import os
import asyncio
from aiogram import Bot, Dispatcher, types
from aiogram.filters import Command
from aiogram.types import InlineKeyboardMarkup, InlineKeyboardButton
from dotenv import load_dotenv
from librouteros import connect
from librouteros.exceptions import TrapError
from fastapi import FastAPI, Request
import uvicorn
from db import init_db, upsert_client, start_session, update_session, close_session, get_history, get_clients, get_stats

load_dotenv()

TG_BOT_TOKEN = os.getenv("TG_BOT_TOKEN")
MT_API_HOST = os.getenv("MT_API_HOST")
MT_API_USER = os.getenv("MT_API_USER")
MT_API_PASS = os.getenv("MT_API_PASS")
ALLOWED_USER_IDS = set(map(int, os.getenv("ALLOWED_USER_IDS", "").split(",")))

bot = Bot(token=TG_BOT_TOKEN)
dp = Dispatcher()

# Авторизация по user_id
async def check_user(message: types.Message) -> bool:
    if message.from_user.id not in ALLOWED_USER_IDS:
        await message.answer("⛔️ Нет доступа")
        return False
    return True

# Подключение к MikroTik API

def get_mt_api():
    return connect(username=MT_API_USER, password=MT_API_PASS, host=MT_API_HOST)

@dp.message(Command("start"))
async def start_cmd(msg: types.Message):
    if not await check_user(msg):
        return
    kb = InlineKeyboardMarkup(inline_keyboard=[
        [InlineKeyboardButton(text="Клиенты Wi-Fi", callback_data="clients")]
    ])
    await msg.answer("Добро пожаловать!", reply_markup=kb)

@dp.callback_query(lambda c: c.data == "clients")
async def show_clients(callback: types.CallbackQuery):
    if callback.from_user.id not in ALLOWED_USER_IDS:
        await callback.answer("⛔️ Нет доступа", show_alert=True)
        return
    try:
        print("[DEBUG] Подключаюсь к MikroTik API...")
        api = get_mt_api()
        print("[DEBUG] Получаю список клиентов через /interface/wifi/registration-table...")
        
        # Правильный путь для RouterOS 7.x
        clients = list(api.path('interface', 'wifi', 'registration-table'))
                
        print(f"[DEBUG] Найдено клиентов: {len(clients)}")
        if not clients:
            await callback.message.answer("Нет подключённых клиентов Wi-Fi.")
            return
            
        text = "<b>Wi-Fi клиенты:</b>\n"
        for i, c in enumerate(clients):
            print(f"[DEBUG] Обрабатываю клиента {i}: type={type(c)}")
            # Конвертируем Path объект в словарь
            client_data = dict(c)
            print(f"[DEBUG] Данные клиента: {client_data}")
            
            # Используем правильные поля из RouterOS 7.x
            mac = client_data.get('mac-address', '-')
            interface = client_data.get('interface', '-')
            ssid = client_data.get('ssid', '-')
            uptime = client_data.get('uptime', '-')
            signal = client_data.get('signal', '-')
            band = client_data.get('band', '-')
            
            text += f"\n<b>MAC:</b> {mac}\n"
            text += f"<b>Интерфейс:</b> {interface}\n"
            text += f"<b>SSID:</b> {ssid}\n"
            text += f"<b>Uptime:</b> {uptime}\n"
            text += f"<b>Сигнал:</b> {signal} | <b>Диапазон:</b> {band}\n"
            
        print("[DEBUG] Отправляю сообщение...")
        await callback.message.answer(text, parse_mode="HTML")
    except TrapError as e:
        print(f"[ERROR] TrapError: {e}")
        await callback.message.answer(f"Ошибка API MikroTik: {e}")
    except Exception as e:
        print(f"[ERROR] Exception: {e}")
        print(f"[ERROR] Exception type: {type(e)}")
        import traceback
        traceback.print_exc()
        await callback.message.answer(f"Ошибка: {e}")

# --- FastAPI для fetch-уведомлений ---
app = FastAPI()

@app.get("/health")
async def health():
    return {"status": "ok", "service": "mikrotik-telegram-bot"}

@app.get("/event")
async def event(request: Request):
    mac = request.query_params.get('mac')
    ip = request.query_params.get('ip')
    event_type = request.query_params.get('type')
    # Можно добавить секрет для безопасности:
    # if request.query_params.get('secret') != os.getenv('MT_SECRET'): return 'forbidden'
    text = f"MikroTik: событие {event_type}\nMAC: {mac}\nIP: {ip}"
    # Сохраняем клиента и сессию (fetch)
    await upsert_client(mac, name=None)
    await start_session(mac, ip, source='fetch')
    for uid in ALLOWED_USER_IDS:
        await bot.send_message(uid, text)
    return {"status": "ok"}

