"""
文献启明星 API 服务器
FastAPI应用程序入口
"""

import logging
import uvicorn
from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from pathlib import Path
import json
import sys
import os

# 添加项目根目录到Python路径
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from backend.api.research import router as research_router
from backend.config import CORS_ORIGINS, BASE_DIR

# 配置日志
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    handlers=[
        logging.StreamHandler(),
        logging.FileHandler(Path(BASE_DIR) / "lightstar_api.log")
    ]
)

logger = logging.getLogger(__name__)

# 创建FastAPI应用
app = FastAPI(
    title="LightStar API",
    description="文献启明星 - 科研调研智能体API服务",
    version="0.1.0",
)

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

# 注册路由
app.include_router(research_router)

# 健康检查端点
@app.get("/health")
async def health_check():
    return {"status": "healthy", "version": "0.1.0"}

# API信息端点
@app.get("/")
async def root():
    return {
        "name": "LightStar API",
        "description": "文献启明星 - 科研调研智能体API服务",
        "version": "0.1.0",
        "endpoints": [
            "/api/research/process",
            "/api/research/extract-keywords",
            "/api/research/search-papers",
            "/api/research/cluster-papers",
            "/api/research/generate-report"
        ]
    }

# 启动服务器
if __name__ == "__main__":
    logger.info("Starting LightStar API server")
    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)