import datetime
import json
import random

import psutil

command = {}
command['command'] = {}
command['command']['ps'] = []

randomStates = ["Ss", "S<", "D<", "Ss+"]
for proc in psutil.process_iter():
    try:
        info = proc.as_dict(
            attrs=['pid', 'name', 'cmdline', 'username', 'cpu_percent', 'memory_percent', 'memory_info', 'create_time',
                   'terminal', 'status', 'cpu_times'])
    except psutil.NoSuchProcess:
        pass
    else:
        object = {}
        object['USER'] = info['username']
        object['PID'] = info['pid']
        if info['cmdline']:
            object['COMMAND'] = "/".join(info['cmdline'])
        else:
            object['COMMAND'] = '[ ' + info['name'] + ' ]'
        object['CPU'] = info['cpu_percent']
        object['MEM'] = info['memory_percent']
        object['RSS'] = info['memory_info'].rss
        object['VSZ'] = info['memory_info'].vms
        object['START'] = datetime.datetime.fromtimestamp(info['create_time']).strftime("%b%d")
        if info['terminal']:
            object['TTY'] = str(info['terminal']).replace("/dev/", "")
        else:
            object['TTY'] = "?"
        object['STAT'] = random.choice(randomStates)
        object['TIME'] = info['cpu_times'].user
        command['command']['ps'].append(object)

print(json.dumps(command, indent=4, sort_keys=True))