<?php

declare(strict_types=1);

namespace App\Models\FormBuilder;

use App\Enums\FormBuilder\FormFieldValidationRuleType;
use App\Models\Scopes\FormFieldValidationRuleScope;
use Illuminate\Database\Eloquent\Concerns\HasUlids;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\MorphTo;

/**
 * Relational home for what was `form_fields.validation_rules` and
 * `form_field_library.validation_rules` JSON. Polymorphic owner — morph
 * aliases `form_field` and `form_field_library`. See ARCH-FORM-BUILDER
 * §17.4 and ARCH-CONSOLIDATION-ADDENDUM-2026-04-24 §Q3.
 *
 * One row per (owner, rule_type). `parameters` JSON holds the rule-type-
 * specific configuration (e.g. `{ "value": 3 }` for `min_length`, or
 * `{ "mime_types": [...] }` for `allowed_mime_types`). Parameter shape
 * validation lives in `FormFieldValidationRuleService`, not on the model.
 */
final class FormFieldValidationRule extends Model
{
    use HasFactory;
    use HasUlids;

    protected $table = 'form_field_validation_rules';

    protected static function booted(): void
    {
        static::addGlobalScope(new FormFieldValidationRuleScope());
    }

    protected $fillable = [
        'owner_type',
        'owner_id',
        'rule_type',
        'parameters',
        'error_message_key',
    ];

    /** @var array<string, string> */
    protected $casts = [
        'rule_type' => FormFieldValidationRuleType::class,
        'parameters' => 'array',
    ];

    public function owner(): MorphTo
    {
        return $this->morphTo('owner', 'owner_type', 'owner_id');
    }
}