-//
-// /**
-// * Display the specified book.
-// * @param $slug
-// * @return Response
-// */
-// public function show($slug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $slug);
-// $this->checkOwnablePermission('book-view', $book);
-// $bookChildren = $this->entityRepo->getBookChildren($book);
-// Views::add($book);
-// $this->setPageTitle($book->getShortName());
-// return view('books/show', [
-// 'book' => $book,
-// 'current' => $book,
-// 'bookChildren' => $bookChildren,
-// 'activity' => Activity::entityActivity($book, 20, 0)
-// ]);
-// }
-//
-// /**
-// * Show the form for editing the specified book.
-// * @param $slug
-// * @return Response
-// */
-// public function edit($slug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $slug);
-// $this->checkOwnablePermission('book-update', $book);
-// $this->setPageTitle(trans('entities.books_edit_named', ['bookName'=>$book->getShortName()]));
-// return view('books/edit', ['book' => $book, 'current' => $book]);
-// }
-//
-// /**
-// * Update the specified book in storage.
-// * @param Request $request
-// * @param $slug
-// * @return Response
-// */
-// public function update(Request $request, $slug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $slug);
-// $this->checkOwnablePermission('book-update', $book);
-// $this->validate($request, [
-// 'name' => 'required|string|max:255',
-// 'description' => 'string|max:1000'
-// ]);
-// $book = $this->entityRepo->updateFromInput('book', $book, $request->all());
-// Activity::add($book, 'book_update', $book->id);
-// return redirect($book->getUrl());
-// }
-//
-// /**
-// * Shows the page to confirm deletion
-// * @param $bookSlug
-// * @return \Illuminate\View\View
-// */
-// public function showDelete($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('book-delete', $book);
-// $this->setPageTitle(trans('entities.books_delete_named', ['bookName'=>$book->getShortName()]));
-// return view('books/delete', ['book' => $book, 'current' => $book]);
-// }
-//
-// /**
-// * Shows the view which allows pages to be re-ordered and sorted.
-// * @param string $bookSlug
-// * @return \Illuminate\View\View
-// */
-// public function sort($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('book-update', $book);
-// $bookChildren = $this->entityRepo->getBookChildren($book, true);
-// $books = $this->entityRepo->getAll('book', false, 'update');
-// $this->setPageTitle(trans('entities.books_sort_named', ['bookName'=>$book->getShortName()]));
-// return view('books/sort', ['book' => $book, 'current' => $book, 'books' => $books, 'bookChildren' => $bookChildren]);
-// }
-//
-// /**
-// * Shows the sort box for a single book.
-// * Used via AJAX when loading in extra books to a sort.
-// * @param $bookSlug
-// * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
-// */
-// public function getSortItem($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $bookChildren = $this->entityRepo->getBookChildren($book);
-// return view('books/sort-box', ['book' => $book, 'bookChildren' => $bookChildren]);
-// }
-//
-// /**
-// * Saves an array of sort mapping to pages and chapters.
-// * @param string $bookSlug
-// * @param Request $request
-// * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
-// */
-// public function saveSort($bookSlug, Request $request)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('book-update', $book);
-//
-// // Return if no map sent
-// if (!$request->filled('sort-tree')) {
-// return redirect($book->getUrl());
-// }
-//
-// // Sort pages and chapters
-// $sortMap = collect(json_decode($request->get('sort-tree')));
-// $bookIdsInvolved = collect([$book->id]);
-//
-// // Load models into map
-// $sortMap->each(function ($mapItem) use ($bookIdsInvolved) {
-// $mapItem->type = ($mapItem->type === 'page' ? 'page' : 'chapter');
-// $mapItem->model = $this->entityRepo->getById($mapItem->type, $mapItem->id);
-// // Store source and target books
-// $bookIdsInvolved->push(intval($mapItem->model->book_id));
-// $bookIdsInvolved->push(intval($mapItem->book));
-// });
-//
-// // Get the books involved in the sort
-// $bookIdsInvolved = $bookIdsInvolved->unique()->toArray();
-// $booksInvolved = $this->entityRepo->book->newQuery()->whereIn('id', $bookIdsInvolved)->get();
-// // Throw permission error if invalid ids or inaccessible books given.
