FROM rust:1.87 AS builder

WORKDIR /app
COPY Cargo.toml Cargo.lock* ./
COPY src/ src/

RUN cargo build --release

FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    libssl3 ca-certificates \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /app/target/release/backend /usr/local/bin/backend

EXPOSE 3000

CMD ["backend"]