name: Kernel Build Process
permissions:
  contents: write
  actions: write

on:
  workflow_call:
    inputs:
      version:
        required: true
        type: string
      android_version:
        required: true
        type: string
      kernel_version:
        required: true
        type: string
      sublevel:
        required: true
        type: string
      os_patch_level:
        required: true
        type: string
      variant:
        required: false
        type: string
      feature_set:
        required: true
        type: string
      use_repo:
        required: false
        type: boolean
      use_latest_commits:
        required: false
        type: boolean
        default: true

jobs:
  build-gki:
    name: "${{ inputs.kernel_version }}.${{ inputs.sublevel }}-${{ inputs.android_version }}-${{ inputs.os_patch_level }} (${{ inputs.variant }})"
    runs-on: ubuntu-latest
    timeout-minutes: 60

    steps:
    - name: Checkout Repository
      uses: actions/checkout@v5

    - name: 🧹 Emergency Disk Cleanup
      if: false
      uses: ./.github/actions/disk-cleanup

    - name: Free Disk Space
      if: true
      uses: endersonmenezes/free-disk-space@v3  # Use @main for latest, @v3 for stable
      with:
        remove_android: true
        remove_dotnet: true
        remove_haskell: true
        remove_tool_cache: true
        remove_packages: "azure-cli google-cloud-cli microsoft-edge-stable google-chrome-stable firefox postgresql* temurin-* *llvm* mysql* dotnet-sdk-*"
        remove_packages_one_command: true
        remove_folders: "/usr/share/swift /usr/share/miniconda /usr/share/az* /usr/local/lib/node_modules /usr/local/share/chromium /usr/local/share/powershell /usr/local/julia /usr/local/aws-cli /usr/local/aws-sam-cli /usr/share/gradle"
        rm_cmd: "rmz"  # Use 'rmz' for faster deletion (default: 'rm')
        rmz_version: "3.1.1"  # Required when rm_cmd is 'rmz'
        testing: false

    - name: Setup more Swap (for LTO)
      uses: thejerrybao/setup-swap-space@v1   # or pierotofy/set-swap-space
      with:
        swap-size-gb: 10          # 10-24 GB is common for heavy LTO
        # swap-space-path: /mnt/swapfile   # optional

    - name: Setup Build Environment
      uses: ./.github/actions/setup-build-environment
      env:
        BOOT_SIGN_KEY: ${{ secrets.BOOT_SIGN_KEY }}
          
    - name: Download Kernel Repository
      uses: ./.github/actions/download-kernel
      with:
        version: ${{ inputs.version }}
        android_version: ${{ inputs.android_version }}
        kernel_version: ${{ inputs.kernel_version }}
        os_patch_level: ${{ inputs.os_patch_level }}
        use_repo: ${{ inputs.use_repo }}

    - name: Set Build Timestamp from Kernel Commit
      shell: bash
      run: |
        set -x
        # Hardcode the build timestamp to the 5th day of the patch level
        # at 04:20 UTC, using the existing timestamp formats expected by the build.
        OS_PATCH_LEVEL_INPUT="${{ inputs.os_patch_level }}"
        if [[ "$OS_PATCH_LEVEL_INPUT" == lts* ]]; then
          if [[ "$OS_PATCH_LEVEL_INPUT" =~ ^lts-([0-9]{2})$ ]]; then
            OS_PATCH_LEVEL_YM="$(date -u +%Y)-${BASH_REMATCH[1]}"
          else
            OS_PATCH_LEVEL_YM="$(date -u +%Y-%m)"
          fi
        else
          OS_PATCH_LEVEL_YM="$OS_PATCH_LEVEL_INPUT"
        fi
        FIXED_BUILD_DATE="${OS_PATCH_LEVEL_YM}-05 04:20:00 UTC"
        SOURCE_DATE_EPOCH=$(date -u -d "$FIXED_BUILD_DATE" +%s)
        echo "SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH" >> $GITHUB_ENV
        KBUILD_TS=$(date -u -d @${SOURCE_DATE_EPOCH} '+%a %b %d %H:%M:%S UTC %Y')
        echo "KBUILD_BUILD_TIMESTAMP=${KBUILD_TS}" >> $GITHUB_ENV
        # Keep git metadata aligned with the same fixed timestamp.
        GIT_DATE=$(date -u -d @${SOURCE_DATE_EPOCH} '+%Y-%m-%dT%H:%M:%SZ')
        echo "GIT_COMMITTER_DATE=${GIT_DATE}" >> $GITHUB_ENV
        echo "GIT_AUTHOR_DATE=${GIT_DATE}" >> $GITHUB_ENV
        echo "Build timestamp set to: $(date -u -d @${SOURCE_DATE_EPOCH} '+%Y-%m-%d %H:%M:%S UTC') (epoch: $SOURCE_DATE_EPOCH)"

