name: 📝 Template Checksum

on:
  push:
    branches:
      - main
    paths:
      - '**.yaml'
  workflow_dispatch: # allows manual triggering of the workflow

jobs:
  checksum:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with: 
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@v4
        with:
          go-version: 1.20.x

      - name: install checksum generator
        run: |
          go install -v github.com/projectdiscovery/nuclei/v2/cmd/generate-checksum@dev

      - name: generate checksum
        id: checksum
        run: |
          generate-checksum /home/runner/work/nuclei-templates/nuclei-templates/ templates-checksum.txt
          git status -s | wc -l | xargs -I {} echo CHANGES={} >> $GITHUB_OUTPUT

      - name: Commit files
        if: steps.checksum.outputs.CHANGES > 0
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git add templates-checksum.txt
          git commit -am "Auto Generated Templates Checksum [$(date)] :robot:"

      - name: Push changes
        if: steps.checksum.outputs.CHANGES > 0
        run: |
          git pull --rebase
          git push origin ${{ github.ref }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}