#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Author: Volkan Şahin <volkansah.in> <bm.volkansahin@gmail.com>

import platform
import psutil
import cpuinfo
import re
import os
import configparser


class System:
    class Ahenk(object):

        @staticmethod
        def installed_plugins():
            plugin_names = []
            possible_plugins = os.listdir(System.Ahenk.plugins_path())
            for plugin_name in possible_plugins:
                location = os.path.join(System.Ahenk.plugins_path(), plugin_name)
                if os.path.isdir(location) and System.Ahenk.module_name() + ".py" in os.listdir(location):
                    plugin_names.append(plugin_name)
            return plugin_names

        @staticmethod
        def db_path():
            config = configparser.ConfigParser()
            config._interpolation = configparser.ExtendedInterpolation()
            config.read(System.Ahenk.config_path())
            return config.get('BASE', 'dbPath')

        @staticmethod
        def plugins_path():
            config = configparser.ConfigParser()
            config._interpolation = configparser.ExtendedInterpolation()
            config.read(System.Ahenk.config_path())
            return config.get('PLUGIN', 'pluginfolderpath')

        @staticmethod
        def module_name():
            config = configparser.ConfigParser()
            config._interpolation = configparser.ExtendedInterpolation()
            config.read(System.Ahenk.config_path())
            return config.get('PLUGIN', 'mainModuleName')

        @staticmethod
        def get_pid_number():
            pid_number = None
            try:
                if os.path.exists(System.Ahenk.pid_path()):
                    file = open(System.Ahenk.pid_path(), 'r')
                    pid_number = file.read()
                    file.close()
                return pid_number
            except Exception as e:
                return None

        @staticmethod
        def is_running():

            try:
                if System.Ahenk.get_pid_number() is not None:
                    if psutil.Process(int(System.Ahenk.get_pid_number())).is_running() is True:
                        return True
                else:
                    return False
            except Exception as e:
                return False



        @staticmethod
        def config_path():
            return '/etc/ahenk/ahenk.conf'

        @staticmethod
        def pid_path():
            return '/var/run/ahenk.pid'

    class Process(object):

        @staticmethod
        def pids():
            return psutil.pids()

        @staticmethod
        def find_pid_by_name(p_name):
            for id in psutil.pids():
                if psutil.Process(id).name() == p_name:
                    return id
            return None


        @staticmethod
        def process_by_pid(pid):
            return psutil.Process(pid)

        @staticmethod
        def kill_by_pid(pid):
            return psutil.Process(pid).kill()

        @staticmethod
        def find_name_by_pid(pid):
            return psutil.Process(pid).name()

        @staticmethod
        def path(pid):
            return psutil.Process(pid).exe()

        @staticmethod
        def working_directory(pid):
            return psutil.Process(pid).cwd()

        @staticmethod
        def command_line(pid):
            return psutil.Process(pid).cmdline()

        @staticmethod
        def status(pid):
            return psutil.Process(pid).status()

        @staticmethod
        def username(pid):
            return psutil.Process(pid).username()

        @staticmethod
        def create_time(pid):
            return psutil.Process(pid).create_time()

        @staticmethod
        def cpu_times(pid):
            return psutil.Process(pid).cpu_times()

        @staticmethod
        def cpu_percent(pid):
            return psutil.Process(pid).cpu_percent(interval=1.0)

        @staticmethod
        def memory_percent(pid):
            return psutil.Process(pid).memory_percent()

        @staticmethod
        def open_files(pid):
            return psutil.Process(pid).open_files()

        @staticmethod
        def connections(pid):
            return psutil.Process(pid).connections()

        @staticmethod
        def threads(pid):
            return psutil.Process(pid).threads()

        @staticmethod
        def nice(pid):
            return psutil.Process(pid).nice()

        @staticmethod
        def environment(pid):
            return psutil.Process(pid).environ()

        @staticmethod
        def details():
            return psutil.test()

    class Sessions(object):

        @staticmethod
        def user_name():
            arr = []
            for user in psutil.users():
                if str(user[0]) is not 'None' and user[0] not in arr:
                    arr.append(user[0])
            return arr

        @staticmethod
        def user_details():
            return psutil.users()

        @staticmethod
        def last_login_username():
            # TODO
            pass

    class Os(object):

