FROM rust:1.78-slim 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 ca-certificates && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=builder /app/target/release/sim-engine .
ENV DB_PATH=/data/sim.db
ENV PORT=3000
VOLUME ["/data"]
EXPOSE 3000
CMD ["./sim-engine"]