import html
import sys
from getpass import getuser
from os.path import exists, sep
from platform import node
from time import perf_counter

from pagermaid import Config
from pagermaid.common.system import run_eval, paste_pb
from pagermaid.enums import Message
from pagermaid.listener import listener
from pagermaid.utils import attach_log, execute, lang, upload_attachment

code_result = (
    f"<b>{lang('eval_code')}</b>\n"
    '<pre language="{}">{}</pre>\n\n'
    f'<b>{lang("eval_result")}</b>\n'
    "{}\n"
    f"<b>{lang('eval_time')}</b>"
)


@listener(
    is_plugin=False,
    command="sh",
    need_admin=True,
    description=lang("sh_des"),
    parameters=lang("sh_parameters"),
)
async def sh(message: Message):
    """Use the command-line from Telegram."""
    user = getuser()
    command = message.arguments
    hostname = node()

    if not command:
        await message.edit(lang("arg_error"))
        return

    message = await message.edit(f"`{user}`@{hostname} ~\n> `$` {command}")

    result = await execute(command)

    if result:
        final_result = None
        if len(result) > 3072:
            if Config.USE_PB:
                url = await paste_pb(result)
                if url:
                    final_result = html.escape(f"{url}/bash")
        else:
            final_result = f"<code>{html.escape(result)}</code>"

        if (len(result) > 3072 and not Config.USE_PB) or final_result is None:
            await attach_log(result, message.chat.id, "output.log", message.id)
            return
        await message.edit(f"`{user}`@{hostname} ~\n> `#` {command}\n\n{final_result}")
    else:
        return


@listener(
    is_plugin=False, command="restart", need_admin=True, description=lang("restart_des")
)
async def restart(message: Message):
    """To re-execute PagerMaid."""
    if not message.text[0].isalpha():
        await message.edit(lang("restart_log"))
        sys.exit(0)


@listener(
    is_plugin=False,
    command="eval",
    need_admin=True,
    description=lang("eval_des"),
    parameters=lang("eval_parameters"),
)
async def sh_eval(message: Message):
    """Run python commands from Telegram."""
    dev_mode = exists(f"data{sep}dev")
    try:
        if not dev_mode:
            raise AssertionError
        cmd = message.text.split(" ", maxsplit=1)[1]
    except (IndexError, AssertionError):
        return await message.edit(lang("eval_need_dev"))
    message = await message.edit_text(f"<b>{lang('eval_executing')}</b>")
    start_time = perf_counter()
    final_output = await run_eval(cmd, message)
    stop_time = perf_counter()

    result = None
    if len(final_output) > 3072:
        if Config.USE_PB:
            url = await paste_pb(final_output)
            if url:
                result = html.escape(f"{url}/python")
    else:
        result = f"<code>{html.escape(final_output)}</code>"
    text = code_result.format(
        "python",
        html.escape(cmd),
        result if result else "...",
        round(stop_time - start_time, 5),
    )

    await message.edit(text)
    if (len(final_output) > 3072 and not Config.USE_PB) or result is None:
        await attach_log(final_output, message.chat.id, "output.log", message.id)


@listener(
    is_plugin=False,
    command="send_log",
    need_admin=True,
    description=lang("send_log_des"),
)
async def send_log(message: Message):
    """Send log to a chat."""
    if not exists("data/pagermaid.log.txt"):
        return await message.edit(lang("send_log_not_found"))
    await upload_attachment(
        "data/pagermaid.log.txt",
        message.chat.id,
        message.reply_to_message_id,
        message_thread_id=message.message_thread_id,
        thumb=f"pagermaid{sep}assets{sep}logo.jpg",
        caption=lang("send_log_caption"),
    )
    await message.safe_delete()