name: Filechange Checker

on:
  workflow_call:
    outputs:
      srcfileschanged:
        description: "'true' if src/** or .github/workflows/** files have changed in the branch"
        value: ${{ jobs.file-change-check.outputs.srcfileschanged }}
      docfileschanged:
        description: "'true' if docs/** or src/** or .github/workflows/** files have changed in the branch"
        value: ${{ jobs.file-change-check.outputs.docfileschanged }}

jobs:
  file-change-check:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: read
    outputs:
      srcfileschanged: ${{ steps.srcchecker.outputs.srcfileschanged }}
      docfileschanged: ${{ steps.docchecker.outputs.docfileschanged }}
    steps:
      - uses: actions/checkout@v3

      # only run CI tests if the src folder or workflow actions have changed
      - name: Check for file changes in src/ or .github/workflows/
        uses: dorny/paths-filter@v2
        id: dornycheck
        with:
          list-files: json
          filters: |
            src:
              - 'src/**'
            docs:
              - 'docs/**'
            actions:
              - '.github/workflows/**'
              - '.github/actions/**'

      - name: Check dorny for changes in src filepaths
        id: srcchecker
        if: steps.dornycheck.outputs.src == 'true' || steps.dornycheck.outputs.actions == 'true'
        run: |
          echo "src or workflow file changes occurred"
          echo ::set-output name=srcfileschanged::true

      - name: Check dorny for changes in docs related filepaths
        id: docchecker
        if: steps.dornycheck.outputs.src == 'true' || steps.dornycheck.outputs.docs == 'true' || steps.dornycheck.outputs.actions == 'true'
        run: |
          echo "docs, src or workflow file changes occurred"
          echo ::set-output name=docfileschanged::true