FROM node:18-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install all dependencies (including dev deps for building)
RUN npm install

# Copy source code
COPY . .

# Build TypeScript
RUN npm run build

# Remove dev dependencies to reduce image size
RUN npm prune --production

# Create non-root user
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nodejs -u 1001

# Change ownership of the app directory
RUN chown -R nodejs:nodejs /app
USER nodejs

EXPOSE 3001

CMD ["npm", "start"]