name: ABI Compatibility

on:
  workflow_run:
    workflows: ["ABI Compatibility Build"]
    types: [completed]

permissions: {}

jobs:
  abi-diff:
    permissions:
      pull-requests: write

    name: ABI - Difference
    if: ${{ github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request' }}
    runs-on: ubuntu-latest

    steps:
      - name: Download abi-head
        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
        with:
          name: abi-head
          path: abi-head
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Download abi-base
        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
        with:
          name: abi-base
          path: abi-base
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup ApiCompat
        run: |
          dotnet tool install --global Microsoft.DotNet.ApiCompat.Tool

      - name: Run ApiCompat
        id: diff
        run: |
          {
            echo 'body<<EOF'
            for file in Jellyfin.Data.dll MediaBrowser.Common.dll MediaBrowser.Controller.dll MediaBrowser.Model.dll Emby.Naming.dll Jellyfin.Extensions.dll Jellyfin.MediaEncoding.Keyframes.dll Jellyfin.Database.Implementations.dll; do
              COMPAT_OUTPUT="$( { apicompat --left ./abi-base/${file} --right ./abi-head/${file}; } 2>&1 || true )"
              if [ "APICompat ran successfully without finding any breaking changes." != "${COMPAT_OUTPUT}" ]; then
                printf "\n${file}\n${COMPAT_OUTPUT}\n"
              fi
            done
            echo EOF
          } >> $GITHUB_OUTPUT

      - name: Find difference comment
        uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
        id: find-comment
        with:
          issue-number: ${{ github.event.workflow_run.pull_requests[0].number }}
          direction: last
          body-includes: abi-diff-workflow-comment

      - name: Reply or edit difference comment (changed)
        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
        if: ${{ steps.diff.outputs.body != '' }}
        with:
          issue-number: ${{ github.event.workflow_run.pull_requests[0].number }}
          comment-id: ${{ steps.find-comment.outputs.comment-id }}
          edit-mode: replace
          token: ${{ secrets.JF_BOT_TOKEN }}
          body: |
            <!--abi-diff-workflow-comment-->
            <details>
            <summary>ABI Difference</summary>

            ```
            ${{ steps.diff.outputs.body }}
            ```

            </details>

      - name: Reply or edit difference comment (unchanged)
        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
        if: ${{ steps.diff.outputs.body == '' && steps.find-comment.outputs.comment-id != '' }}
        with:
          issue-number: ${{ github.event.workflow_run.pull_requests[0].number }}
          comment-id: ${{ steps.find-comment.outputs.comment-id }}
          edit-mode: replace
          token: ${{ secrets.JF_BOT_TOKEN }}
          body: |
            <!--abi-diff-workflow-comment-->
            <details>
            <summary>ABI Difference</summary>

            No changes to the ABI found. See history of this comment for previous changes.

            </details>