# 相当于天线，默认目标地址为192.168.49.160，端口号为 8080
# 下行报文指上位机发送给接收机
import tkinter as tk
from threading import Thread
import socket


class ReceiveApp:
    def __init__(self, window):
        self.window = window
        self.window.title("Receive端")

        # 接收区域
        self.recv_frame = tk.Frame(window)
        self.recv_frame.pack(padx=10, pady=10)

        self.recv_label = tk.Label(self.recv_frame, text="接收数据")
        self.recv_label.pack()

        self.recv_text = tk.Text(self.recv_frame, height=15, width=50)
        self.recv_text.pack()

        # 发送区域
        self.send_frame = tk.Frame(window)
        self.send_frame.pack(padx=10, pady=10)

        self.style_label = tk.Label(self.send_frame, text="指令类型:")
        self.style_label.pack(side=tk.LEFT)

        self.style_entry = tk.Entry(self.send_frame)
        self.style_entry.pack(side=tk.LEFT)

        self.content_label = tk.Label(self.send_frame, text="指令内容:")
        self.content_label.pack(side=tk.LEFT)

        self.content_entry = tk.Entry(self.send_frame)
        self.content_entry.pack(side=tk.LEFT)

        #获取完整指令
        self.all_msg = tk.Label(self.send_frame, text="完整指令:")
        self.all_msg.pack(side=tk.LEFT)

        self.all_msg = tk.Entry(self.send_frame)
        self.all_msg.pack(side=tk.LEFT)

        self.send_button = tk.Button(self.send_frame, text="发送", command=self.send_message)
        self.send_button.pack(side=tk.LEFT)

        self.sk = socket.socket(type=socket.SOCK_DGRAM)
        self.sk.bind(("127.0.0.1", 9000))

        # 开始接收数据的线程
        self.thread = Thread(target=self.receive_data)
        self.thread.daemon = True
        self.thread.start()

    # 下行报文18字节固定长度
    """帧格式：
        0~3     帧头    BYTE[4]    4         固定为0x58443341
        4       指令类型 UINT8      1         0x00:开始停止       0x01:工况查询       0x02:设备重置    0x03:授时指令      0x04:频率设置   
                                            0x05:本机地址设置   0x06:本机位置设置     0x07:开启关闭测试模式
        5~14    指令内容 BYTE[10]   10       根据指令类型填充，当指令类型为0x01、0x02时可不填充
        15~17   帧尾    BYTE[3]     3       固定为0x334441
    """
    def send_message(self):
        # 1.创建udp对象
        style = self.style_entry.get()
        print(style)
        content = self.content_entry.get()
        print(content)
        if style != "" or content != "":
            head = "58443341"
            tail = "334441"
            msg = head + style + content + tail
        else:
            all_message = self.all_msg.get()
            msg = all_message.split(" ")
            msg = "".join(msg)
            print(msg)
        # sendto( 二进制字节流，ip端口号 )
        self.sk.sendto(msg.encode(), ("127.0.0.1", 5010))

    def receive_data(self):
        while True:
            msg, addr = self.sk.recvfrom(1024)
            message_to_display = "Received: " + msg.decode() + " from " + str(addr)
            self.recv_text.insert(tk.END, message_to_display + "\n")

if __name__ == "__main__":
    root = tk.Tk()
    app = ReceiveApp(root)
    root.mainloop()