<?php

/*
 * This file is part of the official PHP MCP SDK.
 *
 * A collaboration between Symfony and the PHP Foundation.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Mcp\Tests\Unit\Schema;

use Mcp\Schema\ClientCapabilities;
use PHPUnit\Framework\TestCase;

class ClientCapabilitiesTest extends TestCase
{
    public function testSerializesRootsWithoutListChanged(): void
    {
        $capabilities = new ClientCapabilities(roots: true);

        $data = json_decode(json_encode($capabilities), true);

        $this->assertArrayHasKey('roots', $data);
        $this->assertSame([], $data['roots']);
    }

    public function testSerializesRootsWithListChanged(): void
    {
        $capabilities = new ClientCapabilities(roots: true, rootsListChanged: true);

        $data = json_decode(json_encode($capabilities), true);

        $this->assertSame(['listChanged' => true], $data['roots']);
    }

    public function testSerializesEmptyCapabilitiesAsObject(): void
    {
        $capabilities = new ClientCapabilities();

        $this->assertSame('{}', json_encode($capabilities));
    }

    public function testFromArrayReadsRootsListChanged(): void
    {
        $capabilities = ClientCapabilities::fromArray(['roots' => ['listChanged' => true]]);

        $this->assertTrue($capabilities->roots);
        $this->assertTrue($capabilities->rootsListChanged);
    }

    public function testFromArrayRootsWithoutListChanged(): void
    {
        $capabilities = ClientCapabilities::fromArray(['roots' => []]);

        $this->assertTrue($capabilities->roots);
        $this->assertNull($capabilities->rootsListChanged);
    }

    public function testRoundTripPreservesRootsListChanged(): void
    {
        $capabilities = new ClientCapabilities(roots: true, rootsListChanged: true);

        $data = json_decode(json_encode($capabilities), true);
        $restored = ClientCapabilities::fromArray($data);

        $this->assertTrue($restored->roots);
        $this->assertTrue($restored->rootsListChanged);
    }
}