from PySide6.QtWidgets import QWidget
from PySide6.QtCore import Slot, Signal, SignalInstance
from ui_var_details import Ui_Widget
from param_data import ParamDataVar
from br_com_message import BrComMessage


class BrWidgetVarDetails(QWidget, Ui_Widget):
    signal_read: SignalInstance = Signal(BrComMessage)
    signal_write: SignalInstance = Signal(BrComMessage)

    def __init__(self, parent=None):
        super().__init__(parent)
        self.setupUi(self)
        self.param_data: ParamDataVar = None

    def update_param_info(self, p_data: ParamDataVar):
        self.param_data = p_data
        self.label_addr.setText(str(p_data.addr))
        self.label_name.setText(str(p_data.name))
        self.label_details.setText(str(p_data.details))
        self.lineEdit_var.setText(str(p_data.val()))

    @Slot()
    def on_pushButton_read_clicked(self):
        print('[read] button clicked!')

        # 生成读取命令，然后触发读取事件
        m_msg = BrComMessage(
            BrComMessage.OP_READ,
            self.param_data.addr)

        self.signal_read.emit(m_msg)

    @Slot()
    def on_pushButton_write_clicked(self):
        print('[write] button clicked!')
        # 获取数值
        _write_val = float(self.lineEdit_var.text())
        m_msg = BrComMessage(
            BrComMessage.OP_WRITE,
            self.param_data.addr,
            _write_val
        )
        self.signal_write.emit(m_msg)


if __name__ == "__main__":
    from PySide6.QtWidgets import QApplication
    import sys
    app = QApplication()
    widget = BrWidgetVarDetails()
    param_data = ParamDataVar(10, 'name', 'NULL', 0)
    widget.update_param_info(param_data)
    widget.show()
    sys.exit(app.exec())