# Build stage
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

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

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM node:20-alpine

WORKDIR /app

# Install only production dependencies
COPY package*.json ./
RUN npm install --only=production && npm cache clean --force

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

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

# Change ownership
RUN chown -R nestjs:nodejs /app

# Switch to non-root user
USER nestjs

# Expose port
EXPOSE 4001

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
  CMD node -e "require('http').get('http://localhost:4001/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Start the application
CMD ["node", "dist/main"]