name: GitHub to Gerrit Mirror

run-name: "Mirror to Gerrit: ${{ github.event.ref || inputs.branch }} ${{ github.event.after }}"

on:
  workflow_dispatch:
    inputs:
      branch:
        description: 'Branch to mirror (amd-staging or amd-mainline)'
        required: true
        default: 'amd-staging'
        type: choice
        options:
          - amd-staging
          - amd-mainline
  pull_request:
    branches:
      - amd-staging
      - amd-mainline
    types: [closed]

env:
  GERRIT_SERVER: "gerrit-git.amd.com"
  GERRIT_PROJECT: "SYS-MGMT/ec/amd-smi" 
  GERRIT_USER: "z1_runner"
  GERRIT_PORT: "29418"

jobs:
  Setup:
    if: github.event_name == 'workflow_dispatch' || github.event.pull_request.merged == true
    runs-on: banff-sc-cx43-29
    steps:

      - name: Fix workspace permissions
        run: |
          sudo chown -R $(id -u):$(id -g) ${{ github.workspace }}
          sudo chmod -R u+rwX ${{ github.workspace }}

      - name: Check out repository code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Create SSH key
        run: |
          mkdir -p ~/.ssh
          chmod 700 ~/.ssh
          touch ~/.ssh/known_hosts
          touch ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          printf "%s" "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_rsa
          ssh-keyscan -p ${{ env.GERRIT_PORT }} ${{ env.GERRIT_SERVER }} >> ~/.ssh/known_hosts

      - name: Debug SSH setup
        run: |
          ls -la ~/.ssh
          ssh -p ${{ env.GERRIT_PORT }} ${{ env.GERRIT_USER }}@${{ env.GERRIT_SERVER }} || true

      - name: Set Gerrit remote
        run: |
          cd ${{ github.workspace }}
          if git remote | grep -q "gerrit"
          then
            git remote set-url gerrit ssh://${{ env.GERRIT_USER }}@${{ env.GERRIT_SERVER }}:${{ env.GERRIT_PORT }}/${{ env.GERRIT_PROJECT }}
          else
            git remote add gerrit ssh://${{ env.GERRIT_USER }}@${{ env.GERRIT_SERVER }}:${{ env.GERRIT_PORT }}/${{ env.GERRIT_PROJECT }}
          fi

      - name: Set committer identity for Gerrit
        run: |
          git config user.name "z1_runner"
          git config user.email "z1_runner@amd.com"

      - name: Fetch selected branch
        run: |
          BRANCH="${{ github.event.pull_request.base.ref || inputs.branch }}"
          git fetch origin ${BRANCH}:refs/remotes/origin/${BRANCH}
          git checkout ${BRANCH}

      - name: Mirror selected branch to Gerrit
        run: |
          BRANCH="${{ github.event.pull_request.base.ref || inputs.branch }}"
          git push gerrit refs/heads/${BRANCH}:refs/heads/${BRANCH}