<?php

declare(strict_types=1);

namespace MeshVault\Tests\Integration;

use DomainException;
use InvalidArgumentException;
use MeshVault\Indexer\ExplicitImportGroupingAdapter;
use MeshVault\Indexer\ScannedFile;
use MeshVault\Repository\PdoCatalogRepository;
use MeshVault\Repository\PdoImportJobRepository;
use PHPUnit\Framework\TestCase;

final class ExplicitGroupingTest extends TestCase
{
    private string $database;
    private \PDO $pdo;
    private PdoCatalogRepository $catalog;
    private PdoImportJobRepository $jobs;

    protected function setUp(): void
    {
        $this->database = tempnam(sys_get_temp_dir(), 'grouping-');
        $this->pdo = RepositoryDatabase::migrate($this->database);
        $this->catalog = new PdoCatalogRepository($this->pdo);
        $this->jobs = new PdoImportJobRepository($this->pdo);
        self::assertTrue(class_exists(ExplicitImportGroupingAdapter::class), 'Explicit adapter must exist');
    }

    protected function tearDown(): void
    {
        RepositoryDatabase::cleanup($this->database);
    }

    public function testServicePersistsPerFileAndWildcardDecisionsAtomically(): void
    {
        $source = RepositoryDatabase::directory('explicit-source');
        $library = RepositoryDatabase::directory('explicit-library');
        try {
            file_put_contents($source . '/a.stl', 'solid a');
            file_put_contents($source . '/b.stl', 'solid b');
            $adapter = new ExplicitImportGroupingAdapter($this->catalog, $this->jobs);
            $service = new \MeshVault\Indexer\ImportService(
                new \MeshVault\Indexer\FileEnumerator(
                    new \MeshVault\Indexer\Filesystem\LocalFilesystem(),
                    new \MeshVault\Indexer\Filesystem\PathSafety($source)
                ),
                $this->jobs,
                $adapter,
                new \MeshVault\Indexer\SpaceChecker(),
                $library
            );
            $context = ['*' => ['confirmed' => true, 'folder_path' => '/parts', 'model_name' => 'Part']];
            $job = $service->import($source, ['stl'], $context);
            $map = $adapter->recoverDecisions($job);
            self::assertCount(2, $map);
            self::assertSame($map, $adapter->recoverDecisions($service->import($source, ['stl'], $context)));
            $before = (int) $this->pdo->query('SELECT count(*) FROM import_jobs')->fetchColumn();
            try {
                $service->import($source, ['stl'], ['a.stl' => $context['*']]);
                self::fail('Incomplete grouping accepted');
            } catch (\MeshVault\Indexer\ImportException) {
                self::assertSame($before, (int) $this->pdo->query('SELECT count(*) FROM import_jobs')->fetchColumn());
            }
        } finally {
            RepositoryDatabase::remove($source);
            RepositoryDatabase::remove($library);
        }
    }

    private function resolve(array $context): int
    {
        return (new ExplicitImportGroupingAdapter($this->catalog, $this->jobs))->modelFor(
            '/source',
            new ScannedFile('/source/a.stl', 'a.stl', 1, 'model/stl'),
            $context
        );
    }

    public function testConfirmationAndCompleteContextAreRequired(): void
    {
        foreach (
            [[], ['confirmed' => true], ['confirmed' => 1, 'model_id' => 1],
            ['confirmed' => true, 'folder_path' => '/x'], ['confirmed' => true, 'model_id' => '1']] as $context
        ) {
            try {
                $this->resolve($context);
                self::fail('Malformed or unconfirmed context accepted');
            } catch (InvalidArgumentException) {
                self::assertSame(0, (int) $this->pdo->query('SELECT count(*) FROM models')->fetchColumn());
            }
        }
    }

    public function testStableIdentityNewIdentityAndAmbiguity(): void
    {
        $context = ['confirmed' => true, 'folder_path' => '/parts', 'model_name' => 'Part'];
        $id = $this->resolve($context);
        self::assertSame($id, $this->resolve($context));
        self::assertSame($id, $this->resolve(['model_id' => $id] + $context));
        self::assertNotSame($id, $this->resolve(['create_new' => true] + $context));
        $this->expectException(DomainException::class);
        $this->resolve($context);
    }

    public function testIdentityMismatchAndMissingModelAreRejected(): void
    {
        $id = $this->catalog->createModel('/parts', 'Part');
        foreach (
            [['model_id' => $id, 'model_name' => 'Other'],
            ['model_id' => $id, 'folder_path' => '/other'], ['model_id' => 999999]] as $context
        ) {
            try {
                $this->resolve(['confirmed' => true] + $context);
                self::fail('Conflicting identity accepted');
            } catch (DomainException) {
                self::assertTrue(true);
            }
        }
    }

    public function testDurableImmutableIdempotentDecisionsAndCallerRollback(): void
    {
        $id = $this->resolve(['confirmed' => true, 'folder_path' => '/parts', 'model_name' => 'Part']);
        $job = $this->jobs->create('/source', [['source_path' => '/source/a.stl', 'size' => 1, 'model_id' => $id]]);
        $adapter = new ExplicitImportGroupingAdapter($this->catalog, $this->jobs);
        $decision = ['source_path' => '/source/a.stl', 'model_id' => $id, 'context' => ['confirmed' => true]];
        $adapter->persistDecisions($job, [$decision]);
        $adapter->persistDecisions($job, [$decision]);
        $fresh = new ExplicitImportGroupingAdapter(
            $this->catalog,
            new PdoImportJobRepository(RepositoryDatabase::connect($this->database))
        );
        self::assertSame(['/source/a.stl' => $id], $fresh->recoverDecisions($job));
        try {
            $changed = array_replace($decision, ['context' => ['confirmed' => true, 'extra' => 1]]);
            $adapter->persistDecisions($job, [$changed]);
            self::fail('Decision changed');
        } catch (DomainException) {
            self::assertSame(['/source/a.stl' => $id], $adapter->recoverDecisions($job));
        }
        $this->pdo->beginTransaction();
        $other = $this->jobs->create('/other', []);
        $adapter->persistDecisions($other, [$decision]);
        self::assertTrue($this->pdo->inTransaction());
        $this->pdo->rollBack();
        self::assertSame([], $adapter->recoverDecisions($other));
    }
}