name: Update Pull Request

on:
  push:
    branches-ignore: ["main"]
  workflow_dispatch:

jobs:
  update-pr:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Generate a token
        id: generate-token
        uses: actions/create-github-app-token@v1
        with:
          app-id: ${{ vars.APP_ID }}
          private-key: ${{ secrets.APP_PRIVATE_KEY }}

      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Update JSON files
        run: |
          TODAY=$(date +%Y-%m-%d)
          for file in $(git diff --diff-filter=A --name-only HEAD | grep '^json/.*\.json$'); do
            if jq -e '.date_created' $file > /dev/null 2>&1; then
              echo "Updating date_created in $file"
              jq --arg date "$TODAY" '.date_created = $date' $file > temp.json && mv temp.json $file
              git add $file
            fi
          done

      - name: Commit and push changes to PR branch
        env:
          GH_TOKEN: ${{ steps.generate-token.outputs.token }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git commit -m "Update date_created in JSON files" || echo "No changes to commit"
          git push origin HEAD:${{ github.event.pull_request.head.ref }} --force