create host connection for creating, deleting tenants

src/Database/DatabaseConfig.php

@@ -100,6 +100,11 @@ class DatabaseConfig
             ?? config('tenancy.database.central_connection');
     }
 
+    public function getTenantHostConnectionName(): ?string
+    {
+        return config('tenancy.database.tenant_host_connection_name');
+    }
+
     /**
      * Tenant's own database connection config.
      */
@@ -114,6 +119,27 @@ class DatabaseConfig
         );
     }
 
+    /**
+     * Tenant's host database connection config.
+     */
+    public function hostConnection(): array
+    {
+        $config = $this->tenantConfig();
+        $template = $this->getTemplateConnectionName();
+        $templateConnection = config("database.connections.{$template}");
+
+        if ($this->manager() instanceof Contracts\ManagesDatabaseUsers) {
+            unset($config['username']);
+            unset($config['password']);
+        }
+
+        if (empty($config)) {
+            $config = $templateConnection;
+        }
+
+        return array_replace($templateConnection, $config);
+    }
+
     /**
      * Additional config for the database connection, specific to this tenant.
      */
@@ -158,4 +184,25 @@ class DatabaseConfig
 
         return $databaseManager;
     }
+
+    /** Get the TenantDatabaseManager for this tenant's connection. */
+    public function hostManager(): Contracts\TenantDatabaseManager
+    {
+        $tenantHostConnection = $this->getTenantHostConnectionName();
+        config(["database.connections.{$tenantHostConnection}" => $this->hostConnection()]);
+
+        $driver = config("database.connections.{$tenantHostConnection}.driver");
+        $databaseManagers = config('tenancy.database.managers');
+
+        if (! array_key_exists($driver, $databaseManagers)) {
+            throw new Exceptions\DatabaseManagerNotRegisteredException($driver);
+        }
+
+        /** @var Contracts\TenantDatabaseManager $databaseManager */
+        $databaseManager = app($databaseManagers[$driver]);
+
+        $databaseManager->setConnection($tenantHostConnection);
+
+        return $databaseManager;
+    }
 }

src/Database/DatabaseManager.php

@@ -88,7 +88,7 @@ class DatabaseManager
      */
     public function ensureTenantCanBeCreated(TenantWithDatabase $tenant): void
     {
-        $manager = $tenant->database()->manager();
+        $manager = $tenant->database()->hostManager();
 
         if ($manager->databaseExists($database = $tenant->database()->getName())) {
             throw new Exceptions\TenantDatabaseAlreadyExistsException($database);

src/Database/TenantDatabaseManagers/TenantDatabaseManager.php

@@ -20,6 +20,10 @@ abstract class TenantDatabaseManager implements Contract // todo better naming?
             throw new NoConnectionSetException(static::class);
         }
 
+        if (config("database.connections.{$this->getTenantHostConnectionName()}")) {
+            // DB::purge($this->getTenantHostConnectionName());
+        }
+
         return DB::connection($this->connection);
     }
 
@@ -34,4 +38,9 @@ abstract class TenantDatabaseManager implements Contract // todo better naming?
 
         return $baseConfig;
     }
+
+    public function getTenantHostConnectionName(): ?string
+    {
+        return config('tenancy.database.tenant_host_connection_name');
+    }
 }

src/Jobs/CreateDatabase.php

@@ -35,7 +35,7 @@ class CreateDatabase implements ShouldQueue
 
         $this->tenant->database()->makeCredentials();
         $databaseManager->ensureTenantCanBeCreated($this->tenant);
-        $this->tenant->database()->manager()->createDatabase($this->tenant);
+        $this->tenant->database()->hostManager()->createDatabase($this->tenant);
 
         event(new DatabaseCreated($this->tenant));
     }

src/Jobs/DeleteDatabase.php

@@ -27,7 +27,7 @@ class DeleteDatabase implements ShouldQueue
     {
         event(new DeletingDatabase($this->tenant));
 
-        $this->tenant->database()->manager()->deleteDatabase($this->tenant);
+        $this->tenant->database()->hostManager()->deleteDatabase($this->tenant);
 
         event(new DatabaseDeleted($this->tenant));
     }