"""
core/serial_handler.py
真实串口处理器 (硬件连接用)
"""
import serial
import logging

class SerialHandler:
    def __init__(self, port='COM3', baudrate=115200):
        self.port = port
        self.baudrate = baudrate
        self.serial_conn = None
        self.logger = logging.getLogger("SerialHandler")

    def open(self):
        try:
            self.serial_conn = serial.Serial(
                port=self.port,
                baudrate=self.baudrate,
                timeout=0.5
            )
            self.logger.info(f"✅ 真实串口连接成功: {self.port}")
            return True
        except Exception as e:
            self.logger.error(f"❌ 真实串口连接失败: {e}")
            return False

    def close(self):
        if self.serial_conn and self.serial_conn.is_open:
            self.serial_conn.close()

    def send_command(self, byte_data):
        if self.serial_conn and self.serial_conn.is_open:
            try:
                self.serial_conn.write(byte_data)
                self.logger.info(f"📤 真实发送: {byte_data.hex().upper()}")
                return True
            except Exception as e:
                self.logger.error(f"发送错误: {e}")
                return False
        return False