<?php

namespace App\Domains\Prop\Support;

use App\Domains\Prop\Models\Prop;
use Closure;
use Illuminate\Database\Eloquent\Model;

class PropRules
{
    /**
     * @return array<string, mixed>
     */
    public static function sync(string $modelClass): array
    {
        return [
            'props' => [
                'sometimes',
                'array',
                static function (string $attribute, mixed $value, Closure $fail) use ($modelClass): void {
                    static::validatePropsForModel($attribute, $value, $fail, $modelClass);
                },
            ],
            'props.*' => ['nullable'],
        ];
    }

    protected static function validatePropsForModel(string $attribute, mixed $value, Closure $fail, string $modelClass): void
    {
        if (! is_array($value) || $value === []) {
            return;
        }

        if (! is_subclass_of($modelClass, Model::class)) {
            $fail("The {$attribute} field references an invalid propable model.");

            return;
        }

        $propCodes = array_map('strval', array_keys($value));
        $existingPropCodes = Prop::query()
            ->forModel($modelClass)
            ->whereIn('codigo', $propCodes)
            ->pluck('codigo')
            ->all();

        $missingPropCodes = array_values(array_diff($propCodes, $existingPropCodes));

        if ($missingPropCodes === []) {
            return;
        }

        $fail(sprintf(
            'The selected %s are invalid for %s: %s.',
            $attribute,
            class_basename($modelClass),
            implode(', ', $missingPropCodes),
        ));
    }
}