# Use a stable, lightweight Node.js image
FROM node:18-alpine

# Set the working directory inside the container
WORKDIR /app

# Explicitly set the port environment variable that Hugging Face expects
ENV PORT=7860

# Copy package.json and package-lock.json first to leverage Docker's build cache
COPY package*.json ./

# Install only production dependencies to keep the image small
RUN npm install --production

# Copy the rest of your application code
COPY . .

# The command to run your application using the standard npm script
CMD ["npm", "start"]