    - name: Extract Sublevel and Set File Name
      id: extract
      uses: ./.github/actions/extract-sublevel-file-name
      with:
        android_version: ${{ inputs.android_version }}
        kernel_version: ${{ inputs.kernel_version }}
        sublevel: ${{ inputs.sublevel }}
        os_patch_level: ${{ inputs.os_patch_level }}
        variant: ${{ inputs.variant }}

    - name: Kernel Fixes
      uses: ./.github/actions/kernel-fixes
      with:
        version: ${{ inputs.version }}
        android_version: ${{ inputs.android_version }}
        kernel_version: ${{ inputs.kernel_version }}
        sublevel: ${{ steps.extract.outputs.sublevel }}
        os_patch_level: ${{ inputs.os_patch_level }}

    - name: Setup KernelSU-Next
      if: contains(inputs.feature_set, 'KSUN') || inputs.feature_set == 'FULL'
      uses: ./.github/actions/kernelsu
      with:
        use_latest_commits: ${{ inputs.use_latest_commits }}

    - name: SUSFS
      if: contains(inputs.feature_set, 'SUSFS') || inputs.feature_set == 'FULL'
      uses: ./.github/actions/susfs
      with:
        use_latest_commits: ${{ inputs.use_latest_commits }}
        version: ${{ inputs.version }}
        android_version: ${{ inputs.android_version }}
        kernel_version: ${{ inputs.kernel_version }}
        os_patch_level: ${{ inputs.os_patch_level }}
        sublevel: ${{ steps.extract.outputs.sublevel }}

    - name: Baseband Guard
      if: (contains(inputs.feature_set, 'BBG') || inputs.feature_set == 'FULL')
      uses: ./.github/actions/bbg

    - name: Setup Networking
      if: contains(inputs.feature_set, 'NET') || inputs.feature_set == 'FULL'
      uses: ./.github/actions/networking
      with:
        kernel_version: ${{ inputs.kernel_version }}
        android_version: ${{ inputs.android_version }}

    - name: DroidSpaces-OSS Patches
      if: contains(inputs.feature_set, 'DS') || inputs.feature_set == 'FULL'
      uses: ./.github/actions/droidspaces
      with:
        version: ${{ inputs.version }}
        kernel_version: ${{ inputs.kernel_version }}

    - name: Setup Misc Configs
      uses: ./.github/actions/misc
      with:
        version: ${{ inputs.version }}
        kernel_version: ${{ inputs.kernel_version }}
        android_version: ${{ inputs.android_version }}
        sublevel: ${{ steps.extract.outputs.sublevel }}
        variant: ${{ inputs.variant }}

    - name: Apply Device-Specific Patches
      uses: ./.github/actions/apply-device-patches
      with:
        version: ${{ inputs.version }}
        kernel_version: ${{ inputs.kernel_version }}

