import json
import os
import subprocess

import requests

from config import mp4_path, post_record_list_url, post_record_url


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 in ["supervisorctl stop __mqtt__",
               "supervisorctl restart __mqtt__",
               "supervisorctl stop all"]:
        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 reload(client):
    subprocess.Popen(['supervisorctl reload'], shell=True)
    client.publish('success', payload="reloading", qos=0)


def get_list_record():
    data = {
        "data": os.listdir(mp4_path)
    }
    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

    files = {filename: open(os.path.join(mp4_path, filename), 'rb'), "Content-Type": "application/octet-stream"}
    requests.post(post_record_url, files=files)