name: Update JSON Date
on:
  schedule:
    - cron: "0 */6 * * *"
  workflow_dispatch:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  check-and-update-json:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout PR Branch
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.ref || github.head_ref }}

      - name: List changed files
        id: changed-files
        run: |
          PR_NUMBER="${{ github.event.pull_request.number }}"
          if [[ -n "$PR_NUMBER" ]]; then
            FILES=$(gh api repos/${{ github.repository }}/pulls/$PR_NUMBER/files --jq '.[].filename' | tr '\n' ' ')
          else
            FILES=$(git diff --name-status HEAD~1 | awk '$1 == "A" {print $2}')
          fi
          
          echo "FILES=$FILES" >> $GITHUB_ENV
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Process JSON files
        run: |
          TODAY=$(date -u +"%Y-%m-%d")
          UPDATED=false

          for FILE in $FILES; do
            if [[ "$FILE" =~ ^json/.*\.json$ ]]; then
              DATE_IN_JSON=$(jq -r '.date_created' "$FILE")

              if [[ "$DATE_IN_JSON" != "$TODAY" ]]; then
                echo "Updating $FILE: $DATE_IN_JSON -> $TODAY"
                jq --arg date "$TODAY" '.date_created = $date' "$FILE" > tmp.json && mv tmp.json "$FILE"
                UPDATED=true
              fi
            fi
          done

          if [[ "$UPDATED" == "true" ]]; then
            git config --global user.name "github-actions[bot]"
            git config --global user.email "github-actions[bot]@users.noreply.github.com"
            git commit -am "Update date_created in new JSON files"
            git push
          else
            echo "No updates needed."
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}