    - name: Apply ABI Compare Bypass
      if: false
      working-directory: ${{ github.workspace }}/kernel
      run: |
        # ABI compare bypass per kernel/android version
        # Edit each block as needed per version
        if [[ "$ANDROID_VERSION" == "android12" && "$KERNEL_VERSION" == "5.10" ]]; then
          sed -i 's/^\s*exit 1$/    echo "Who Cares? Bypassing Now!"/' build/abi/compare_to_symbol_list
        elif [[ "$ANDROID_VERSION" == "android13" && "$KERNEL_VERSION" == "5.10" ]]; then
          sed -i 's/^\s*exit 1$/    echo "Who Cares? Bypassing Now!"/' build/kernel/abi/compare_to_symbol_list
        elif [[ "$ANDROID_VERSION" == "android13" && "$KERNEL_VERSION" == "5.15" ]]; then
          sed -i 's/^\s*exit 1$/    echo "Who Cares? Bypassing Now!"/' build/kernel/abi/compare_to_symbol_list
        elif [[ "$ANDROID_VERSION" == "android14" && "$KERNEL_VERSION" == "5.15" ]]; then
          perl -i -pe 's/^(\s*)return 1$/$1print("Who Cares? Bypassing Now!")\n$1return 0/g if /if missing_symbols:/../return 1/' build/kernel/abi/check_buildtime_symbol_protection.py
        elif [[ "$ANDROID_VERSION" == "android14" && "$KERNEL_VERSION" == "6.1" ]]; then
          perl -i -pe 's/^(\s*)return 1$/$1print("Who Cares? Bypassing Now!")\n$1return 0/g if /if missing_symbols:/../return 1/' build/kernel/abi/check_buildtime_symbol_protection.py
        elif [[ "$ANDROID_VERSION" == "android15" && "$KERNEL_VERSION" == "6.6" ]]; then
          perl -i -pe 's/^(\s*)return 1$/$1print("Who Cares? Bypassing Now!")\n$1return 0/g if /if missing_symbols:/../return 1/' build/kernel/abi/check_buildtime_symbol_protection.py
        fi

    - name: Apply Kernel Branding
      uses: ./.github/actions/apply-kernel-branding
      with:
        variant: ${{ inputs.variant }}
        kernel_version: ${{ inputs.kernel_version }}
        android_version: ${{ inputs.android_version }}
        version: ${{ inputs.version }}
        sublevel: ${{ steps.extract.outputs.sublevel }}

    - name: Remove Protected Exports
      uses: ./.github/actions/remove-protected-exports

    - name: Clean Kernel Flags
      uses: ./.github/actions/clean-kernel-flags

    - name: Scan and collect patch rejects
      id: scan
      if: ${{ always() }}
      uses: ./.github/actions/scan-patch-rejects
        
    - name: Upload Rejects
      if: ${{ always() }}
      uses: actions/upload-artifact@v7
      with:
        name: ${{ steps.extract.outputs.file_name }}-Rejects
        path: patch-rejects/
        if-no-files-found: ignore
        compression-level: 9

    - name: 'Setup Cache and Build Environment'
      uses: ./.github/actions/cache-setup
      with:
        version: ${{ inputs.version }}
        android_version: ${{ inputs.android_version }}
        kernel_version: ${{ inputs.kernel_version }}
        sublevel: ${{ steps.extract.outputs.sublevel }}

    - name: Restore ccache
      id: restore-ccache
      if: inputs.version == 'android12-5.10' || inputs.version == 'android13-5.10' || inputs.version == 'android13-5.15'
      uses: ./.github/actions/cache-restore
      with:
        cache_path: /home/runner/.ccache
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: ccache-cache
        restore_keys: |
          ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-

    - name: Restore lto-cache (ccache versions)
      id: restore-lto-ccache
      if: inputs.version == 'android12-5.10' || inputs.version == 'android13-5.10' || inputs.version == 'android13-5.15'
      uses: ./.github/actions/cache-restore
      with:
        cache_path: /home/runner/.ld_cache
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: lto-cache
        restore_keys: |
          ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-

