FROM node:22-bookworm-slim

WORKDIR /app

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

COPY package.json package-lock.json* ./
RUN npm install

# We only need the socket server and dependencies
COPY socket-server.ts ./
COPY tsconfig.json ./

# Environment defaults
ENV NODE_ENV=production
ENV SOCKET_PORT=3002
ENV SOCKET_HTTP_PORT=3003

# Run with tsx (included in devDependencies but we need it at runtime here)
# Alternatively, we could build it to JS, but tsx is easier for this standalone file.
CMD ["npx", "tsx", "socket-server.ts"]