from utils.texts import (
    UNKNOWN_MAIN_CMD_TEXT,
    EMOJI_DIGITS,
    INSTRUCT_MAIN_MENU_TEXT,
    INSTRUCT_TRUECONF_TEXT,
    INSTRUCT_TRUECONF_WITH_AD,
    INSTRUCT_EMAIL_TEXT,
)
import logging
import asyncio

from trueconf import Router, Message

from utils.states import get_state, set_state, clear_state

# 🔌 Импортируем централизованную функцию сбора статистики из main
from utils.stats_logger import log_menu_stats

logger = logging.getLogger(__name__)

router = Router()


def _get_user_cn(user_id: str) -> str:
    """
    Получить CN пользователя из AD по его user_id (email или логин).
    user_id из TrueConf — это обычно email, например 'ds.krivochenko@sibcem.ru'
    """
    from ldap3 import Server, Connection, ALL
    from config.config import AD_SERVER, AD_USER, AD_PASSWORD, AD_BASE
    from ldap3.utils.conv import escape_filter_chars

    try:
        server = Server(AD_SERVER, get_info=ALL)
        conn = Connection(server, user=AD_USER, password=AD_PASSWORD, auto_bind=True)
        safe_id = escape_filter_chars(user_id)
        short_username = user_id.split('@')[0] if '@' in user_id else user_id
        search_filter = (
            f"(&(objectClass=user)(|"
            f"(mail={safe_id})"
            f"(userPrincipalName={safe_id})"
            f"(userPrincipalName={escape_filter_chars(f'{short_username}@sibcem.ru')}))"
            f"(sAMAccountName={escape_filter_chars(short_username)})))"
        )
        conn.search(AD_BASE, search_filter, attributes=["cn", "sAMAccountName"])
        if conn.entries:
            return str(conn.entries[0].cn)
    except Exception as e:
        logger.error(f"Ошибка получения CN из AD для {user_id}: {e}")
    return user_id  # fallback — используем user_id как CN


@router.message()
async def instruct_router_handler(msg: Message):
    user_id = msg.from_user.id

    current_state = get_state(user_id)

    if not msg.text:
        return

    cmd = msg.text.strip().lower()

    for raw_num, emoji_num in EMOJI_DIGITS.items():
        if cmd == emoji_num:
            cmd = raw_num
            break

    if current_state is None:
        from utils.menu import MENU_MAP
        if MENU_MAP.get(cmd) == "INSTRUCT":
            msg.handled = True
            set_state(user_id, "INSTRUCT_MODE")
            await msg.answer(INSTRUCT_MAIN_MENU_TEXT, parse_mode="html")
            return
        return

    if current_state == "INSTRUCT_MODE":
        msg.handled = True
        if cmd == "0":
            log_menu_stats(user_id, "Инструкции", "Выход в главное меню")
            clear_state(user_id)
            from utils.menu import MENU_TEXT
            await msg.answer(MENU_TEXT, parse_mode="html")
        elif cmd == "1":
            log_menu_stats(user_id, "Инструкции", "Trueconf")
            set_state(user_id, "INSTRUCT_TRUECONF_VIEW")
            cn = _get_user_cn(user_id)
            text = INSTRUCT_TRUECONF_WITH_AD(EMOJI_DIGITS, cn)
            await msg.answer(text, parse_mode="html")
        elif cmd == "2":
            log_menu_stats(user_id, "Инструкции", "Почта")
            set_state(user_id, "INSTRUCT_EMAIL_VIEW")
            await msg.answer(INSTRUCT_EMAIL_TEXT, parse_mode="html")
        else:
            await msg.answer(UNKNOWN_MAIN_CMD_TEXT, parse_mode="html")

    elif current_state in ["INSTRUCT_TRUECONF_VIEW", "INSTRUCT_EMAIL_VIEW"]:
        msg.handled = True
        if cmd == "0":
            clear_state(user_id)
            from utils.menu import MENU_TEXT
            await msg.answer(MENU_TEXT, parse_mode="html")
        elif cmd == "9":
            set_state(user_id, "INSTRUCT_MODE")
            await msg.answer(INSTRUCT_MAIN_MENU_TEXT, parse_mode="html")
        else:
            await msg.answer(UNKNOWN_MAIN_CMD_TEXT, parse_mode="html")