<?php

/*
 * This file is part of the Alice package.
 *
 * (c) Nelmio <hello@nelm.io>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Nelmio\Alice\Generator\Resolver\Parameter;

use Nelmio\Alice\Generator\Resolver\FakeParameterBagResolver;
use Nelmio\Alice\Generator\Resolver\ParameterBagResolverInterface;
use Nelmio\Alice\ParameterBag;
use PHPUnit\Framework\TestCase;
use Prophecy\Argument;

/**
 * @covers \Nelmio\Alice\Generator\Resolver\Parameter\RemoveConflictingParametersParameterBagResolver
 */
class RemoveConflictingParametersParameterBagResolverTest extends TestCase
{
    public function testIsAParameterBagResolver()
    {
        $this->assertTrue(is_a(RemoveConflictingParametersParameterBagResolver::class,
            ParameterBagResolverInterface::class,
            true));
    }

    /**
     * @expectedException \Nelmio\Alice\Throwable\Exception\UnclonableException
     */
    public function testIsNotClonable()
    {
        clone new RemoveConflictingParametersParameterBagResolver(new FakeParameterBagResolver());
    }

    public function testRemovesAllConflictingKeysFromInjectedParametersBagBeforeResolvingIt()
    {
        $unresolvedParameters = new ParameterBag([
            'foo' => '(unresolved) bar',
            'ping' => '(unresolved) pong',
        ]);
        $injectedParameters = new ParameterBag([
            'foo' => 'bar',
            'foz' => 'baz',
        ]);


        $decoratedResolverProphecy = $this->prophesize(ParameterBagResolverInterface::class);
        $decoratedResolverProphecy
            ->resolve(
                $unresolvedParameters,
                new ParameterBag(['foz' => 'baz'])
            )
            ->willReturn(
                $expected = new ParameterBag([
                    'foo' => '(resolved) bar',
                    'ping' => '(resolved) pong',
                    'foz' => 'baz',
                ])
            );
        /* @var ParameterBagResolverInterface $decoratedResolver */
        $decoratedResolver = $decoratedResolverProphecy->reveal();

        $resolver = new RemoveConflictingParametersParameterBagResolver($decoratedResolver);
        $actual = $resolver->resolve($unresolvedParameters, $injectedParameters);

        $this->assertEquals($expected, $actual);

        $decoratedResolverProphecy->resolve(Argument::cetera())->shouldHaveBeenCalledTimes(1);
    }

    public function testCanHandleTheCaseWhereNoParameterIsInjected()
    {
        $unresolvedParameters = new ParameterBag([
            'foo' => '(unresolved) bar',
            'ping' => '(unresolved) pong',
        ]);
        $injectedParameters = null;


        $decoratedResolverProphecy = $this->prophesize(ParameterBagResolverInterface::class);
        $decoratedResolverProphecy
            ->resolve(
                $unresolvedParameters,
                new ParameterBag()
            )
            ->willReturn(
                $expected = new ParameterBag([
                    'foo' => '(resolved) bar',
                    'ping' => '(resolved) pong',
                    'foz' => 'baz',
                ])
            );
        /* @var ParameterBagResolverInterface $decoratedResolver */
        $decoratedResolver = $decoratedResolverProphecy->reveal();

        $resolver = new RemoveConflictingParametersParameterBagResolver($decoratedResolver);
        $actual = $resolver->resolve($unresolvedParameters, $injectedParameters);

        $this->assertEquals($expected, $actual);

        $decoratedResolverProphecy->resolve(Argument::cetera())->shouldHaveBeenCalledTimes(1);
    }
}
