<?php
declare(strict_types=1);

namespace LanguageServer\Tests\Server\TextDocument\References;

use LanguageServer\{LanguageClient, PhpDocumentLoader, Server, DefinitionResolver};
use LanguageServer\ContentRetriever\FileSystemContentRetriever;
use LanguageServer\Index\{DependenciesIndex, Index, ProjectIndex};
use LanguageServerProtocol\{Location, Position, Range, ReferenceContext, TextDocumentIdentifier};
use LanguageServer\Tests\MockProtocolStream;
use LanguageServer\Tests\Server\ServerTestCase;

class GlobalFallbackTest extends ServerTestCase
{
    public function setUp()
    {
        $projectIndex = new ProjectIndex(new Index(), new DependenciesIndex());
        $projectIndex->setComplete();
        $definitionResolver = new DefinitionResolver($projectIndex);
        $client = new LanguageClient(new MockProtocolStream(), new MockProtocolStream());
        $this->documentLoader = new PhpDocumentLoader(
            new FileSystemContentRetriever(),
            $projectIndex,
            $definitionResolver
        );
        $this->textDocument = new Server\TextDocument(
            $this->documentLoader,
            $definitionResolver,
            $client,
            $projectIndex
        );
        $this->documentLoader->open(
            'global_fallback',
            file_get_contents(__DIR__ . '/../../../../fixtures/global_fallback.php')
        );
        $this->documentLoader->open(
            'global_symbols',
            file_get_contents(__DIR__ . '/../../../../fixtures/global_symbols.php')
        );
    }

    public function testClassDoesNotFallback()
    {
        // class TestClass implements TestInterface
        // Get references for TestClass
        $result = $this->textDocument
            ->references(new ReferenceContext(), new TextDocumentIdentifier('global_symbols'), new Position(6, 9))
            ->wait();
        $this->assertEquals([], $result);
    }

    public function testFallsBackForConstants()
    {
        // const TEST_CONST = 123;
        // Get references for TEST_CONST
        $result = $this->textDocument
            ->references(new ReferenceContext(), new TextDocumentIdentifier('global_symbols'), new Position(9, 13))
            ->wait();
        $this->assertEquals(
            [new Location('global_fallback', new Range(new Position(6, 5), new Position(6, 15)))],
            $result
        );
    }

    public function testFallsBackForFunctions()
    {
        // function test_function()
        // Get references for test_function
        $result = $this->textDocument
            ->references(new ReferenceContext(), new TextDocumentIdentifier('global_symbols'), new Position(78, 16))
            ->wait();
        $this->assertEquals(
            [new Location('global_fallback', new Range(new Position(5, 0), new Position(5, 13)))],
            $result
        );
    }
}