# Stage 1: Build client
FROM node:20-alpine AS client-build
WORKDIR /app/client
COPY client/package.json ./
RUN npm install
COPY client/ ./
RUN npm run build

# Stage 2: Build server
FROM node:20-alpine AS server-build
WORKDIR /app/server
COPY server/package.json ./
RUN npm install
COPY server/ ./
RUN npm run build

# Stage 3: Production
FROM node:20-alpine AS production
RUN apk add --no-cache tini curl

WORKDIR /app

# Create non-root user
RUN addgroup -g 1001 -S appgroup && \
    adduser -S appuser -u 1001 -G appgroup

# Copy server production dependencies
COPY server/package.json ./
RUN npm install --omit=dev && npm cache clean --force

# Copy server build output
COPY --from=server-build /app/server/dist ./dist

# Copy client build output to be served as static files
COPY --from=client-build /app/client/dist ./public

# Create data directory for uploads
RUN mkdir -p /data/uploads && chown -R appuser:appgroup /data/uploads

# Switch to non-root user
USER appuser

EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD curl -f http://localhost:3000/api/health || exit 1

ENTRYPOINT ["/sbin/tini", "--"]
CMD ["node", "dist/index.js"]