name: LinUtil Preview

on:
  workflow_dispatch:
    inputs:
        run_id:
          description: 'Run ID of LinUtil Release'
          required: true
  workflow_run:
    workflows: ["LinUtil Release"]
    types:
      - completed

jobs:
  generate_preview:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Set Run ID
        run: |
          if [ "${{ github.event_name }}" == "workflow_run" ]; then
            echo "run_id=${{ github.event.workflow_run.id }}" >> $GITHUB_ENV
          else
            echo "run_id=${{ github.event.inputs.run_id }}" >> $GITHUB_ENV
          fi

      - name: Download build artifacts
        uses: actions/download-artifact@v4
        with:
          name: linutil-artifact
          github-token: ${{ secrets.GITHUB_TOKEN }}
          run-id: ${{ env.run_id }}

      - name: Set env
        run: |
          chmod +x linutil
          echo "${{ github.workspace }}" >> $GITHUB_PATH

      - name: Generate preview
        uses: charmbracelet/vhs-action@v2.1.0
        with:
          path: "docs/assets/preview.tape"

      - name: Move preview
        run: mv preview.gif docs/assets/preview.gif

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: Preview for ${{ env.run_id }}
          title: 'Update preview GIF'
          body: 'Automatically generated preview GIF from workflow run ${{ env.run_id }}'
          branch: update-preview-gif
          base: main
          delete-branch: true
          add-paths: |
            docs/assets/preview.gif
        if: success()