""" PagerMaid module that contains utilities related to system status. """

import re

from datetime import datetime, timezone
from platform import uname, python_version
from sys import platform

from pyrogram import __version__
from pyrogram.enums import ChatType
from pyrogram.raw.functions import Ping
from pyrogram.enums.parse_mode import ParseMode

from getpass import getuser
from socket import gethostname
from time import time
from psutil import boot_time, virtual_memory, disk_partitions
from shutil import disk_usage
from subprocess import Popen, PIPE

from pagermaid import start_time, Config, pgm_version
from pagermaid.common.status import get_bot_uptime
from pagermaid.enums import Client, Message
from pagermaid.listener import listener
from pagermaid.utils import lang, execute

DCs = {
    1: "149.154.175.50",
    2: "149.154.167.51",
    3: "149.154.175.100",
    4: "149.154.167.91",
    5: "91.108.56.130",
}


@listener(is_plugin=False, command="sysinfo", description=lang("sysinfo_des"))
async def sysinfo(message: Message):
    """Retrieve system information via neofetch."""
    if not Config.SILENT:
        message = await message.edit(lang("sysinfo_loading"))
    if platform == "win32":
        return await message.edit(neofetch_win(), parse_mode=ParseMode.HTML)
    result = await execute("neofetch --config none --stdout")
    await message.edit(f"`{result}`")


@listener(is_plugin=False, command="status", description=lang("status_des"))
async def status(message: Message):
    # database
    # database = lang('status_online') if redis_status() else lang('status_offline')
    # uptime https://gist.github.com/borgstrom/936ca741e885a1438c374824efb038b3
    uptime = await get_bot_uptime()
    text = (
        f"**{lang('status_hint')}** \n"
        f"{lang('status_name')}: `{uname().node}` \n"
        f"{lang('status_platform')}: `{platform}` \n"
        f"{lang('status_release')}: `{uname().release}` \n"
        f"{lang('status_python')}: `{python_version()}` \n"
        f"{lang('status_pyrogram')}: `{__version__}` \n"
        f"{lang('status_pgm')}: `{pgm_version}`\n"
        f"{lang('status_uptime')}: `{uptime}`"
    )
    await message.edit(text)


@listener(is_plugin=False, command="stats", description=lang("stats_des"))
async def stats(client: Client, message: Message):
    msg = await message.edit(lang("stats_loading"))
    a, u, g, s, c, b = 0, 0, 0, 0, 0, 0
    for dialog in await client.get_dialogs_list():
        chat_type = dialog.chat.type
        if chat_type == ChatType.BOT:
            b += 1
        elif chat_type == ChatType.PRIVATE:
            u += 1
        elif chat_type == ChatType.GROUP:
            g += 1
        elif chat_type == ChatType.SUPERGROUP:
            s += 1
        elif chat_type == ChatType.CHANNEL:
            c += 1
        a += 1
    text = (
        f"**{lang('stats_hint')}** \n"
        f"{lang('stats_dialogs')}: `{a}` \n"
        f"{lang('stats_private')}: `{u}` \n"
        f"{lang('stats_group')}: `{g}` \n"
        f"{lang('stats_supergroup')}: `{s}` \n"
        f"{lang('stats_channel')}: `{c}` \n"
        f"{lang('stats_bot')}: `{b}`"
    )
    await msg.edit(text)


@listener(is_plugin=False, command="pingdc", description=lang("pingdc_des"))
async def ping_dc(message: Message):
    """Ping your or other data center's IP addresses."""
    data = []
    print("1")
    for dc in range(1, 6):
        if platform == "win32":
            result = await execute(f'ping -n 1 {DCs[dc]} | find "最短"')
            if result := re.findall(r"= (.*?)ms", result or ""):
                data.append(result[0])
            else:
                data.append("0")
        else:
            result = await execute(
                f"ping -c 1 {DCs[dc]} | awk -F '/' " + "'END {print $5}'"
            )
            try:
                data.append(str(float(result)))
            except ValueError:
                data.append("0")
    await message.edit(
        f"{lang('pingdc_1')}: `{data[0]}ms`\n"
        f"{lang('pingdc_2')}: `{data[1]}ms`\n"
        f"{lang('pingdc_3')}: `{data[2]}ms`\n"
        f"{lang('pingdc_4')}: `{data[3]}ms`\n"
        f"{lang('pingdc_5')}: `{data[4]}ms`"
    )


