on:
  schedule:
    - cron: '0 0 * * *'

jobs:
  update-instances:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Install dependencies
      run: sudo apt-get install -y jq

    - uses: webfactory/ssh-agent@v0.5.3
      with:
        ssh-private-key: |
          ${{ secrets.PRIMARY_REPO_KEY }}

    - name: Fetch instances
      run: |
        function apply_update() {
          mv services-tmp.json services.json
          rm -f *-tmp.json

          # Ensure no trailing slashes for any instance
          sed -i 's/\/"/"/g' services.json
        }

        # ==============================================================
        # Git config
        # ==============================================================
        git config --global user.name github-actions
        git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
        git remote set-url origin git@github.com:benbusby/farside.git
        git checkout main

        # ==============================================================
        # Searx update
        # ==============================================================
        echo "Fetching searx instances..."
        curl -s https://searx.space/data/instances.json | \
          jq '[
            .instances |
            to_entries[] |
            select(.value.network_type == "normal") |
            select(.value.version | . != null) |
            select(.value.version | startswith("1.0.0")) |
            select(.value.network.asn_privacy == 0) |
            select(.value.http.error == null) |
            select(.value.tls.grade == "A+" or .value.tls.grade == "A") |
            select(.value.http.grade == "A+" or .value.http.grade == "A") |
            select(.value.html.grade == "V" or .value.html.grade == "F") |
            .key
          ] | sort' > searx-tmp.json

        cat searx-tmp.json | jq .

        jq --slurpfile searx searx-tmp.json \
          '( .[] | select(.type == "searx") )
          .instances |= $searx[0]' services.json > services-tmp.json

        apply_update

        # ==============================================================
        # Simply Translate update
        # ==============================================================
        curl -s https://simple-web.org/instances/simplytranslate | sort > st-out
        sed -i -e 's/^/https:\/\//' st-out
        jq -ncR '[inputs]' <<< "$(cat st-out)" > st-tmp.json

        jq --slurpfile simplytranslate st-tmp.json \
          '( .[] | select(.type == "simplytranslate") )
          .instances |= $simplytranslate[0]' services.json > services-tmp.json

        apply_update

        # ==============================================================
        # TODO: Update instances for other services
        # ==============================================================

        # ==============================================================
        # Push changes
        # ==============================================================
        git add services.json
        git commit -m '[CI] Auto update instances' || exit 0
        git push
