import socket
import struct
import json
import os
import PySimpleGUI as sg


def recvdata(conn, filepath):
    header_size = struct.unpack('i', conn.recv(4))[0]
    header_bytes = conn.recv(header_size)
    header_json = header_bytes.decode('utf-8')
    header_dic = json.loads(header_json)
    content_len = header_dic['contentlen']
    content_name = header_dic['contentname']
    recv_len = 0
    pdf = os.path.join(filepath, content_name)
    with open(pdf, 'wb') as file:
        while recv_len < content_len:
            correntrecv = conn.recv(1024 * 1000)
            file.write(correntrecv)
            recv_len += len(correntrecv)


def senddata(conn, path, select_type):
    name = os.path.basename(os.path.realpath(path))
    try:
        with open(path, 'rb') as file:
            content = file.read()
            headerdic = dict(
                contentlen=len(content),
                contentname=name,
                select_type=select_type
            )
            headerjson = json.dumps(headerdic)
            headerbytes = headerjson.encode('utf-8')
            headersize = len(headerbytes)
            conn.send(struct.pack('i', headersize))
            conn.send(headerbytes)
            conn.sendall(content)
    except ConnectionResetError:
        print('不存在这个文件！')


def connect():
    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    dest_ip = '192.168.11.121'
    dest_port = int(8191)
    client.connect((dest_ip, dest_port))
    return client


def transclient(sendfile, resfile, select_type):
    conn = connect()
    senddata(conn, sendfile, select_type)
    recvdata(conn, resfile)


def make_gui():
    while True:
        layout = [
            [sg.Text('选择排样程序')],
            [sg.Radio('T7', 'layout', key='t7', default=True), sg.Radio('nova', 'layout', key='nova'),
             sg.Radio('Xplus', 'layout', key='xplus')],
            [
                sg.Text('导入排样excel')],
            [
                sg.Input(key='_FILE1_'), sg.FileBrowse()],
            [
                sg.Text('生成排样位置')],
            [
                sg.Input(key='_FILE2_'), sg.FolderBrowse()],
            [
                sg.OK(), sg.Cancel()]]
        window = sg.Window('解码排样测试程序', layout)
        event, values = window.Read()
        if event == 'OK':
            if values['nova']:
                select_type = 'nova'
            elif values['xplus']:
                select_type = 'xplus'
            else:
                select_type = 't7'
            transclient(values['_FILE1_'], os.path.join(values['_FILE2_']), select_type)
            sg.Popup('排样成功！')
        else:
            window.Close()
            break


if __name__ == '__main__':
    # respath = 'result'
    # transclient(os.path.join('example', '0520_T7_1.xlsx'), respath)
    make_gui()