import 'package:comunic/helpers/virtual_directory_helper.dart';
import 'package:comunic/ui/routes/home_route.dart';
import 'package:comunic/ui/routes/single_post_route.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';
import 'package:meta/meta.dart';

/// Navigation utilities
///
/// @author Pierre HUBERT

/// Pop a page
void popPage(BuildContext context) {
  HomeController.of(context).popPage();
}

/// Open the page of a user
void openUserPage({@required int userID, @required BuildContext context}) {
  assert(userID != null);
  assert(context != null);

  HomeController.of(context).openUserPage(userID);
}

/// Open a post in full screen
void openPostFullScreen(int postID, BuildContext context) {
  HomeController.of(context).push(SinglePostRoute(postID: postID));
}

/// Open a virtual directory
void openVirtualDirectory(BuildContext context, String directory) async {
  if (directory.startsWith("@")) directory = directory.substring(1);

  try {
    final result = await VirtualDirectoryHelper().find(directory);

    switch (result.type) {
      case VirtualDirectoryType.USER:
        openUserPage(context: context, userID: result.id);
        break;

      case VirtualDirectoryType.GROUP:
        HomeController.of(context).openGroup(result.id);
        break;

      case VirtualDirectoryType.NONE:
        await showDialog(
            context: context,
            builder: (c) => AlertDialog(
                  title: Text(tr("Error")),
                  content: Text(tr("Could not find related resource!")),
                  actions: <Widget>[
                    MaterialButton(
                      child: Text(tr("OK")),
                      onPressed: () => Navigator.of(c).pop(),
                    )
                  ],
                ));
        break;
    }
  } catch (e, stack) {
    print(e);
    print(stack);
    showSimpleSnack(context, tr("Could not search virtual directory!"));
  }
}