FROM node:22-slim AS build

WORKDIR /app

COPY package*.json ./
RUN npm ci

COPY tsconfig.json ./
COPY src ./src
RUN npm run build
RUN npm prune --omit=dev

FROM node:22-slim AS runtime

WORKDIR /app
ENV NODE_ENV=production

RUN apt-get update \
  && apt-get install -y --no-install-recommends python3 \
  && rm -rf /var/lib/apt/lists/*

COPY package*.json ./
COPY --from=build /app/node_modules ./node_modules
COPY --from=build /app/dist ./dist
COPY scripts ./scripts

EXPOSE 8001

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "const net=require('node:net'); const s=net.createConnection({host:'127.0.0.1',port:process.env.PORT||8001},()=>{s.end();process.exit(0)}); s.setTimeout(2000,()=>process.exit(1)); s.on('error',()=>process.exit(1));"

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