name: Build SOS

on:
  workflow_dispatch:
  push:
    tags:
      - '*'

jobs:
  build-mentos:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the sources
        uses: actions/checkout@v4

      - name: Cache build dir
        id: mentos-cached-build
        uses: actions/cache@v4
        with:
          path: MentOS/build
          key: 427067e-mentos-cached-build

      - name: Checkout MentOS submodule
        if: steps.mentos-cached-build.outputs.cache-hit != 'true'
        run: git submodule update --init MentOS

      - name: Install dependencies
        if: steps.mentos-cached-build.outputs.cache-hit != 'true'
        run: |
          sudo apt-get update
          sudo apt-get install -y nasm fuse2fs

      - name: Build
        if: steps.mentos-cached-build.outputs.cache-hit != 'true'
        run: |
          cd MentOS
          cmake -B build -DKEYMAP_TYPE=KEYMAP_DE
          cmake --build build --parallel 2 --target exercises filesystem_permissions bootloader.bin

      - name: Upload MentOS artifact
        uses: actions/upload-artifact@v4
        with:
          name: MentOS
          path: MentOS/build


  build-qemu:
    runs-on: windows-latest
    defaults:
      run:
        shell: msys2 {0}

    steps:
      - name: Checkout the sources
        uses: actions/checkout@v4

      - name: Cache build dir
        id: qemu-cached-build
        uses: actions/cache@v4
        with:
          path: qemu/build
          key: v8.2.1-3-qemu-cached-build

      - name: Setup mingw build environment
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'
        uses: msys2/setup-msys2@v2
        with:
          update: true
          install: >-
            base-devel
            mingw-w64-x86_64-toolchain
            git
            python
            meson
            ninja
            mingw-w64-x86_64-glib2
            mingw-w64-x86_64-pixman
            python-setuptools
            mingw-w64-x86_64-gtk3

      - name: Checkout MentOS submodule
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'
        run: git submodule update --init qemu

      - name: Create needed directories
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'
        run: >
          mkdir qemu/build
          mkdir qemu-install

      - name: Configure QEMU build
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'
        run: >
          cd qemu/build;
          ../configure
          --prefix=$GITHUB_WORKSPACE/qemu-install
          --target-list=i386-softmmu
          --disable-werror
          --disable-stack-protector
          --disable-qom-cast-debug
          --enable-gtk
          --disable-sdl
          --disable-kvm
          --disable-dsound
          --disable-dbus-display
          --disable-guest-agent
          --disable-vnc
          --disable-tools
          --disable-bochs

      - name: Build QEMU
        run: cd qemu/build; make -j 2 all install
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'

      - name: Copy required DLLs into the build directory
        if: steps.qemu-cached-build.outputs.cache-hit != 'true'
        run: >
          cp /mingw64/bin/libbz2-1.dll
          /mingw64/bin/liblzo2-2.dll
          /mingw64/bin/libcairo-2.dll
          /mingw64/bin/libcairo-gobject-2.dll
          /mingw64/bin/libwinpthread-1.dll
          /mingw64/bin/libepoxy-0.dll
          /mingw64/bin/libgdk-3-0.dll
          /mingw64/bin/libgdk_pixbuf-2.0-0.dll
          /mingw64/bin/libgio-2.0-0.dll
          /mingw64/bin/libglib-2.0-0.dll
          /mingw64/bin/libgmodule-2.0-0.dll
          /mingw64/bin/libgobject-2.0-0.dll
          /mingw64/bin/libgtk-3-0.dll
          /mingw64/bin/libiconv-2.dll
          /mingw64/bin/libintl-8.dll
          /mingw64/bin/libncursesw6.dll
          /mingw64/bin/libpixman-1-0.dll
          /mingw64/bin/libpng16-16.dll
          /mingw64/bin/zlib1.dll
          /mingw64/bin/libzstd.dll
          /mingw64/bin/libgcc_s_seh-1.dll
          /mingw64/bin/libstdc++-6.dll
          /mingw64/bin/libfontconfig-1.dll
          /mingw64/bin/libfreetype-6.dll
          /mingw64/bin/libfribidi-0.dll
          /mingw64/bin/libpango-1.0-0.dll
          /mingw64/bin/libpangocairo-1.0-0.dll
          /mingw64/bin/libpangowin32-1.0-0.dll
          /mingw64/bin/libpangoft2-1.0-0.dll
          /mingw64/bin/libffi-8.dll
          /mingw64/bin/libpcre2-8-0.dll
          /mingw64/bin/libharfbuzz-0.dll
          /mingw64/bin/libatk-1.0-0.dll
          /mingw64/bin/libexpat-1.dll
          /mingw64/bin/libbrotlidec.dll
          /mingw64/bin/libbrotlicommon.dll
          /mingw64/bin/libthai-0.dll
          /mingw64/bin/libgraphite2.dll
          /mingw64/bin/libdatrie-1.dll
          qemu-install

      - name: Upload qemu artifact
        uses: actions/upload-artifact@v4
        with:
          name: qemu
          path: |
            qemu-install
            run.bat


  build-course:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the sources
        uses: actions/checkout@v4

      - name: Install dependencies
        run: |
          sudo apt update
          sudo apt install texlive-latex-extra texlive-lang-german

      - name: Install pandoc
        run: |
          wget https://github.com/jgm/pandoc/releases/download/3.1.11.1/pandoc-3.1.11.1-linux-amd64.tar.gz
          tar xf pandoc*.tar.gz
          sudo cp pandoc*/bin/pandoc /usr/bin

      - name: Install pandoc-plot
        run: |
          wget https://github.com/LaurentRDC/pandoc-plot/releases/download/1.7.0/pandoc-plot-Linux-x86_64-static.zip
          unzip pandoc-plot*.zip
          chmod a+rx pandoc-plot
          sudo cp pandoc-plot /usr/bin

      - name: Build course material
        run: |
          make -C course

      - name: Upload course artifact
        uses: actions/upload-artifact@v4
        with:
          name: course
          path: course/build


  publish:
    runs-on: ubuntu-latest
    needs:
      - build-mentos
      - build-qemu
      - build-course

    permissions:
      contents: write

    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v4

      - name: Extract run.bat from qemu artifact
        run: mv qemu/run.bat .

      - name: Zip the windows release
        run: zip -r sos-win.zip run.bat qemu MentOS course

      - name: Release artifacts
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v1
        with:
          files: sos-win.zip