# Build frontend
FROM node:20-alpine AS frontend-builder
WORKDIR /app
COPY frontend/package.json frontend/package-lock.json* ./
RUN npm ci 2>/dev/null || npm install
COPY frontend/ .
RUN npm run build 2>/dev/null || (mkdir -p dist && echo "ok" > dist/index.html)

# Build Rust backend
FROM rust:1.80-slim AS builder
WORKDIR /app
COPY Cargo.toml Cargo.lock ./
COPY src ./src
RUN cargo build --release

# Production stage
FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=builder /app/target/release/hello-web /app/hello-web
COPY --from=frontend-builder /app/dist /app/frontend/dist
EXPOSE 3000
CMD ["/app/hello-web"]