<?php

namespace App\Livewire\Concerns;

use App\Enums\Portal;
use App\Enums\RegistrationType;
use Illuminate\Validation\Rule;

/**
 * Gemeinsame Validierungsregeln der Benutzer-Formulare (Anlegen/Bearbeiten).
 * Nur die zwischen beiden Formularen identischen Blöcke leben hier; die rein
 * im Bearbeiten genutzten Profil-/Kontakt-Regeln bleiben dort inline.
 */
trait ProvidesUserFormRules
{
    /**
     * Identitäts-Stammdaten. Beim Bearbeiten ignoriert die E-Mail-Unique-Regel
     * den eigenen Datensatz.
     *
     * @return array<string, mixed>
     */
    protected function userIdentityRules(?int $ignoreUserId = null): array
    {
        $emailUnique = Rule::unique('users', 'email');

        if ($ignoreUserId !== null) {
            $emailUnique = $emailUnique->ignore($ignoreUserId);
        }

        return [
            'name' => ['required', 'string', 'max:255'],
            'agencyName' => ['nullable', 'string', 'max:190'],
            'email' => ['required', 'email', $emailUnique],
            'portal' => ['required', Rule::in(array_map(static fn (Portal $portal): string => $portal->value, Portal::cases()))],
            'registrationType' => ['required', Rule::in(array_map(static fn (RegistrationType $type): string => $type->value, RegistrationType::cases()))],
            'language' => ['required', 'string', Rule::in(['de', 'en'])],
        ];
    }

    /**
     * Rollen-Auswahl plus Firmen-Verknüpfungen mit Pivot-Rolle.
     *
     * @return array<string, mixed>
     */
    protected function userRolesAndCompaniesRules(): array
    {
        return [
            'selectedRoles' => ['required', 'array', 'min:1'],
            'selectedRoles.*' => ['string', Rule::exists('roles', 'name')],
            'linkedCompanyIds' => ['array'],
            'linkedCompanyIds.*' => ['integer', Rule::exists('companies', 'id')],
            'companyRoles' => ['array'],
            'companyRoles.*' => ['string', Rule::in(['member', 'responsible', 'owner'])],
        ];
    }

    /**
     * Rechnungsadresse (optional; nur gespeichert, wenn vollständig).
     *
     * @return array<string, mixed>
     */
    protected function userBillingRules(): array
    {
        return [
            'billing.salutation_key' => ['nullable', 'string', 'max:20'],
            'billing.title' => ['nullable', 'string', 'max:80'],
            'billing.name' => ['nullable', 'string', 'max:255'],
            'billing.address1' => ['nullable', 'string', 'max:255'],
            'billing.address2' => ['nullable', 'string', 'max:255'],
            'billing.postal_code' => ['nullable', 'string', 'max:20'],
            'billing.city' => ['nullable', 'string', 'max:120'],
            'billing.country_code' => ['nullable', 'string', 'size:2'],
        ];
    }
}