FROM node:18-alpine

# Create user with UID 1000 as recommended by Hugging Face Spaces
RUN adduser -D -u 1000 user || echo "User 1000 likely already exists, continuing..."

# Set up environment variables
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# Create and set up app directory with proper permissions
WORKDIR $HOME/app
RUN mkdir -p $HOME/app && \
    chown -R user:user $HOME/app && \
    chmod -R 755 $HOME/app # Set initial permissions

# Switch to the user
USER user

# Copy package files
COPY --chown=user viewer/package*.json ./

# Install dependencies
RUN npm install

# Copy the entire viewer directory
COPY --chown=user viewer/ .

# Build the application
RUN npm run build

# Expose port
EXPOSE 7860

# Start the application
CMD ["npm", "run", "preview", "--", "--port", "7860", "--host"]