feat: complete T-533 incremental generation

tests/test_gui.py

@@ -1356,6 +1356,41 @@ class GuiTests(TempDirMixin, unittest.TestCase):
 
         self.assert_removed(temp_dir)
 
+    def test_generate_tab_refreshes_to_generate_filter_when_cover_toggle_changes(self):
+        with self.make_temp_dir() as temp_dir:
+            cfg = self.make_config(temp_dir)
+            accounts.create_account("主店", "alias-a", debug_port=9222, config=cfg)
+            batch_id = db.create_batch(["input.xlsx"], path=cfg["db_path"])
+            db.insert_tasks(
+                batch_id,
+                [
+                    {
+                        "source_file_abs": os.path.join(temp_dir, "input.xlsx"),
+                        "source_sheet": "商品",
+                        "source_row": 2,
+                        "account_name": "Excel主店",
+                        "alias": "alias-a",
+                        "item_id": "51100639510",
+                    }
+                ],
+                path=cfg["db_path"],
+            )
+            task = db.list_tasks(batch_id=batch_id, path=cfg["db_path"])[0]
+            db.set_collected(task.id, "旧标题", "old.jpg", path=cfg["db_path"])
+            db.set_generated(task.id, "已有标题", None, path=cfg["db_path"])
+            tab = GenerateTab(config=cfg)
+            self.addCleanup(tab.close)
+
+            tab.status_filter.setCurrentIndex(tab.status_filter.findData("to_generate"))
+            self.assertEqual(0, tab.model.rowCount())
+
+            tab.generate_cover_checkbox.setChecked(True)
+
+            self.assertEqual(1, tab.model.rowCount())
+            self.assertEqual("51100639510", tab.model.task_at(0).item_id)
+
+        self.assert_removed(temp_dir)
+
     def test_generate_tab_manages_prompt_files_and_preview(self):
         with self.make_temp_dir() as temp_dir:
             cfg = self.make_config(temp_dir)
@@ -1927,6 +1962,73 @@ class GuiTests(TempDirMixin, unittest.TestCase):
 
         self.assert_removed(temp_dir)
 
+    def test_generate_worker_fills_missing_cover_without_title_call(self):
+        with self.make_temp_dir() as temp_dir:
+            cfg = self.make_config(temp_dir)
+            cfg["ai"] = appconfig.ai_config(cfg)
+            cfg["ai"]["generate_cover"] = True
+            accounts.create_account("主店", "alias-a", debug_port=9222, config=cfg)
+            batch_id = db.create_batch(["input.xlsx"], path=cfg["db_path"])
+            db.insert_tasks(
+                batch_id,
+                [
+                    {
+                        "source_file_abs": os.path.join(temp_dir, "input.xlsx"),
+                        "source_sheet": "商品",
+                        "source_row": 2,
+                        "account_name": "Excel主店",
+                        "alias": "alias-a",
+                        "item_id": "51100639510",
+                    }
+                ],
+                path=cfg["db_path"],
+            )
+            task = db.list_tasks(batch_id=batch_id, path=cfg["db_path"])[0]
+            db.set_collected(task.id, "旧标题", "old.jpg", path=cfg["db_path"])
+            db.set_generated(task.id, "手动标题", None, path=cfg["db_path"])
+            tasks = db.list_tasks(batch_id=batch_id, path=cfg["db_path"])
+            logs = []
+            progress = []
+
+            def fake_cover(cover_prompt, old_cover_path, out_path, **kwargs):
+                os.makedirs(os.path.dirname(out_path), exist_ok=True)
+                with open(out_path, "wb") as fh:
+                    fh.write(b"jpeg")
+                return out_path
+
+            worker = GenerateWorker(
+                tasks,
+                {"title": "标题提示", "cover": "封面 {新标题}"},
+                db_path=cfg["db_path"],
+                config=cfg,
+            )
+            worker.log.connect(logs.append)
+            worker.progress.connect(progress.append)
+            with mock.patch("app.ai.gen_title") as gen_title, \
+                    mock.patch("app.ai.gen_cover", side_effect=fake_cover) as gen_cover:
+                summary = worker.execute()
+
+            self.assertTrue(summary["ok"])
+            self.assertEqual(1, summary["total"])
+            self.assertEqual(0, summary["title_total"])
+            self.assertEqual(1, summary["cover_total"])
+            self.assertEqual(0, summary["title_done"])
+            self.assertEqual(1, summary["cover_done"])
+            self.assertEqual(1, summary["generated_done"])
+            gen_title.assert_not_called()
+            gen_cover.assert_called_once()
+            updated = db.list_tasks(batch_id=batch_id, path=cfg["db_path"])[0]
+            self.assertEqual("手动标题", updated.new_title)
+            self.assertTrue(os.path.exists(updated.new_cover_path))
+            self.assertEqual(0, progress[-1]["title_total"])
+            self.assertEqual(1, progress[-1]["cover_total"])
+            joined_logs = "\n".join(logs)
+            self.assertIn("[开始] 本轮生成 1 条：标题0，图片1", joined_logs)
+            self.assertIn("已有标题，跳过生文", joined_logs)
+            self.assertIn("[完成] AI 生成完成：标题0/0，图片1/1，失败0", joined_logs)
+
+        self.assert_removed(temp_dir)
+
     def test_generate_tab_does_not_auto_mix_latest_generate_run_log(self):
         with self.make_temp_dir() as temp_dir:
             cfg = self.make_config(temp_dir)
@@ -2009,6 +2111,61 @@ class GuiTests(TempDirMixin, unittest.TestCase):
 
