import socket
import threading
import os
import sys
import json
import time


import prot_codec as pc
import target as tg
from log import myprint
from log import log_init



# 代理服务器端脚本，用于转发端口数据

SERVER_PORT = 5345




# 定义个函数,使其专门重复处理客户的请求数据（也就是重复接受一个用户的消息并且重复回答，直到用户选择下线）
def dispose_client_request(tcp_client_1,tcp_addr):
    myprint(f"客户端：{tcp_addr} 已连接")
    recv_data=bytearray()
    target =tg.tcp_target(tcp_client_1)
    while True:
        try:
            recv = tcp_client_1.recv(4096)
        except Exception as e:
            myprint(str(e))
            break
        if recv:
            recv_data+=recv
            while True:
                start=recv_data.find(b'\xff')
                end=recv_data.find(b'\xfe')
                if(start==-1 or end ==-1):
                    break
                target.recv_handler(recv_data[start:end+1])
                recv_data=recv_data[end+1:]
        else:
            break
    myprint(f"客户端：{tcp_addr} 已下线")
    target.close()
    tcp_client_1.close()



def start_service():
    tcp_server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    tcp_server.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,True)
    tcp_server.bind(("",SERVER_PORT))

    myprint(f"开始监听 ({SERVER_PORT})")
    tcp_server.listen(128)

    while True:
        tcp_client_1 , tcp_client_address = tcp_server.accept()
        thd = threading.Thread(target = dispose_client_request, args = (tcp_client_1,tcp_client_address))
        # 设置守护主线程  即如果主线程结束了 那子线程中也都销毁了  防止主线程无法退出
        # thd.setDaemon(True)
        thd.start()


if __name__ == "__main__":
    log_init("proxy_service.log")
    start_service()