FROM node:20-slim

WORKDIR /app

# Copy package.json and package-lock.json
COPY package.json package-lock.json* ./

# Install dependencies
RUN npm ci

# Copy source code
COPY . .

# Expose the port
EXPOSE 7860

# Set environment variables (these can be overridden at runtime)
ENV PORT=7860
ENV TZ=Asia/Shanghai

# Start the application
CMD ["node", "index.js"]