FROM node:20-alpine AS build
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY tsconfig.json ./
COPY src ./src
RUN npm run build

FROM node:20-alpine
WORKDIR /app
ENV NODE_ENV=production
COPY package*.json ./
RUN npm ci --omit=dev
COPY --from=build /app/dist ./dist

EXPOSE 5001

HEALTHCHECK --interval=15s --timeout=5s --start-period=20s --retries=5 \
  CMD node -e "require('http').get('http://localhost:'+(process.env.PORT||5001)+'/api/health', r => process.exit(r.statusCode===200?0:1)).on('error', () => process.exit(1))"

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