refactor(pyqt): use create_pipeline_for_job() in LoadPipelineThread

Replace direct create_pipeline() call with domain function for
consistent provider validation and device resolution.

abogen/pyqt/gui.py

@@ -7,7 +7,7 @@ import base64
 import re
 from abogen.pyqt.queue_manager_gui import QueueManager
 from abogen.pyqt.queued_item import QueuedItem
-from abogen.domain.device import select_device as _select_device
+
 import abogen.hf_tracker as hf_tracker
 import hashlib  # Added for cache path generation
 from PyQt6.QtWidgets import (
@@ -2427,15 +2427,9 @@ class abogen(QWidget):
             self.update_log((gpu_msg, gpu_ok))
             self.update_log("Loading modules...")
 
-            # Determine device based on GPU availability
-            if gpu_ok:
-                device = _select_device()
-            else:
-                device = "cpu"
-
             lang_code = self.selected_lang or "a"
             load_thread = LoadPipelineThread(
-                pipeline_loaded_callback, lang_code=lang_code, device=device
+                pipeline_loaded_callback, lang_code=lang_code, use_gpu=gpu_ok
             )
             load_thread.start()
 
@@ -2873,15 +2867,9 @@ class abogen(QWidget):
             )
             self.loading_movie.start()
 
-        # Determine device based on GPU availability
-        if self.gpu_ok:
-            device = _select_device()
-        else:
-            device = "cpu"
-
         lang = self.selected_lang or "a"
         load_thread = LoadPipelineThread(
-            self._on_pipeline_loaded_for_preview, lang_code=lang, device=device
+            self._on_pipeline_loaded_for_preview, lang_code=lang, use_gpu=self.gpu_ok
         )
         load_thread.start()
 

abogen/utils.py

@@ -530,18 +530,18 @@ def prevent_sleep_end():
 
 
 class LoadPipelineThread(Thread):
-    def __init__(self, callback, lang_code="a", device="cpu"):
+    def __init__(self, callback, lang_code="a", use_gpu=True):
         super().__init__()
         self.callback = callback
         self.lang_code = lang_code
-        self.device = device
+        self.use_gpu = use_gpu
 
     def run(self):
         try:
-            from abogen.tts_plugin.utils import create_pipeline
+            from abogen.domain.pipeline_factory import create_pipeline_for_job
 
-            backend = create_pipeline(
+            backend = create_pipeline_for_job(
-                "kokoro", lang_code=self.lang_code, device=self.device
+                "kokoro", language=self.lang_code, use_gpu=self.use_gpu
             )
             self.callback(backend, None)
         except Exception as e: