# Build stage
FROM node:20-alpine AS builder

WORKDIR /app

COPY package*.json ./
RUN npm ci

COPY tsconfig.json ./
COPY src ./src

RUN npm run build

# Production stage
FROM node:20-alpine AS production

WORKDIR /app

RUN apk add --no-cache ca-certificates

ENV NODE_ENV=production
ENV PORT=3000

COPY package*.json ./
RUN npm ci --only=production && npm cache clean --force

COPY --from=builder /app/dist ./dist

EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1

USER node

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