import configparser
import json
import os
import subprocess

import requests

mp4_path = '/home/pi/mp4'
config = configparser.ConfigParser()
config.read('/home/pi/lot_manager/conf/main/common.conf')


def push_stream(client):
    p = subprocess.Popen(['/bin/bash /home/pi/lot_manager/bash/start_push_stream.sh'],
                         shell=True,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    output = out.decode('utf-8').strip()
    client.publish('success', payload=json.dumps(output, ensure_ascii=False), qos=0)


def close_stream(client):
    p = subprocess.Popen(['/bin/bash /home/pi/lot_manager/bash/stop_push_stream.sh'],
                         shell=True,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    output = out.decode('utf-8').strip()
    client.publish('success', payload=json.dumps(output, ensure_ascii=False), qos=0)


def exec_sh(msg, client):
    origin_data = json.loads(msg.payload.decode('utf-8'))
    if 'data' not in origin_data:
        client.publish('error', payload='data must be supplied', qos=0)
        return
    cmd = origin_data["data"]
    if cmd == "supervisorctl stop __mqtt__" or cmd == "supervisorctl restart __mqtt__":
        return
    if cmd == "supervisorctl reload":
        client.publish('success', payload='reloading', qos=0)
        subprocess.Popen([cmd], shell=True)
        return
    p = subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    out, err = p.communicate()
    output = out.decode('utf-8').strip()
    client.publish('success', payload=json.dumps(output, ensure_ascii=False), qos=0)


def get_status(client):
    p = subprocess.Popen(['supervisorctl status'],
                         shell=True,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    output = out.decode('utf-8').strip()
    client.publish('success', payload=json.dumps(output, ensure_ascii=False), qos=0)


def update(client):
    p = subprocess.Popen(['/bin/bash /home/pi/lot_manager/git_update.sh'],
                         shell=True,
                         stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE)
    out, err = p.communicate()
    output = out.decode('utf-8').strip()
    client.publish('success', payload=json.dumps(output, ensure_ascii=False), qos=0)


def get_list_record():
    data = {
        "data": os.listdir(mp4_path)
    }
    post_record_list_url = config.get("record", "post_record_list_url")
    requests.post(post_record_list_url, json=data)


def get_record(msg, client):
    filename = json.loads(msg.payload.decode('utf-8'))["data"]
    if filename is None or filename == '':
        client.publish('error', payload='没有该文件', qos=0)
        return
    post_record_url = config.get("record", "post_record_url")
    files = {filename: open(os.path.join(mp4_path, filename), 'rb'), "Content-Type": "application/octet-stream"}
    requests.post(post_record_url, files=files)