import logging
import os
import sys
from typing import Any

from telegram import Update
from telegram.ext import Application, ApplicationBuilder, CommandHandler, ContextTypes
from dotenv import load_dotenv
from src.financial_news_requester import fetch_comp_financial_news
from fastapi import FastAPI, Request
import uvicorn
import asyncio


logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


load_dotenv()

TELEGRAM_TOKEN = os.getenv("TELEGRAM_TOKEN")
if not TELEGRAM_TOKEN:
    logger.error("TELEGRAM_TOKEN not found! Please add it in Space Settings > Repository secrets")
    raise ValueError("TELEGRAM_TOKEN not found in environment variables")
SPACE_ID = os.environ.get('SPACE_ID', 'ResearchEngineering/news_sentiment_analyzer')
PORT = int(os.environ.get('PORT', 7860))


def format_news_for_telegram(news_json: list[dict[str, Any]]) -> str:
    message = ""
    for item in news_json:
        message += (
            f"📰 <b>{item.get('headline')}</b>\n"
            f"📝 {item.get('summary')}\n"
            f"🏷️ Source: {item.get('source')}\n"
            f"🔗 <a href=\"{item.get('url')}\">Read more</a>\n\n"
        )
    return message


async def start(update: Update, context: ContextTypes.DEFAULT_TYPE):
    await update.message.reply_text("Hello! I'm your Financial Bot.")

async def help_command(update: Update, context: ContextTypes.DEFAULT_TYPE):
    """Handle /help command"""
    await update.message.reply_text("🤖 Available commands:\n/start - Start the bot\n/help - Show this help")

async def run_crew(update: Update, context: ContextTypes.DEFAULT_TYPE):
    await update.message.reply_text("Running ...")
    try:
        feed = fetch_comp_financial_news()
        logging.info(f"processed: {feed} news")
        await update.message.reply_text(f"Result:\n{format_news_for_telegram(feed)}", parse_mode='HTML')
    except Exception as e:
        await update.message.reply_text(f"Error: {e}")


app = FastAPI()


@app.post(f"/{TELEGRAM_TOKEN}")
async def webhook(request: Request):
    """Handle incoming webhook from Telegram"""
    try:
        # Get the update from Telegram
        json_data = await request.json()
        update = Update.de_json(json_data, application.bot)

        # Process the update
        await application.process_update(update)

        return {"status": "ok"}
    except Exception as e:
        logger.error(f"Error processing update: {e}")
        return {"status": "error", "message": str(e)}


@app.get("/")
async def root():
    """Health check endpoint"""
    return {"status": "Bot is running!", "webhook_url": f"https://{SPACE_ID}.hf.space/{TELEGRAM_TOKEN}"}


@app.get("/set_webhook")
async def set_webhook():
    """Manually set the webhook (call this once after deployment)"""
    try:
        webhook_url = f"https://{SPACE_ID}.hf.space/{TELEGRAM_TOKEN}"

        # Use a simple HTTP request to set webhook instead of bot.set_webhook()
        import httpx

        set_webhook_url = f"https://api.telegram.org/bot{TELEGRAM_TOKEN}/setWebhook"

        async with httpx.AsyncClient() as client:
            response = await client.post(set_webhook_url, json={"url": webhook_url})
            result = response.json()

        if result.get("ok"):
            return {"status": "success", "webhook_url": webhook_url, "result": result}
        else:
            return {"status": "error", "result": result}

    except Exception as e:
        logger.error(f"Error setting webhook: {e}")
        return {"status": "error", "message": str(e)}



def func():
    logging.basicConfig(level=logging.INFO)
    app = ApplicationBuilder().token(TELEGRAM_TOKEN).build()
    app.add_handler(CommandHandler("start", start))
    app.add_handler(CommandHandler("run", run_crew))
    app.run_polling()


def test_func():
    application = Application.builder().token(TELEGRAM_TOKEN).build()
    application.add_handler(CommandHandler("start", start))
    PORT = int(os.environ.get('PORT', 8000))

    # Run webhook (better for HF Spaces)
    application.run_webhook(
        listen="0.0.0.0",
        port=PORT,
        url_path=TELEGRAM_TOKEN,
        webhook_url=f"https://{os.environ.get('SPACE_ID', SPACE_ID)}.hf.space/{TELEGRAM_TOKEN}"
    )


if __name__ == "__main__":
    # Create telegram application WITHOUT initializing
    application = Application.builder().token(TELEGRAM_TOKEN).build()
    application.add_handler(CommandHandler("start", start))
    application.add_handler(CommandHandler("help", help_command))

    logger.info(f"Starting bot on port {PORT}")
    logger.info(f"Webhook URL will be: https://{SPACE_ID}.hf.space/{TELEGRAM_TOKEN}")
    logger.info("After deployment, visit /set_webhook to configure the webhook")

    uvicorn.run(app, host="0.0.0.0", port=PORT)