did-manager/tests/Unit/FAIR/DID/Storage/KeyStoreTest.php

<?php

/**
 * KeyStore Tests
 *
 * @package Tests\Unit\FAIR\DID\Storage
 */

declare(strict_types=1);

namespace Tests\Unit\FAIR\DID\Storage;

use FAIR\DID\Storage\KeyStore;
use PHPUnit\Framework\TestCase;

/**
 * Test cases for KeyStore
 */
class KeyStoreTest extends TestCase
{
    /**
     * Path to test store.
     *
     * @var string
     */
    private string $test_store_path;

    protected function setUp(): void
    {
        $this->test_store_path = sys_get_temp_dir() . '/did-manager-test-' . uniqid() . '.json';
    }

    protected function tearDown(): void
    {
        if (file_exists($this->test_store_path)) {
            unlink($this->test_store_path);
        }
    }

    /**
     * Test store creates file if not exists
     */
    public function testStoreCreatesFileIfNotExists(): void
    {
        $store = new KeyStore($this->test_store_path);
        $this->assertFileDoesNotExist($this->test_store_path);

        $store->store_did(
            'did:plc:test123',
            'rotation-private-key',
            'zRotationPublic',
            'verification-private-key',
            'zVerificationPublic',
        );

        $this->assertFileExists($this->test_store_path);
    }

    /**
     * Test store DID and retrieve
     */
    public function testStoreDidAndRetrieve(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test123';

        $store->store_did(
            $did,
            'rotation-private-key',
            'zRotationPublic',
            'verification-private-key',
            'zVerificationPublic',
            'plugin',
            ['name' => 'Test Plugin'],
        );

        $entry = $store->get_did($did);

        $this->assertNotNull($entry);
        $this->assertSame($did, $entry['did']);
        $this->assertSame('rotation-private-key', $entry['rotationKey']['private']);
        $this->assertSame('zRotationPublic', $entry['rotationKey']['public']);
        $this->assertSame('plugin', $entry['type']);
        $this->assertTrue($entry['active']);
    }

    /**
     * Test get non-existent DID returns null
     */
    public function testGetNonExistentDidReturnsNull(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->assertNull($store->get_did('did:plc:nonexistent'));
    }

    /**
     * Test get rotation key
     */
    public function testGetRotationKey(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test123';

        $store->store_did(
            $did,
            'rotation-private-key',
            'zRotationPublic',
            'verification-private-key',
            'zVerificationPublic',
        );

        $this->assertSame('rotation-private-key', $store->get_rotation_key($did));
    }

    /**
     * Test get verification key
     */
    public function testget_verification_key(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test123';

        $store->store_did(
            $did,
            'rotation-private-key',
            'zRotationPublic',
            'verification-private-key',
            'zVerificationPublic',
        );

        $this->assertSame('verification-private-key', $store->get_verification_key($did));
    }

    /**
     * Test update keys
     */
    public function testUpdateKeys(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test123';

        $store->store_did(
            $did,
            'old-rotation-key',
            'zOldRotationPublic',
            'old-verification-key',
            'zOldVerificationPublic',
        );

        $store->update_keys(
            $did,
            'new-rotation-key',
            'zNewRotationPublic',
            'new-verification-key',
            'zNewVerificationPublic',
        );

        $this->assertSame('new-rotation-key', $store->get_rotation_key($did));
        $this->assertSame('new-verification-key', $store->get_verification_key($did));
    }

    /**
     * Test update keys throws for non-existent DID
     */
    public function testUpdateKeysThrowsForNonExistentDid(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->expectException(\RuntimeException::class);
        $store->update_keys(
            'did:plc:nonexistent',
            'new-rotation',
            'zNew',
            'new-verification',
            'zNew',
        );
    }

    /**
     * Test deactivate DID
     */
    public function testDeactivateDid(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test123';

        $store->store_did(
            $did,
            'rotation-key',
            'zRotation',
            'verification-key',
            'zVerification',
        );

