<?php

declare(strict_types=1);

namespace App\Casts;

use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
use Illuminate\Database\Eloquent\Model;
use Uwil\Storage\Lib\ValueObjects\StorageFilePath;

/** @implements CastsAttributes<StorageFilePath|null, StorageFilePath|string|null> */
class FilePathCast implements CastsAttributes
{
    /** @param  array<string, mixed>  $attributes */
    public function get(Model $model, string $key, mixed $value, array $attributes): ?StorageFilePath
    {
        if ($value === null) {
            return null;
        }

        if (! is_string($value)) {
            throw new \InvalidArgumentException('The given value is not a valid file path string.');
        }

        return new StorageFilePath($value);
    }

    /** @param  array<string, mixed>  $attributes */
    public function set(Model $model, string $key, mixed $value, array $attributes): ?string
    {
        if ($value === null) {
            return null;
        }

        if ($value instanceof StorageFilePath) {
            return $value->value;
        }

        if (is_string($value)) {
            return (new StorageFilePath($value))->value;
        }

        throw new \InvalidArgumentException('The given value is not a valid StorageFilePath instance or path string.');
    }
}