name: Update JSON Date in PR

on:
  pull_request:
    branches:
      - main
    types:
      - opened
      - synchronize
      - reopened

jobs:
  update_json:
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Configure Git user
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "github-actions[bot]"

      - name: Get list of changed files in PR
        id: files
        uses: actions/github-script@v7
        with:
          script: |
            const prNumber = context.payload.pull_request.number;
            const prFiles = await github.rest.pulls.listFiles({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: prNumber,
            });

            // Filter for JSON files only
            const changedJsonFiles = prFiles.data
              .filter(file => file.filename.endsWith('.json'))
              .map(file => file.filename);

            core.setOutput('changed_files', changedJsonFiles.join('\n'));
            console.log('Changed JSON files:', changedJsonFiles);

      - name: Update dates in changed JSON files
        run: |
          changed_files="${{ steps.files.outputs.changed_files }}"
          if [[ -z "$changed_files" ]]; then
            echo "No JSON files changed in this PR. Exiting."
            exit 0
          fi

          for file in $changed_files; do
            echo "Updating $file with current date."
            # Your logic to update the file
            jq '.date_created = "'"$(date +%Y-%m-%d)"'"' "$file" > tmp.$$.json && mv tmp.$$.json "$file"
          done

      - name: Commit changes if updated
        run: |
          git add *.json
          git diff --cached --quiet || git commit -m "Update JSON dates"

      - name: Push changes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git push