# Development image. Built by docker-compose.dev.yml.
# Debug build; the dev compose mounts ./src:/app/src for rapid rebuilds.
FROM rust:latest AS builder

WORKDIR /app

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

# Cache dependency build via a dummy main.rs
COPY Cargo.toml ./
RUN mkdir src && echo 'fn main() {}' > src/main.rs
RUN cargo build && rm -rf src

# Copy actual source and build
COPY src ./src
RUN cargo build

# Runtime stage — full Rust image so the dev compose can rebuild in-container.
# curl is required for the compose HEALTHCHECK to work.
FROM rust:latest

RUN apt-get update && apt-get install -y \
    curl \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY --from=builder /app/target/debug/normogen-backend /app/normogen-backend

# The app listens on NORMOGEN_PORT (default 6500, set in compose/.env).
EXPOSE 6500

CMD ["/app/normogen-backend"]