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feat: add docx generation tasktype+provider

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Signed-off-by: Julien Veyssier <julien-nc@posteo.net>
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Julien Veyssier 2025-04-02 11:56:44 +02:00
parent 624c00b214
commit 1aa37bd6b5
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6 changed files with 879 additions and 55 deletions
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3
composer.json
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@ -16,7 +16,8 @@
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667
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@ -144,6 +408,351 @@
"source": "https://github.com/mikehaertl/php-tmpfile/tree/1.3.0"
},
"time": "2024-10-14T16:12:48+00:00"
},
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},
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"name": "nette/utils",
"version": "v4.0.6",
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"suggest": {
"ext-gd": "to use Image",
"ext-iconv": "to use Strings::webalize(), toAscii(), chr() and reverse()",
"ext-intl": "to use Strings::webalize(), toAscii(), normalize() and compare()",
"ext-json": "to use Nette\\Utils\\Json",
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@ -1310,56 +1919,6 @@
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},
"time": "2019-01-08T18:20:26+00:00"
},
{
"name": "psr/log",
"version": "3.0.2",
@ -3251,8 +3810,8 @@
"aliases": [],
"minimum-stability": "dev",
"stability-flags": {
"nextcloud/ocp": 20,
"roave/security-advisories": 20
"roave/security-advisories": 20,
"nextcloud/ocp": 20
},
"prefer-stable": true,
"prefer-lowest": false,
@ -3260,7 +3819,7 @@
"ext-json": "*",
"ext-simplexml": "*"
},
"platform-dev": {},
"platform-dev": [],
"platform-overrides": {
"php": "8.1"
},

4
lib/AppInfo/Application.php
View file

@ -32,6 +32,8 @@ use OCA\Richdocuments\Preview\OOXML;
use OCA\Richdocuments\Preview\OpenDocument;
use OCA\Richdocuments\Preview\Pdf;
use OCA\Richdocuments\Reference\OfficeTargetReferenceProvider;
use OCA\Richdocuments\TaskProcessing\TextToDocumentProvider;
use OCA\Richdocuments\TaskProcessing\TextToDocumentTaskType;
use OCA\Richdocuments\Template\CollaboraTemplateProvider;
use OCA\Viewer\Event\LoadViewer;
use OCP\AppFramework\App;
@ -84,6 +86,8 @@ class Application extends App implements IBootstrap {
$context->registerPreviewProvider(Pdf::class, Pdf::MIMETYPE_REGEX);
$context->registerFileConversionProvider(ConversionProvider::class);
$context->registerNotifierService(Notifier::class);
$context->registerTaskProcessingTaskType(TextToDocumentTaskType::class);
$context->registerTaskProcessingProvider(TextToDocumentProvider::class);
}
public function boot(IBootContext $context): void {

96
lib/Service/DocumentGenerationService.php Normal file
View file

@ -0,0 +1,96 @@
<?php
/**
* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\Richdocuments\Service;
use League\CommonMark\GithubFlavoredMarkdownConverter;
use OCA\Richdocuments\AppInfo\Application;
use OCP\ITempManager;
use OCP\TaskProcessing\Exception\Exception;
use OCP\TaskProcessing\Exception\NotFoundException;
use OCP\TaskProcessing\Exception\PreConditionNotMetException;
use OCP\TaskProcessing\Exception\UnauthorizedException;
use OCP\TaskProcessing\Exception\ValidationException;
use OCP\TaskProcessing\IManager;
use OCP\TaskProcessing\Task;
use OCP\TaskProcessing\TaskTypes\TextToText;
use RuntimeException;
class DocumentGenerationService {
public const PROMPT = <<<EOF
Generate a markdown document with titles, paragraphs, bullet points and tables if needed.
Write the document in the same language as the description.
Here is the document description:
EOF;
public function __construct(
private IManager $taskProcessingManager,
private RemoteService $remoteService,
private ITempManager $tempManager,
) {
}
public function generateDocument(?string $userId, string $description) {
$prompt = self::PROMPT;
$task = new Task(
TextToText::ID,
['input' => $prompt . "\n\n" . $description],
Application::APPNAME,
$userId
);
try {
$this->taskProcessingManager->scheduleTask($task);
} catch (PreConditionNotMetException|UnauthorizedException|ValidationException|Exception $e) {
throw new RuntimeException($e->getMessage(), $e->getCode(), $e);
}
while (true) {
try {
$task = $this->taskProcessingManager->getTask($task->getId());
sleep(2);
} catch (NotFoundException|Exception $e) {
throw new RuntimeException($e->getMessage(), $e->getCode(), $e);
}
if (in_array($task->getStatus(), [Task::STATUS_SUCCESSFUL, Task::STATUS_FAILED, Task::STATUS_CANCELLED])) {
break;
}
}
if ($task->getStatus() !== Task::STATUS_SUCCESSFUL) {
throw new RuntimeException('LLM backend Task with id ' . $task->getId() . ' failed or was cancelled');
}
$output = $task->getOutput();
if (!isset($output['output'])) {
throw new RuntimeException('LLM backend Task with id ' . $task->getId() . ' does not have output key');
}
$markdownContent = $output['output'];
$converter = new GithubFlavoredMarkdownConverter();
$htmlContent = $converter->convert($markdownContent)->getContent();
// TODO find a way to create a proper stream from a string instead of using a temp file
//$htmlStream = fopen(sprintf('data://text/plain,%s', $htmlContent), 'r');
//$htmlStream = fopen(sprintf('%s', $htmlContent), 'r');
//$htmlStream = fopen('php://memory', 'r+');
//fwrite($htmlStream, $htmlContent);
//rewind($htmlStream);
//$userStorage = $this->rootFolder->getUserFolder('user1');
//$file = $userStorage->getFirstNodeById(4830);
//$fileName = $file->getStorage()->getLocalFile($file->getInternalPath());
//$htmlStream = fopen($fileName, 'rb');
$tmpFilePath = $this->tempManager->getTemporaryFile();
file_put_contents($tmpFilePath, $htmlContent);
$htmlStream = fopen($tmpFilePath, 'rb');
$docxContent = $this->remoteService->convertTo('document.html', $htmlStream, 'docx');
return $docxContent;
}
}

