import json
import sys
import time
import requests

from PyQt5.QtCore import QThread, pyqtSignal
from PyQt5.QtWidgets import *
from PyQt5 import uic,QtCore

class LoginThread (QThread):
    # 创建自定义信号
    Start_Login_Signal = pyqtSignal(str)

    def __init__(self, signal):
        super().__init__()
        self.Login_Complete_Signal = signal

    def Login_by_Requests(self, User_Password_Json):
        User_Data_Json = json.loads(User_Password_Json)
        print(User_Data_Json.get("User_ID"))
        print(User_Data_Json.get("User_Password"))

        # 使用Requests模块发送请求 POST
        r = requests.post(url="https://service-r80raze1-1300421481.sh.apigw.tencentcs.com/release/Python_Pyqt_Learn", json=User_Data_Json)
        print("接受服务器响应：", r.content.decode())
        ret = r.json()

        print("发送信号给UI线程")
        self.Login_Complete_Signal.emit(json.dumps(ret))

    def run(self):
        while True:
            print ("子线程 running...")
            time.sleep(1)

class UserMainWindow(QWidget):
    Login_Status_Signal = pyqtSignal(str)

    def __init__(self):
        super().__init__()
        self.init_ui()

    def init_ui(self):
        self.ui = uic.loadUi("./UserWindow.ui")

        # 提取要操作的控件
        self.Get_Widget()

        # 绑定登录按钮至槽函数：User_Login
        self.BTN_Login.clicked.connect(self.User_Login)
        # 子线程登录成功后向主线程发送信号
        self.Login_Status_Signal.connect(self.Login_Status)

        # 创建子线程
        self.Login_Thread = LoginThread(self.Login_Status_Signal)
        # 将要创建的子线程类中的信号进行绑定
        self.Login_Thread.Start_Login_Signal.connect(self.Login_Thread.Login_by_Requests)
        # 子线程开始工作
        self.Login_Thread.start()

    def Get_Widget(self):
        # 用户信息输入框
            # 用户ID
        self.UserInputID_Edit = self.ui.UserID_Edit
            # 用户密码
        self.UserInputPwd_Edit = self.ui.UserPwd_Edit

        # 信息输出框
        self.MessageOutput_Text = self.ui.Message_Text

        # 按钮：用户登录
        self.BTN_Login = self.ui.BTN_Login

    def User_Login(self):
        # 获取用户输入文本
        User_ID = self.UserInputID_Edit.text()
        User_Password = self.UserInputPwd_Edit.text()
        # 发送信号，子线程开始登录
        self.Login_Thread.Start_Login_Signal.emit(json.dumps({"User_ID": User_ID, "User_Password": User_Password}))

    def Login_Status(self, status):
        Status_Dict = json.loads(status)
        print(Status_Dict.get("errmsg"))
        self.MessageOutput_Text.setText(Status_Dict.get("errmsg"))
        self.MessageOutput_Text.repaint()


if __name__ == '__main__':
    QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
    app = QApplication(sys.argv)
    w = UserMainWindow()
    # 展示窗口
    w.ui.show()
    app.exec()