# Native linux/arm64 Android build toolchain for CI.
# Builds release artifacts only — no emulator, no test/system images.
# eclipse-temurin publishes a native linux/arm64 manifest, so this runs
# without emulation on an OCI Ampere (aarch64) runner.
FROM eclipse-temurin:21-jdk-noble

# --- Version pins (bump deliberately; this is what your app repos trust) ---
# cmdline-tools: find the current build number at
#   https://developer.android.com/studio#command-line-tools-only
ARG CMDLINE_TOOLS_VERSION=13114758
ARG BUILD_TOOLS_VERSION=35.0.0
ARG PLATFORM_VERSION=android-35

ENV ANDROID_SDK_ROOT=/opt/android-sdk \
    ANDROID_HOME=/opt/android-sdk \
    DEBIAN_FRONTEND=noninteractive

# git is needed by some Gradle plugins; unzip/curl for SDK install.
RUN apt-get update && apt-get install -y --no-install-recommends \
        curl unzip git ca-certificates && \
    rm -rf /var/lib/apt/lists/*

# Install the command-line tools into the canonical "latest" location.
RUN mkdir -p ${ANDROID_SDK_ROOT}/cmdline-tools && \
    curl -fsSL -o /tmp/tools.zip \
      "https://dl.google.com/android/repository/commandlinetools-linux-${CMDLINE_TOOLS_VERSION}_latest.zip" && \
    unzip -q /tmp/tools.zip -d ${ANDROID_SDK_ROOT}/cmdline-tools && \
    mv ${ANDROID_SDK_ROOT}/cmdline-tools/cmdline-tools ${ANDROID_SDK_ROOT}/cmdline-tools/latest && \
    rm /tmp/tools.zip

ENV PATH=${PATH}:${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin:${ANDROID_SDK_ROOT}/platform-tools

# Accept licenses and bake the SDK packages into the image so prod builds
# don't depend on Google's endpoint at job time.
# aapt2 and the build-tools binaries ship native arm64 for 35.x, so APK/AAB
# packaging runs natively on aarch64.
RUN yes | sdkmanager --licenses >/dev/null && \
    sdkmanager --install \
      "platform-tools" \
      "platforms;${PLATFORM_VERSION}" \
      "build-tools;${BUILD_TOOLS_VERSION}" && \
    rm -rf ${ANDROID_SDK_ROOT}/.android

# Sanity: fail the image build if the toolchain isn't actually usable.
RUN java -version && sdkmanager --version && \
    test -d "${ANDROID_SDK_ROOT}/platforms/${PLATFORM_VERSION}"

WORKDIR /workspace