# Stage 1: Build the application
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./
COPY tsconfig.json ./

# Install dependencies
RUN npm ci

# Copy source files
COPY src/ ./src

# Build the application
RUN npm run build

# Stage 2: Create the production image
FROM node:20-alpine

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install only production dependencies
RUN npm ci --only=production

# Copy built files from builder stage
COPY --from=builder /app/dist ./dist

# Expose the port the app runs on
EXPOSE 3000

# Command to run the application
CMD ["node", "dist/index.js"]