<?php

declare(strict_types=1);

namespace Ramsey\Uuid\Test\Provider\Node;

use Ramsey\Uuid\Exception\NodeException;
use Ramsey\Uuid\Provider\Node\FallbackNodeProvider;
use Ramsey\Uuid\Provider\Node\RandomNodeProvider;
use Ramsey\Uuid\Provider\Node\StaticNodeProvider;
use Ramsey\Uuid\Provider\Node\SystemNodeProvider;
use Ramsey\Uuid\Provider\NodeProviderInterface;
use Ramsey\Uuid\Test\TestCase;
use Ramsey\Uuid\Type\Hexadecimal;

class FallbackNodeProviderTest extends TestCase
{
    public function testGetNodeCallsGetNodeOnEachProviderUntilNodeFound(): void
    {
        $providerWithNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $providerWithNode->expects($this->once())
            ->method('getNode')
            ->willReturn(new Hexadecimal('57764a07f756'));
        $providerWithoutNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $providerWithoutNode->expects($this->once())
            ->method('getNode')
            ->willThrowException(new NodeException());

        $provider = new FallbackNodeProvider([$providerWithoutNode, $providerWithNode]);
        $provider->getNode();
    }

    public function testGetNodeReturnsNodeFromFirstProviderWithNode(): void
    {
        $providerWithoutNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $providerWithoutNode->expects($this->once())
            ->method('getNode')
            ->willThrowException(new NodeException());
        $providerWithNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $providerWithNode->expects($this->once())
            ->method('getNode')
            ->willReturn(new Hexadecimal('57764a07f756'));
        $anotherProviderWithoutNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $anotherProviderWithoutNode->expects($this->never())
            ->method('getNode');

        $provider = new FallbackNodeProvider([$providerWithoutNode, $providerWithNode, $anotherProviderWithoutNode]);
        $node = $provider->getNode();

        $this->assertSame('57764a07f756', $node->toString());
    }

    public function testGetNodeThrowsExceptionWhenNoNodesFound(): void
    {
        $providerWithoutNode = $this->getMockBuilder(NodeProviderInterface::class)->getMock();
        $providerWithoutNode->method('getNode')
            ->willThrowException(new NodeException());

        $provider = new FallbackNodeProvider([$providerWithoutNode]);

        $this->expectException(NodeException::class);
        $this->expectExceptionMessage(
            'Unable to find a suitable node provider'
        );

        $provider->getNode();
    }

    public function testSerializationOfNodeProviderCollection(): void
    {
        $staticNodeProvider = new StaticNodeProvider(new Hexadecimal('aabbccddeeff'));
        $randomNodeProvider = new RandomNodeProvider();
        $systemNodeProvider = new SystemNodeProvider();

        /** @var list<NodeProviderInterface> $unserializedNodeProviderCollection */
        $unserializedNodeProviderCollection = unserialize(serialize([
            $staticNodeProvider,
            $randomNodeProvider,
            $systemNodeProvider,
        ]));

        foreach ($unserializedNodeProviderCollection as $nodeProvider) {
            $this->assertInstanceOf(NodeProviderInterface::class, $nodeProvider);
            $this->assertInstanceOf(Hexadecimal::class, $nodeProvider->getNode());
        }
    }
}