# === 前端构建阶段 ===
# Tailwind v4 / Vite 6 需要 Node 20+，alpine + pnpm 会按 lockfile 拉 musl native binary。
FROM node:20-alpine AS builder

# pnpm pin 到 9.x：lockfile 是 v9 生成；pnpm 11 要求 Node 22+ 与 node:20 不兼容
RUN corepack enable && corepack prepare pnpm@9.15.0 --activate

WORKDIR /app

# 先复制 lockfile 利用依赖层缓存
COPY ./BillNote_frontend/package.json ./BillNote_frontend/pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile

# 再复制源代码并构建
COPY ./BillNote_frontend/ ./
RUN pnpm run build

# --- 阶段2：使用 nginx 作为静态服务器 ---
FROM nginx:1.25-alpine

RUN rm -rf /etc/nginx/conf.d/default.conf
COPY ./BillNote_frontend/deploy/default.conf /etc/nginx/conf.d/default.conf

# 拷贝构建产物
COPY --from=builder /app/dist /usr/share/nginx/html