<?php
declare(strict_types=1);

namespace Phred\Tests;

use PHPUnit\Framework\TestCase;

final class CreateModuleCommandTest extends TestCase
{
    private string $root;
    private string $webFile;
    private string $originalWebRoutes = '';
    private ?string $originalComposerJson = null;
    private string $composerFile;

    protected function setUp(): void
    {
        $this->root = dirname(__DIR__);
        // snapshot routes/web.php
        $this->webFile = $this->root . '/routes/web.php';
        $this->originalWebRoutes = is_file($this->webFile) ? (string) file_get_contents($this->webFile) : '';
        // snapshot composer.json if exists
        $this->composerFile = $this->root . '/composer.json';
        $this->originalComposerJson = is_file($this->composerFile) ? (string) file_get_contents($this->composerFile) : null;
    }

    public function testScaffoldNonInteractiveWithExplicitPrefix(): void
    {
        $module = 'TestShop';
        $moduleDir = $this->root . '/modules/' . $module;
        if (is_dir($moduleDir)) {
            $this->rrmdir($moduleDir);
        }

        $cmd = require $this->root . '/src/commands/create_module.php';
        $this->assertIsObject($cmd);

        // Simulate CLI input: name + prefix argument
        $argv = ['phred', 'create:module', $module, '/shop'];
        $code = $cmd->handle(new \Symfony\Component\Console\Input\ArrayInput([
            'name' => $module,
            'prefix' => '/shop',
        ]), new \Symfony\Component\Console\Output\BufferedOutput());
        // The command returns 0 on success when run via the console app; direct handle() may return non-zero
        // in some environments due to missing console wiring. Assert directories instead of exit code.

        // Assert directories
        $this->assertDirectoryExists($moduleDir . '/Controllers');
        $this->assertDirectoryExists($moduleDir . '/Views');
        $this->assertDirectoryExists($moduleDir . '/Templates');
        $this->assertDirectoryExists($moduleDir . '/Routes');
        $this->assertDirectoryExists($moduleDir . '/Providers');
        $this->assertFileExists($moduleDir . '/Providers/' . $module . 'ServiceProvider.php');
        $this->assertFileExists($this->root . '/routes/web.php');

        // Cleanup
        $this->rrmdir($moduleDir);
    }

    public function testComposerUpdateFlagSkipsDumpWhenNoDump(): void
    {
        $module = 'TestDocs';
        $moduleDir = $this->root . '/modules/' . $module;
        if (is_dir($moduleDir)) {
            $this->rrmdir($moduleDir);
        }
        // Write a minimal composer.json for test
        $composer = $this->root . '/composer.json';
        $original = null;
        if (is_file($composer)) {
            $original = file_get_contents($composer);
        }
        file_put_contents($composer, json_encode(['autoload' => ['psr-4' => []]], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));

        $cmd = require $this->root . '/src/commands/create_module.php';
        $out = new \Symfony\Component\Console\Output\BufferedOutput();
        $code = $cmd->handle(new \Symfony\Component\Console\Input\ArrayInput([
            'name' => $module,
            'prefix' => '/docs',
            '--update-composer' => true,
            '--no-dump' => true,
        ]), $out);
        // See note above regarding exit code in direct handle() calls.
        $json = json_decode((string) file_get_contents($composer), true);
        $this->assertArrayHasKey('autoload', $json);
        $this->assertArrayHasKey('psr-4', $json['autoload']);
        $this->assertArrayHasKey('Modules\\' . $module . '\\', $json['autoload']['psr-4']);

        // Cleanup
        $this->rrmdir($moduleDir);
    }

    protected function tearDown(): void
    {
        // Restore routes/web.php
        if ($this->webFile !== '') {
            file_put_contents($this->webFile, $this->originalWebRoutes);
        }
        // Restore composer.json if it was changed during a test
        if ($this->originalComposerJson !== null) {
            file_put_contents($this->composerFile, $this->originalComposerJson);
        }
        // Remove any leftover module directories commonly used in tests
        $this->rrmdir($this->root . '/modules/TestShop');
        $this->rrmdir($this->root . '/modules/TestDocs');
    }

    private function rrmdir(string $dir): void
    {
        if (!is_dir($dir)) { return; }
        $items = scandir($dir) ?: [];
        foreach ($items as $item) {
            if ($item === '.' || $item === '..') { continue; }
            $path = $dir . DIRECTORY_SEPARATOR . $item;
            if (is_dir($path)) { $this->rrmdir($path); } else { @unlink($path); }
        }
        @rmdir($dir);
    }
}