name: Dependency upgrade
on:
  workflow_dispatch:
    inputs:
      dependency:
        description: 'Dependency to upgrade'
        required: true
        type: choice
        options:
          - all
          - mermaid
          - katex
  schedule:
    - cron: '32 4 * * *'

jobs:
  upgrade-dependency:
    name: Upgrade dependency
    runs-on: ubuntu-24.04
    permissions:
      contents: write
      pull-requests: write
    strategy:
      matrix:
        dependency: ${{ github.event_name == 'schedule' && fromJson('["mermaid", "katex"]') || fromJson(format('["{0}"]', github.event.inputs.dependency)) }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up environment
        run: |
          sudo apt-get update
          sudo apt-get install -y jq npm curl git
          npm install uglify-js -g
          uglifyjs --version

      - name: Configure GPG key
        run: |
          echo -n ${{ secrets.GPG_PRIVATE_KEY }} | base64 --decode | gpg --import

      - name: Configure Git
        run: |
          git config --global user.signingkey 33EACFE956484C3940BFEEDCE4EC28F8DFB57474
          git config --global commit.gpgsign true
          git config --global user.name "welpo"
          git config --global user.email "welpo@users.noreply.github.com"

      - name: Check for existing branch
        id: check_branch
        run: |
          if git ls-remote --heads origin deps/upgrade-${{ matrix.dependency }} | grep -q deps/upgrade-${{ matrix.dependency }}; then
            echo "branch_exists=true" >> $GITHUB_OUTPUT
          else
            echo "branch_exists=false" >> $GITHUB_OUTPUT
          fi

      - name: Handle existing branch
        if: steps.check_branch.outputs.branch_exists == 'true'
        run: |
          echo "Branch deps/upgrade-${{ matrix.dependency }} already exists."
          echo "Skipping upgrade as there's already an open PR"
          exit 0

      - name: Create and switch to new branch
        run: |
          git checkout -b deps/upgrade-${{ matrix.dependency }}

      - name: Run upgrade script
        shell: bash
        run: |
          if [[ "${{ matrix.dependency }}" == "all" ]]; then
            bash scripts/upgrade-deps --all
          else
            bash scripts/upgrade-deps --${{ matrix.dependency }}
          fi

      - name: Push changes and create PR
        shell: bash
        run: |
          if git diff --quiet HEAD origin/main; then
            echo "No changes to push for ${{ matrix.dependency }}"
            exit 0
          fi
          git push -u origin deps/upgrade-${{ matrix.dependency }}
          gh pr create --fill --base main --head deps/upgrade-${{ matrix.dependency }} --label "dependencies"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}