fetch_iss_tle.yml

name: Fetch ISS TLE

on:
  schedule:
    - cron: '0 1-23/6 * * *'  # Starts at 1 AM UTC and runs every 6 hours
  workflow_dispatch:  # Allow manual triggering if needed

jobs:
  fetch-tle:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout the repo
        uses: actions/checkout@v3

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.x'

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install requests

      - name: Run TLE Fetch Script
        run: |
          python scripts/fetch_tle.py

      - name: Update README with TLE count
        run: |
          # Get the number of TLEs using jq
          num_tles=$(jq '. | length' iss_tle.json)
          
          # Update or add the "Number of TLEs" line in README.md
          if grep -q '^Number of TLEs:' README.md; then
            # Update the existing line
            sed -i "s/^Number of TLEs:.*/Number of TLEs: ${num_tles}/" README.md
          else
            # Add a new line if not present
            echo >> README.md
            echo "Number of TLEs: ${num_tles}" >> README.md
          fi

      - name: Commit changes
        run: |
          git config --local user.email "actions@github.com"
          git config --local user.name "GitHub Actions"

          # Check if there are changes to commit
          if ! git diff --exit-code iss_tle.json; then
            git add iss_tle.json README.md
            git commit -m "Update ISS TLE and README with TLE count"
            git push
          else
            echo "No changes to commit."
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}