        @staticmethod
        def boot_time():
            return psutil.boot_time()

        @staticmethod
        def architecture():
            return platform.architecture()[0]

        @staticmethod
        def file_format():
            return platform.architecture()[1]

        @staticmethod
        def name():
            return platform.system()

        @staticmethod
        def distribution_name():
            return platform.linux_distribution()[0]

        @staticmethod
        def distribution_version():
            return platform.linux_distribution()[1]

        @staticmethod
        def distribution_id():
            return platform.linux_distribution()[2]

        @staticmethod
        def version():
            return platform.version()

        @staticmethod
        def kernel_release():
            return platform.release()

        @staticmethod
        def hostname():
            return platform.node()

    class Hardware(object):

        class Memory(object):

            @staticmethod
            def total():
                return int(int(psutil.virtual_memory()[0]) / (1024 * 1024))

            @staticmethod
            def available():
                return int(int(psutil.virtual_memory()[1]) / (1024 * 1024))

            @staticmethod
            def percent():
                return psutil.virtual_memory()[2]

            @staticmethod
            def used():
                return int(int(psutil.virtual_memory()[3]) / (1024 * 1024))

            @staticmethod
            def free():
                return int(int(psutil.virtual_memory()[4]) / (1024 * 1024))

        class Disk(object):

            @staticmethod
            def total():
                return int(int(psutil.disk_usage('/')[0]) / (1024 * 1024))

            @staticmethod
            def used():
                return int(int(psutil.disk_usage('/')[1]) / (1024 * 1024))

            @staticmethod
            def free():
                return int(int(psutil.disk_usage('/')[2]) / (1024 * 1024))

            @staticmethod
            def percent():
                return psutil.disk_usage('/')[3]

            @staticmethod
            def partitions():
                return psutil.disk_partitions()

        class Network(object):

            @staticmethod
            def interface_size():
                return len(psutil.net_io_counters(pernic=True))

            @staticmethod
            def interfaces_details():
                return psutil.net_if_addrs()

            @staticmethod
            def io_counter_detail():
                return psutil.net_io_counters(pernic=True)

            @staticmethod
            def interfaces():
                arr = []
                for iface in psutil.net_if_addrs():
                    arr.append(str(iface))
                return arr

            @staticmethod
            def ip_addresses():
                arr = []
                for iface in psutil.net_io_counters(pernic=True):
                    ip = psutil.net_if_addrs()[str(iface)][0][1]
                    if re.match(r'^((\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\.){3}(\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])$', ip) and str(ip) != 'localhost' and str(ip) != '127.0.0.1':
                        arr.append(ip)
                return arr

            @staticmethod
            def mac_addresses():
                arr = []
                for iface in psutil.net_io_counters(pernic=True):
                    try:
                        addr_list=psutil.net_if_addrs()
                        mac = addr_list[str(iface)][2][1]
                        if re.match("[0-9a-f]{2}([-:])[0-9a-f]{2}(\\1[0-9a-f]{2}){4}$", mac.lower()) and str(mac) != '00:00:00:00:00:00':
                            arr.append(mac.lower())
                    except Exception as e:
                        pass
                return arr

        class Cpu(object):

            @staticmethod
            def physical_core_count():
                return psutil.cpu_count(logical=False)

            @staticmethod
            def logical_core_count():
                return psutil.cpu_count(logical=True)

            @staticmethod
            def stats():
                return psutil.cpu_stats()

            @staticmethod
            def times():
                return psutil.cpu_times()

            @staticmethod
            def architecture():
                return platform.processor()

            @staticmethod
            def vendor():
                return cpuinfo.get_cpu_info()['vendor_id']

            @staticmethod
            def brand():
                return cpuinfo.get_cpu_info()['brand']

            @staticmethod
            def hz_advertised():
                return cpuinfo.get_cpu_info()['hz_advertised']

            @staticmethod
            def hz_actual():
                return cpuinfo.get_cpu_info()['hz_actual']

            @staticmethod
            def bit():
                return cpuinfo.get_cpu_info()['bits']

            @staticmethod
            def family():
                return cpuinfo.get_cpu_info()['family']

            @staticmethod
            def model():
                return cpuinfo.get_cpu_info()['model']