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<?php
/**
* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
declare(strict_types=1);
namespace OCA\Richdocuments\TaskProcessing;
use OCA\Richdocuments\AppInfo\Application;
use OCA\Richdocuments\Service\DocumentGenerationService;
use OCP\IL10N;
use OCP\TaskProcessing\ISynchronousProvider;
class TextToDocumentProvider implements ISynchronousProvider {
public function __construct(
private DocumentGenerationService $documentGenerationService,
private IL10N $l10n,
) {
}
public function getId(): string {
return Application::APPNAME . '-slide_deck_generator';
}
public function getName(): string {
return $this->l10n->t('Nextcloud Assistant Slide Deck Generator');
}
public function getTaskTypeId(): string {
return TextToDocumentTaskType::ID;
}
public function getExpectedRuntime(): int {
return 120;
}
public function getInputShapeEnumValues(): array {
return [];
}
public function getInputShapeDefaults(): array {
return [];
}
public function getOptionalInputShape(): array {
return [];
}
public function getOptionalInputShapeEnumValues(): array {
return [];
}
public function getOptionalInputShapeDefaults(): array {
return [];
}
public function getOutputShapeEnumValues(): array {
return [];
}
public function getOptionalOutputShape(): array {
return [];
}
public function getOptionalOutputShapeEnumValues(): array {
return [];
}
/**
* @inheritDoc
*/
public function process(?string $userId, array $input, callable $reportProgress): array {
if ($userId === null) {
throw new \RuntimeException('User ID is required to process the prompt.');
}
if (!isset($input['text']) || !is_string($input['text'])) {
throw new \RuntimeException('Invalid input, expected "text" key with string value');
}
$fileContent = $this->documentGenerationService->generateDocument(
$userId,
$input['text'],
);
error_log('BBBBBBBBBBBBBBB result ' . $fileContent);
return [
'file' => $fileContent,
];
}
}

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<?php
/**
* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
declare(strict_types=1);
namespace OCA\Richdocuments\TaskProcessing;
use OCA\Richdocuments\AppInfo\Application;
use OCP\IL10N;
use OCP\TaskProcessing\EShapeType;
use OCP\TaskProcessing\ITaskType;
use OCP\TaskProcessing\ShapeDescriptor;
class TextToDocumentTaskType implements ITaskType {
public const ID = Application::APPNAME . ':text_to_document';
public function __construct(
private IL10N $l,
) {
}
/**
* @inheritDoc
*/
public function getName(): string {
return $this->l->t('Generate Office document');
}
/**
* @inheritDoc
*/
public function getDescription(): string {
return $this->l->t('Generate an Office document from a prompt');
}
/**
* @return string
*/
public function getId(): string {
return self::ID;
}
/**
* @return ShapeDescriptor[]
*/
public function getInputShape(): array {
return [
'text' => new ShapeDescriptor(
$this->l->t('Instructions'),
$this->l->t('Describe the document you want the assistant to generate'),
EShapeType::Text,
),
];
}
/**
* @return ShapeDescriptor[]
*/
public function getOutputShape(): array {
return [
'file' => new ShapeDescriptor(
$this->l->t('Generated Office document'),
$this->l->t('The Office document that was generated from the description'),
EShapeType::File,
),
];
}
}