Dockerfile

# ── Build stage ──
FROM node:20-slim AS build
WORKDIR /app

# Install build dependencies
COPY package*.json ./
# Important: include dev dependencies so typescript is installed
RUN npm ci --include=dev

# Generate Prisma client
COPY prisma ./prisma
RUN npx prisma generate

# Build TypeScript
COPY tsconfig.json ./
COPY src ./src
RUN npm run build && npx tsc

# ── Production stage ──
FROM node:20-slim

# Install Chromium and OpenSSL for whatsapp-web.js and Prisma
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    chromium \
    ca-certificates \
    fonts-liberation \
    libnss3 \
    libatk-bridge2.0-0 \
    libx11-xcb1 \
    libxcomposite1 \
    libxrandr2 \
    libgbm1 \
    libasound2 \
    libpangocairo-1.0-0 \
    libgtk-3-0 \
    openssl \
    && rm -rf /var/lib/apt/lists/*

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

WORKDIR /app

# Copy production files
COPY --from=build /app/dist ./dist
COPY --from=build /app/node_modules ./node_modules
COPY --from=build /app/package.json ./
COPY --from=build /app/prisma ./prisma

EXPOSE 3000

# Default: run the API server
# Override with: `node dist/workers/start.js` for the background worker service
CMD ["node", "dist/index.js"]