# syntax=docker/dockerfile:1

# ---- build ----
FROM node:22-alpine AS build
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

# ---- runtime ----
FROM node:22-alpine AS runtime
WORKDIR /app
ENV NODE_ENV=production
COPY package*.json ./
RUN npm ci --omit=dev
COPY --from=build /app/dist ./dist
EXPOSE 3000
USER node

# Probe the /health route using Node's built-in fetch (no curl/wget needed).
HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 CMD node -e "fetch('http://localhost:'+(process.env.PORT||3000)+'/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"

CMD ["node", "dist/server.js"]
