<?php

namespace App\Observers;

use App\Enums\ActivityType;
use App\Models\ContactMessage;
use App\Models\LegalRequest;
use App\Models\NewsletterSubscription;
use App\Models\TerminationRequest;
use App\Models\WithdrawalRequest;
use App\Services\ActivityLog;
use Illuminate\Database\Eloquent\Model;

/**
 * Protokolliert Formular-Eingänge im Aktivitäts-Verlauf — überall dort,
 * wo das Anlegen des Datensatzes selbst das Ereignis ist (Kontakt,
 * Rechtsanfrage, Widerruf, Kündigung, Newsletter-Anmeldung).
 */
class ActivityLogObserver
{
    public function __construct(private readonly ActivityLog $activityLog) {}

    public function created(Model $model): void
    {
        match (true) {
            $model instanceof ContactMessage => $this->activityLog->record(
                ActivityType::ContactRequest,
                sprintf('Kontaktanfrage „%s“ von %s (%s).', $model->topic->label(), $model->name, $model->email),
                user: $model->user,
                subject: $model,
                actorLabel: (string) ($model->name ?: $model->email),
                meta: ['portal' => $this->stringable($model->portal)],
            ),
            $model instanceof LegalRequest => $this->activityLog->record(
                ActivityType::LegalRequest,
                sprintf('Rechtsanfrage (%s) von %s.', $model->type->label(), $model->requester_email),
                subject: $model,
                actorLabel: (string) $model->requester_email,
                meta: ['type' => $model->type->value, 'press_release_id' => $model->press_release_id],
            ),
            $model instanceof WithdrawalRequest => $this->activityLog->record(
                ActivityType::WithdrawalRequest,
                sprintf('Widerruf eingegangen von %s (%s).', $model->name, $model->email),
                subject: $model,
                actorLabel: (string) ($model->name ?: $model->email),
            ),
            $model instanceof TerminationRequest => $this->activityLog->record(
                ActivityType::TerminationRequest,
                sprintf('Kündigung (%s) von %s (%s).', $model->kind, $model->name, $model->email),
                subject: $model,
                actorLabel: (string) ($model->name ?: $model->email),
                meta: ['kind' => $model->kind],
            ),
            $model instanceof NewsletterSubscription => $this->activityLog->record(
                ActivityType::NewsletterSubscription,
                sprintf('Newsletter-Anmeldung von %s.', $model->email),
                subject: $model,
                actorLabel: (string) $model->email,
                meta: ['portal' => $this->stringable($model->portal)],
            ),
            default => null,
        };
    }

    private function stringable(mixed $value): ?string
    {
        return $value instanceof \BackedEnum ? (string) $value->value : ($value !== null ? (string) $value : null);
    }
}