<?php

namespace App\Livewire\Concerns;

use Closure;
use Illuminate\Validation\Rule;

/**
 * Gemeinsame Validierungsregeln der PM-Editoren (Admin + Customer).
 *
 * Liefert alle in allen vier Editoren identischen Regeln (Inhaltsfelder,
 * Veröffentlichungsmodus, terminabhängiger Scheduling-Block, Embargo). Die
 * nutzende Komponente ergänzt in `formRules()` nur die unterschiedlichen
 * Schlüssel (`portal` nur im Admin, `companyId` mit/ohne `exists`).
 *
 * Setzt [[InteractsWithPressReleaseScheduling]] voraus (nutzt `$publishMode`
 * und `resolveScheduledAt()`).
 *
 * @return array<string, array<int, mixed>>
 */
trait ProvidesPressReleaseFormRules
{
    /**
     * @return array<string, array<int, mixed>>
     */
    protected function baseFormRules(): array
    {
        $rules = [
            'language' => ['required', Rule::in(['de', 'en'])],
            'categoryId' => ['required', 'integer', Rule::exists('categories', 'id')],
            'contactId' => ['nullable', 'integer'],
            'title' => ['required', 'string', 'min:5', 'max:255'],
            'subtitle' => ['nullable', 'string', 'max:255'],
            'text' => ['required', 'string', 'min:50'],
            'keywords' => ['nullable', 'string', 'max:255'],
            'backlinkUrl' => ['nullable', 'url', 'max:255'],
            'boilerplateOverride' => ['nullable', 'string', 'max:5000'],
            'publishMode' => ['required', Rule::in(['now', 'scheduled'])],
        ];

        // Termin-Pflicht nur, wenn der User explizit Scheduling gewählt hat.
        // Min. 5 Minuten in der Zukunft, damit der Background-Job (alle 5 Min)
        // die PM verlässlich rechtzeitig fängt.
        if ($this->publishMode === 'scheduled') {
            $rules['scheduledDate'] = ['required', 'date'];
            $rules['scheduledTime'] = ['required', 'date_format:H:i'];
            $rules['scheduledAt'] = [
                'required',
                'date',
                // Termin wird in Europe/Berlin erfasst; deshalb hier zeitzonen-
                // bewusst prüfen statt über die naive `after:`-Regel.
                function (string $attribute, mixed $value, Closure $fail): void {
                    $scheduledAt = $this->resolveScheduledAt();

                    if ($scheduledAt === null || $scheduledAt->lessThanOrEqualTo(now()->addMinutes(5))) {
                        $fail(__('Der Veröffentlichungstermin muss mindestens 5 Minuten in der Zukunft liegen.'));
                    }
                },
            ];
        } else {
            $rules['scheduledDate'] = ['nullable'];
            $rules['scheduledTime'] = ['nullable'];
            $rules['scheduledAt'] = ['nullable'];
        }

        $rules['embargoAt'] = ['nullable'];

        return $rules;
    }
}