# app/services/telegram_service.py

import aiohttp
from app.core.biz_exception import BizLogicError
from app.core.config import settings
from app.schemas.telegram import TelegramIn, TelegramNoTokenIn

class TelegramService:

    @staticmethod
    async def push_text(payload: TelegramIn):
        if not payload.api_token:
            raise BizLogicError("Telegram api_token missing")
        url = f"https://api.telegram.org/bot{payload.api_token}/sendMessage"

        body = {
            "chat_id": payload.chat_id,
            "text": payload.message,
            "parse_mode": "HTML",
        }

        timeout = aiohttp.ClientTimeout(total=10)
        async with aiohttp.ClientSession(timeout=timeout) as client:
            async with client.post(url, json=body) as resp:
                if resp.status != 200:
                    text = await resp.text()
                    raise BizLogicError(
                        f"Telegram push failed: {resp.status}, {text}"
                    )

    @staticmethod
    async def push_text_no_token(payload: TelegramNoTokenIn):
        api_token = settings.telegram_api_token
        if not api_token:
            raise BizLogicError("Telegram api_token missing in env")
        url = f"https://api.telegram.org/bot{api_token}/sendMessage"

        body = {
            "chat_id": payload.chat_id,
            "text": payload.message,
            "parse_mode": "HTML",
        }

        timeout = aiohttp.ClientTimeout(total=10)
        async with aiohttp.ClientSession(timeout=timeout) as client:
            async with client.post(url, json=body) as resp:
                if resp.status != 200:
                    text = await resp.text()
                    raise BizLogicError(
                        f"Telegram push failed: {resp.status}, {text}"
                    )