# 前端镜像：一次构建同时产出内网包与外网包
# 构建上下文 = frontend/ （见 frontend/.dockerignore）
# 站点根：/usr/share/nginx/inside（内网）、/usr/share/nginx/outside（外网）
# 由两套 nginx 容器各挂一份 conf 选择站点根，镜像只读共用
FROM node:20 AS build

WORKDIR /src
COPY package.json ./
RUN npm config set registry https://registry.npmmirror.com \
    && npm install --no-audit --no-fund

COPY . .

# .env.production.local 优先级高于 .env.production，用它固化两套包的差异：
#   VITE_API_URL=/api    —— 走同域 /api，由 nginx 反代时去掉前缀
#   VITE_IS_INSIDE       —— true 内网包 / false 外网包
RUN set -eux; \
    printf 'VITE_API_URL=/api\nVITE_IS_INSIDE=true\n'  > .env.production.local; \
    npx vite build --outDir dist/inside; \
    printf 'VITE_API_URL=/api\nVITE_IS_INSIDE=false\n' > .env.production.local; \
    npx vite build --outDir dist/outside

FROM nginx:alpine

COPY --from=build /src/dist/inside  /usr/share/nginx/inside
COPY --from=build /src/dist/outside /usr/share/nginx/outside

EXPOSE 80