name: Major ABI Compliance Check

on:
  pull_request:
    branches:
      - amd-staging
      - release/rocm-rel-*
    paths:
      - 'include/amd_smi/amdsmi.h'
  push:
    branches:
      - amd-staging
      - release/rocm-rel-*
    paths:
      - 'include/amd_smi/amdsmi.h'
  workflow_dispatch:

permissions:
  contents: read
  pull-requests: write

jobs:
  check-abi:
    runs-on: lstt5
    steps:
      - name: Setup Environment
        run: |
          sudo rm -rf $GITHUB_WORKSPACE/* || true
          sudo rm -rf $GITHUB_WORKSPACE/.[!.]* || true
          sudo apt-get update
          sudo apt-get install -y perl build-essential git universal-ctags
          git clone https://github.com/lvc/abi-compliance-checker.git
          cd abi-compliance-checker
          sudo make install
          abi-compliance-checker --version

      - name: Checkout feature branch
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}
          submodules: true

      - name: Copy feature branch file as new
        run: |
          cp include/amd_smi/amdsmi.h amdsmi_new.h

      - name: Fetch old file
        run: |
          # Print debug info
          echo "Pull request base branch: ${{ github.base_ref }}"
          echo "Pull request head branch: ${{ github.head_ref }}"

          # Fetch the appropriate base branch
          if [ "${{ github.base_ref }}" = "amd-staging" ]; then
            # Pull request to amd-staging: use amd-staging as old
            git fetch origin amd-staging
            git checkout FETCH_HEAD -- include/amd_smi/amdsmi.h
            mv include/amd_smi/amdsmi.h amdsmi_old.h
          fi

      - name: Run ABI Compliance Check
        id: abi-check
        run: |
          # Create a status file with default failure
          echo "abi_exit_code=1" > $GITHUB_WORKSPACE/abi_status.txt

          if [ "${{ github.base_ref }}" = "amd-staging" ]; then
            echo "Comparing amd-staging (old) with ${{ github.head_ref }} (new)"
            abi-compliance-checker -lib amdsmi -old amdsmi_old.h -new amdsmi_new.h -v1 amd-staging -v2 ${{ github.head_ref }} -report-path abi-report.html && echo "abi_exit_code=0" > $GITHUB_WORKSPACE/abi_status.txt
          fi
        continue-on-error: true

      - name: Display ABI Check Logs
        if: always()
        run: |
          echo "Displaying ABI compliance check logs"
          find logs -type f -name "*.txt" -exec cat {} \;

      - name: Label PR as ABI BREAKAGE
        if: always() && github.event_name == 'pull_request'
        run: |
          if [ -f $GITHUB_WORKSPACE/abi_status.txt ]; then
            source $GITHUB_WORKSPACE/abi_status.txt
            if [ "$abi_exit_code" -ne 0 ]; then
              echo "ABI check failed, adding ABI BREAKAGE label to PR #${{ github.event.pull_request.number }}"
              gh pr edit ${{ github.event.pull_request.number }} --add-label "MAJOR ABI BREAKAGE"
            fi
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Upload ABI Report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: abi-report
          path: abi-report.html

      - name: Fail Workflow on ABI Check Failure
        if: always()
        run: |
          echo "Checking ABI check exit code..."
          if [ -f $GITHUB_WORKSPACE/abi_status.txt ]; then
            source $GITHUB_WORKSPACE/abi_status.txt
            echo "ABI check exit code: $abi_exit_code"
            if [ "$abi_exit_code" -ne 0 ]; then
              echo "::error::⚠️ ABI BREAKAGE FOUND ⚠️ CHECK \"Run ABI Compliance Check\" LOGS OR THE abi-report ARTIFACT ATTACHED TO THIS WORKFLOW FOR MORE DETAILS"
              echo "::error::View the HTML report in the Artifacts section of this workflow run for detailed ABI compatibility analysis"
              exit 1
            else
              echo "✅ ABI check succeeded"
            fi
          else
            echo "ABI status file not found at $GITHUB_WORKSPACE/abi_status.txt, assuming failure"
            exit 1
          fi