<?php

namespace App\Models;

use App\Enums\NewsletterCampaignStatus;
use App\Services\Newsletter\CampaignRecipients;
use Database\Factories\NewsletterCampaignFactory;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Support\HtmlString;
use Mews\Purifier\Facades\Purifier;

/**
 * Interne Newsletter-Kampagne (Admin ▸ Newsletter): Betreff + leicht
 * formatierter Text an gefilterte Bestands-User. `filters` hält die
 * Empfänger-Auswahl als Snapshot ({@see CampaignRecipients}),
 * die Empfänger-Zeilen bilden das Versand-Protokoll.
 */
class NewsletterCampaign extends Model
{
    /** @use HasFactory<NewsletterCampaignFactory> */
    use HasFactory;

    protected $fillable = [
        'subject',
        'body',
        'filters',
        'status',
        'created_by_user_id',
        'recipients_total',
        'sent_count',
        'failed_count',
        'skipped_count',
        'sent_at',
    ];

    protected function casts(): array
    {
        return [
            'filters' => 'array',
            'status' => NewsletterCampaignStatus::class,
            'sent_at' => 'datetime',
        ];
    }

    /**
     * @return BelongsTo<User, $this>
     */
    public function createdBy(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by_user_id');
    }

    /**
     * @return HasMany<NewsletterCampaignRecipient, $this>
     */
    public function recipients(): HasMany
    {
        return $this->hasMany(NewsletterCampaignRecipient::class);
    }

    public function isDraft(): bool
    {
        return $this->status === NewsletterCampaignStatus::Draft;
    }

    /**
     * Versandfertiger, gesäuberter Inhalt: nur leichtes HTML laut
     * Purifier-Profil `newsletter` (fett/kursiv, Listen, Links).
     */
    public function sanitizedBody(): HtmlString
    {
        return new HtmlString((string) Purifier::clean($this->body ?? '', 'newsletter'));
    }
}