TYPO3-Documentation#13 Add command to remove manuals from index by gi…

…ven constraints

This commit adds a new command `docsearch:index:delete`, which
allows for the deletion of all or selected manuals from the
Elasticsearch index.

It accepts the following options:

- --manual-slug: The slug of the manual to be removed from the index
- --manual-version: The version of the manual to be removed from the index
- --manual-type: The type of the manual to be removed from the index
- --manual-language: The language of the manual to be removed from the index

To execute the command, type:

`bin/console docsearch:index:delete`

To remove, for example, a specific manual version, type:

`bin/console docsearch:index:delete --manual-version=12.4`

Multiple options can be combined for more targeted deletions.

Resolves issue: TYPO3-Documentation#13

README.rst

@@ -89,6 +89,28 @@ Removing index to start fresh
 If you want to start with fresh Elasticsearch index locally, you can use chrome extensions
 like `Elasticvue` to clear/drop Elasticsearch index if necessary.
 
+Removing selected manuals from index
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If you want to remove selected manuals from index, you can use chrome extensions or the command `docsearch:index:delete`.
+
+.. code-block:: bash
+
+  --manual-slug - slug of the manual to remove from index
+  --manual-version - version of the manual to remove from index
+  --manual-type - type of the manual to remove from index
+  --manual-language - language of the manual to remove from index
+
+execute it with:
+
+.. code-block:: bash
+
+  ddev exec ./bin/console docsearch:index:delete --manual-slug= --manual-version=9.5 --manual-type=Extension --manual-language=en-us
+
+.. note::
+   If you set the ``--manual-version`` option, manuals with this version will be updated by removing
+   selected version from the list, and if this version was the last one, only then the whole manual will be removed.
+
 Indexing Core changelog
 ^^^^^^^^^^^^^^^^^^^^^^^
 

src/Command/IndexCleaner.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Command;
+
+use App\Dto\Constraints;
+use App\Repository\ElasticRepository;
+use LogicException;
+use RuntimeException;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Stopwatch\Stopwatch;
+
+#[AsCommand(name: 'docsearch:index:delete', description: 'Removes from index manuals by given constraints')]
+class IndexCleaner extends Command
+{
+    public function __construct(private readonly ElasticRepository $elasticRepository)
+    {
+        parent::__construct();
+    }
+
+    /**
+     * @throws InvalidArgumentException
+     */
+    protected function configure(): void
+    {
+        $this->addOption('manual-slug', 'mp', InputArgument::OPTIONAL, 'Manula path', '');
+        $this->addOption('manual-version', 'mv', InputArgument::OPTIONAL, 'Manual version', '');
+        $this->addOption('manual-type', 'mt', InputArgument::OPTIONAL, 'Manual type', '');
+        $this->addOption('manual-language', 'ml', InputArgument::OPTIONAL, 'Manual language', '');
+    }
+
+    /**
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @return int
+     * @throws LogicException
+     * @throws RuntimeException
+     * @throws \InvalidArgumentException
+     */
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $timer = new Stopwatch();
+        $timer->start('importer');
+
+        $io = new SymfonyStyle($input, $output);
+        $io->title('Removing from index documents by provided criteria');
+
+        $constraints = new Constraints(
+            $input->getOption('manual-slug'),
+            $input->getOption('manual-version'),
+            $input->getOption('manual-type'),
+            $input->getOption('manual-language')
+        );
+
+        $deletedManualsCount = $this->elasticRepository->deleteByConstraints($constraints);
+
+        $totalTime = $timer->stop('importer');
+        $io->info('Finished after ' . $this->formatMilliseconds($totalTime->getDuration()) . '. Total of ' . $deletedManualsCount . ' manuals were removed.');
+
+        return Command::SUCCESS;
+    }
+
+    private function formatMilliseconds(int $milliseconds): string
+    {
+        $t = intdiv($milliseconds, 1000);
+        return sprintf('%02d:%02d:%02d', (int)($t / 3600), (int)($t / 60) % 60, $t % 60);
+    }
+}

src/Dto/Constraints.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Dto;
+
+readonly class Constraints
+{
+    public function __construct(
+        private string $slug = '',
+        private string $version = '',
+        private string $type = '',
+        private string $language = ''
+    ) {
+    }
+
+    public function getSlug(): string
+    {
+        return $this->slug;
+    }
+
+    public function getVersion(): string
+    {
+        return $this->version;
+    }
+
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    public function getLanguage(): string
+    {
+        return $this->language;
+    }
+}

