name: Pre-commit consistency check

on:
  workflow_dispatch:
  pull_request:
    types: [labeled, opened, reopened, synchronize]
  push:
    branches: [main]

concurrency:
  group: ${{ github.head_ref }}-precommit
  cancel-in-progress: true

jobs:
  pre-commit-check:
    if: github.event.action != 'labeled' || github.event.label.name == 'pre-commit ci run'
    name: Run pre-commit checks
    runs-on: ubuntu-20.04
    steps:
    - name: Checkout
      uses: actions/checkout@v2
      with:
        fetch-depth: 0
    - run: gh pr edit ${{ github.event.number }} --remove-label 'pre-commit ci run'
      if: github.event.action == 'labeled' && github.event.label.name == 'pre-commit ci run'
      env:
        GH_TOKEN: ${{ github.token }}
    - uses: dorny/paths-filter@v2
      id: filter
      with:
        list-files: shell
        filters: |
          addedOrModified:
            - added|modified: '**'

        # run only if changed files were detected
    - name: Run against changes
      uses: pre-commit/action@v3.0.1
      if: steps.filter.outputs.addedOrModified == 'true'
      with:
        extra_args: --files ${{ steps.filter.outputs.addedOrModified_files }}

        # run if no changed files were detected (e.g. workflow_dispatch on master branch)
    - name: Run against all files
      uses: pre-commit/action@v3.0.1
      if: steps.filter.outputs.addedOrModified != 'true'
      with:
        extra_args: --all-files

    - name: Commit pre-commit changes
      if: always()
      run: |
        git config --global user.name "github-actions[bot]"
        git config --global user.email "github-actions[bot]@users.noreply.github.com"
        git add .
        git commit -m "chore: pre-commit changes [skip ci]" || echo "No changes to commit"
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Push pre-commit changes
      if: always() && github.event.action != 'pull_request' && github.event.action != 'labeled' && github.event.action != 'synchronize'
      run: |
        git push ${{ github.head_ref }}
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - uses: pre-commit-ci/lite-action@v1.0.2
      if: always()