FROM node:18-alpine

# Install dependencies for Puppeteer
RUN apk add --no-cache \
    chromium \
    nss \
    freetype \
    harfbuzz \
    ca-certificates \
    ttf-freefont \
    wget

# Tell Puppeteer to skip installing Chrome. We'll use the installed package.
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
    PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser

# Create app directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy application files
COPY . .

# Create output directory for screenshots
RUN mkdir -p /var/www/html/images && \
    chown -R node:node /var/www/html/images

# Use non-root user
USER node

# Expose port
EXPOSE 5955

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:5955/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Start application
CMD ["node", "server.js"]