# app/api/routes/uploads.py
from fastapi import APIRouter, UploadFile, File, HTTPException, Request
from uuid import uuid4
from pathlib import Path

router = APIRouter(tags=["uploads"])

# 保存目录：项目根目录下 static/uploads
UPLOAD_DIR = Path("static/uploads")
UPLOAD_DIR.mkdir(parents=True, exist_ok=True)


@router.post("/upload-image")
async def upload_image(
    request: Request,
    file: UploadFile = File(...),
):
    # 只允许图片
    if not file.content_type.startswith("image/"):
        raise HTTPException(status_code=400, detail="只支持图片上传")

    # 生成文件名
    ext = (file.filename or "").rsplit(".", 1)[-1].lower() or "png"
    name = f"{uuid4().hex}.{ext}"
    save_path = UPLOAD_DIR / name

    # 保存文件
    content = await file.read()
    save_path.write_bytes(content)

    # 拼出完整 URL，确保在 3000 端口页面里也能访问到 8000 的静态资源
    base = str(request.base_url).rstrip("/")  # e.g. "http://127.0.0.1:8000"
    url = f"{base}/static/uploads/{name}"

    return {"url": url}