import os
import uvicorn
import subprocess
import sys
from fastapi import FastAPI, Request
from pydantic import BaseModel
from typing import List, Optional
from datetime import datetime
from contextlib import asynccontextmanager

from modules.config import Config
from modules.services.ollama import OllamaManager
from modules.services.kis import KISClient
from modules.services.news import NewsCollector
from modules.services.telegram import TelegramMessenger

# 전역 객체
bot_process = None
telegram_process = None
messenger = TelegramMessenger()
ai_agent = None
kis_client = None
news_collector = None

import multiprocessing
from modules.bot import AutoTradingBot
from modules.utils.process_tracker import ProcessTracker
from modules.services.telegram_bot.runner import run_telegram_bot_standalone

# 봇 실행 래퍼 함수
def run_trading_bot():
    ProcessTracker.register("Trading Bot Main")
    bot = AutoTradingBot()
    bot.loop()

@asynccontextmanager
async def lifespan(app: FastAPI):
    # [Startup]
    global bot_process, telegram_process, messenger, ai_agent, kis_client, news_collector
    
    # 1. 설정 검증
    Config.validate()
    
    # 2. 전역 객체 초기화 (서버용)
    # [Process Tracker] 초기화
    try:
        ProcessTracker.clear()
        ProcessTracker.register("Main Server (Uvicorn Worker)")
    except: pass

    ai_agent = OllamaManager()
    kis_client = KISClient()
    news_collector = NewsCollector()

    print("🤖 Starting AI Trading Bot & Telegram Bot (Multimedia Mode)...")
    
    # 3. 멀티프로세스 실행
    # (1) 트레이딩 봇
    bot_process = multiprocessing.Process(target=run_trading_bot)
    bot_process.start()
    
    # (2) 텔레그램 봇 (Polling)
    telegram_process = multiprocessing.Process(target=run_telegram_bot_standalone)
    telegram_process.start()
    
    # [Process Tracker] 자식 프로세스 PID 기록 (부모 관점)
    try:
        with open(ProcessTracker.FILE_PATH, "a", encoding="utf-8") as f:
            f.write(f"{bot_process.pid}: Trading Bot Process (Parent View)\n")
            f.write(f"{telegram_process.pid}: Telegram Bot Process (Parent View)\n")
    except: pass
    
    messenger.send_message("🖥️ **[Server Started]** Windows AI Server (Refactored) Online.")
    
    yield
    
    # [Shutdown]
    print("🛑 Shutting down processes...")
    
    if telegram_process and telegram_process.is_alive():
        print("   - Stopping Telegram Bot...")
        telegram_process.join(timeout=5)
        if telegram_process.is_alive():
            telegram_process.terminate()
            telegram_process.join()

    if bot_process and bot_process.is_alive():
        print("   - Stopping Trading Bot...")
        bot_process.join(timeout=5)
        if bot_process.is_alive():
            bot_process.terminate()
            bot_process.join()
        
    messenger.send_message("🛑 **[Server Stopped]** Server Shutting Down.")

app = FastAPI(title="Windows AI Stock Server", lifespan=lifespan)

@app.middleware("http")
async def log_requests(request: Request, call_next):
    print(f"📥 {request.method} {request.url}")
    response = await call_next(request)
    return response

# 모델 정의
class ManualOrderRequest(BaseModel):
    ticker: str
    action: str  # BUY, SELL
    quantity: int

@app.get("/")
def index():
    vram = 0
    if ai_agent:
        vram = ai_agent.check_vram()
    return {
        "status": "online",
        "gpu_vram": round(vram, 2),
        "service": "Windows AI Server (Refactored)"
    }

@app.get("/trade/balance")
@app.get("/api/trade/balance")
async def get_balance():
    if not kis_client:
        return {"error": "Server not initialized"}
    return kis_client.get_balance()

@app.post("/trade/order")
@app.post("/api/trade/order")
async def manual_order(req: ManualOrderRequest):
    ticker = req.ticker
    qty = req.quantity
    action = req.action.upper()
    
    result = "No Action"
    if action == "BUY":
        result = kis_client.buy_stock(ticker, qty)
    elif action == "SELL":
        result = kis_client.sell_stock(ticker, qty)
        
    return {"status": "executed", "kis_result": result}

@app.post("/analyze/portfolio")
@app.post("/api/analyze/portfolio")
async def analyze_portfolio():
    # 간단화된 분석 로직
    balance = kis_client.get_balance()
    news = news_collector.get_market_news()
    
    prompt = f"""
    Analyze this portfolio with recent news:
    Portfolio: {balance}
    News: {news}
    Response in Korean.
    """
    analysis = ai_agent.request_inference(prompt)
    return {"analysis": analysis}

if __name__ == "__main__":
    # [안정성] 서버 시작 시 이전 좀비 프로세스 정리
    try:
        from modules.utils.process_tracker import ProcessTracker
        ProcessTracker.check_and_kill_zombies()
    except: pass
    
    # Reload=True는 멀티프로세싱 자식 프로세스 관리에 취약하므로 비활성화 권장
    print("🚀 Starting Windows AI Server...")
    uvicorn.run("main_server:app", host="0.0.0.0", port=8000, reload=False)