# ─────────────────────────────────────────────────────────────
# Backend Server Dockerfile
# Multi-stage build for minimal production image
# ─────────────────────────────────────────────────────────────

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

WORKDIR /app

# Install dependencies
COPY package.json package-lock.json* pnpm-lock.yaml* ./
COPY prisma ./prisma/

RUN corepack enable pnpm && pnpm install --frozen-lockfile

# Generate Prisma client
RUN npx prisma generate

# Copy source and build
COPY tsconfig.json ./
COPY src ./src/

RUN pnpm build

# Stage 2: Production
FROM node:20-alpine AS runner

WORKDIR /app

# Install Docker CLI (for Docker-in-Docker execution)
RUN apk add --no-cache docker-cli

# Create non-root user
RUN addgroup --system --gid 1001 nodejs && \
    adduser --system --uid 1001 codesync

# Copy built output and dependencies
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/prisma ./prisma
COPY --from=builder /app/package.json ./

# Create logs directory
RUN mkdir -p /app/logs && chown codesync:nodejs /app/logs

USER codesync

EXPOSE 4000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:4000/api/health || exit 1

CMD ["node", "dist/index.js"]