<?php

declare(strict_types=1);

namespace Uwil\Storage\Tests\Unit\Lib;

use Uwil\Storage\Config\StorageServiceConfig;
use Uwil\Storage\Lib\Utils;

covers(Utils::class);

enum TestUtilsBackedEnum: string
{
    case Local   = 'local';
    case Unknown = 'unknown_disk';
}

enum TestUtilsUnitEnum
{
    case local;
    case unknown_disk;
}

describe('Utils diskExists', function (): void {
    it('returns true when disk exists in storage', function (): void {
        // GIVEN
        $disk = 'local';

        // WHEN
        $exists = Utils::diskExists($disk);

        // THEN
        expect($exists)->toBeTrue();
    });

    it('returns false when disk does not exist in storage', function (): void {
        // GIVEN
        $disk = 'unknown_disk_xyz';

        // WHEN
        $exists = Utils::diskExists($disk);

        // THEN
        expect($exists)->toBeFalse();
    });

    it('handles BackedEnum instances', function (): void {
        // GIVEN / WHEN
        $existsLocal   = Utils::diskExists(TestUtilsBackedEnum::Local);
        $existsUnknown = Utils::diskExists(TestUtilsBackedEnum::Unknown);

        // THEN
        expect($existsLocal)->toBeTrue()
            ->and($existsUnknown)->toBeFalse();
    });

    it('handles UnitEnum instances', function (): void {
        // GIVEN / WHEN
        $existsLocal   = Utils::diskExists(TestUtilsUnitEnum::local);
        $existsUnknown = Utils::diskExists(TestUtilsUnitEnum::unknown_disk);

        // THEN
        expect($existsLocal)->toBeTrue()
            ->and($existsUnknown)->toBeFalse();
    });
});

describe('Utils isExtensionAllowed', function (): void {
    it('delegates to resolved StorageServiceConfig', function (): void {
        // GIVEN
        $config = new StorageServiceConfig(
            defaultDisk: 'local',
            eligibleDisks: ['local'],
            laravelExistingDisks: [(object) ['disk' => 'local', 'driver' => 'local']],
            allowedExtensions: ['pdf', 'txt']
        );
        app()->instance(StorageServiceConfig::class, $config);

        // WHEN
        $pdfAllowed = Utils::isExtensionAllowed('pdf');
        $exeAllowed = Utils::isExtensionAllowed('exe');

        // THEN
        expect($pdfAllowed)->toBeTrue()
            ->and($exeAllowed)->toBeFalse();
    });

    it('returns true as safe fallback when StorageServiceConfig resolution fails', function (): void {
        // GIVEN
        app()->forgetInstance(StorageServiceConfig::class);
        app()->bind(StorageServiceConfig::class, function () {
            throw new \RuntimeException('Config not bound');
        });

        // WHEN
        $fallback = Utils::isExtensionAllowed('any_ext');

        // THEN
        expect($fallback)->toBeTrue();
    });
});