"""Telegram message utilities."""

import asyncio
import logging
import os
from typing import Optional

from aiogram import Bot
from aiogram.types import FSInputFile

logger = logging.getLogger(__name__)


async def send_message_safe(
    bot: Optional[Bot],
    chat_id: Optional[int],
    text: str,
    **kwargs
):
    if not bot or not chat_id:
        return None
    try:
        return await bot.send_message(chat_id=chat_id, text=text, **kwargs)
    except Exception as e:
        logger.error(f"Failed to send message: {e}")
        return None


async def send_visit_result(
    bot: Optional[Bot],
    chat_id: int,
    visit_num: int,
    result: dict,
    delay: int,
    reading: int,
    successful: int,
    failed: int
) -> None:
    """
    Send visit result with optional screenshot.
    
    Args:
        bot: Bot instance
        chat_id: Target chat ID
        visit_num: Visit number
        result: Visit result dictionary
        delay: Next visit delay
        reading: Reading time
        successful: Count of successful visits
        failed: Count of failed visits
    """
    if not bot:
        return
    
    try:
        text = (
            f"{'✅' if result['success'] else '❌'} **Посещение {visit_num}**\n"
            f"🌐 `{result.get('final_url', 'N/A')[:60]}`\n"
            f"📖 Чтение: {reading}с | След. через: {delay}с\n"
            f"📊 Успешно: {successful} | Ошибок: {failed}"
        )
        
        screenshot_path = result.get('screenshot_path')
        if screenshot_path and await asyncio.to_thread(os.path.exists, screenshot_path):
            photo = FSInputFile(screenshot_path)
            await bot.send_photo(chat_id=chat_id, photo=photo, caption=text)
        else:
            await bot.send_message(chat_id=chat_id, text=text)
    
    except Exception as e:
        logger.error(f"Failed to send visit result: {e}")
        try:
            await bot.send_message(chat_id=chat_id, text=text)
        except Exception as e2:
            logger.warning(f"Fallback send failed: {e2}")