FROM node:20-alpine

# Install dependencies for better-sqlite3 if needed later
RUN apk add --no-cache python3 make g++

# Create app directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies (npm install instead of ci for flexibility)
RUN npm install --omit=dev

# Copy application files
COPY . .

# Create necessary directories
RUN mkdir -p /app/cache/previews \
    && mkdir -p /app/output \
    && mkdir -p /app/fonts

# Expose port
EXPOSE 4000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:4000/health', (r) => process.exit(r.statusCode === 200 ? 0 : 1))"

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