FROM rust:1.94-slim AS builder

WORKDIR /app

RUN apt-get update && apt-get install -y \
    pkg-config \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

COPY Cargo.toml Cargo.lock ./
COPY apps/charging-engine ./apps/charging-engine

RUN cargo build --release --bin charging-engine

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/charging-engine .

EXPOSE 8080

CMD ["./charging-engine"]