name: Publish

on:
  push:
    branches:
      - master

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Set up Python 3.x
        uses: actions/setup-python@v2
        with:
        # Semantic version range syntax or exact version of a Python version
          python-version: '3.x'
          # Optional - x64 or x86 architecture, defaults to x64
          architecture: 'x64'

      # You can test your matrix by printing the current Python version
      - name: Display Python version
        run: python -c "import sys; print(sys.version)"

      - name: mdBook Action
        uses: peaceiris/actions-mdbook@v1.1.11
        with:
          mdbook-version: '0.3.1'
          # mdbook-version: 'latest'

      - name: Remove cargo-config
        run: rm -f .cargo/config

      - name: Build docs
        run: cargo doc

      - name: Build books
        run: |
          langs=( en ru )
          latest=0.5
          vers=( 0.4.x )

          # Create directories
          td=$(mktemp -d)
          mkdir -p $td/$latest/book/
          cp -r target/doc $td/$latest/api

          # sed fixes
          sed 's|URL|rtfm/index.html|g' redirect.html > $td/$latest/api/index.html
          sed 's|URL|0.5|g' redirect.html > $td/index.html
          sed 's|URL|book/en|g' redirect.html > $td/$latest/index.html

          # Build books
          for lang in ${langs[@]}; do
              ( cd book/$lang && mdbook build )
              cp -r book/$lang/book $td/$latest/book/$lang
              cp LICENSE-* $td/$latest/book/$lang/
          done

          # Build older versions
          root=$(pwd)
          for ver in ${vers[@]}; do
              prefix=${ver%.*}

              mkdir -p $td/$prefix/book
              src=$(mktemp -d)
              curl -L https://github.com/rtfm-rs/cortex-m-rtfm/archive/v${ver}.tar.gz | tar xz --strip-components 1 -C $src

              pushd $src
              rm -f .cargo/config
              cargo doc || cargo doc --features timer-queue
              cp -r target/doc $td/$prefix/api
              sed 's|URL|rtfm/index.html|g' $root/redirect.html > $td/$prefix/api/index.html
              for lang in ${langs[@]}; do
                  ( cd book/$lang && mdbook build )
                  cp -r book/$lang/book $td/$prefix/book/$lang
                  cp LICENSE-* $td/$prefix/book/$lang/
              done
              sed 's|URL|book/en|g' $root/redirect.html > $td/$prefix/index.html
              popd

              rm -rf $src
          done

          # Forward CNAME file
          cp CNAME $td/
          mv $td/ bookstodeploy

      - name: Deploy
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./bookstodeploy