettingAppInfo = true;
                                            });
                                            sourceProvider
                                                .getApp(urlInputController
                                                    .value.text)
                                                .then((app) {
                                              var appsProvider =
                                                  context.read<AppsProvider>();
                                              var settingsProvider = context
                                                  .read<SettingsProvider>();
                                              if (appsProvider.apps
                                                  .containsKey(app.id)) {
                                                throw 'App already added';
                                              }
                                              settingsProvider
                                                  .getInstallPermission()
                                                  .then((_) {
                                                appsProvider
                                                    .saveApp(app)
                                                    .then((_) {
                                                  urlInputController.clear();
                                                  Navigator.push(
                                                      context,
                                                      MaterialPageRoute(
                                                          builder: (context) =>
                                                              AppPage(
                                                                  appId:
                                                                      app.id)));
                                                });
                                              });
                                            }).catchError((e) {
                                              ScaffoldMessenger.of(context)
                                                  .showSnackBar(
                                                SnackBar(
                                                    content:
                                                        Text(e.toString())),
                                              );
                                            }).whenComplete(() {
                                              setState(() {
                                                gettingAppInfo = false;
                                              });
                                            });
                                          }
                                        },
                                  child: const Text('Add'),
                                ),
                              ),
                            ],
                          ),
                        ),
                        Column(
                            crossAxisAlignment: CrossAxisAlignment.center,
                            children: [
                              const Text(
                                'Supported Sources:',
                                // style: TextStyle(fontWeight: FontWeight.bold),
                                // style: Theme.of(context).textTheme.bodySmall,
                              ),
                              const SizedBox(
                                height: 8,
                              ),
                              ...sourceProvider
                                  .getSourceHosts()
                                  .map((e) => GestureDetector(
                                      onTap: () {
                                        launchUrlString('https://$e',
                                            mode:
                                                LaunchMode.externalApplication);
                                      },
                                      child: Text(
                                        e,
                                        style: const TextStyle(
                                            decoration:
                                                TextDecoration.underline,
                                            fontStyle: FontStyle.italic),
                                      )))
                                  .toList()
                            ]),
                        if (gettingAppInfo)
                          const LinearProgressIndicator()
                        else
                          Container(),
                      ],
                    )),
              ))
        ]));
  }
}