name: get kernel version before cloning
description: get kernel version before cloning

runs:
  using: composite
  steps:
    - name: Locate and extract kernel version
      shell: bash
      run: |
        REPO="WildKernels/Samsung_Kernels"

        echo "Searching for kernel Makefile on branch $BRANCH"

        POSSIBLE_MAKEFILES=(
          "kernel_platform/common/Makefile"
          "kernel/Makefile"
          "kernel-6.6/Makefile"
          "kernel-6.1/Makefile"
          "kernel-5.10/Makefile"
          "Makefile"
        )

        MAKEFILE_PATH=""
        MAKEFILE_CONTENT=""

        for file in "${POSSIBLE_MAKEFILES[@]}"; do
          RAW_URL="https://raw.githubusercontent.com/$REPO/$BRANCH/$file"

          echo "Checking: $file"

          CONTENT=$(curl -fsSL "$RAW_URL" || true)

          if echo "$CONTENT" | grep -E '^VERSION[[:space:]]*=' >/dev/null; then
            MAKEFILE_PATH="$file"
            MAKEFILE_CONTENT="$CONTENT"
            break
          fi
        done

        if [ -z "$MAKEFILE_PATH" ]; then
          echo "::error::Could not find kernel Makefile"
          exit 1
        fi

        echo "Found kernel Makefile: $MAKEFILE_PATH"

        VERSION=$(echo "$MAKEFILE_CONTENT" | grep -E '^VERSION[[:space:]]*=' | awk '{print $3}' | head -n1)
        PATCHLEVEL=$(echo "$MAKEFILE_CONTENT" | grep -E '^PATCHLEVEL[[:space:]]*=' | awk '{print $3}' | head -n1)

        if [ -z "$VERSION" ] || [ -z "$PATCHLEVEL" ]; then
          echo "::error::Could not extract kernel version from $MAKEFILE_PATH"
          exit 1
        fi

        KERNEL_VERSION="$VERSION.$PATCHLEVEL"

        case "$KERNEL_VERSION" in
          5.10)
            ANDROID_VERSION="android12"
            ;;
          5.15)
            ANDROID_VERSION="android13"
            ;;
          6.1)
            ANDROID_VERSION="android14"
            ;;
          6.6)
            ANDROID_VERSION="android15"
            ;;
          *)
            ANDROID_VERSION="unknown"
            ;;
        esac

        echo "Android: $ANDROID_VERSION"
        echo "Kernel: $KERNEL_VERSION"

        echo "ANDROID_VER=$ANDROID_VERSION" >> "$GITHUB_ENV"
        echo "KERNEL_VER=$KERNEL_VERSION" >> "$GITHUB_ENV"