feat(core): 重构主应用启动逻辑并改进WITS数据发送

- 将主应用改为同时启动MQTT订阅入库和WITS数据发送两个服务
- 实现WITS发送器的自动重连机制和连接状态管理
- 添加日志记录到log/app.log和错误日志到log/error.log
- 更新WITS通道映射定义并支持字符串类型的日期时间字段
- 修改数据入库逻辑以支持空值处理和类型转换容错
- 移除命令行子命令模式，改为配置文件驱动的参数设置
- 添加.vscode和log目录到.gitignore忽略列表

main.py

@@ -1,54 +1,117 @@
 import argparse
 import logging
+import os
+import threading
+import time
+from pathlib import Path
+from types import SimpleNamespace
 
-from app import mqtt_mock, mqtt_sender, mqtt_subscriber, wits_sender
+from app import mqtt_mock, wits_sender
+from config import build_mock_dependencies, build_wits_sender_dependencies
+
+
+logger = logging.getLogger(__name__)
+BASE_DIR = Path(__file__).resolve().parent
 
 
 def configure_logging(level_name):
+    log_dir = BASE_DIR / "log"
+    os.makedirs(log_dir, exist_ok=True)
     level = getattr(logging, str(level_name).upper(), logging.INFO)
-    logging.basicConfig(
-        level=level,
-        format="%(asctime)s %(levelname)s %(name)s - %(message)s",
-    )
+    formatter = logging.Formatter("%(asctime)s %(levelname)s %(name)s - %(message)s")
+
+    root_logger = logging.getLogger()
+    root_logger.handlers.clear()
+    root_logger.setLevel(level)
+
+    console_handler = logging.StreamHandler()
+    console_handler.setLevel(level)
+    console_handler.setFormatter(formatter)
+
+    app_file_handler = logging.FileHandler(log_dir / "app.log", encoding="utf-8")
+    app_file_handler.setLevel(level)
+    app_file_handler.setFormatter(formatter)
+
+    error_file_handler = logging.FileHandler(log_dir / "error.log", encoding="utf-8")
+    error_file_handler.setLevel(logging.ERROR)
+    error_file_handler.setFormatter(formatter)
+
+    root_logger.addHandler(console_handler)
+    root_logger.addHandler(app_file_handler)
+    root_logger.addHandler(error_file_handler)
 
 
 def build_parser():
     parser = argparse.ArgumentParser(description="tdEngine mqtt/wits mock application")
+    parser.add_argument("--config", default="config.yaml", help="Path to config yaml")
     parser.add_argument("--log-level", default="INFO", help="Logging level")
-    subparsers = parser.add_subparsers(dest="command", required=True)
-
-    mqtt_mock_parser = subparsers.add_parser("mqtt-mock", help="Run MQTT mock service")
-    mqtt_mock.add_arguments(mqtt_mock_parser)
-
-    mqtt_sender_parser = subparsers.add_parser("mqtt-sender", help="Run MQTT sender")
-    mqtt_sender.add_arguments(mqtt_sender_parser)
-
-    mqtt_subscriber_parser = subparsers.add_parser("mqtt-subscriber", help="Run MQTT subscriber")
-    mqtt_subscriber.add_arguments(mqtt_subscriber_parser)
-
-    wits_sender_parser = subparsers.add_parser("wits-sender", help="Run WITS sender")
-    wits_sender.add_arguments(wits_sender_parser)
+    parser.add_argument("--data-file", default="", help="Override data-file in config")
+    parser.add_argument("--wits-host", default="", help="Override WITS target host")
+    parser.add_argument("--wits-port", type=int, default=0, help="Override WITS target port")
+    parser.add_argument("--wits-timeout", type=int, default=0, help="Override WITS socket timeout")
+    parser.add_argument("--wits-source-file", default="", help="Send raw WITS packet from file")
     return parser
 
 
+def build_mqtt_args(args):
+    return SimpleNamespace(
+        config=args.config,
+        mode="listen",
+        interval=2.0,
+        count=0,
+        data_file=args.data_file,
+    )
+
+
+def build_wits_args(args):
+    return SimpleNamespace(
+        config=args.config,
+        host=args.wits_host,
+        port=args.wits_port,
+        timeout=args.wits_timeout,
+        source_file=args.wits_source_file,
+        interval=2.0,
+        count=0,
+    )
+
+
+def start_worker(name, target, args, deps):
+    thread = threading.Thread(target=target, args=(args, deps), name=name, daemon=True)
+    thread.start()
+    return thread
+
+
 def main(argv=None):
     parser = build_parser()
     args = parser.parse_args(argv)
     configure_logging(args.log_level)
-    logging.getLogger(__name__).info("start app command=%s", args.command)
 
-    if args.command == "mqtt-mock":
-        deps = mqtt_mock.build_mock_dependencies(args.config, data_file_override=args.data_file)
-        mqtt_mock.run_mock_service(args, deps)
-    elif args.command == "mqtt-sender":
-        deps = mqtt_sender.build_sender_dependencies(args.config)
-        mqtt_sender.run_sender(args, deps)
-    elif args.command == "mqtt-subscriber":
-        deps = mqtt_subscriber.build_subscriber_dependencies(args.config)
-        mqtt_subscriber.run_subscriber(args, deps)
-    elif args.command == "wits-sender":
-        deps = wits_sender.build_wits_sender_dependencies(args.config)
-        wits_sender.run_wits_sender(args, deps)
+    logger.info("start app")
+
+    mqtt_args = build_mqtt_args(args)
+    wits_args = build_wits_args(args)
+
+    mqtt_deps = build_mock_dependencies(mqtt_args.config, data_file_override=mqtt_args.data_file)
+    wits_deps = build_wits_sender_dependencies(wits_args.config)
+
+    threads = [
+        start_worker("mqtt-mock", mqtt_mock.run_mock_service, mqtt_args, mqtt_deps),
+        start_worker("wits-sender", wits_sender.run_wits_sender, wits_args, wits_deps),
+    ]
+
+    logger.info("services started: mqtt subscription+ingest and wits sender")
+
+    try:
+        while True:
+            for thread in threads:
+                if not thread.is_alive():
+                    raise RuntimeError(f"worker stopped unexpectedly: {thread.name}")
+            time.sleep(1)
+    except KeyboardInterrupt:
+        logger.info("shutdown requested")
+    except Exception:
+        logger.exception("application stopped unexpectedly")
+        raise
 
 
 if __name__ == "__main__":