Implement 2D domain processing - mainly for fidonet

app/Models/Address.php

@@ -402,7 +402,7 @@ class Address extends Model
 					return $q
 						->where(function($q) use ($ftn) {
 							return $q->where('region_id',$ftn['n'])
-								->where('host_id',0);
+								->where('host_id',$ftn['n']);
 						});
 				})
 				->where('node_id',$ftn['f'])
@@ -433,7 +433,7 @@ class Address extends Model
 				return $q->where(function($qq) use ($ftn) {
 					return $qq
 						->where('region_id',$ftn['n'])
-						->where('host_id',0);
+						->where('host_id',$ftn['n']);
 					})
 					->orWhere(function($qq) use ($ftn) {
 					return $qq
@@ -513,6 +513,50 @@ class Address extends Model
 		return ($o && $o->system->active) ? $o : NULL;
 	}
 
+	/**
+	 * This is to find an address for a domain (like fidonet), which is technically 2D even though it uses multiple zones.
+	 *
+	 * This was implemented to identify seenby and path kludges
+	 *
+	 * @param Domain $do
+	 * @param int $host
+	 * @param int $node
+	 * @param bool $trashed
+	 * @return self|null
+	 * @throws \Exception
+	 */
+	public static function findZone(Domain $do,int $host,int $node,bool $trashed=FALSE): ?self
+	{
+		if (! $do->flatten)
+			throw new \Exception(sprintf('Domain is not set with flatten: %d',$do->id));
+
+		$zones = $do->zones->pluck('zone_id');
+
+		$o = (new self)
+			->select('addresses.*')
+			->join('zones',['zones.id'=>'addresses.zone_id'])
+			//->join('domains',['domains.id'=>'zones.domain_id'])
+			->when($trashed,function($query) {
+				$query->trashed();
+			},function($query) {
+				$query->active();
+			})
+			->whereIN('zones.zone_id',$zones)
+			->where(function($q) use ($host) {
+				return $q
+					->where(function($q) use ($host) {
+						return $q->where('region_id',$host)
+							->where('host_id',$host);
+					})
+					->orWhere('host_id',$host);
+			})
+			->where('node_id',$node)
+			->where('zones.domain_id',$do->id)
+			->single();
+
+		return $o;
+	}
+
 	/**
 	 * Create an activation code for this address
 	 *