# Stage 1: Build backend
FROM node:20-alpine AS backend-builder
WORKDIR /app/backend
COPY backend/package*.json ./
# Use inline NODE_ENV=development so devDeps (nest CLI) are installed
# but the global NODE_ENV stays production for the actual build
RUN NODE_ENV=development npm ci --legacy-peer-deps --include=dev
COPY backend/ .
RUN ./node_modules/.bin/nest build

# Stage 2: Build frontend
FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN NODE_ENV=development npm ci --legacy-peer-deps --include=dev
COPY frontend/ .
ENV NEXT_PUBLIC_API_URL=/api-backend
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production
RUN npm run build

# Stage 3: Runtime
FROM node:20-alpine AS runner
WORKDIR /app

# Install nginx
RUN apk add --no-cache nginx && mkdir -p /run/nginx

# Copy backend build
COPY --from=backend-builder /app/backend/dist ./backend/dist
COPY --from=backend-builder /app/backend/node_modules ./backend/node_modules
COPY --from=backend-builder /app/backend/package.json ./backend/

# Copy frontend build (standalone mode)
COPY --from=frontend-builder /app/frontend/.next/standalone ./frontend/
COPY --from=frontend-builder /app/frontend/.next/static ./frontend/.next/static
# public dir may be empty — copy if exists
COPY --from=frontend-builder /app/frontend/public/ ./frontend/public/

# Nginx config
COPY nginx.conf /etc/nginx/nginx.conf

# Start script
COPY start.sh .
RUN chmod +x start.sh

EXPOSE 80
CMD ["./start.sh"]