from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from contextlib import asynccontextmanager
import uvicorn
from datetime import datetime

from app.api.endpoints import router
from app.core.config import settings
from app.core.database import close_mongo_connection, connect_to_mongo

@asynccontextmanager
async def lifespan(app: FastAPI):
    # 시작 시
    print("News API service starting...")
    await connect_to_mongo()
    yield
    # 종료 시
    print("News API service stopping...")
    await close_mongo_connection()

app = FastAPI(
    title="News API Service",
    description="Multi-language news articles API service",
    version="1.0.0",
    lifespan=lifespan
)

# CORS 설정
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# 라우터 등록
app.include_router(router, prefix="/api/v1")

@app.get("/")
async def root():
    return {
        "service": "News API Service",
        "version": "1.0.0",
        "timestamp": datetime.now().isoformat(),
        "supported_languages": ["ko", "en", "zh_cn", "zh_tw", "ja", "fr", "de", "es", "it"],
        "endpoints": {
            "articles": "/api/v1/{lang}/articles",
            "article_by_id": "/api/v1/{lang}/articles/{article_id}",
            "latest": "/api/v1/{lang}/articles/latest",
            "search": "/api/v1/{lang}/articles/search?q=keyword"
        }
    }

@app.get("/health")
async def health_check():
    return {
        "status": "healthy",
        "service": "news-api",
        "timestamp": datetime.now().isoformat()
    }

if __name__ == "__main__":
    uvicorn.run(
        "main:app",
        host="0.0.0.0",
        port=8000,
        reload=True
    )