name: Generate Linux AppImage
on:
  push:
    branches:
    - master
    # For testing.
    #- test_arch
    tags:
      - "v*.*"
    paths-ignore:
    - '*.{txt,md}'
    - 'Tools/**'
    - '.{editorconfig,gitattributes,gitignore}'
    - 'appveyor.yml'
  pull_request:
    branches:
    - master
    paths-ignore:
    - '*.{txt,md}'
    - 'Tools/**'
    - '.{editorconfig,gitattributes,gitignore}'
    - 'appveyor.yml'

env:
  SDL_AUDIODRIVER: "dummy" #"disk"
  #SDL_VIDEODRIVER: "dummy"
  #BUILD_CONFIGURATION: Release #RelWithDebInfo

jobs:
  build:
    name: build (${{ matrix.id }})
    strategy:
      fail-fast: false
      matrix:
        include:
        - os: ubuntu-24.04
          id: x86_64
        - os: ubuntu-24.04-arm
          id: aarch64

    runs-on: ${{ matrix.os }}
    container: ghcr.io/pkgforge-dev/archlinux:latest
    env:
      CCACHE_DIR: ${{ github.workspace }}/.ccache
      CCACHE_COMPILERCHECK: content
      CCACHE_SLOPPINESS: time_macros
    steps:
      - name: Install git
        run: pacman -Syu --noconfirm git

      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
          submodules: recursive

      - name: Check Valid Version Tags
        id: valid-tags
        shell: bash
        run: |
          # Fix dubious ownership issue when running git describe inside a container
          git config --global --add safe.directory "$PWD" # Alternatively, chown -R $(id -u):$(id -g) $PWD
          echo "count=$(git tag -l 'v[0-9]*' | wc -l | tr -d ' ')" >> $GITHUB_OUTPUT

      - name: Fetch upstream tags # required for git describe to return a valid version and to preevnt androidGitVersion from crashing on a new fork
        if: steps.valid-tags.outputs.count == '0'
        run: |
          # TODO: should try to fetch tags from whereever this repo was forked from before fetching from official repo
          git remote add upstream https://github.com/hrydgard/ppsspp.git # fetching from official repo as a fallback
          git fetch --deepen=15000 --no-recurse-submodules --tags --force upstream || exit 0

      - name: Set up ccache for ${{ matrix.id }}
        uses: actions/cache@v5.0.4
        with:
          path: ${{ env.CCACHE_DIR }}
          key: ${{ runner.os }}-ccache-${{ matrix.id }}-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-ccache-${{ matrix.id }}-

      - name: Install dependencies
        shell: bash
        run: |
          #sudo su # Why sudo is needed?
          #sudo rm -rf /var/lib/apt/lists/lock # due to permisson issue, why there is such issue?

          # Debian-based
          #sudo apt-get update -y -qq
          #sudo apt-get install -q -y zsync patchelf xvfb strace
          #sudo apt-get install -q -y libstdc++6 ffmpeg libvulkan-dev libglew-dev libsdl2-ttf-dev libsdl2-dev libasound2-dev alsa-base alsa-utils libglu1-mesa pulseaudio linux-modules-extra-$(uname -r) #build-essential #plocate
          #sudo updatedb # to update locate database

          # Archlinux
          set -ex

          ARCH=$(uname -m)
          echo "ARCH=$ARCH" >> $GITHUB_ENV # Export ARCH to be reused on other steps
          EXTRA_PACKAGES="https://raw.githubusercontent.com/pkgforge-dev/Anylinux-AppImages/refs/heads/main/useful-tools/get-debloated-pkgs.sh"

          echo "Installing build dependencies..."
          echo "---------------------------------------------------------------"
          pacman -Syu --noconfirm \
            base-devel \
            curl \
            git \
            cmake \
            ninja \
            clang \
            ccache \
            lld \
            libxss \
            fontconfig \
            gcc-libs \
            glibc \
            libc++ \
            libc++abi \
            glew \
            sdl2_ttf \
            python \
            patchelf \
            pipewire \
            pipewire-audio \
            pulseaudio \
            pulseaudio-alsa \
            strace \
            wget \
            xorg-server-xvfb \
            zsync \
            vulkan-headers \
            alsa-lib sndio hidapi ibus jack libdecor libgl libpulse libusb \
            libx11 libxcursor libxext libxinerama libxkbcommon libxrandr libxrender libxss libxtst \
            wayland wayland-protocols
  
            echo "Installing debloated packages..."
            echo "---------------------------------------------------------------"
            wget --retry-connrefused --tries=30 "$EXTRA_PACKAGES" -O ./get-debloated-pkgs.sh
            chmod +x ./get-debloated-pkgs.sh
            ./get-debloated-pkgs.sh --add-mesa libxml2-mini opus-mini llvm-libs-nano

      - name: Build Release
        id: version
        env:
          CC: gcc #clang
          CXX: g++ #clang++
          CPPFLAGS: -fno-pie -no-pie -static -Wl,-no_pie -Wl,-rpath,'$ORIGIN/../lib' -Wl,--disable-new-dtags -Wl,--no-undefined #-fno-unwind-tables -fno-exceptions -fno-threadsafe-statics -fno-rtti # -static-libgcc -static-libstdc++ # -fno-plt # -fPIC -D_XOPEN_SOURCE=700 #-D_GNU_SOURCE # -fno-split-stack
          #CXXFLAGS: -stdlib=libc++ -lc++abi # clang only
          LDFLAGS: -no-pie -static-libgcc -static-libstdc++ #-fuse-ld=lld #-static
          USE_CCACHE: 1
          APPIMAGE_EXTRACT_AND_RUN: 1
        run: |
          echo "Building..."
          uname -m
          echo "tag=$(git describe --always)" >> $GITHUB_OUTPUT

