name: Create Branch For Patch Release
on:
  workflow_dispatch:
    inputs:
      commit_shas:
        description: 'Comma-separated commit SHAs'
        required: true
      old_version:
        description: 'Old version to be patched'
        required: true
        default: '1.0.0'
      new_version:
        description: 'The new patch version'
        required: true
        default: '1.0.1'
      resumeUrl:
        description: 'n8n workflow resume URL'
        required: true
jobs:
  create-branch:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Validate inputs
        run: |
          if ! [[ "${{ inputs.old_version }}" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z]+(\.[0-9A-Za-z]+)*)?$ ]]; then
            echo "Invalid old version format: ${{ inputs.old_version }}"
            exit 1
          fi
          if ! [[ "${{ inputs.new_version }}" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z]+(\.[0-9A-Za-z]+)*)?$ ]]; then
            echo "Invalid new version format: ${{ inputs.new_version }}"
            exit 1
          fi
      - name: Notify if inputs are invalid
        if: ${{ failure() }}
        run: |
          curl -X POST -H "Content-Type: application/json" -d '{ "success": false, "message": "The old or new version you provided is invalid, make sure they both follow the SemVer format" }' ${{ inputs.resumeUrl }}
          exit 1
      - name: Setup, cherry-pick and push branch
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git switch "n8n@${{ inputs.old_version }}" --detach
          BRANCH="patch/${{ inputs.new_version }}"
          git checkout -b $BRANCH
          IFS=',' read -ra SHAS <<< "${{ inputs.commit_shas }}"
          for sha in "${SHAS[@]}"; do
            sha=$(echo $sha | xargs)
            if ! git merge-base --is-ancestor $sha HEAD; then
              echo "Cherry-picking commit $sha"
              git cherry-pick $sha
            else
              echo "Commit $sha is already in the branch, skipping"
            fi
          done
          git push -f origin $BRANCH
      - name: Notify if cherry-pick is successful
        if: ${{ success() }}
        run: |
          curl -X POST -H "Content-Type: application/json" -d '{ "success": true }' ${{ inputs.resumeUrl }}
      - name: Notify if cherry-pick is not successful
        if: ${{ failure() }}
        run: |
          curl -X POST -H "Content-Type: application/json" -d '{ "success": false, "message": "There was a conflict when trying to create the branch, please do the cherry-pick and resolve the conflicts manually or do not include the PRs that caused the conflict" }' ${{ inputs.resumeUrl }}