# Build stage
FROM node:18-alpine AS builder

WORKDIR /app

# Install build dependencies
RUN apk add --no-cache python3 make g++

# Copy package files
COPY package*.json ./

# Install all dependencies (including dev)
RUN npm ci

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Prune dev dependencies
RUN npm prune --production

# Production stage
FROM node:18-alpine AS production

# Install ffmpeg for video processing
RUN apk add --no-cache ffmpeg

WORKDIR /app

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

# Copy built application from builder
COPY --from=builder --chown=nestjs:nodejs /app/dist ./dist
COPY --from=builder --chown=nestjs:nodejs /app/node_modules ./node_modules
COPY --from=builder --chown=nestjs:nodejs /app/package.json ./package.json

# Set environment variables
ENV NODE_ENV=production
ENV PORT=3142

# Switch to non-root user
USER nestjs

# Expose port
EXPOSE 3142

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:3142/api/v1/health || exit 1

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