        $this->assertTrue($store->is_active($did));

        $store->deactivate($did);

        $this->assertFalse($store->is_active($did));

        $entry = $store->get_did($did);
        $this->assertArrayHasKey('deactivatedAt', $entry);
    }

    /**
     * Test deactivate throws for non-existent DID
     */
    public function testDeactivateThrowsForNonExistentDid(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->expectException(\RuntimeException::class);
        $store->deactivate('did:plc:nonexistent');
    }

    /**
     * Test list DIDs
     */
    public function testListDids(): void
    {
        $store = new KeyStore($this->test_store_path);

        $store->store_did('did:plc:one', 'key1', 'pub1', 'ver1', 'vpub1', 'plugin');
        $store->store_did('did:plc:two', 'key2', 'pub2', 'ver2', 'vpub2', 'theme');

        $list = $store->list_dids();

        $this->assertCount(2, $list);

        $dids = array_column($list, 'did');
        $this->assertContains('did:plc:one', $dids);
        $this->assertContains('did:plc:two', $dids);
    }

    /**
     * Test list DIDs excludes private keys
     */
    public function testListDidsExcludesPrivateKeys(): void
    {
        $store = new KeyStore($this->test_store_path);

        $store->store_did('did:plc:test', 'private-key', 'pub', 'ver', 'vpub');

        $list = $store->list_dids();

        $this->assertArrayNotHasKey('rotationKey', $list[0]);
        $this->assertArrayNotHasKey('verificationKey', $list[0]);
    }

    /**
     * Test exists
     */
    public function testExists(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->assertFalse($store->exists('did:plc:test'));

        $store->store_did('did:plc:test', 'key', 'pub', 'ver', 'vpub');

        $this->assertTrue($store->exists('did:plc:test'));
    }

    /**
     * Test is active
     */
    public function testIsActive(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->assertFalse($store->is_active('did:plc:nonexistent'));

        $store->store_did('did:plc:test', 'key', 'pub', 'ver', 'vpub');
        $this->assertTrue($store->is_active('did:plc:test'));
    }

    /**
     * Test update metadata
     */
    public function testUpdateMetadata(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test';

        $store->store_did($did, 'key', 'pub', 'ver', 'vpub', null, ['name' => 'Test']);

        $store->update_metadata($did, ['version' => '1.0.0']);

        $entry = $store->get_did($did);
        $this->assertSame('Test', $entry['metadata']['name']);
        $this->assertSame('1.0.0', $entry['metadata']['version']);
    }

    /**
     * Test update metadata throws for non-existent DID
     */
    public function testUpdateMetadataThrowsForNonExistentDid(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->expectException(\RuntimeException::class);
        $store->update_metadata('did:plc:nonexistent', ['key' => 'value']);
    }

    /**
     * Test delete DID
     */
    public function testDeleteDid(): void
    {
        $store = new KeyStore($this->test_store_path);
        $did = 'did:plc:test';

        $store->store_did($did, 'key', 'pub', 'ver', 'vpub');
        $this->assertTrue($store->exists($did));

        $result = $store->delete($did);

        $this->assertTrue($result);
        $this->assertFalse($store->exists($did));
    }

    /**
     * Test delete non-existent DID returns false
     */
    public function testDeleteNonExistentDidReturnsFalse(): void
    {
        $store = new KeyStore($this->test_store_path);

        $this->assertFalse($store->delete('did:plc:nonexistent'));
    }

    /**
     * Test data persists across instances
     */
    public function testDataPersistsAcrossInstances(): void
    {
        $store1 = new KeyStore($this->test_store_path);
        $store1->store_did('did:plc:test', 'key', 'pub', 'ver', 'vpub', 'plugin');

        $store2 = new KeyStore($this->test_store_path);

        $this->assertTrue($store2->exists('did:plc:test'));
        $entry = $store2->get_did('did:plc:test');
        $this->assertSame('plugin', $entry['type']);
    }
}