@listener(is_plugin=False, command="ping", description=lang("ping_des"))
async def ping(client: Client, message: Message):
    """Calculates latency between PagerMaid and Telegram."""
    start = datetime.now()
    await client.invoke(Ping(ping_id=0))
    end = datetime.now()
    ping_duration = (end - start).microseconds / 1000
    start = datetime.now()
    message = await message.edit("Pong!")
    end = datetime.now()
    msg_duration = (end - start).microseconds / 1000
    await message.edit(f"Pong!| PING: {ping_duration} | MSG: {msg_duration}")


def wmic(command: str):
    """Fetch the wmic command to cmd"""
    try:
        p = Popen(command.split(" "), stdout=PIPE)
    except FileNotFoundError:
        return r"WMIC.exe was not found... Make sure 'C:\Windows\System32\wbem' is added to PATH."

    stdout, stderror = p.communicate()

    output = stdout.decode("gbk", "ignore")
    lines = output.split("\r\r")
    lines = [g.replace("\n", "").replace("  ", "") for g in lines if len(g) > 2]
    return lines


def get_uptime():
    """Get the device uptime"""
    delta = round(time() - boot_time())

    hours, remainder = divmod(int(delta), 3600)
    minutes, seconds = divmod(remainder, 60)
    days, hours = divmod(hours, 24)

    def include_s(text: str, num: int):
        return f"{num} {text}{'' if num == 1 else 's'}"

    d = include_s("day", days)
    h = include_s("hour", hours)
    m = include_s("minute", minutes)
    s = include_s("second", seconds)

    if days:
        output = f"{d}, {h}, {m} and {s}"
    elif hours:
        output = f"{h}, {m} and {s}"
    elif minutes:
        output = f"{m} and {s}"
    else:
        output = s

    return output


def readable(num, suffix="B"):
    """Convert Bytes into human-readable formats"""
    for unit in ["", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"]:
        if abs(num) < 1024.0:
            return "%3.1f%s%s" % (num, unit, suffix)
        num /= 1024.0
    return "%.1f%s%s" % (num, "Yi", suffix)


def get_ram():
    """Get RAM used/free/total"""
    ram = virtual_memory()
    used = readable(ram.used)
    total = readable(ram.total)

    percent_used = round(ram.used / ram.total * 100, 2)

    return f"{used} / {total} ({percent_used}%)"


def partitions():
    """Find the disk partitions on current OS"""
    parts = disk_partitions()
    listparts = []

    for g in parts:
        try:
            total, used, free = disk_usage(g.device)
            percent_used = round(used / total * 100, 2)
            listparts.append(
                f"      {g.device[:2]} {readable(used)} / {readable(total)} ({percent_used}%)"
            )
        except PermissionError:
            continue

    return listparts


def neofetch_win():
    user_name = getuser()
    host_name = gethostname()
    os = wmic("wmic os get Caption")[-1].replace("Microsoft ", "")
    uptime = get_uptime()
    mboard_name = wmic("wmic baseboard get Manufacturer")
    mboard_module = wmic("wmic baseboard get product")
    try:
        mboard = f"{mboard_name[-1]} ({mboard_module[-1]})"
    except IndexError:
        mboard = "Unknown..."
    cpu = wmic("wmic cpu get name")[-1]
    gpu = wmic("wmic path win32_VideoController get name")
    gpu = [f"     {g.strip()}" for g in gpu[1:]][0].strip()
    ram = get_ram()
    disks = "\n".join(partitions())
    return (
        f"<code>{user_name}@{host_name}\n---------\nOS: {os}\nUptime: {uptime}\n"
        f"Motherboard: {mboard}\nCPU: {cpu}\nGPU: {gpu}\nMemory: {ram}\n"
        f"Disk:\n{disks}</code>"
    )