    - name: Restore bazel-cache
      id: restore-bazel
      if: inputs.version == 'android14-5.15' || inputs.version == 'android14-6.1' || inputs.version == 'android15-6.6' || inputs.version == 'android16-6.12'
      uses: ./.github/actions/cache-restore
      with:
        cache_path: /home/runner/.cache/bazel
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: bazel-cache
        restore_keys: |
          ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-

    - name: Check cache hit
      run: |
        echo "Cache restore status:"        CCACHE_HIT="${{ steps.restore-ccache.outputs.cache-hit || 'skipped' }}"
        LTO_CCACHE_HIT="${{ steps.restore-lto-ccache.outputs.cache-hit || 'skipped' }}"
        BAZEL_HIT="${{ steps.restore-bazel.outputs.cache-hit || 'skipped' }}"
        LTO_BAZEL_HIT="${{ steps.restore-lto-bazel.outputs.cache-hit || 'skipped' }}"
        echo "  ccache: $CCACHE_HIT"
        echo "  lto (ccache versions): $LTO_CCACHE_HIT"
        echo "  bazel: $BAZEL_HIT"
        echo "  lto (bazel versions): $LTO_BAZEL_HIT"

    - name: Get Cache Stats
      uses: ./.github/actions/cache-stats
      with:
        clear_stats: true

    - name: Build Normal Kernel
      env:
        SOURCE_DATE_EPOCH: ${{ env.SOURCE_DATE_EPOCH }}
        KBUILD_BUILD_TIMESTAMP: ${{ env.KBUILD_BUILD_TIMESTAMP }}
      uses: ./.github/actions/build-kernel
      with:
        version: ${{ inputs.version }}
        bypass: false

    - name: Get Cache Stats
      uses: ./.github/actions/cache-stats
      with:
        clear_stats: false

    - name: Save ccache
      uses: ./.github/actions/cache-save
      if: inputs.version == 'android12-5.10' || inputs.version == 'android13-5.10' || inputs.version == 'android13-5.15'
      with:
        cache_path: /home/runner/.ccache
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: "ccache-cache"
        compression_level: 9
        github_token: ${{ secrets.MY_GITHUB_TOKEN }}

    - name: Save lto-cache
      uses: ./.github/actions/cache-save
      if: inputs.version == 'android12-5.10' || inputs.version == 'android13-5.10' || inputs.version == 'android13-5.15'
      with:
        cache_path: /home/runner/.ld_cache
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: "lto-cache"
        compression_level: 9
        github_token: ${{ secrets.MY_GITHUB_TOKEN }}

    - name: Save bazel-cache
      uses: ./.github/actions/cache-save
      if:  inputs.version == 'android14-5.15' || inputs.version == 'android14-6.1' || inputs.version == 'android15-6.6' || inputs.version == 'android16-6.12'
      with:
        cache_path: /home/runner/.cache/bazel
        cache_key: ${{ inputs.android_version }}-${{ inputs.kernel_version }}.${{ steps.extract.outputs.sublevel }}-${{ inputs.os_patch_level }}
        cache_bucket: "bazel-cache"
        compression_level: 9
        github_token: ${{ secrets.MY_GITHUB_TOKEN }}

    - name: Build Bypass Kernel
      env:
        SOURCE_DATE_EPOCH: ${{ env.SOURCE_DATE_EPOCH }}
        KBUILD_BUILD_TIMESTAMP: ${{ env.KBUILD_BUILD_TIMESTAMP }}
      uses: ./.github/actions/build-kernel
      with:
        bypass: true
        version: ${{ inputs.version }}

    - name: Upload Artifacts
      uses: actions/upload-artifact@v7
      with:
        name: ${{ steps.extract.outputs.file_name }}-AnyKernel3
        path: ${{ github.workspace }}/AnyKernel3/**
        if-no-files-found: ignore
        compression-level: 9