import 'package:android_intent/android_intent.dart';
import 'package:flutter/material.dart';
import 'global_helper_functions.dart';

InkWell aboutApp(BuildContext context) {
  return InkWell(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: <Widget>[
        Text(
          'About',
          style: TextStyle(
            color: candyApple,
          ),
        ),
        Icon(
          Icons.info,
          size: 48.0,
          color: Colors.black,
        ),
      ],
    ),
    onTap: () {
      showDialog(
          context: context,
          builder: (BuildContext context) {
            final double textHeight = 1.5;
            Future<void> _launchLicense() async {
              AndroidIntent intent = AndroidIntent(
                action: 'action_view',
                data: Uri.encodeFull(
                    'https://github.com/TrentSPalmer/libre_gps_parser/blob/master/LICENSE'),
              );
              await intent.launch();
            }

            return AlertDialog(
              backgroundColor: ivory,
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.all(Radius.circular(6.0)),
              ),
              title: Text(
                'Libre Gps Parser',
                textAlign: TextAlign.center,
                style: TextStyle(
                  color: candyApple,
                ),
              ),
              content: Column(
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Flexible(
                    child: SingleChildScrollView(
                      child: Column(
                        mainAxisAlignment: MainAxisAlignment.start,
                        children: <Widget>[
                          Text(
                            'Version: 0.1.4\n',
                            style: TextStyle(
                              color: candyApple,
                            ),
                          ),
                          Text(
                            'Edit: new feature, you can now share a location to Libre Gps Parser from Mapquest for Android.\n\n'
                            'The essence of Libre Gps Parser, is to parse gps coordinates from '
                            'a map link that you share from the Google Maps Application. '
                            'After that you can use the gps coordinates to make api calls for '
                            'weather, elevation, and timezoneoffset.\n\n'
                            'Parsing the gps coordinates is accomplished by getting the Google Map '
                            'link with an http request, and then filtering the raw text result. '
                            'Locally, data is cached in an sqlite database, in order to economize '
                            'network requests.\n\n'
                            'This version of the application requires that you set up an elevation '
                            'api server, and provide an openweathermap api key. '
                            'Or you can disable elevation and weather in settings.'
                            '',
                          ),
                          Container(
                            margin: EdgeInsets.only(
                              top: 40,
                              bottom: 10,
                            ),
                            child: Wrap(
                              runSpacing: 30,
                              alignment: WrapAlignment.center,
                              children: <Widget>[
                                Container(
                                  margin: EdgeInsets.symmetric(
                                    horizontal: 15,
                                  ),
                                  child: ButtonTheme(
                                    shape: RoundedRectangleBorder(
                                      borderRadius: BorderRadius.all(
                                          Radius.circular(6.0)),
                                    ),
                                    height: 75,
                                    child: RaisedButton(
                                        color: peacockBlue,
                                        child: Icon(
                                          Icons.arrow_back,
                                          size: 48.0,
                                          color: Colors.white,
                                        ),
                                        onPressed: () {
                                          Navigator.of(context).pop();
                                        }),
                                  ),
                                ),
                                Container(
                                  margin: EdgeInsets.symmetric(
                                    horizontal: 15,
                                  ),
                                  child: ButtonTheme(
                                    shape: RoundedRectangleBorder(
                                      borderRadius: BorderRadius.all(
                                          Radius.circular(6.0)),
                                    ),
                                    height: 75,
                                    child: RaisedButton(
                                        color: peacockBlue,
                                        child: Text(
                                          "License",
                                          style: TextStyle(
                                            height: textHeight,
                                            color: Colors.white,
                                            fontSize: 24,
                                          ),
                                        ),
                                        onPressed: () {
                                          _launchLicense();
                                        }),
                                  ),
                                ),
                                Container(
                                  margin: EdgeInsets.symmetric(
                                    horizontal: 15,
                                  ),
                                  child: ButtonTheme(
                                    height: 75,
                                    child: RaisedButton(
                                        shape: RoundedRectangleBorder(
                                          borderRadius: BorderRadius.all(
                                              Radius.circular(6.0)),
                                        ),
                                        color: peacockBlue,
                                        child: Text(
                                          "Other Licenses",
                                          style: TextStyle(
                                            height: textHeight,
                                            color: Colors.white,
                                            fontSize: 24,
                                          ),
                                        ),
                                        onPressed: () {
                                          showLicensePage(context: context);
                                        }),
                                  ),
                                ),
                              ],
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                ],
              ),
            );
          });
    },
  );
}