# 构建阶段
FROM node:20-alpine AS builder

WORKDIR /app

# 复制 package 文件
COPY package*.json ./
RUN npm ci

# 复制源码
COPY . .

# 设置构建参数并构建（默认使用相对路径，由 nginx 代理）
ARG VITE_PB_URL=
ENV VITE_PB_URL=$VITE_PB_URL

RUN npm run build

# 生产阶段
FROM nginx:alpine

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

# 通过 NGINX_CONF 参数选择配置文件（默认 dev）
ARG NGINX_CONF=nginx.conf
COPY ${NGINX_CONF} /etc/nginx/conf.d/default.conf

EXPOSE 80

CMD ["nginx", "-g", "daemon off;"]