import os
import re
import sys
import shutil
import subprocess
import traceback

from time import time
from io import StringIO
from sys import version as pyver
from inspect import getfullargspec

from config import BOT_USERNAME as bname
from driver.core import bot
from driver.filters import command
from pyrogram import Client, filters
from driver.decorators import sudo_users_only, errors
from pyrogram.types import Message, InlineKeyboardButton, InlineKeyboardMarkup


async def aexec(code, client, message):
    exec(
        "async def __aexec(client, message): "
        + "".join(f"\n {a}" for a in code.split("\n"))
    )
    return await locals()["__aexec"](client, message)

async def edit_or_reply(msg: Message, **kwargs):
    func = msg.edit_text if msg.from_user.is_self else msg.reply
    spec = getfullargspec(func.__wrapped__).args
    await func(**{k: v for k, v in kwargs.items() if k in spec})


@Client.on_message(command(["eval", f"eval{bname}"]) & ~filters.edited)
@sudo_users_only
async def executor(client, message):
    if len(message.command) < 2:
        return await edit_or_reply(message, text="» Give a command to execute")
    try:
        cmd = message.text.split(" ", maxsplit=1)[1]
    except IndexError:
        return await message.delete()
    t1 = time()
    old_stderr = sys.stderr
    old_stdout = sys.stdout
    redirected_output = sys.stdout = StringIO()
    redirected_error = sys.stderr = StringIO()
    stdout, stderr, exc = None, None, None
    try:
        await aexec(cmd, client, message)
    except Exception:
        exc = traceback.format_exc()
    stdout = redirected_output.getvalue()
    stderr = redirected_error.getvalue()
    sys.stdout = old_stdout
    sys.stderr = old_stderr
    evaluation = ""
    if exc:
        evaluation = exc
    elif stderr:
        evaluation = stderr
    elif stdout:
        evaluation = stdout
    else:
        evaluation = "SUCCESS"
    final_output = f"`OUTPUT:`\n\n```{evaluation.strip()}```"
    if len(final_output) > 4096:
        filename = "output.txt"
        with open(filename, "w+", encoding="utf8") as out_file:
            out_file.write(str(evaluation.strip()))
        t2 = time()
        keyboard = InlineKeyboardMarkup(
            [
                [
                    InlineKeyboardButton(
                        text="⏳", callback_data=f"runtime {t2-t1} seconds"
                    )
                ]
            ]
        )
        await message.reply_document(
            document=filename,
            caption=f"`INPUT:`\n`{cmd[0:980]}`\n\n`OUTPUT:`\n`attached document`",
            quote=False,
            reply_markup=keyboard,
        )
        await message.delete()
        os.remove(filename)
    else:
        t2 = time()
        keyboard = InlineKeyboardMarkup(
            [
                [
                    InlineKeyboardButton(
                        text="⏳",
                        callback_data=f"runtime {round(t2-t1, 3)} seconds",
                    )
                ]
            ]
        )
        await edit_or_reply(message, text=final_output, reply_markup=keyboard)


@Client.on_callback_query(filters.regex(r"runtime"))
async def runtime_func_cq(_, cq):
    runtime = cq.data.split(None, 1)[1]
    await cq.answer(runtime, show_alert=True)


@Client.on_message(command(["sh", f"sh{bname}"]) & ~filters.edited)
@sudo_users_only
async def shellrunner(client, message):
    if len(message.command) < 2:
        return await edit_or_reply(message, text="**usage:**\n\n» /sh echo hello world")
    text = message.text.split(None, 1)[1]
    if "\n" in text:
        code = text.split("\n")
        output = ""
        for x in code:
            shell = re.split(""" (?=(?:[^'"]|'[^']*'|"[^"]*")*$)""", x)
            try:
                process = subprocess.Popen(
                    shell,
                    stdout=subprocess.PIPE,
                    stderr=subprocess.PIPE,
                )
            except Exception as err:
                print(err)
                await edit_or_reply(message, text=f"`ERROR:`\n\n```{err}```")
            output += f"**{code}**\n"
            output += process.stdout.read()[:-1].decode("utf-8")
            output += "\n"
    else:
        shell = re.split(""" (?=(?:[^'"]|'[^']*'|"[^"]*")*$)""", text)
        for a in range(len(shell)):
            shell[a] = shell[a].replace('"', "")
        try:
            process = subprocess.Popen(
                shell,
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE,
            )
        except Exception as err:
            print(err)
            exc_type, exc_obj, exc_tb = sys.exc_info()
            errors = traceback.format_exception(
                etype=exc_type,
                value=exc_obj,
                tb=exc_tb,
            )
            return await edit_or_reply(
                message, text=f"`ERROR:`\n\n```{''.join(errors)}```"
            )
        output = process.stdout.read()[:-1].decode("utf-8")
    if str(output) == "\n":
        output = None
    if output:
        if len(output) > 4096:
            with open("output.txt", "w+") as file:
                file.write(output)
            await bot.send_document(
                message.chat.id,
                "output.txt",
                reply_to_message_id=message.message_id,
                caption="`OUTPUT`",
            )
            return os.remove("output.txt")
        await edit_or_reply(message, text=f"`OUTPUT:`\n\n```{output}```")
    else:
        await edit_or_reply(message, text="`OUTPUT:`\n\n`no output`")


@Client.on_message(command(["leavebot", f"leavebot{bname}"]) & ~filters.edited)
@sudo_users_only
async def bot_leave_group(_, message):
    if len(message.command) != 2:
        await message.reply_text(
            "**usage:**\n\n» /leavebot [chat id]"
        )
        return
    chat = message.text.split(None, 2)[1]
    try:
        await bot.leave_chat(chat)
    except Exception as e:
        await message.reply_text(f"❌ procces failed\n\nreason: `{e}`")
        print(e)
        return
    await message.reply_text(f"✅ Bot successfully left from the Group:\n\n💭 » `{chat}`")