# --- Периодический polling MikroTik API для сбора статистики ---
async def poll_mikrotik():
    known_clients = {}
    while True:
        try:
            api = get_mt_api()
            # Используем правильный путь для RouterOS 7.x
            clients = list(api.path('interface', 'wifi', 'registration-table'))
            current_macs = set()
            for c in clients:
                # Конвертируем Path объект в словарь
                client_data = dict(c)
                mac = client_data.get('mac-address')
                # В RouterOS 7.x WiFi нет поля last-ip, используем другие поля
                ip = client_data.get('last-ip', 'N/A')  # возможно нет этого поля
                name = client_data.get('host-name') or client_data.get('comment')
                # В WiFi registration-table нет rx-bytes/tx-bytes, используем 0
                rx = 0
                tx = 0
                await upsert_client(mac, name=name)
                await start_session(mac, ip, rx, tx, source='api')
                await update_session(mac, rx, tx)
                current_macs.add(mac)
            # Закрываем сессии для клиентов, которых больше нет
            for mac in list(known_clients):
                if mac not in current_macs:
                    await close_session(mac)
                    known_clients.pop(mac)
            known_clients = {mac: True for mac in current_macs}
        except Exception as e:
            print(f"[poll_mikrotik] Ошибка: {e}")
        await asyncio.sleep(30)  # интервал опроса

# --- Одновременный запуск бота, FastAPI и polling ---
async def main():
    await init_db()
    bot_task = asyncio.create_task(dp.start_polling(bot))
    config = uvicorn.Config(app, host="0.0.0.0", port=8000, log_level="info")
    server = uvicorn.Server(config)
    api_task = asyncio.create_task(server.serve())
    poll_task = asyncio.create_task(poll_mikrotik())
    await asyncio.gather(bot_task, api_task, poll_task)

# --- Команда /history с постраничностью ---
@dp.message(Command("history"))
async def history_cmd(msg: types.Message):
    if not await check_user(msg):
        return
    await send_history_page(msg, period_days=30, page=1)

@dp.callback_query(lambda c: c.data.startswith("history_"))
async def history_period(callback: types.CallbackQuery):
    if callback.from_user.id not in ALLOWED_USER_IDS:
        await callback.answer("⛔️ Нет доступа", show_alert=True)
        return
    parts = callback.data.split("_")
    days = int(parts[1])
    page = int(parts[2]) if len(parts) > 2 else 1
    await send_history_page(callback.message, period_days=days, page=page, edit=True, callback=callback)

async def send_history_page(message, period_days, page, edit=False, callback=None):
    page_size = 10
    rows, total = await get_history(period_days=period_days, page=page, page_size=page_size)
    max_page = max(1, (total + page_size - 1) // page_size)
    text = f"<b>История подключений за {period_days} дн. (стр. {page}/{max_page}):</b>\n"
    if not rows:
        text += "Нет подключений за выбранный период."
    else:
        for row in rows:
            mac = row[1]
            ip = row[2]
            start = row[3]
            end = row[4] or "..."
            rx = row[5] or 0
            tx = row[6] or 0
            name = row[-2] or row[-1] or mac
            text += f"\n<b>{name}</b> ({mac})\nIP: {ip}\nВремя: {start} — {end}\nRX: {rx//1024} KB, TX: {tx//1024} KB\n"
    # Кнопки: Назад, Обновить, Вперёд (одна строка)
    buttons = []
    if page > 1:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data=f"history_{period_days}_{page-1}"))
    else:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data="noop", disabled=True))
    buttons.append(InlineKeyboardButton("Обновить", callback_data=f"history_{period_days}_{page}"))
    if page < max_page:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data=f"history_{period_days}_{page+1}"))
    else:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data="noop", disabled=True))
    kb = InlineKeyboardMarkup(inline_keyboard=[buttons])
    if edit and callback:
        await callback.message.edit_text(text, parse_mode="HTML", reply_markup=kb)
        await callback.answer()
    else:
        await message.answer(text, parse_mode="HTML", reply_markup=kb)

