<?php

declare(strict_types=1);

namespace App\Http\Requests\Api\V1;

use App\Enums\FieldDisplayWidth;
use App\Enums\RegistrationFieldType;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

final class StoreRegistrationFormFieldRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    /** @return array<string, mixed> */
    public function rules(): array
    {
        $fieldType = $this->input('field_type');
        $type = RegistrationFieldType::tryFrom($fieldType);

        $rules = [
            'label' => ['required', 'string', 'max:255'],
            'field_type' => ['required', Rule::in(array_column(RegistrationFieldType::cases(), 'value'))],
            'help_text' => ['nullable', 'string', 'max:5000'],
            'sort_order' => ['nullable', 'integer', 'min:0'],
            'display_width' => ['sometimes', Rule::in(array_column(FieldDisplayWidth::cases(), 'value'))],
        ];

        if ($type?->isStructural()) {
            return $rules;
        }

        return array_merge($rules, [
            'options' => [
                $type?->requiresOptions() ? 'required' : 'nullable',
                $type?->prohibitsOptions() ? 'prohibited' : 'nullable',
                'array',
            ],
            'options.*' => ['required'],
            'options.*.label' => ['required_if:options.*,array', 'string', 'max:255'],
            'options.*.description' => ['nullable', 'string', 'max:200'],
            'tag_category' => [
                $type === RegistrationFieldType::TAG_PICKER ? 'nullable' : 'prohibited',
                'string',
                'max:50',
            ],
            'is_required' => ['nullable', 'boolean'],
            'is_portal_visible' => ['nullable', 'boolean'],
            'is_admin_only' => ['nullable', 'boolean'],
            'is_filterable' => ['nullable', 'boolean'],
        ]);
    }
}