name: Build OpenJDK 22 for Android ARM64

on:
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-22.04
    steps:
      # 1. Checkout source
      - name: Checkout JDK 22 source
        uses: actions/checkout@v4
        with:
          repository: openjdk/jdk22
          ref: jdk-22-ga
          path: jdk22

      # 2. Install dependencies
      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y build-essential autoconf make zip unzip \
            clang gcc g++ git libasound2-dev libcups2-dev libx11-dev libxext-dev \
            libxrender-dev libxrandr-dev libxtst-dev libxt-dev libfontconfig1-dev \
            libfreetype6-dev libpng-dev libffi-dev \
            libtool-bin pkg-config libxkbcommon-x11-dev libasound2-dev libpulse-dev \
            libgl-dev libglu1-mesa-dev libgif-dev libjpeg-dev libxinerama-dev \
            libxcomposite-dev libncurses-dev zlib1g-dev libc6-dev wget unzip

      # 3. Download Android NDK r26d
      - name: Download Android NDK r26d
        run: |
          wget https://dl.google.com/android/repository/android-ndk-r26d-linux.zip
          unzip -q android-ndk-r26d-linux.zip
          mv android-ndk-r26d $HOME/android-ndk

      # 4. Configure JDK for Android ARM64
      - name: Configure JDK for Android ARM64
        working-directory: jdk22
        run: |
          SYSROOT=$HOME/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/sysroot
          TOOLCHAIN=$HOME/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin
          API_LEVEL=21

          # Cross-compile compiler for target (Android ARM64)
          export CC=$TOOLCHAIN/aarch64-linux-android$API_LEVEL-clang
          export CXX=$TOOLCHAIN/aarch64-linux-android$API_LEVEL-clang++
          export CPP=$CC

          # BuildC sanity check compiler (host x86_64)
          export BUILD_CC=/usr/bin/clang
          export BUILD_CXX=/usr/bin/clang++

          # Run configure
          bash configure \
            --openjdk-target=aarch64-linux-android$API_LEVEL \
            --with-boot-jdk=$JAVA_HOME_21_X64 \
            --with-toolchain-type=clang \
            --with-toolchain-path=$TOOLCHAIN \
            --with-build-tools-dir=/usr/bin \
            --with-extra-cflags="--sysroot=$SYSROOT" \
            --with-extra-cxxflags="--sysroot=$SYSROOT" \
            --with-extra-ldflags="--sysroot=$SYSROOT" \
            --with-jvm-variants=server \
            --disable-warnings-as-errors

      # 5. Build JDK
      - name: Build JDK
        working-directory: jdk22
        run: make images JOBS=2

      # 6. Upload artifact
      - name: Upload built JDK
        uses: actions/upload-artifact@v4
        with:
          name: openjdk22-android-arm64
          path: jdk22/build/linux-aarch64-server-release/images/jdk