create_issue_if_referencemd_changes.yml

name: Fetch Commits on reference.md and create an issue with details

on:
  schedule:
    - cron: '0 0 * * *'  # Runs daily at midnight UTC

jobs:
  fetch-and-create-pr:
    runs-on: ubuntu-latest

    steps:

      - name: Checkout master of gtfs-validator repo
        uses: actions/checkout@v4.0.0
        with:
          ref: master
          fetch-depth: 0
          token: ${{ secrets.GENERIC_ACTION_REPO_SCOPE }} 

      - name: Use Node.js 16.x
        uses: actions/setup-node@v3.8.1
        with:
          node-version: '16.x'

      - name: Install Node.js dependencies
        run: npm install @actions/github

      - name: Set up Git
        id: git-setup
        run: |
          git config user.name github-actions[bot]
          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
          echo "reviewer=emmambd" >> $GITHUB_OUTPUT 
          echo "assigned=emmambd" >> $GITHUB_OUTPUT
        # Comma-separated list of reviewers and assignees

      - name: Calculate Dates
        id: dates
        run: |
          echo "yesterday=$(date -d '-1 day' '+%Y-%m-%d')" >> $GITHUB_OUTPUT
          echo "today=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT

      - name: Fetch commits and process JSON
        id: process_json
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GENERIC_ACTION_REPO_SCOPE }}
          script: |
            const response = await github.request('GET /repos/google/transit/commits', {
              owner: 'google',
              repo: 'transit',
              path: 'gtfs/spec/en/reference.md',
              since: '${{ steps.dates.outputs.yesterday}}T00:00:00Z',
            });
            
            const commits = response.data;
            core.setOutput('commits_data', commits);
            core.setOutput('commits_length', commits.length);
      
            if (commits.length > 0) {
              const extractedData = commits.map(item => ({
                author: item.commit.author.name,
                username: item.author.login,
                date: item.commit.author.date,
                message: item.commit.message.replace(/\n\s*\n/g, '\n'),
                html_url: item.html_url
              }));

              const formattedExtractedData = extractedData.map((item, index) => {
              const dateObjectUTC = new Date(item.date);
              const dateObjectETC = new Date(dateObjectUTC.toLocaleString('en-US', { timeZone: 'America/Toronto' }));

              const formattedDateETC = dateObjectETC.toLocaleDateString('en-US', {
                year: 'numeric',
                month: 'long',
                day: 'numeric',
              });

              const formattedTimeUTC = dateObjectUTC.toLocaleTimeString('en-US', {
                hour: '2-digit',
                minute: '2-digit',
                timeZoneName: 'short',
              });

              const formattedTimeETC = dateObjectETC.toLocaleTimeString('en-US', {
                hour: '2-digit',
                minute: '2-digit',
              });

              const counter = index + 1;

              return `# \`Commit Nº ${counter}\`\n## AUTHOR × DATE\n* **${item.author}** ( _${item.username}_ )\n* **${formattedDateETC}**   @   ${formattedTimeETC} ETC (${formattedTimeUTC})\n## MESSAGE\n\`\`\`\n${item.message}\n\`\`\`\n## FILES CHANGED\n> ### ${item.html_url}\n\n\`\`\`\n${item.html_url}\n\`\`\`\n---\n`;
              }).join('\n');
              
              core.setOutput('extracted_data', formattedExtractedData);
              core.setOutput('condition_met', 'true');

            } else {
              core.setOutput('extracted_data', '');
              core.setOutput('condition_met', 'false');
            }

      - name: Create Issue
        if: steps.process_json.outputs.condition_met == 'true'
        uses: dacbd/create-issue-action@main
        with:
          token: ${{ secrets.GENERIC_ACTION_REPO_SCOPE }}
          title: ${{ steps.dates.outputs.today }} — ${{ steps.process_json.outputs.commits_length }} new commit(s) made to `reference.md` in Google Transit's repo
          body: |
            ${{ steps.process_json.outputs.extracted_data }}
          labels: 'status: Needs triage'
          assignees: ${{ steps.git-setup.outputs.assigned }}