feat: Add commands to create chats

lib/src/utils/commands_extension.dart

@@ -98,6 +98,19 @@ extension CommandsClientExtension on Client {
         txid: args.txid,
       );
     });
+    addCommand('dm', (CommandArgs args) async {
+      final parts = args.msg.split(' ');
+      return await args.room.client.startDirectChat(
+        parts.first,
+        enableEncryption: !parts.any((part) => part == '--no-encryption'),
+      );
+    });
+    addCommand('create', (CommandArgs args) async {
+      final parts = args.msg.split(' ');
+      return await args.room.client.createGroupChat(
+        enableEncryption: !parts.any((part) => part == '--no-encryption'),
+      );
+    });
     addCommand('plain', (CommandArgs args) async {
       return await args.room.sendTextEvent(
         args.msg,

test/commands_test.dart

@@ -274,6 +274,28 @@ void main() {
       });
     });
 
+    test('dm', () async {
+      FakeMatrixApi.calledEndpoints.clear();
+      await room.sendTextEvent('/dm @alice:example.com --no-encryption');
+      expect(
+          json.decode(
+              FakeMatrixApi.calledEndpoints['/client/r0/createRoom']?.first),
+          {
+            'invite': ['@alice:example.com'],
+            'is_direct': true,
+            'preset': 'trusted_private_chat'
+          });
+    });
+
+    test('create', () async {
+      FakeMatrixApi.calledEndpoints.clear();
+      await room.sendTextEvent('/create @alice:example.com --no-encryption');
+      expect(
+          json.decode(
+              FakeMatrixApi.calledEndpoints['/client/r0/createRoom']?.first),
+          {'preset': 'private_chat'});
+    });
+
     test('discardsession', () async {
       if (olmEnabled) {
         await client.encryption?.keyManager.createOutboundGroupSession(room.id);