# This action gets all changed markdown files in /docs and /versioned_docs using tj-actions/changed-files@v42
# It compares new commits in the PR with the base commit (github.event.pull_request.base.sha)
# It checks if no markdown files are changed 
# It shows a count of markdown files and lists all changed markdown files
# It uses Vale (https://vale.sh/docs/vale-cli/installation/) to provide feedback base off the SUSE Style Guide / OpenSUSE style rules (https://github.com/openSUSE/suse-vale-styleguide)

name: Style check
on:
  pull_request:
    paths-ignore:
      - '**/README.md'

jobs:
  vale-lint:
    name: runner / vale
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        continue-on-error: true
        with:
          fetch-depth: 0  # OR "2" -> To retrieve the preceding commit.
          submodules: true
      - name: Get all changed markdown files
        continue-on-error: true
        id: changed-markdown-files
        uses: tj-actions/changed-files@v42
        with:
            # Avoid using single or double quotes for multiline patterns
            files: |
               docs/**
               versioned_docs/**
            separator: ","
            base_sha: ${{ github.event.pull_request.base.sha }}
        env:
            ALL_CHANGED_FILES: ${{ 0 }}
      - name: No files changed?
        continue-on-error: true
        if: steps.changed-markdown-files.outputs.any_changed == 'false'
        run: |
              echo "No files changed"
              echo "ALL_CHANGED_FILES=$ALL_CHANGED_FILES" >> $GITHUB_ENV
      - name: List all changed files markdown files
        continue-on-error: true
        if: steps.changed-markdown-files.outputs.any_changed == 'true'
        env:
            ALL_CHANGED_FILES: ${{ steps.changed-markdown-files.outputs.all_changed_files }}
            ALL_CHANGED_FILES_COUNT: ${{ steps.changed-markdown-files.outputs.all_changed_files_count }}
            SHA: ${{ github.head_ref }}
            HEAD: ${{ github.base_ref }}
        run: |
            echo "Total Files Changed:" ${ALL_CHANGED_FILES_COUNT}
            echo ${ALL_CHANGED_FILES}
            echo "ALL_CHANGED_FILES=$ALL_CHANGED_FILES" >> $GITHUB_ENV
      - uses: errata-ai/vale-action@v2.1.0
        continue-on-error: true
        if: steps.changed-markdown-files.outputs.any_changed == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          separator: ", "
          files: ${{ env.ALL_CHANGED_FILES }}