Revert "Revert "agent: do not create user record in new databases (#957)" (#963)" (#964)

* Revert "Revert "agent: do not create user record in new databases (#957)" (#963)"

This reverts commit aee9088417.

* tests

* remove logging

src/Simplex/Messaging/Agent/Store/SQLite/Migrations.hs

@@ -128,9 +128,12 @@ run st = \case
   where
     runUp Migration {name, up, down} = withTransaction' st $ \db -> do
       when (name == "m20220811_onion_hosts") $ updateServers db
-      insert db >> execSQL db up
+      insert db >> execSQL db up'
       where
         insert db = DB.execute db "INSERT INTO migrations (name, down, ts) VALUES (?,?,?)" . (name,down,) =<< getCurrentTime
+        up'
+          | dbNew st && name == "m20230110_users" = fromQuery new_m20230110_users
+          | otherwise = up
         updateServers db = forM_ (M.assocs extraSMPServerHosts) $ \(h, h') ->
           let hs = decodeLatin1 . strEncode $ ([h, h'] :: NonEmpty TransportHost)
            in DB.execute db "UPDATE servers SET host = ? WHERE host = ?" (hs, decodeLatin1 $ strEncode h)

src/Simplex/Messaging/Agent/Store/SQLite/Migrations/M20230110_users.hs

@@ -27,3 +27,24 @@ UPDATE connections SET user_id = 1;
 
 PRAGMA ignore_check_constraints=OFF;
 |]
+
+-- This is executed in the new database
+-- It does not create new user record
+new_m20230110_users :: Query
+new_m20230110_users =
+  [sql|
+PRAGMA ignore_check_constraints=ON;
+
+CREATE TABLE users (
+  user_id INTEGER PRIMARY KEY AUTOINCREMENT
+);
+
+ALTER TABLE connections ADD COLUMN user_id INTEGER CHECK (user_id NOT NULL)
+REFERENCES users ON DELETE CASCADE;
+
+CREATE INDEX idx_connections_user ON connections(user_id);
+
+CREATE INDEX idx_commands_conn_id ON commands(conn_id);
+
+PRAGMA ignore_check_constraints=OFF;
+|]