name: AppImage Build
on:
  push:
    branches:
      - dev
      - releases
      - 'release-[0-9]+.*'
    tags:
      - '[0-9]+.*'
  pull_request:
    branches:
      - dev
      - releases
      - 'release-[0-9]+.*'
  workflow_dispatch:

env:
  publish_pre_dev_labels: '[]'

jobs:
  build:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        build_type: [release, debug]
    steps:
      - name: Checkout source
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install dependencies
        run: |
          echo "Running apt update."
          sudo apt update
          echo "Installing dependencies with apt."
          DEBIAN_FRONTEND=noninteractive sudo apt install -y cmake libgtk-3-dev libgtkmm-3.0-dev liblensfun-dev librsvg2-dev liblcms2-dev libfftw3-dev libiptcdata0-dev libtiff5-dev libcanberra-gtk3-dev liblensfun-bin libexpat1-dev libbrotli-dev zlib1g-dev libinih-dev adwaita-icon-theme-full gettext libarchive-tools zstd libgif-dev libwebp-dev libwebpdemux2

      - name: Install makedeb
        run: |
          echo "Installing makedeb..."
          curl -Ss -qgb "" -fLC - --retry 3 --retry-delay 3 -o makedeb.deb \
            "https://github.com/makedeb/makedeb/releases/download/v16.1.0-beta1/makedeb-beta_16.1.0-beta1_amd64_focal.deb"
          DEBIAN_FRONTEND=noninteractive sudo dpkg -i makedeb.deb

      - name: Install libjxl
        working-directory: tools/makedeb
        run: |
          echo "Building and installing libjxl..."
          makedeb -si --no-confirm -p PKGBUILD.libjxl

      - name: Install Exiv2
        run: |
          EXIV2_VERSION='v0.28.1'
          echo "Cloning Exiv2 $EXIV2_VERSION."
          git clone --depth 1 --branch "$EXIV2_VERSION" https://github.com/Exiv2/exiv2.git ext/exiv2

          echo "Configuring build."
          mkdir ext/exiv2/build
          cd ext/exiv2/build
          cmake -DCMAKE_BUILD_TYPE=Release -DEXIV2_ENABLE_BMFF=ON ..

          echo "Building and installing."
          sudo make -j$(nproc) install

      - name: Install Librsvg required min. version
      # Required min. version is not available for Ubuntu 20.04 LTS (but is for 22.04 LTS) so needs to be built manually
        run: |
          LIBRSVG2_VERSION='2.52.2'
          echo "Cloning Librsvg2 $LIBRSVG2_VERSION."
          git clone --depth 1 --branch "$LIBRSVG2_VERSION" https://gitlab.gnome.org/GNOME/librsvg.git ext/librsvg2

          echo "Installing required dependencies with apt."
          DEBIAN_FRONTEND=noninteractive sudo apt install -y rustc cargo gtk-doc-tools libgirepository1.0-dev

          echo "Updating PATH."
          export PATH="$PATH:/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0"

          echo "Configuring build."
          cd ext/librsvg2
          sh autogen.sh

          echo "Building and installing."
          sudo make install

      - name: Configure build
        run: |
          export REF_NAME_FILTERED="$(echo '${{github.ref_name}}' | sed 's/[^A-z0-9_.-]//g')"

          echo "Setting cache suffix."
          if [ '${{github.ref_type}}' == 'tag' ]; then
            export CACHE_SUFFIX=""
          else
            export CACHE_SUFFIX="5-$REF_NAME_FILTERED"
          fi
          export CACHE_SUFFIX="$CACHE_SUFFIX-AppImage"
          echo "Cache suffix is '$CACHE_SUFFIX'."

          echo "Making build directory."
          mkdir build
          echo "Changing working directory to the build directory."
          cd build

          echo "Running CMake configure."
          cmake \
            -DCMAKE_BUILD_TYPE='${{matrix.build_type}}'  \
            -DCACHE_NAME_SUFFIX="$CACHE_SUFFIX" \
            -DPROC_TARGET_NUMBER="1" \
            -DBUILD_BUNDLE="ON" \
            -DBUNDLE_BASE_INSTALL_DIR="/" \
            -DOPTION_OMP="ON" \
            -DWITH_LTO="OFF" \
            -DWITH_PROF="OFF" \
            -DWITH_SAN="OFF" \
            -DWITH_SYSTEM_KLT="OFF" \
            -DCMAKE_INSTALL_PREFIX=/usr \
            -DLENSFUNDBDIR="../share/lensfun/version_1" \
            ..

          echo "Recording filtered ref name."
          echo "REF_NAME_FILTERED=$REF_NAME_FILTERED" >> $GITHUB_ENV

      - name: Build RawTherapee
        working-directory: ./build
        run: |
          echo "Running make install."
          make -j$(nproc) install DESTDIR=AppDir/usr/bin
          echo "Moving usr/bin/share to usr/share."
          mv AppDir/usr/bin/share AppDir/usr/

      - name: Include Lensfun
        run: |
          echo "Patching lensfun-update-data script."
          sudo sed -i 's/HTTPError\(, ValueError\)/URLError\1/' $(which lensfun-update-data)
          echo "Updating Lensfun database."
          lensfun-update-data
          echo "Creating Lensfun directory in the build directory."
          mkdir -p build/AppDir/usr/share/lensfun
          echo "Copying Lensfun database to the build directory."
          cp -R ~/.local/share/lensfun/updates/* build/AppDir/usr/share/lensfun/