         self.assert_removed(temp_dir)
 
+    def test_generate_tab_starts_cover_only_run_for_missing_cover(self):
+        with self.make_temp_dir() as temp_dir:
+            cfg = self.make_config(temp_dir)
+            cfg["ai"] = appconfig.ai_config(cfg)
+            cfg["ai"]["generate_cover"] = True
+            accounts.create_account("主店", "alias-a", debug_port=9222, config=cfg)
+            batch_id = db.create_batch(["input.xlsx"], path=cfg["db_path"])
+            db.insert_tasks(
+                batch_id,
+                [
+                    {
+                        "source_file_abs": os.path.join(temp_dir, "input.xlsx"),
+                        "source_sheet": "商品",
+                        "source_row": 2,
+                        "account_name": "Excel主店",
+                        "alias": "alias-a",
+                        "item_id": "51100639510",
+                    }
+                ],
+                path=cfg["db_path"],
+            )
+            task = db.list_tasks(batch_id=batch_id, path=cfg["db_path"])[0]
+            db.set_collected(task.id, "旧标题", "old.jpg", path=cfg["db_path"])
+            db.set_generated(task.id, "手动标题", None, path=cfg["db_path"])
+            tab = GenerateTab(config=cfg)
+            self.addCleanup(tab.close)
+
+            class FakeSignal:
+                def __init__(self):
+                    self.callbacks = []
+
+                def connect(self, callback):
+                    self.callbacks.append(callback)
+
+            class FakeThread:
+                def __init__(self):
+                    self.finished = FakeSignal()
+                    self.started = False
+
+                def start(self):
+                    self.started = True
+
+            fake_thread = FakeThread()
+            with mock.patch("app.gui.run_worker", return_value=fake_thread):
+                tab.start_generate()
+
+            self.assertTrue(fake_thread.started)
+            self.assertEqual("标题 0/0", tab.title_progress_label.text())
+            self.assertEqual("图片 0/1", tab.cover_progress_label.text())
+            text = tab.run_log_view.toPlainText()
+            self.assertIn("本轮AI生成开始：任务 1 条", text)
+            self.assertIn("生成封面：是", text)
+
+        self.assert_removed(temp_dir)
+
     def test_generate_tab_explains_collect_failed_records_are_not_generatable(self):
         with self.make_temp_dir() as temp_dir:
             cfg = self.make_config(temp_dir)
@@ -2038,7 +2195,7 @@ class GuiTests(TempDirMixin, unittest.TestCase):
             tab.start_generate()
 
             self.assertIsNone(tab.generate_worker)
-            self.assertIn("没有待生成或生成失败可重试任务", statuses[-1])
+            self.assertIn("没有可生成的缺失内容", statuses[-1])
             self.assertIn("①导入采集", statuses[-1])
 
         self.assert_removed(temp_dir)