"""
FastAPI 后端服务主入口
"""
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from app.core.config import settings
from app.routers import fs


def create_app() -> FastAPI:
    """创建并配置 FastAPI 应用实例"""
    app = FastAPI(
        title="OpenCode Backend API",
        description="OpenCode 后端服务接口",
        version="1.0.0",
    )

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

    # 注册路由
    app.include_router(fs.router, prefix="/fs", tags=["文件系统"])

    return app


app = create_app()


@app.get("/")
async def root():
    """健康检查接口"""
    return {"status": "ok", "message": "OpenCode Backend API is running"}