# Stage 1: Build
FROM rust:latest AS builder

WORKDIR /app

# Copy manifests first for dependency caching
COPY Cargo.toml ./
RUN mkdir -p src && echo "fn main() {}" > src/main.rs

# Generate lockfile if missing, then build deps
RUN if [ ! -f Cargo.lock ]; then cargo generate-lockfile; fi
RUN cargo build --release 2>/dev/null || true
RUN rm -rf src

# Now build the real binary
COPY src/ src/
RUN cargo build --release

# Stage 2: Runtime
FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates libc6 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY --from=builder /app/target/release/app-lookup .
COPY static/ static/

EXPOSE 7860
ENV APP_HOST=0.0.0.0
ENV APP_PORT=7860
ENV APP_LOG_LEVEL=info
ENV APP_HTTP_TIMEOUT_SECS=15

CMD ["./app-lookup"]