# --- Stage 1: Build ---
FROM node:20-slim AS builder

WORKDIR /app

COPY package*.json ./
RUN npm ci

COPY . .
RUN npm run build

# --- Stage 2: Production ---
FROM node:20-slim AS runtime

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

ENV CHROME_BIN=/usr/bin/chromium
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true

WORKDIR /app

RUN groupadd -r app && useradd -r -g app -d /app app

COPY --from=builder --chown=app:app /app/dist ./dist
COPY --from=builder --chown=app:app /app/node_modules ./node_modules
COPY --from=builder --chown=app:app /app/package.json ./

USER app

EXPOSE 5000

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD node -e "const h=require('http');h.get('http://localhost:5000/health',(r)=>{process.exit(r.statusCode===200?0:1)}).on('error',()=>process.exit(1))"

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