From 70d2b6d6e4be186a8cc5cbc56c970f1df1ab1684 Mon Sep 17 00:00:00 2001
From: Vitali Graf <info@vitaligraf.de>
Date: Mon, 6 Apr 2026 20:28:18 +0200
Subject: [PATCH] feat: add inserter module with clipboard paste and restore

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 tests/test_inserter.py    | 69 +++++++++++++++++++++++++++++++++++++++
 whisper_local/inserter.py | 45 +++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 tests/test_inserter.py
 create mode 100644 whisper_local/inserter.py

diff --git a/tests/test_inserter.py b/tests/test_inserter.py
new file mode 100644
index 0000000..2e9f43d
--- /dev/null
+++ b/tests/test_inserter.py
@@ -0,0 +1,69 @@
+import asyncio
+from unittest.mock import AsyncMock, MagicMock, patch, call
+
+import pytest
+
+from whisper_local.inserter import Inserter
+
+
+class TestInserter:
+    @pytest.mark.asyncio
+    @patch("whisper_local.inserter.asyncio.sleep", new_callable=AsyncMock)
+    @patch("whisper_local.inserter.asyncio.create_subprocess_exec")
+    async def test_insert_text_calls_tools_in_order(self, mock_exec, mock_sleep):
+        # Mock für alle subprocess-Aufrufe
+        mock_proc = AsyncMock()
+        mock_proc.communicate.return_value = (b"alter clipboard", b"")
+        mock_proc.returncode = 0
+        mock_exec.return_value = mock_proc
+
+        inserter = Inserter()
+        await inserter.insert("Hallo Welt")
+
+        # Prüfe dass wl-paste, wl-copy, wtype, wl-copy aufgerufen werden
+        calls = mock_exec.call_args_list
+        assert len(calls) == 4
+        assert calls[0][0][0] == "wl-paste"                    # Clipboard sichern
+        assert calls[1][0] == ("wl-copy", "Hallo Welt")        # Text in Clipboard
+        assert calls[2][0][0] == "wtype"                        # Ctrl+V simulieren
+        assert calls[3][0] == ("wl-copy", "alter clipboard")   # Clipboard wiederherstellen
+
+    @pytest.mark.asyncio
+    @patch("whisper_local.inserter.asyncio.create_subprocess_exec")
+    async def test_insert_empty_text_does_nothing(self, mock_exec):
+        inserter = Inserter()
+        await inserter.insert("")
+
+        mock_exec.assert_not_called()
+
+    @pytest.mark.asyncio
+    @patch("whisper_local.inserter.asyncio.sleep", new_callable=AsyncMock)
+    @patch("whisper_local.inserter.asyncio.create_subprocess_exec")
+    async def test_clipboard_restore_on_paste_failure(self, mock_exec, mock_sleep):
+        call_count = 0
+
+        async def mock_create_proc(*args, **kwargs):
+            nonlocal call_count
+            call_count += 1
+            mock_proc = AsyncMock()
+            if call_count == 1:  # wl-paste
+                mock_proc.communicate.return_value = (b"original", b"")
+                mock_proc.returncode = 0
+            elif call_count == 2:  # wl-copy
+                mock_proc.communicate.return_value = (b"", b"")
+                mock_proc.returncode = 0
+            elif call_count == 3:  # wtype — fails
+                mock_proc.communicate.return_value = (b"", b"error")
+                mock_proc.returncode = 1
+            else:  # wl-copy restore
+                mock_proc.communicate.return_value = (b"", b"")
+                mock_proc.returncode = 0
+            return mock_proc
+
+        mock_exec.side_effect = mock_create_proc
+
+        inserter = Inserter()
+        await inserter.insert("Test")
+
+        # Clipboard muss trotzdem wiederhergestellt werden
+        assert call_count == 4
diff --git a/whisper_local/inserter.py b/whisper_local/inserter.py
new file mode 100644
index 0000000..d73c6a0
--- /dev/null
+++ b/whisper_local/inserter.py
@@ -0,0 +1,45 @@
+"""Text-Einfügung via Clipboard und wtype."""
+
+import asyncio
+import logging
+
+logger = logging.getLogger(__name__)
+
+PASTE_DELAY = 0.2  # Sekunden Wartezeit vor Clipboard-Restore
+
+
+class Inserter:
+    async def _run(self, *cmd: str) -> tuple[bytes, int]:
+        """Führt einen Befehl aus, gibt (stdout, returncode) zurück."""
+        proc = await asyncio.create_subprocess_exec(
+            *cmd,
+            stdout=asyncio.subprocess.PIPE,
+            stderr=asyncio.subprocess.PIPE,
+        )
+        stdout, stderr = await proc.communicate()
+        if proc.returncode != 0:
+            logger.warning("Befehl fehlgeschlagen: %s (stderr: %s)", cmd, stderr.decode())
+        return stdout, proc.returncode
+
+    async def insert(self, text: str) -> None:
+        """Fügt Text ins aktive Fenster ein via Clipboard + Ctrl+V."""
+        if not text:
+            return
+
+        # 1. Aktuelle Zwischenablage sichern
+        old_clipboard, _ = await self._run("wl-paste")
+
+        try:
+            # 2. Text in Zwischenablage kopieren
+            await self._run("wl-copy", text)
+
+            # 3. Ctrl+V simulieren
+            await self._run("wtype", "-M", "ctrl", "v", "-m", "ctrl")
+
+            # 4. Kurz warten, dann Clipboard wiederherstellen
+            await asyncio.sleep(PASTE_DELAY)
+        finally:
+            # Clipboard immer wiederherstellen
+            await self._run("wl-copy", old_clipboard.decode())
+
+        logger.info("Text eingefügt (%d Zeichen)", len(text))