FROM node:20-slim

# Chromium deps for whatsapp-web.js (puppeteer)
RUN apt-get update && apt-get install -y --no-install-recommends \
    chromium ca-certificates fonts-liberation libasound2 libatk-bridge2.0-0 \
    libatk1.0-0 libcups2 libdbus-1-3 libdrm2 libgbm1 libgtk-3-0 libnspr4 \
    libnss3 libx11-xcb1 libxcomposite1 libxdamage1 libxrandr2 xdg-utils \
    wget xauth && rm -rf /var/lib/apt/lists/*

ENV PUPPETEER_SKIP_DOWNLOAD=true
ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium
ENV NODE_ENV=production

WORKDIR /app
COPY package.json ./
RUN npm install --omit=dev
COPY server.js rules.json entrypoint.sh ./
RUN chmod +x entrypoint.sh

EXPOSE 8080
ENTRYPOINT ["./entrypoint.sh"]