repo-banner.yml

name: GitHub Repo Banner

on:
  workflow_dispatch:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  generate:
    runs-on: ubuntu-latest
    concurrency:
      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
      cancel-in-progress: true

    permissions:
      # Give the default GITHUB_TOKEN write permission to commit and push the
      # added or changed files to the repository.
      contents: write

    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Fetch repo metadata
      id: metadata
      uses: ahmadnassri/action-metadata@v2

    - name: Checkout ${{ steps.metadata.outputs.owner_login}}/.github
      if: steps.metadata.outputs.repository_name != '.github'
      uses: actions/checkout@v4
      with:
        repository: '${{ steps.metadata.outputs.owner_login }}/.github'
        ref: 'main'
        path: 'github'

    - name: Symlink ${{github.workspace}} to `github/`
      if: steps.metadata.outputs.repository_name == '.github'
      run: |
        ln -s ${{github.workspace}} ${{github.workspace}}/github

    - uses: actions-tools/yaml-outputs@49506207f91d468273fd5e73fbd18d6d2d9df9b1
      id: readme
      with:
        file-path: 'README.yaml'
        fail-on-file-not-found: false

    - name: Format Repo Metadata
      id: meta
      uses: actions/github-script@v7
      env:
        README_NAME: ${{steps.readme.outputs.name}}
        REPOSITORY_NAME: ${{ steps.metadata.outputs.repository_name }}
        REPOSITORY_DESCRIPTION: ${{ steps.metadata.outputs.repository_description }}
      with:
        script: |
          const wrapEmoji = (text) => {
            // https://gist.github.com/srsbiz/2b1b4d624e82bf5c92fceb12aad4cd22
            const reEmoji = /\p{RI}\p{RI}|\p{Emoji}(\p{EMod}+|\u{FE0F}\u{20E3}?|[\u{E0020}-\u{E007E}]+\u{E007F})?(\u{200D}\p{Emoji}(\p{EMod}+|\u{FE0F}\u{20E3}?|[\u{E0020}-\u{E007E}]+\u{E007F})?)+|\p{EPres}(\p{EMod}+|\u{FE0F}\u{20E3}?|[\u{E0020}-\u{E007E}]+\u{E007F})?|\p{Emoji}(\p{EMod}+|\u{FE0F}\u{20E3}?|[\u{E0020}-\u{E007E}]+\u{E007F})/gu;
            return text.replace(reEmoji, '<span class="emoji" role="img" aria-hidden="true">$&</span>');
          }

          let name = process.env.README_NAME || process.env.REPOSITORY_NAME
          let type = 'Project';
          let desc = process.env.REPOSITORY_DESCRIPTION;
          let output = '.github/banner.png';

          // Logic to determine repository type and modify name and type accordingly
          if (name.startsWith('terraform-')) {
            type = name.includes('provider') ? 'Terraform Provider' : 'Terraform Module';
            name = name.replace('terraform-', '');
          } else if (name.startsWith('github-action-')) {
            type = 'GitHub Action';
            name = name.replace('github-action-', '');
          } else if (name.startsWith('example-')) {
            type = 'Example';
            name = name.replace('example-', '');
          } else if (name.startsWith('infra-')) {
            type = 'Infrastructure';
            name = name.replace('infra-', '');
          } else if (name === '.github') {
            type = '🛠️ Configuration';
          }

          // Handling description
          if (desc === 'null') {
            desc = '';
          } else {
            desc = desc.split('.')[0]; // Keeping only the first sentence
          }

          // Wrapping emojis
          type = wrapEmoji(type);
          name = wrapEmoji(name);
          desc = wrapEmoji(desc);

          // Setting outputs
          core.setOutput('type', type);
          core.setOutput('name', name);
          core.setOutput('desc', desc);
          core.setOutput('output', output);


    - name: Generate banner image
      id: screenshot
      uses: cloudposse-github-actions/screenshot@main
      with:
        url: "file://${{github.workspace}}/github/banner/index.html"
        output: "${{ steps.meta.outputs.output }}"
        customizations: |
          "#name": >-
            ${{ steps.meta.outputs.name }}
          "#type": >-
            ${{ steps.meta.outputs.type }}
          "#desc": >-
            ${{ steps.meta.outputs.desc }}
        viewportWidth: 1280
        viewportHeight: 320
        omitBackground: true

    - uses: stefanzweifel/git-auto-commit-action@v5
      name: Commit artifact
      id: auto-commit
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        commit_message: "chore: update repo banner image"
        commit_user_name: screenshot-action 📷
        commit_user_email: actions@github.com
        commit_author: screenshot-action 📷 <actions@github.com>
        file_pattern: '${{ steps.meta.outputs.output }}'

    - name: Add Image to Step Summary
      if: steps.auto-commit.outputs.changes_detected == 'true'
      run: |
        echo "## Generated Screenshot" >> $GITHUB_STEP_SUMMARY
        echo "![Generated Screenshot](https://github.com/${{ github.repository }}/blob/${{ steps.auto-commit.outputs.commit_hash }}/${{ steps.screenshot.outputs.file }}?raw=true)" >> $GITHUB_STEP_SUMMARY

    - name: No changes
      if: steps.auto-commit.outputs.changes_detected == 'false'
      run: |
        echo "No changes to screenshot" >> $GITHUB_STEP_SUMMARY