part of 'favorites_page.dart';

/// Open a dialog to create a new favorite folder.
Future<void> newFolder() async {
  return showDialog(
      context: App.rootContext,
      builder: (context) {
        var controller = TextEditingController();
        var folders = LocalFavoritesManager().folderNames;
        String? error;

        return StatefulBuilder(builder: (context, setState) {
          return ContentDialog(
            title: "New Folder".tl,
            content: Column(
              children: [
                TextField(
                  controller: controller,
                  decoration: InputDecoration(
                    hintText: "Folder Name".tl,
                    errorText: error,
                  ),
                  onChanged: (s) {
                    if (error != null) {
                      setState(() {
                        error = null;
                      });
                    }
                  },
                ),
              ],
            ).paddingHorizontal(16),
            actions: [
              TextButton(
                child: Text("Import from file".tl),
                onPressed: () async {
                  var file = await selectFile(ext: ['json']);
                  if(file == null) return;
                  var data = await file.readAsBytes();
                  try {
                    LocalFavoritesManager().fromJson(utf8.decode(data));
                  }
                  catch(e) {
                    context.showMessage(message: "Failed to import".tl);
                    return;
                  }
                  context.pop();
                },
              ).paddingRight(4),
              FilledButton(
                onPressed: () {
                  var e = validateFolderName(controller.text);
                  if (e != null) {
                    setState(() {
                      error = e;
                    });
                  } else {
                    LocalFavoritesManager().createFolder(controller.text);
                    context.pop();
                  }
                },
                child: Text("Create".tl),
              ),
            ],
          );
        });
      });
}

String? validateFolderName(String newFolderName) {
  var folders = LocalFavoritesManager().folderNames;
  if (newFolderName.isEmpty) {
    return "Folder name cannot be empty".tl;
  } else if (newFolderName.length > 50) {
    return "Folder name is too long".tl;
  } else if (folders.contains(newFolderName)) {
    return "Folder already exists".tl;
  }
  return null;
}

void addFavorite(Comic comic) {
  var folders = LocalFavoritesManager().folderNames;

  showDialog(
    context: App.rootContext,
    builder: (context) {
      String? selectedFolder;

      return StatefulBuilder(builder: (context, setState) {
        return ContentDialog(
          title: "Select a folder".tl,
          content: ListTile(
            title: Text("Folder".tl),
            trailing: Select(
              current: selectedFolder,
              values: folders,
              minWidth: 112,
              onTap: (v) {
                setState(() {
                  selectedFolder = folders[v];
                });
              },
            ),
          ),
          actions: [
            FilledButton(
              onPressed: () {
                if (selectedFolder != null) {
                  LocalFavoritesManager().addComic(
                    selectedFolder!,
                    FavoriteItem(
                      id: comic.id,
                      name: comic.title,
                      coverPath: comic.cover,
                      author: comic.subtitle ?? '',
                      type: ComicType((comic.sourceKey == 'local' ? 0 : comic.sourceKey.hashCode)),
                      tags: comic.tags ?? [],
                    ),
                  );
                  context.pop();
                }
              },
              child: Text("Confirm".tl),
            ),
          ],
        );
      });
    },
  );
}