ladill-servers/app/Models/Mailbox.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class Mailbox extends Model
{
    use HasFactory;

    public static function defaultQuotaMb(): int
    {
        return (int) config('mailinfra.default_mailbox_quota_mb', 10240);
    }

    protected $fillable = [
        'user_id',
        'website_id',
        'hosting_account_id',
        'domain_id',
        'email_domain_id',
        'display_name',
        'local_part',
        'address',
        'password_hash',
        'quota_mb',
        'disk_used_bytes',
        'last_usage_sync_at',
        'status',
        'is_paid',
        'payment_reference',
        'paid_at',
        'billing_type',
        'monthly_price',
        'subscription_started_at',
        'subscription_expires_at',
        'subscription_status',
        'maildir_path',
        'credentials_issued_at',
        'incoming_token',
        'inbound_enabled',
        'outbound_enabled',
        'outbound_provider',
        'smtp_host',
        'smtp_port',
        'smtp_encryption',
        'smtp_username',
        'smtp_password',
        'from_name',
        'from_address',
        'metadata',
        'webmail_secret',
    ];

    protected $casts = [
        'inbound_enabled' => 'boolean',
        'outbound_enabled' => 'boolean',
        'is_paid' => 'boolean',
        'paid_at' => 'datetime',
        'monthly_price' => 'decimal:2',
        'subscription_started_at' => 'datetime',
        'subscription_expires_at' => 'datetime',
        'smtp_password' => 'encrypted',
        'quota_mb' => 'integer',
        'disk_used_bytes' => 'integer',
        'last_usage_sync_at' => 'datetime',
        'credentials_issued_at' => 'datetime',
        'metadata' => 'array',
    ];

    protected $hidden = [
        'password_hash',
        'webmail_secret',
        'incoming_token',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function website(): BelongsTo
    {
        return $this->belongsTo(Website::class);
    }

    public function domain(): BelongsTo
    {
        return $this->belongsTo(Domain::class);
    }

    public function hostingAccount(): BelongsTo
    {
        return $this->belongsTo(HostingAccount::class);
    }

    public function emailDomain(): BelongsTo
    {
        return $this->belongsTo(EmailDomain::class);
    }

    public function threads(): HasMany
    {
        return $this->hasMany(MailThread::class);
    }

    public function messages(): HasMany
    {
        return $this->hasMany(MailMessage::class);
    }

    public function isStandalone(): bool
    {
        return $this->website_id === null && $this->email_domain_id !== null;
    }

    public function isWebsiteLinked(): bool
    {
        return $this->website_id !== null;
    }

    public function getDomainHostAttribute(): ?string
    {
        if ($this->emailDomain) {
            return $this->emailDomain->domain;
        }

        if ($this->domain) {
            return $this->domain->host;
        }

        $parts = explode('@', $this->address ?? '', 2);
        return $parts[1] ?? null;
    }

    public function getOwnerIdAttribute(): ?int
    {
        if ($this->user_id) {
            return $this->user_id;
        }

        if ($this->website) {
            return $this->website->owner_user_id;
        }

        return null;
    }
}