-// if (count($bookIdsInvolved) !== count($booksInvolved)) {
-// $this->showPermissionError();
-// }
-// // Check permissions of involved books
-// $booksInvolved->each(function (Book $book) {
-// $this->checkOwnablePermission('book-update', $book);
-// });
-//
-// // Perform the sort
-// $sortMap->each(function ($mapItem) {
-// $model = $mapItem->model;
-//
-// $priorityChanged = intval($model->priority) !== intval($mapItem->sort);
-// $bookChanged = intval($model->book_id) !== intval($mapItem->book);
-// $chapterChanged = ($mapItem->type === 'page') && intval($model->chapter_id) !== $mapItem->parentChapter;
-//
-// if ($bookChanged) {
-// $this->entityRepo->changeBook($mapItem->type, $mapItem->book, $model);
-// }
-// if ($chapterChanged) {
-// $model->chapter_id = intval($mapItem->parentChapter);
-// $model->save();
-// }
-// if ($priorityChanged) {
-// $model->priority = intval($mapItem->sort);
-// $model->save();
-// }
-// });
-//
-// // Rebuild permissions and add activity for involved books.
-// $booksInvolved->each(function (Book $book) {
-// $this->entityRepo->buildJointPermissionsForBook($book);
-// Activity::add($book, 'book_sort', $book->id);
-// });
-//
-// return redirect($book->getUrl());
-// }
-//
-// /**
-// * Remove the specified book from storage.
-// * @param $bookSlug
-// * @return Response
-// */
-// public function destroy($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('book-delete', $book);
-// Activity::addMessage('book_delete', 0, $book->name);
-// $this->entityRepo->destroyBook($book);
-// return redirect('/books');
-// }
-//
-// /**
-// * Show the Restrictions view.
-// * @param $bookSlug
-// * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
-// */
-// public function showRestrict($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('restrictions-manage', $book);
-// $roles = $this->userRepo->getRestrictableRoles();
-// return view('books/restrictions', [
-// 'book' => $book,
-// 'roles' => $roles
-// ]);
-// }
-//
-// /**
-// * Set the restrictions for this book.
-// * @param $bookSlug
-// * @param $bookSlug
-// * @param Request $request
-// * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
-// */
-// public function restrict($bookSlug, Request $request)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $this->checkOwnablePermission('restrictions-manage', $book);
-// $this->entityRepo->updateEntityPermissionsFromRequest($request, $book);
-// session()->flash('success', trans('entities.books_permissions_updated'));
-// return redirect($book->getUrl());
-// }
-//
-// /**
-// * Export a book as a PDF file.
-// * @param string $bookSlug
-// * @return mixed
-// */
-// public function exportPdf($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $pdfContent = $this->exportService->bookToPdf($book);
-// return response()->make($pdfContent, 200, [
-// 'Content-Type' => 'application/octet-stream',
-// 'Content-Disposition' => 'attachment; filename="' . $bookSlug . '.pdf'
-// ]);
-// }
-//
-// /**
-// * Export a book as a contained HTML file.
-// * @param string $bookSlug
-// * @return mixed
-// */
-// public function exportHtml($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $htmlContent = $this->exportService->bookToContainedHtml($book);
-// return response()->make($htmlContent, 200, [
-// 'Content-Type' => 'application/octet-stream',
-// 'Content-Disposition' => 'attachment; filename="' . $bookSlug . '.html'
-// ]);
-// }
-//
-// /**
-// * Export a book as a plain text file.
-// * @param $bookSlug
-// * @return mixed
-// */
-// public function exportPlainText($bookSlug)
-// {
-// $book = $this->entityRepo->getBySlug('book', $bookSlug);
-// $htmlContent = $this->exportService->bookToPlainText($book);
-// return response()->make($htmlContent, 200, [
-// 'Content-Type' => 'application/octet-stream',
-// 'Content-Disposition' => 'attachment; filename="' . $bookSlug . '.txt'
-// ]);
-// }