src/QueryBuilder/ElasticQueryBuilder.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\QueryBuilder;
+
+use App\Dto\Constraints;
+use Elastica\Query;
+
+class ElasticQueryBuilder
+{
+    public function buildQuery(Constraints $constraints): Query
+    {
+        $query = ['bool' => ['must' => []]];
+
+        if ($constraints->getSlug() !== '') {
+            $query['bool']['must'][] = ['match' => ['manual_slug' => $constraints->getSlug()]];
+        }
+
+        if ($constraints->getVersion() !== '') {
+            $query['bool']['must'][] = ['match' => ['manual_version' => $constraints->getVersion()]];
+        }
+
+        if ($constraints->getType() !== '') {
+            $query['bool']['must'][] = ['match' => ['manual_type' => $constraints->getType()]];
+        }
+
+        if ($constraints->getLanguage() !== '') {
+            $query['bool']['must'][] = ['match' => ['manual_language' => $constraints->getLanguage()]];
+        }
+
+        return new Query(['query' => $query]);
+    }
+}

src/Repository/ElasticRepository.php

@@ -2,8 +2,10 @@
 
 namespace App\Repository;
 
+use App\Dto\Constraints;
 use App\Dto\Manual;
 use App\Dto\SearchDemand;
+use App\QueryBuilder\ElasticQueryBuilder;
 use Elastica\Aggregation\Terms;
 use Elastica\Client;
 use Elastica\Exception\InvalidException;
@@ -33,7 +35,7 @@ class ElasticRepository
 
     private readonly Client $elasticClient;
 
-    public function __construct()
+    public function __construct(private readonly ElasticQueryBuilder $elasticQueryBuilder)
     {
         $elasticConfig = $this->getElasticSearchConfig();
 
@@ -116,6 +118,28 @@ public function deleteByManual(Manual $manual): void
         $this->elasticIndex->updateByQuery($deleteQuery, $script);
     }
 
+    /**
+     * @return int Number of deleted documents
+     */
+    public function deleteByConstraints(Constraints $constraints): int
+    {
+        $query = $this->elasticQueryBuilder->buildQuery($constraints);
+
+        // If a specific manual version is provided, the goal is to remove only this version from
+        // all associated snippets. In such cases, an update query is used instead of delete.
+        // This approach ensures that if a snippet has no other versions remaining after the
+        // removal of the specified one, the entire snippet is deleted. This deletion is
+        // accomplished by setting ctx.op to "delete" in the provided script.
+        if ($constraints->getVersion()) {
+            $script = new Script($this->getDeleteQueryScript(), ['manual_version' => $constraints->getVersion()], AbstractScript::LANG_PAINLESS);
+            $response = $this->elasticIndex->updateByQuery($query, $script, ['wait_for_completion' => true]);
+        } else {
+            $response = $this->elasticIndex->deleteByQuery($query, ['wait_for_completion' => true]);
+        }
+
+        return $response->getData()['total'];
+    }
+
     /**
      * Provide elasticsearch script which removes version (provided in params) from a snippet
      * and if this is the last version assigned to snippet, it deletes the snippet from index (by setting ctx.op).
@@ -126,7 +150,11 @@ protected function getDeleteQueryScript(): string
     {
         $script = <<<EOD
 if (ctx._source.manual_version.contains(params.manual_version)) {
-   ctx._source.manual_version.remove(ctx._source.manual_version.indexOf(params.manual_version));
+    for (int i=ctx._source.manual_version.length-1; i>=0; i--) {
+        if (ctx._source.manual_version[i] == params.manual_version) {
+            ctx._source.manual_version.remove(i);
+        }
+    }
 }
 if (ctx._source.manual_version.size() == 0) {
     ctx.op = "delete";

