import socket
import _thread


class TCPServer(socket.socket):
    clients = []

    def __init__(self):
        socket.socket.__init__(self)
        self.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.bind(('0.0.0.0', 8765))
        self.listen(5)

    def run(self):
        print("Starting TCP Server")
        try:
            self.accept_clients()
        except Exception as ex:
            print(ex)
        finally:
            print("Server shutdown")
            for client in self.clients:
                client.close()
            self.close()

    def accept_clients(self):
        while True:
            (client_socket, address) = self.accept()
            self.clients.append(client_socket)
            self.on_open(client_socket)
            _thread.start_new_thread(self.receive, (client_socket,))

    def receive(self, client):
        while True:
            data = client.recv(1024)
            if data == '':
                break
            self.on_message(client, data)
        self.clients.remove(client)
        self.on_close(client)
        client.close()
        _thread.exit()

    def on_open(self, client):
        pass

    def on_message(self, client, message):
        pass

    def on_close(self, client):
        pass