          # Export ccache env var(s)
          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
          export CCACHE_SLOPPINESS=clang_index_store,ivfsoverlay,include_file_ctime,include_file_mtime,modules,system_headers,time_macros

          gcc --version
          g++ --version

          #clang --version
          #clang++ --version

          # Install SDL2 from AUR
          sed -i 's|EUID == 0|EUID == 69|g' /usr/bin/makepkg # because the docker image is ran as root this is needed lol
          #git clone https://aur.archlinux.org/sdl2.git
          mkdir sdl2
          pushd sdl2
          cat <<-'EOF' > ./PKGBUILD
          # Maintainer: HurricanePootis <hurricanepootis@protonmail.com>
          # Contributor: Sven-Hendrik Haase <svenstaro@archlinux.org>
          pkgname=sdl2
          pkgver=2.32.8
          pkgrel=1
          pkgdesc="A library for portable low-level access to a video framebuffer, audio output, mouse, and keyboard (Version 2)"
          arch=('x86_64')
          url="https://www.libsdl.org"
          license=('Zlib')
          provides=('sdl2-compat')
          conflicts=('sdl2-compat')
          depends=('glibc' 'libxext' 'libxrender' 'libx11' 'libgl' 'libxcursor' 'hidapi' 'libusb')
          makedepends=('alsa-lib' 'dbus' 'mesa' 'libpulse' 'libxrandr' 'libxinerama' 'wayland' 'libxkbcommon'
                       'wayland-protocols' 'ibus' 'libxss' 'cmake' 'jack' 'ninja' 'pipewire'
                       'libdecor' 'vulkan-driver' 'vulkan-headers' 'libsamplerate')
          optdepends=('alsa-lib: ALSA audio driver'
                      'libpulse: PulseAudio audio driver'
                      'jack: JACK audio driver'
                      'pipewire: PipeWire audio driver'
                      'libdecor: Wayland client decorations')
          source=("https://github.com/libsdl-org/SDL/releases/download/release-${pkgver}/SDL2-${pkgver}.tar.gz")
          sha512sums=('484c33638e7bd1002815bb1f6a47a292d1eaf0b963598dde65f4a3e077dfe75ee35b9ea4b3b767365b3ef4f613c4d69ce55b5e96675de562994344e83a978272')
          
          prepare(){
            cd "$srcdir/SDL2-$pkgver"
          }
          
          build() {
            CFLAGS+=" -ffat-lto-objects"
            cmake -S SDL2-${pkgver} -B build -G Ninja \
              -D CMAKE_INSTALL_PREFIX=/usr \
              -D SDL_STATIC=OFF \
              -D SDL_RPATH=OFF
            cmake --build build
          }
          
          package() {
            DESTDIR="${pkgdir}" cmake --install build
          
            # For some reason, this isn't named correctly and we have to fix it to reflect the actual staticlib name.
            sed -i "s/libSDL2\.a/libSDL2main.a/g" "$pkgdir"/usr/lib/cmake/SDL2/SDL2Targets-noconfig.cmake
          
            install -Dm644 SDL2-${pkgver}/LICENSE.txt "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
          }
          
          # vim:set ts=2 sw=2 et:
          EOF

          sed -i "s|x86_64|$ARCH|" ./PKGBUILD
          makepkg -f
          pacman --noconfirm -Rsndd sdl2-compat
          pacman --noconfirm -U *.pkg.tar.*
          popd
          # End of Install SDL2 from AUR

          # Build ppsspp
          #./b.sh --release --no-sdl2 --no-png
          mkdir -p build
          pushd build
          cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DUSE_SYSTEM_LIBSDL2=OFF -DUSE_SYSTEM_LIBPNG=OFF -DUSE_SYSTEM_FFMPEG=OFF -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache .. 
          make -j$(nproc)
          popd
          ccache -s -v

      - name: Create AppImage
        shell: bash
        run: |
          # Use dummy soundcard
          #sudo locate snd-dummy
          #sudo modprobe snd-dummy fake_buffer=0

          # Test for missing modules
          ldd ./build/PPSSPPSDL

          # Create AppImage package
          echo "Creating AppImage..."
          chmod +x ./build/PPSSPPSDL
          chmod +x ./scripts/makeappimage_64-bit.sh
          VERSION=$([[ ${GITHUB_REF_TYPE} == tag ]] && echo "$GITHUB_REF_NAME" || echo "${{ steps.version.outputs.tag }}")
          echo "Version = $VERSION"
          ./scripts/makeappimage_64-bit.sh "$VERSION"

      - name: Prepare artifacts
        run: |
          find . -name "PPSSPPSDL"
          find . -name "PPSSPP*.AppImage" -exec chmod +x '{}' \;
          find . -name "PPSSPP*.AppBundle" -exec chmod +x '{}' \;
          find . -name "PPSSPP*.zsync"
          mkdir artifacts
          if [ -e ./PPSSPP*.AppImage ]; then
            cp -a ./PPSSPP*.AppImage artifacts/
          fi
          if [ -e ./PPSSPP*.AppBundle ]; then
            cp -a ./PPSSPP*.AppBundle artifacts/
          fi
          if [ -e ./PPSSPP*.zsync ]; then
            cp ./PPSSPP*.zsync artifacts/
          fi

      - name: Upload artifacts
        uses: actions/upload-artifact@v7
        with:
          name: linux-${{ steps.version.outputs.tag }}-${{ matrix.id }} AppImage
          path: artifacts/

      - name: Upload release
        uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2.6.1
        if: github.ref_type == 'tag'
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          files: |
            artifacts/*.AppImage
            artifacts/*.AppImage.zsync