from PySide6.QtWidgets import (
    QWidget, QLabel, QLineEdit, QComboBox, QCheckBox, 
    QGridLayout, QGroupBox, QPushButton, QHBoxLayout, 
    QVBoxLayout, QFormLayout, QSpinBox
)
from PySide6.QtCore import Qt, Signal

class SerialSettingsUI(QWidget):
    """串口设置UI组件"""
    
    # 定义信号
    settings_changed = Signal()
    
    def __init__(self, parent=None):
        super().__init__(parent)
        self.init_ui()
        
    def init_ui(self):
        """初始化UI"""
        main_layout = QVBoxLayout(self)
        
        # 创建全局启用选项
        enable_layout = QHBoxLayout()
        self.enable_serial_checkbox = QCheckBox("启用串口功能")
        self.enable_keyboard_checkbox = QCheckBox("启用键盘监听 (PageUp 触发米电阻查询)")
        enable_layout.addWidget(self.enable_serial_checkbox)
        enable_layout.addWidget(self.enable_keyboard_checkbox)
        enable_layout.addStretch()
        main_layout.addLayout(enable_layout)
        
        # 创建串口设置组
        serial_group = QGroupBox("串口设置")
        serial_layout = QGridLayout(serial_group)
        
        # 米电阻串口设置
        mdz_group = QGroupBox("米电阻串口")
        mdz_layout = QFormLayout(mdz_group)
        
        # 串口选择
        mdz_port_layout = QHBoxLayout()
        self.mdz_port_combo = QComboBox()
        self.mdz_refresh_btn = QPushButton("刷新")
        mdz_port_layout.addWidget(self.mdz_port_combo)
        mdz_port_layout.addWidget(self.mdz_refresh_btn)
        mdz_layout.addRow("串口:", mdz_port_layout)
        
        # 波特率
        self.mdz_baud_combo = QComboBox()
        for baud in ["1200", "2400", "4800", "9600", "19200", "38400", "57600", "115200"]:
            self.mdz_baud_combo.addItem(baud)
        mdz_layout.addRow("波特率:", self.mdz_baud_combo)
        
        # 数据位
        self.mdz_data_bits_combo = QComboBox()
        for bits in ["5", "6", "7", "8"]:
            self.mdz_data_bits_combo.addItem(bits)
        mdz_layout.addRow("数据位:", self.mdz_data_bits_combo)
        
        # 停止位
        self.mdz_stop_bits_combo = QComboBox()
        for bits in ["1", "1.5", "2"]:
            self.mdz_stop_bits_combo.addItem(bits)
        mdz_layout.addRow("停止位:", self.mdz_stop_bits_combo)
        
        # 校验位
        self.mdz_parity_combo = QComboBox()
        for parity in [("无校验", "N"), ("奇校验", "O"), ("偶校验", "E")]:
            self.mdz_parity_combo.addItem(parity[0], parity[1])
        mdz_layout.addRow("校验位:", self.mdz_parity_combo)
        
        # 查询指令
        self.mdz_query_cmd = QLineEdit()
        mdz_layout.addRow("查询指令:", self.mdz_query_cmd)
        
        # 查询间隔
        self.mdz_query_interval = QSpinBox()
        self.mdz_query_interval.setRange(1, 60)
        self.mdz_query_interval.setSuffix(" 秒")
        mdz_layout.addRow("查询间隔:", self.mdz_query_interval)
        
        # 线径串口设置
        xj_group = QGroupBox("线径串口")
        xj_layout = QFormLayout(xj_group)
        
        # 串口选择
        xj_port_layout = QHBoxLayout()
        self.xj_port_combo = QComboBox()
        self.xj_refresh_btn = QPushButton("刷新")
        xj_port_layout.addWidget(self.xj_port_combo)
        xj_port_layout.addWidget(self.xj_refresh_btn)
        xj_layout.addRow("串口:", xj_port_layout)
        
        # 波特率
        self.xj_baud_combo = QComboBox()
        for baud in ["1200", "2400", "4800", "9600", "19200", "38400", "57600", "115200"]:
            self.xj_baud_combo.addItem(baud)
        xj_layout.addRow("波特率:", self.xj_baud_combo)
        
        # 数据位
        self.xj_data_bits_combo = QComboBox()
        for bits in ["5", "6", "7", "8"]:
            self.xj_data_bits_combo.addItem(bits)
        xj_layout.addRow("数据位:", self.xj_data_bits_combo)
        
        # 停止位
        self.xj_stop_bits_combo = QComboBox()
        for bits in ["1", "1.5", "2"]:
            self.xj_stop_bits_combo.addItem(bits)
        xj_layout.addRow("停止位:", self.xj_stop_bits_combo)
        
        # 校验位
        self.xj_parity_combo = QComboBox()
        for parity in [("无校验", "N"), ("奇校验", "O"), ("偶校验", "E")]:
            self.xj_parity_combo.addItem(parity[0], parity[1])
        xj_layout.addRow("校验位:", self.xj_parity_combo)
        
        
        # 将三个组添加到布局
        serial_layout.addWidget(mdz_group, 0, 0)
        serial_layout.addWidget(xj_group, 0, 1)
        
        # 设置列伸缩因子，使两列等宽（比例1:1）
        serial_layout.setColumnStretch(0, 1)
        serial_layout.setColumnStretch(1, 1)

        main_layout.addWidget(serial_group)
        
        # 测试按钮
        test_layout = QHBoxLayout()
        self.test_mdz_btn = QPushButton("测试米电阻串口")
        self.test_xj_btn = QPushButton("测试线径串口")
        test_layout.addWidget(self.test_mdz_btn)
        test_layout.addWidget(self.test_xj_btn)
        test_layout.addStretch()
        main_layout.addLayout(test_layout)
        
        # 保存按钮
        button_layout = QHBoxLayout()
        self.save_btn = QPushButton("保存设置")
        self.save_btn.setStyleSheet("background-color: #e3f2fd; border: 1px solid #2196f3; padding: 8px 16px; font-weight: bold; border-radius: 4px;")
        button_layout.addStretch()
        button_layout.addWidget(self.save_btn)
        main_layout.addLayout(button_layout)
        
        main_layout.addStretch()