ARG NODE_VERSION=20.17.0

FROM node:${NODE_VERSION}-alpine

WORKDIR /usr/src/app

# Create the attachments directory and set permissions
RUN mkdir -p attachments && chown -R node:node attachments

# Install dependencies
RUN --mount=type=bind,source=package.json,target=package.json \
    --mount=type=bind,source=package-lock.json,target=package-lock.json \
    --mount=type=cache,target=/root/.npm \
    npm ci --omit=dev

# Switch to the node user
USER node

# Copy the application code
COPY --chown=node:node . .

EXPOSE 3000

CMD node server.js