# --- Команда /clients с постраничностью ---
@dp.message(Command("clients"))
async def clients_cmd(msg: types.Message):
    if not await check_user(msg):
        return
    await send_clients_page(msg, page=1)

@dp.callback_query(lambda c: c.data.startswith("clients_"))
async def clients_page_cb(callback: types.CallbackQuery):
    if callback.from_user.id not in ALLOWED_USER_IDS:
        await callback.answer("⛔️ Нет доступа", show_alert=True)
        return
    parts = callback.data.split("_")
    page = int(parts[1]) if len(parts) > 1 else 1
    await send_clients_page(callback.message, page=page, edit=True, callback=callback)

async def send_clients_page(message, page, edit=False, callback=None):
    page_size = 10
    rows, total = await get_clients(page=page, page_size=page_size)
    max_page = max(1, (total + page_size - 1) // page_size)
    text = f"<b>Устройства (стр. {page}/{max_page}):</b>\n"
    if not rows:
        text += "Нет известных клиентов."
    else:
        for row in rows:
            mac = row[0]
            name = row[1] or mac
            custom = row[2]
            last_seen = row[3]
            text += f"\n<b>{custom or name}</b> ({mac})\nПоследняя активность: {last_seen}\n"
    # Кнопки: Назад, Обновить, Вперёд (одна строка)
    buttons = []
    if page > 1:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data=f"clients_{page-1}"))
    else:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data="noop", disabled=True))
    buttons.append(InlineKeyboardButton("Обновить", callback_data=f"clients_{page}"))
    if page < max_page:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data=f"clients_{page+1}"))
    else:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data="noop", disabled=True))
    kb = InlineKeyboardMarkup(inline_keyboard=[buttons])
    if edit and callback:
        await callback.message.edit_text(text, parse_mode="HTML", reply_markup=kb)
        await callback.answer()
    else:
        await message.answer(text, parse_mode="HTML", reply_markup=kb)

# --- Обработчик для неактивных кнопок ---
@dp.callback_query(lambda c: c.data == "noop")
async def noop_callback(callback: types.CallbackQuery):
    await callback.answer()

# --- Команда /stats с постраничностью ---
@dp.message(Command("stats"))
async def stats_cmd(msg: types.Message):
    if not await check_user(msg):
        return
    await send_stats_page(msg, period_days=30, page=1)

@dp.callback_query(lambda c: c.data.startswith("stats_"))
async def stats_period(callback: types.CallbackQuery):
    if callback.from_user.id not in ALLOWED_USER_IDS:
        await callback.answer("⛔️ Нет доступа", show_alert=True)
        return
    parts = callback.data.split("_")
    days = int(parts[1])
    page = int(parts[2]) if len(parts) > 2 else 1
    await send_stats_page(callback.message, period_days=days, page=page, edit=True, callback=callback)

async def send_stats_page(message, period_days, page, edit=False, callback=None):
    page_size = 10
    rows, total = await get_stats(period_days=period_days, page=page, page_size=page_size)
    max_page = max(1, (total + page_size - 1) // page_size)
    text = f"<b>Топ по трафику за {period_days} дн. (стр. {page}/{max_page}):</b>\n"
    if not rows:
        text += "Нет данных за выбранный период."
    else:
        for row in rows:
            mac = row[0]
            name = row[1] or row[2] or mac
            rx = row[3] or 0
            tx = row[4] or 0
            count = row[5]
            text += f"\n<b>{name}</b> ({mac})\nСессий: {count}\nRX: {rx//1024} KB, TX: {tx//1024} KB, Всего: {(rx+tx)//1024} KB\n"
    # Кнопки: Назад, Обновить, Вперёд (одна строка)
    buttons = []
    if page > 1:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data=f"stats_{period_days}_{page-1}"))
    else:
        buttons.append(InlineKeyboardButton("⏪ Назад", callback_data="noop", disabled=True))
    buttons.append(InlineKeyboardButton("Обновить", callback_data=f"stats_{period_days}_{page}"))
    if page < max_page:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data=f"stats_{period_days}_{page+1}"))
    else:
        buttons.append(InlineKeyboardButton("Вперёд ⏩", callback_data="noop", disabled=True))
    kb = InlineKeyboardMarkup(inline_keyboard=[buttons])
    if edit and callback:
        await callback.message.edit_text(text, parse_mode="HTML", reply_markup=kb)
        await callback.answer()
    else:
        await message.answer(text, parse_mode="HTML", reply_markup=kb)

if __name__ == "__main__":
    asyncio.run(main())