name: Dokka

# https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#concurrency
concurrency: 
  group: "dokka"
  cancel-in-progress: true

on:
  push:
    branches:
      # choose your default branch
      - master
      - main
    paths-ignore:
      - '*.md'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@master
        with:
          path: "src"

      - name: Checkout dokka
        uses: actions/checkout@master
        with:
          ref: "dokka"
          path: "dokka"
      
      - name: Clean old builds
        run: rm -rf $GITHUB_WORKSPACE/dokka/html/*

      - name: Setup JDK 11
        uses: actions/setup-java@v1
        with:
          java-version: 11

      - name: Setup Android SDK
        uses: android-actions/setup-android@v2

      - name: Generate Dokka
        run: |
          cd src
          chmod +x gradlew
          ./gradlew app:dokkaHtml
          cd ..

      - name: Copy Dokka
        run: |
          cp -r src/app/build/dokka/html $GITHUB_WORKSPACE/dokka/

      - name: Push builds
        run: |
          cd $GITHUB_WORKSPACE/dokka
          git config --local user.email "actions@github.com"
          git config --local user.name "GitHub Actions"
          git add .
          git commit --amend -m "Generate dokka for $GITHUB_SHA" || exit 0   # do not error if nothing to commit
          git push --force