# HF Custom VNC - Dockerfile for Hugging Face Spaces
# Optimized for minimal size and fast startup

# Build stage
FROM node:18-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies (npm install for fresh projects without lock file)
RUN npm install

# Copy source code
COPY . .

# Build Next.js application
RUN npm run build

# Production stage
FROM node:18-alpine AS runner

WORKDIR /app

# Create non-root user
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Set environment variables
ENV NODE_ENV=production
ENV PORT=7860

# Copy standalone output
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public

# Copy startup script
COPY --from=builder /app/scripts/start-hf.sh /app/start-hf.sh
RUN chmod +x /app/start-hf.sh

# Install Xvfb and tools for virtual display
RUN apk add --no-cache \
    xvfb \
    xdotool \
    dbus \
    ttf-freefont \
    && rm -rf /var/cache/apk/*

# Set ownership
RUN chown -R nextjs:nodejs /app

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:7860/ || exit 1

# Start the application
CMD ["/app/start-hf.sh"]