# -*- coding: utf-8 -*-
# https://blog.csdn.net/weixin_52040868
# 公众号：测个der
# 微信：qing_an_an

from UI.index import *
from FUCTIONS.ReadConfig import _json
from FUCTIONS.UiComponents import UiConnect
from PyQt5.QtGui import QKeyEvent
from PyQt5.QtCore import Qt, QMimeData, QEvent, QObject
from PyQt5.QtWidgets import QMainWindow, QMessageBox, QFileDialog
from PyQt5.QtWidgets import QApplication
from PyQt5.QtGui import QDrag

# 拖拽
class DragAndDropFilter(QObject):
    def __init__(self, source_widget, target_widget):
        super().__init__()
        self.source_widget = source_widget  # QLabel
        self.target_widget = target_widget  # QLineEdit
        self.source_widget.installEventFilter(self)
        self.target_widget.installEventFilter(self)
        self.is_dropped = False

    def eventFilter(self, obj, event):
        if obj == self.source_widget and event.type() == QEvent.MouseButtonPress:
            if event.button() == Qt.LeftButton:
                mime_data = QMimeData()
                mime_data.setText(self.source_widget.text())

                drag = QDrag(self.source_widget)
                drag.setMimeData(mime_data)

                result = drag.exec_(Qt.MoveAction)
                if result == Qt.MoveAction:
                    return True

        if obj == self.target_widget:
            if event.type() == QEvent.Drop:
                mime_data = event.mimeData().text()

                # 如果有文本则先清除
                if self.is_dropped:
                    self.target_widget.clear()

                self.target_widget.setText(mime_data)
                self.target_widget.selectAll()
                self.is_dropped = True
                return True
            elif event.type() == QEvent.DragEnter:
                # 接受拖动事件以启用拖放
                event.accept()
                return True

        return super().eventFilter(obj, event)

class BatterySystem(QMainWindow):

    def __init__(self):
        super(BatterySystem, self).__init__()
        # //////////UI_Main
        self.UI = Ui_MainWindow()
        self.UI.setupUi(self)
        # 只读模式
        self.UI.plainTextEdit_Recive.setReadOnly(True)
        self.UI.plainTextEdit_Recive.setMaximumBlockCount(1000)
        # 调用信号方法
        self.SignalFunction()
        self.Color()        # 单独设置一个颜色
        self.StartThread()  # 启用线程
        self.Drag()         # 启用拖拽
        # 自动加载Json配置
        self.AutoAddJson()
        # ////////显示UI图
        self.show()

    def StartThread(self):
        # 启用数据线程
        self.uiThread = UiConnect(self.UI)
        self.uiThread.start()

    def Drag(self):
        # 拖拽
        self.infoCommanddragdrop = DragAndDropFilter(self.UI.infoCommand, self.UI.textEdit_Send)
        self.batCommanddragdrop = DragAndDropFilter(self.UI.batCommand, self.UI.textEdit_Send)

    def SignalFunction(self):
        """信号槽"""
        self.UI.stackedWidget.setCurrentWidget(self.UI.page_2)  # 默认显示
        self.UI.listWidget.currentRowChanged.connect(self.UiSecond)
        self.UI.textEdit_Send.installEventFilter(self)  # 链接键盘回车事件

    def Color(self):
        self.UI.Com_isOpenOrNot_Label.setStyleSheet("background: #a9fff5;")
        TextStyle = """
        QMessageBox QPushButton[text="&Yes"] {
            qproperty-text: "是";
        }
        QMessageBox QPushButton[text="&No"] {
            qproperty-text: "否";
        }
        QMessageBox {messagebox-question-icon: url(:/header/警告.png);}
        """
        self.setStyleSheet(TextStyle)
        self.UI.Com_isOpenOrNot_Label.setStyleSheet("background: {};".format("#ff4545"))
        self.UI.Com_Close_Button.setEnabled(False)  # 设置起始不可选择

    def AutoAddJson(self):
        """自动添加Json的配置电话、型号"""
        self.AutoSetText(self.UI.DevicesName, _json.getData('Devices'))
        self.AutoSetText(self.UI.infoCommand, _json.getData('Command1'))
        self.AutoSetText(self.UI.batCommand, _json.getData('Command2'))
        self.UI.Standard.addItems(_json.getData('givenDevices'))

    def AutoSetText(self, UiEelement, value):
        """自动写入或替换参数"""
        if value is not None:
            UiEelement.setText(value)

    def OpenFile(self):
        """打开数据处理文件"""
        options = QFileDialog.Options()
        fileName, _ = QFileDialog.getOpenFileName(None, "选择文件", "",
                                                  "All Files (*);;Text Files (*.txt);;Image Files (*.log)",
                                                  options=options)
        if fileName:
            self.UI.GetDataPath.setText(fileName)

    def UiSecond(self):
        """界面切换"""
        num = self.UI.listWidget.currentRow()
        if num == 0:
            self.UI.stackedWidget.setCurrentWidget(self.UI.page_2)
        elif num == 1:
            self.UI.stackedWidget.setCurrentWidget(self.UI.page)
        elif num == 2:
            self.UI.stackedWidget.setCurrentWidget(self.UI.page_3)

    def closeEvent(self, event):
        reply = QMessageBox.question(self, '请确认', "请确认关闭", QMessageBox.Yes | QMessageBox.No,
                                     QMessageBox.No)
        if reply == QMessageBox.Yes:
            event.accept()
            # 退出应用程序
            QApplication.quit()
        else:
            event.ignore()

    def showWarningMessage(self, message):
        QMessageBox.warning(self, "警告", message)

    # 事件过滤器，监听键盘事件
    def eventFilter(self, obj, event):
        if obj == self.UI.textEdit_Send and event.type() == QKeyEvent.KeyPress:
            if event.key() == Qt.Key_Return or event.key() == Qt.Key_Enter:
                # 将回车键事件转发给发送按钮，实现快速发送数据
                self.UI.Send_Button.click()
                return True
        return super().eventFilter(obj, event)