# syntax=docker/dockerfile:1.4
# smartbotic-automation Package Builder
# Compiles the C++ binaries + WebUI bundle, then assembles a single .deb.
#
# Build:
#   docker buildx build -f packaging/Dockerfile.build \
#     --build-arg BASE_IMAGE=smartbotic-automation-build-base:debian13 \
#     --build-arg BUILD_VERSION=1.0.0 \
#     --target packages \
#     --output "type=local,dest=dist/debian13/" .

ARG BASE_IMAGE=debian:trixie
FROM ${BASE_IMAGE} AS builder

ARG BUILD_VERSION=0.0.0
ARG BUILD_DEB_REVISION=1
ARG BUILD_JOBS=8
ARG BUILD_GIT_COMMIT=unknown
ENV DEBIAN_FRONTEND=noninteractive
ENV BUILD_VERSION=${BUILD_VERSION}
ENV BUILD_DEB_REVISION=${BUILD_DEB_REVISION}
ENV BUILD_JOBS=${BUILD_JOBS}

ENV CCACHE_DIR=/ccache
ENV CCACHE_MAXSIZE=5G
ENV PATH="/usr/lib/ccache:${PATH}"

# Fall back to fresh dep install if the base image isn't our prebuilt one
RUN if [ ! -f /etc/smartbotic-automation-build-base ]; then \
        apt-get update && apt-get install -y --no-install-recommends \
            build-essential cmake ninja-build git pkg-config ccache dpkg-dev \
            libssl-dev zlib1g-dev libbrotli-dev uuid-dev \
            protobuf-compiler libprotobuf-dev libgrpc++-dev protobuf-compiler-grpc \
            nlohmann-json3-dev libspdlog-dev libfmt-dev libcurl4-openssl-dev libwebsockets-dev \
            nodejs npm libsmartbotic-db-client-dev \
        && rm -rf /var/lib/apt/lists/*; \
    else echo "Using pre-built base: $(cat /etc/smartbotic-automation-build-base)"; fi

WORKDIR /build

# WebUI build (cached separately from C++)
COPY webui/package.json webui/package-lock.json ./webui/
RUN --mount=type=cache,target=/npm-cache,id=smartbotic-automation-npm-cache \
    cd webui && npm ci --cache /npm-cache
COPY VERSION ./
COPY webui/ ./webui/
RUN cd webui && npm run build

# C++ build
COPY CMakeLists.txt ./
COPY cmake/ ./cmake/
COPY proto/ ./proto/
COPY lib/ ./lib/
COPY src/ ./src/
COPY config/ ./config/
COPY nodes/ ./nodes/
COPY packaging/ ./packaging/

RUN --mount=type=cache,target=/ccache,id=smartbotic-automation-ccache \
    cmake -B build -G Ninja \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_C_COMPILER_LAUNCHER=ccache \
        -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
    && cmake --build build --parallel ${BUILD_JOBS} \
    && (ccache --show-stats || true)

# ----- Package assembly stage -----
FROM builder AS packager
RUN mkdir -p /packages
RUN chmod +x /build/packaging/scripts/create-deb.sh \
    && OUTPUT_DIR=/packages /build/packaging/scripts/create-deb.sh

# ----- Final export stage -----
FROM scratch AS packages
COPY --from=packager /packages/*.deb /