<?php

use App\Http\Controllers\SystemStatusController;
use App\Models\Role;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

function withFakeBinForStatus(array $scripts, callable $callback): void
{
    $dir = storage_path('app/test-bin-' . Str::random(6));
    if (!is_dir($dir)) {
        mkdir($dir, 0777, true);
    }

    foreach ($scripts as $name => $body) {
        $path = $dir . DIRECTORY_SEPARATOR . $name;
        file_put_contents($path, $body);
        chmod($path, 0755);
    }

    $originalPath = getenv('PATH') ?: '';
    putenv("PATH={$dir}");
    $_ENV['PATH'] = $dir;
    $_SERVER['PATH'] = $dir;

    try {
        $callback($dir);
    } finally {
        putenv("PATH={$originalPath}");
        $_ENV['PATH'] = $originalPath;
        $_SERVER['PATH'] = $originalPath;
        if (is_dir($dir)) {
            $items = scandir($dir);
            if (is_array($items)) {
                foreach ($items as $item) {
                    if ($item === '.' || $item === '..') {
                        continue;
                    }
                    $path = $dir . DIRECTORY_SEPARATOR . $item;
                    if (is_file($path)) {
                        unlink($path);
                    }
                }
            }
            rmdir($dir);
        }
    }
}

it('returns system status for admins', function (): void {
    withFakeBinForStatus([
        'php' => "#!/bin/sh\nif [ \"$1\" = \"-r\" ]; then echo \"8.4.0\"; exit 0; fi\necho \"php\"\n",
        'composer' => "#!/bin/sh\necho \"composer 2.0.0\"\n",
        'node' => "#!/bin/sh\necho \"v20.0.0\"\n",
        'npm' => "#!/bin/sh\necho \"9.0.0\"\n",
        'tar' => "#!/bin/sh\necho \"tar 1.2.3\"\n",
        'rsync' => "#!/bin/sh\necho \"rsync 3.2.0\"\n",
    ], function (string $dir): void {
        $admin = User::factory()->create();
        $role = Role::firstOrCreate(['name' => 'ROLE_ADMIN'], ['color' => '#111111']);
        $admin->roles()->attach($role);

        $request = Request::create('/api/system/status', 'GET');
        $request->setUserResolver(fn () => $admin);

        $controller = new SystemStatusController();
        $response = $controller->__invoke($request);

        expect($response->getStatusCode())->toBe(200);
        $payload = $response->getData(true);

        expect($payload)->toHaveKeys([
            'php',
            'php_default',
            'composer',
            'composer_version',
            'node',
            'node_version',
            'npm',
            'npm_version',
            'tar',
            'tar_version',
            'rsync',
            'rsync_version',
            'proc_functions',
            'storage_writable',
            'updates_writable',
        ]);
    });
});

it('covers binary resolution edge cases', function (): void {
    withFakeBinForStatus([
        'sh' => "#!/bin/sh\nexit 0\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refBinary = new ReflectionMethod($controller, 'resolveBinary');
        $refBinary->setAccessible(true);

        expect($refBinary->invoke($controller, 'php'))->toBeNull();
    });
});

it('returns php version when available', function (): void {
    withFakeBinForStatus([
        'phpfake' => "#!/bin/sh\nif [ \"$1\" = \"-r\" ]; then echo \"8.4.1\"; exit 0; fi\nexit 0\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refPhp = new ReflectionMethod($controller, 'resolvePhpVersion');
        $refPhp->setAccessible(true);

        $path = $dir . '/phpfake';
        expect($refPhp->invoke($controller, $path))->toBe('8.4.1');
    });
});

it('returns null php version when command fails', function (): void {
    withFakeBinForStatus([
        'phpfail' => "#!/bin/sh\nexit 1\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refPhp = new ReflectionMethod($controller, 'resolvePhpVersion');
        $refPhp->setAccessible(true);

        $path = $dir . '/phpfail';
        expect($refPhp->invoke($controller, $path))->toBeNull();
    });
});

it('returns binary version when regex matches', function (): void {
    withFakeBinForStatus([
        'tool' => "#!/bin/sh\necho \"tool v1.2.3\"\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refVer = new ReflectionMethod($controller, 'resolveBinaryVersion');
        $refVer->setAccessible(true);

        $path = $dir . '/tool';
        expect($refVer->invoke($controller, $path, ['--version']))->toBe('1.2.3');
    });
});

it('returns null when binary version output is empty', function (): void {
    withFakeBinForStatus([
        'empty' => "#!/bin/sh\nexit 0\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refVer = new ReflectionMethod($controller, 'resolveBinaryVersion');
        $refVer->setAccessible(true);

        $path = $dir . '/empty';
        expect($refVer->invoke($controller, $path, ['--version']))->toBeNull();
    });
});

it('returns null when binary version output has no version', function (): void {
    withFakeBinForStatus([
        'noversion' => "#!/bin/sh\necho \"tool version unknown\"\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refVer = new ReflectionMethod($controller, 'resolveBinaryVersion');
        $refVer->setAccessible(true);

        $path = $dir . '/noversion';
        expect($refVer->invoke($controller, $path, ['--version']))->toBeNull();
    });
});

it('returns null when binary version command fails', function (): void {
    withFakeBinForStatus([
        'fail' => "#!/bin/sh\nexit 1\n",
    ], function (string $dir): void {
        $controller = new SystemStatusController();
        $refVer = new ReflectionMethod($controller, 'resolveBinaryVersion');
        $refVer->setAccessible(true);

        $path = $dir . '/fail';
        expect($refVer->invoke($controller, $path, ['--version']))->toBeNull();
    });
});

it('returns empty array when readJson cannot read file', function (): void {
    $controller = new SystemStatusController();
    $ref = new ReflectionMethod($controller, 'readJson');
    $ref->setAccessible(true);

    $path = sys_get_temp_dir() . '/missing.json';
    $result = $ref->invoke($controller, $path);

    expect($result)->toBe([]);
});

it('returns empty array when readJson invalid', function (): void {
    $controller = new SystemStatusController();
    $ref = new ReflectionMethod($controller, 'readJson');
    $ref->setAccessible(true);

    $path = sys_get_temp_dir() . '/invalid.json';
    file_put_contents($path, 'not-json');

    $result = $ref->invoke($controller, $path);
    unlink($path);

    expect($result)->toBe([]);
});

it('returns empty array when readJson cannot read contents', function (): void {
    $controller = new SystemStatusController();
    $ref = new ReflectionMethod($controller, 'readJson');
    $ref->setAccessible(true);

    $path = storage_path('app/unreadable.json');
    file_put_contents($path, '{"a":1}');
    chmod($path, 0000);

    $prev = set_error_handler(static fn () => true);
    $result = $ref->invoke($controller, $path);
    restore_error_handler();

    chmod($path, 0644);
    unlink($path);

    expect($result)->toBe([]);
});