tests/Unit/Command/IndexCleanerTest.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace App\Tests\Unit\Command;
+
+use App\Command\IndexCleaner;
+use App\Repository\ElasticRepository;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
+use Symfony\Component\Console\Tester\CommandTester;
+
+class IndexCleanerTest extends TestCase
+{
+    use ProphecyTrait;
+
+    public function usesConstraintsToPerformDeleteQueryDataProvider(): array
+    {
+        return [
+            'All options' => [
+                [
+                    '--manual-path' => 'm/typo3/reference-coreapi/12.4/en-us',
+                    '--manual-version' => '12.4',
+                    '--manual-type' => 'TYPO3 Manual',
+                    '--manual-language' => 'en-us'
+                ],
+                10
+            ],
+            'Some options' => [
+                [
+                    '--manual-path' => 'm/typo3/reference-coreapi/12.4/en-us',
+                    '--manual-type' => 'TYPO3 Manual',
+                ],
+                8
+            ],
+            'Only path' => [
+                ['--manual-path' => 'm/typo3/reference-coreapi/12.4/en-us'],
+                5
+            ],
+            'Only version' => [
+                ['--manual-version' => '12.4'],
+                3
+            ],
+            'Only type' => [
+                ['--manual-type' => 'TYPO3 Manual'],
+                2
+            ],
+            'Only language' => [
+                ['--manual-type' => 'en-us'],
+                1
+            ],
+        ];
+    }
+
+    /**
+     * @test
+     * @dataProvider usesConstraintsToPerformDeleteQueryDataProvider
+     */
+    public function usesConstraintsToPerformDeleteQuery(array $options, int $expectedDeletions): void
+    {
+        $elasticRepositoryProphecy = $this->prophesize(ElasticRepository::class);
+        $elasticRepositoryProphecy
+            ->deleteByConstraints(Argument::type('App\Dto\Constraints'))
+            ->shouldBeCalledTimes(1)
+            ->willReturn($expectedDeletions);
+
+        $command = new IndexCleaner($elasticRepositoryProphecy->reveal());
+        $commandTester = new CommandTester($command);
+        $commandTester->execute($options);
+        $output = $commandTester->getDisplay(true);
+
+        $this->assertSame(0, $commandTester->getStatusCode());
+        $this->assertStringContainsString("Total of $expectedDeletions manuals were removed", $output);
+    }
+}

tests/Unit/Dto/ConstraintsTest.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Tests\Unit\Dto;
+
+use App\Dto\Constraints;
+use PHPUnit\Framework\TestCase;
+
+class ConstraintsTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function canBeInstantiatedWithDefaultValues(): void
+    {
+        $constraints = new Constraints();
+
+        $this->assertInstanceOf(Constraints::class, $constraints);
+        $this->assertSame('', $constraints->getSlug());
+        $this->assertSame('', $constraints->getVersion());
+        $this->assertSame('', $constraints->getType());
+        $this->assertSame('', $constraints->getLanguage());
+    }
+
+    /**
+     * @test
+     */
+    public function canBeInstantiatedWithCustomValues(): void
+    {
+        $constraints = new Constraints('m/typo3/reference-coreapi/12.4/en-us', '12.4', 'TYPO3 Manual', 'en-us');
+
+        $this->assertInstanceOf(Constraints::class, $constraints);
+        $this->assertSame('m/typo3/reference-coreapi/12.4/en-us', $constraints->getSlug());
+        $this->assertSame('12.4', $constraints->getVersion());
+        $this->assertSame('TYPO3 Manual', $constraints->getType());
+        $this->assertSame('en-us', $constraints->getLanguage());
+    }
+
+    /**
+     * @test
+     */
+    public function getSlugReturnsCorrectValue(): void
+    {
+        $constraints = new Constraints('m/typo3/reference-coreapi/12.4/en-us');
+        $this->assertSame('m/typo3/reference-coreapi/12.4/en-us', $constraints->getSlug());
+    }
+
+    /**
+     * @test
+     */
+    public function getVersionReturnsCorrectValue(): void
+    {
+        $constraints = new Constraints('', '12.4');
+        $this->assertSame('12.4', $constraints->getVersion());
+    }
+
+    /**
+     * @test
+     */
+    public function getTypeReturnsCorrectValue(): void
+    {
+        $constraints = new Constraints('', '', 'TYPO3 Manual');
+        $this->assertSame('TYPO3 Manual', $constraints->getType());
+    }
+
+    /**
+     * @test
+     */
+    public function getLanguageReturnsCorrectValue(): void
+    {
+        $constraints = new Constraints('', '', '', 'en-us');
+        $this->assertSame('en-us', $constraints->getLanguage());
+    }
+}