<?php

use TypePhp\CompilerTest;

final class GeneratedCodeCommentTest extends BaseTest
{
    private function compileProbe(bool $debug): string
    {
        global $translator;

        $compiler = CompilerTest::create(ROOT_PATH);
        $translator = $compiler;
        if ($debug) {
            $property = new ReflectionProperty($compiler, 'debug');
            $property->setValue($compiler, true);
        }

        $source = ROOT_PATH . '/phpunit/code/generated-code-comments.php';
        $compiler->addFiles([$source]);
        $compiler->prepareFile($source);
        $generated = $compiler->convertFile($source);
        $code = file_get_contents($generated);
        self::assertIsString($code);
        return $code;
    }

    private function compileFile(string $file): string
    {
        global $translator;

        $compiler = CompilerTest::create(ROOT_PATH);
        $translator = $compiler;
        $source = ROOT_PATH . '/phpunit/code/' . $file;
        $compiler->addFiles([$source]);
        $compiler->prepareFile($source);
        $generated = $compiler->convertFile($source);
        self::assertNotNull($generated);
        $code = file_get_contents($generated);
        self::assertIsString($code);
        return $code;
    }

    public function testReleaseCodeOmitsCompilerExplanatoryComments(): void
    {
        $code = $this->compileProbe(false);

        self::assertStringNotContainsString('// Stmt_', $code);
        self::assertStringNotContainsString('// Nullsafe Operator:', $code);
        self::assertStringNotContainsString('// Method Call:', $code);
    }

    public function testDebugCodeKeepsCompilerExplanatoryComments(): void
    {
        $code = $this->compileProbe(true);

        self::assertStringContainsString('// Stmt_', $code);
        self::assertStringContainsString('// Nullsafe Operator:', $code);
    }

    public function testCompileTimeUseDeclarationsDoNotEmitBlankLines(): void
    {
        $code = $this->compileFile('generated-code-use-spacing.php');

        self::assertDoesNotMatchRegularExpression('/0,};(?:[ \t]*\R){3,}/', $code);
    }
}