# syntax=docker/dockerfile:1.4
# Smartbotic Package Builder
# Debian 13 (trixie) based build container for production binaries
#
# Usage (standard build - installs dependencies each time):
#   docker buildx build -f packaging/Dockerfile.build --target packages --output "type=local,dest=dist/" .
#
# Usage (fast build with pre-built base image):
#   # First build the base image once:
#   docker buildx build -f packaging/Dockerfile.base -t smartbotic-build-base:debian13 .
#   # Then use it for fast builds:
#   docker buildx build -f packaging/Dockerfile.build \
#     --build-arg BASE_IMAGE=smartbotic-build-base:debian13 \
#     --build-arg BUILD_VERSION=x.y.z \
#     --build-arg BUILD_GIT_COMMIT=$(git rev-parse HEAD) \
#     --build-arg BUILD_GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD) \
#     --target packages --output "type=local,dest=dist/" .
#
# Build caches are persistent across builds via BuildKit cache mounts:
#   - /ccache: C++ compiler cache (ccache)
#   - /npm-cache: npm package cache

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

ARG BUILD_VERSION=0.0.0
ARG BUILD_TARGET=debian13
ARG BUILD_JOBS=16
ARG BUILD_GIT_COMMIT=unknown
ARG BUILD_GIT_BRANCH=unknown
ENV DEBIAN_FRONTEND=noninteractive
ENV BUILD_VERSION=${BUILD_VERSION}
ENV BUILD_TARGET=${BUILD_TARGET}
ENV BUILD_JOBS=${BUILD_JOBS}
ENV BUILD_GIT_COMMIT=${BUILD_GIT_COMMIT}
ENV BUILD_GIT_BRANCH=${BUILD_GIT_BRANCH}

# ccache configuration
ENV CCACHE_DIR=/ccache
ENV CCACHE_MAXSIZE=5G
ENV CCACHE_COMPRESS=1
ENV CCACHE_COMPRESSLEVEL=6
ENV PATH="/usr/lib/ccache:${PATH}"

# Install build dependencies (skipped if using pre-built base image)
RUN if [ ! -f /etc/smartbotic-build-base ]; then \
    apt-get update && apt-get install -y --no-install-recommends \
    build-essential cmake ninja-build git pkg-config ca-certificates ccache \
    libcurl4-openssl-dev libssl-dev \
    nlohmann-json3-dev libspdlog-dev libsystemd-dev \
    protobuf-compiler libprotobuf-dev libgrpc++-dev protobuf-compiler-grpc \
    liblz4-dev nodejs npm \
    && rm -rf /var/lib/apt/lists/*; \
    else echo "Using pre-built base image: $(cat /etc/smartbotic-build-base)"; fi

WORKDIR /build

# Copy package files first for better layer caching
COPY webui/package.json webui/package-lock.json ./webui/

# Install npm dependencies with cache mount
RUN --mount=type=cache,target=/npm-cache,id=npm-cache \
    cd webui && npm ci --cache /npm-cache

# Copy WebUI source and build
COPY webui/ ./webui/
RUN cd webui && npm run build

# Copy C++ source code (excluding webui which is already copied)
COPY CMakeLists.txt ./
COPY cmake/ ./cmake/
COPY lib/ ./lib/
COPY src/ ./src/
COPY config/ ./config/
COPY packaging/ ./packaging/
COPY external/ ./external/

# Build all targets with ccache and Release optimizations
RUN --mount=type=cache,target=/ccache,id=ccache \
    cmake -B build -G Ninja \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_C_COMPILER_LAUNCHER=ccache \
    -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
    -DBUILD_TESTS=OFF \
    -DBUNDLE_DATABASE=ON \
    -DGIT_COMMIT_OVERRIDE=${BUILD_GIT_COMMIT} \
    -DGIT_BRANCH_OVERRIDE=${BUILD_GIT_BRANCH} \
    && cmake --build build --parallel ${BUILD_JOBS} \
    && ccache --show-stats || true

# Package creation stage
FROM builder AS packager

# Create package output directory
RUN mkdir -p /packages

# Run package creation script
RUN chmod +x /build/packaging/scripts/create-packages.sh && \
    /build/packaging/scripts/create-packages.sh

# Output stage - just the packages
FROM scratch AS packages
COPY --from=packager /packages/*.tar.gz /