FROM node:20-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install ALL dependencies (including dev dependencies for build)
RUN npm ci --include=dev

# Copy source code
COPY . .

# Build TypeScript
RUN npm run build

# Verify dist was created
RUN ls -la dist/ || (echo "ERROR: dist not created!" && exit 1)

# Clean up dev dependencies to reduce image size (optional)
RUN npm prune --omit=dev

# Start the app
CMD ["npm", "start"]