"""FastAPI 应用入口。

启动：cd backend && uv run uvicorn app.main:app --reload
"""

from __future__ import annotations

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from app.api.router import api_router
from app.core.config import get_settings

settings = get_settings()

app = FastAPI(
    title=settings.app_name,
    version=settings.app_version,
    description="A股个人量化研究平台 API（研究引擎 / Tushare 数据源）",
)

# 开发期允许本地前端跨域（Phase 3 前端 dev server；上线收紧为白名单）
app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:3000", "http://127.0.0.1:3000"],
    allow_credentials=False,
    allow_methods=["*"],
    allow_headers=["*"],
)

app.include_router(api_router, prefix=settings.api_prefix)