name: Checks

on:
  push:
    branches:
      - '**'
  pull_request:
    branches:
      - '**'

jobs:
  clang_format:
    name: Check Clang-Format
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v2
      - name: Download Clang-Format
        run: |
          sudo apt update -qq
          sudo apt install clang-format -qq
      - name: Run Clang-Format
        run: scripts/clang-format.sh
      - name: Compare Results
        run: |
          DIFF=$(git diff)
          if [ ! -z "$DIFF" ]; then echo $DIFF && exit 1; fi

  comment_percentage:
    name: Check Comment Percentage
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    steps:
      - name: Checkout Current Repository
        uses: actions/checkout@v2
        with:
          path: current
          ref: ${{ github.ref }}
      - name: Checkout Base Repository
        uses: actions/checkout@v2
        with:
          path: base
          ref: ${{ github.base_ref }}
      - name: Download Cloc
        run: |
          sudo apt update -qq
          sudo apt install cloc -qq
      - name: Run Cloc
        run: |
          BASE="$(base/scripts/cloc.sh --percentage-only)"
          CURRENT="$(current/scripts/cloc.sh --percentage-only)"
          echo "Percentage of Comments in Base Repository: $BASE"
          echo "Percentage of Comments after Merge: $CURRENT"
          if (( $(echo "$BASE > $CURRENT" |bc -l) ))
          then
            awk -v a=$CURRENT -v b=$BASE 'BEGIN {printf "Percentage decreased! (%3.4f%)\n", (a-b)}'
            exit 1
          else
            awk -v a=$CURRENT -v b=$BASE 'BEGIN {printf "Percentage increased! (%3.4f%)\n", (a-b)}'
          fi

  shellcheck:
    name: Run ShellCheck
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Run ShellCheck
        run: |
          find $GITHUB_WORKSPACE -type f -and \( -name "*.sh" \) | xargs shellcheck

  build:
    name: Run Tests
    runs-on: ubuntu-latest
    if: >
      github.event_name == 'pull_request' ||
      ( contains(github.ref, 'main') && !contains(github.event.head_commit.message, '[no-ci]') ) ||
      ( contains(github.ref, 'develop') && !contains(github.event.head_commit.message, '[no-ci]') ) ||
      contains(github.event.head_commit.message, '[run-ci]')
    steps:
    - uses: actions/checkout@v2
    - name: Build Burn-My-Windows
      run: make