FROM svrnty/base-distro:flutter-sdk-latest AS base

ARG FLUTTER_VERSION=3.38.9

LABEL org.opencontainers.image.title="flutter-sdk-linux"
LABEL org.opencontainers.image.description="Flutter SDK for Linux desktop CI builds"
LABEL org.opencontainers.image.version="${FLUTTER_VERSION}"

# --- Install Linux desktop build deps in debian ---
FROM debian:bookworm-slim AS deps-stage

RUN apt-get update && apt-get install -y --no-install-recommends \
    clang \
    cmake \
    ninja-build \
    pkg-config \
    libgtk-3-dev \
    liblzma-dev \
    libstdc++-12-dev \
    && rm -rf /var/lib/apt/lists/*

# --- Build final image ---
FROM base

USER 0

# Download Flutter SDK and strip unnecessary files in a single layer
RUN curl -fsSL "https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_${FLUTTER_VERSION}-stable.tar.xz" \
      -o /tmp/flutter.tar.xz && \
    tar xf /tmp/flutter.tar.xz -C /opt && \
    rm /tmp/flutter.tar.xz && \
    rm -rf /opt/flutter/dev \
           /opt/flutter/examples \
           /opt/flutter/bin/cache/artifacts/engine/android-* \
           /opt/flutter/bin/cache/flutter_web_sdk

RUN git config --global --add safe.directory /opt/flutter && \
    cd /opt/flutter && git gc --prune=all

# Remove symlinks that conflict with COPY from debian stage
RUN rm -f /usr/lib/terminfo

# Copy only specific toolchain binaries (not all of /usr/bin which would overwrite Wolfi's core utils)
COPY --from=deps-stage /usr/bin/cmake /usr/bin/cmake
COPY --from=deps-stage /usr/bin/ninja /usr/bin/ninja
COPY --from=deps-stage /usr/bin/pkg-config /usr/bin/pkg-config
COPY --from=deps-stage /usr/bin/clang-14 /usr/bin/clang-14
RUN ln -sf clang-14 /usr/bin/clang && ln -sf clang-14 /usr/bin/clang++

# Copy libraries from debian stage (specific subdirectories to avoid overwriting Wolfi's core libs)
COPY --from=deps-stage /usr/lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu
COPY --from=deps-stage /usr/lib/llvm-14 /usr/lib/llvm-14
COPY --from=deps-stage /usr/lib/cmake /usr/lib/cmake
COPY --from=deps-stage /usr/lib/gcc /usr/lib/gcc
COPY --from=deps-stage /usr/include /usr/include
COPY --from=deps-stage /usr/share/cmake-3.25 /usr/share/cmake-3.25
COPY --from=deps-stage /usr/share/pkgconfig /usr/share/pkgconfig
COPY --from=deps-stage /lib/x86_64-linux-gnu /lib/x86_64-linux-gnu

# Remove Debian's glibc/ld files that conflict with Wolfi's newer glibc,
# then register the Debian library paths and rebuild the linker cache
RUN rm -f /usr/lib/x86_64-linux-gnu/libc.so* /usr/lib/x86_64-linux-gnu/libm.so* \
         /usr/lib/x86_64-linux-gnu/libpthread* /usr/lib/x86_64-linux-gnu/libdl.so* \
         /usr/lib/x86_64-linux-gnu/librt.so* /usr/lib/x86_64-linux-gnu/libresolv* \
         /usr/lib/x86_64-linux-gnu/libmvec* /usr/lib/x86_64-linux-gnu/libnss_* \
         /usr/lib/x86_64-linux-gnu/ld-linux* /usr/lib/x86_64-linux-gnu/crt*.o \
         /usr/lib/x86_64-linux-gnu/libpcre2-8.so* \
         /lib/x86_64-linux-gnu/libc.so* /lib/x86_64-linux-gnu/libc-* \
         /lib/x86_64-linux-gnu/libm.so* /lib/x86_64-linux-gnu/libm-* \
         /lib/x86_64-linux-gnu/libpthread* /lib/x86_64-linux-gnu/libdl.so* \
         /lib/x86_64-linux-gnu/librt.so* /lib/x86_64-linux-gnu/libresolv* \
         /lib/x86_64-linux-gnu/libmvec* /lib/x86_64-linux-gnu/libnss_* \
         /lib/x86_64-linux-gnu/ld-linux* \
         /lib/x86_64-linux-gnu/libpcre2-8.so* && \
    echo "/usr/lib/x86_64-linux-gnu" > /etc/ld.so.conf.d/debian-x86_64.conf && \
    echo "/lib/x86_64-linux-gnu" >> /etc/ld.so.conf.d/debian-x86_64.conf && \
    ldconfig

# Fix ownership before switching to flutter user
RUN chown -R 65532:65532 /opt/flutter

USER 65532

# Configure Flutter for Linux desktop only
RUN flutter config --enable-linux-desktop \
    --no-enable-web \
    --no-enable-android \
    --no-enable-ios \
    --no-enable-macos-desktop \
    --no-enable-windows-desktop

# Precache only Linux artifacts
RUN flutter precache --linux \
    --no-web \
    --no-android \
    --no-ios \
    --no-macos \
    --no-windows \
    --no-fuchsia \
    --no-universal

RUN flutter doctor -v

WORKDIR /app