FROM node:22-bookworm-slim AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci --omit=dev --no-audit --no-fund

FROM node:22-bookworm-slim
WORKDIR /app
ENV NODE_ENV=production
ARG GIT_BRANCH=unknown
ARG BUILD_TIME=unknown
ENV GIT_BRANCH=$GIT_BRANCH
ENV BUILD_TIME=$BUILD_TIME
COPY --from=deps /app/node_modules ./node_modules
COPY package.json ./
COPY src ./src
COPY public ./public
VOLUME ["/app/data"]
EXPOSE 3000
USER node
HEALTHCHECK --interval=30s --timeout=5s --start-period=15s \
  CMD node -e "fetch('http://localhost:3000/healthz').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
CMD ["node", "src/index.js"]