      - name: Include Adwaita icon theme (partial)
        run: |
          mkdir build/AppDir/usr/bin/icons/Adwaita
          icons_dir=('actions' 'devices' 'mimetypes' 'places' 'status' 'ui' 'devices')
          for dir in "${icons_dir[@]}"; do
            find_res=$(find /usr/share/icons/Adwaita -name "${dir}" -type d)
            if [ -z "$find_res" ]
            then
              echo "-Warning: Icons folder '"${dir}"' not found in Adwaita theme."
            else
              new_dir=($(echo "$find_res" | awk -F/ '{print $(NF-1)"/"$NF}'))
              for d in "${new_dir[@]}"; do
                echo "-Copying '"${d}"' into 'AppDir/usr/bin/icons/Adwaita'."
                mkdir -p "build/AppDir/usr/bin/icons/Adwaita/${d}"
                cp -R "/usr/share/icons/Adwaita/${d}/." "build/AppDir/usr/bin/icons/Adwaita/${d}"
              done
            fi
          done
          echo "-Copying 'index.theme' into 'AppDir/usr/bin/icons/Adwaita'."
          cp /usr/share/icons/Adwaita/index.theme build/AppDir/usr/bin/icons/Adwaita

      - name: Restore AppImage tools from cache
        id: appimage-tools-cache
        uses: actions/cache@v4
        with:
          key: appimage-tools-1
          path: |
            ./build/linuxdeploy-x86_64.AppImage
            ./build/linuxdeploy-plugin-gtk.sh

      - name: Download AppImage tools
        if: ${{steps.appimage-tools-cache.outputs.cache-hit != 'true'}}
        working-directory: ./build
        run: |
          echo "Downloading linuxdeploy."
          curl --location 'https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage' > linuxdeploy-x86_64.AppImage
          echo "Downloading GTK plugin for linuxdeploy."
          curl --location 'https://raw.githubusercontent.com/linuxdeploy/linuxdeploy-plugin-gtk/master/linuxdeploy-plugin-gtk.sh' \
            | sed 's/^\(export GTK_THEME\)/#\1/' \
            > linuxdeploy-plugin-gtk.sh
          echo "Setting execute bit on all AppImage tools."
          chmod u+x linuxdeploy-*

      - name: Package AppImage
        working-directory: ./build
        run: |
          echo "LD_LIBRARY_PATH is '$LD_LIBRARY_PATH'. Adding /usr/local/lib."
          export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"

          echo "Creating artifact name."
          if [ '${{github.ref_type}}' == 'tag' ]; then
            ARTIFACT_NAME="RawTherapee_${REF_NAME_FILTERED}_${{matrix.build_type}}"
          else
            echo "Getting RawTherapee version."
            export VERSION="$(grep -m 1 '^Version: .*$' 'AboutThisBuild.txt' | sed 's/^Version: \(.\+\)$/\1/')"
            echo "Version is '$VERSION'."
            FILTERED_VERSION="$(echo "$VERSION" | sed 's/[^A-z0-9_.-]//g')"
            ARTIFACT_NAME="RawTherapee_${REF_NAME_FILTERED}_${FILTERED_VERSION}_${{matrix.build_type}}"
          fi
          echo "Artifact name is '$ARTIFACT_NAME'."

          echo "Generating AppImage file name."
          export OUTPUT="$ARTIFACT_NAME.AppImage"
          echo "AppImage file name will be '$OUTPUT'."

          echo "Packaging AppImage."
          ./linuxdeploy-x86_64.AppImage \
            --appimage-extract-and-run \
            --appdir AppDir \
            --plugin gtk \
            --output appimage

          echo "Recording artifact name."
          echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> $GITHUB_ENV

      - name: Upload artifacts
        uses: actions/upload-artifact@v4
        with:
          name: ${{env.ARTIFACT_NAME}}.AppImage
          path: ${{github.workspace}}/build/${{env.ARTIFACT_NAME}}.AppImage

      - name: Prepare for publishing
        if: ${{github.ref_type == 'tag' || github.ref_name == 'dev'}}
        run: |
          echo "Setting publish name."
          PUBLISH_NAME="RawTherapee_${REF_NAME_FILTERED}_${{matrix.build_type}}"
          echo "Publish name is '$PUBLISH_NAME'."

          echo "Renaming AppImage."
          cp "build/$ARTIFACT_NAME.AppImage" "$PUBLISH_NAME.AppImage"

          echo "Creating version file."
          cp "build/AboutThisBuild.txt" "$PUBLISH_NAME-AboutThisBuild.txt"

          echo "Recording publish name."
          echo "PUBLISH_NAME=$PUBLISH_NAME" >> $GITHUB_ENV

      - name: Publish artifacts
        uses: softprops/action-gh-release@v2
        if: ${{github.ref_type == 'tag' || github.ref_name == 'dev'}}
        with:
          tag_name: nightly-github-actions
          files: |
            ${{env.PUBLISH_NAME}}.AppImage
            ${{env.PUBLISH_NAME}}-AboutThisBuild.txt

      - name: Prepare for publishing pre-dev
        id: prepare-publish-pre-dev
        if: ${{github.event_name == 'pull_request' && contains(fromJSON(env.publish_pre_dev_labels), github.event.pull_request.head.label)}}
        run: |
          echo "Making ref name."
          REF_NAME_FILTERED="$(echo '${{github.event.pull_request.head.label}}' | tr ':' '_' | sed 's/[^A-z0-9_.-]//g')"
          echo "Ref name is '$REF_NAME_FILTERED'."

          echo "Setting publish name."
          PUBLISH_NAME="RawTherapee_${REF_NAME_FILTERED}_${{matrix.build_type}}"
          echo "Publish name is '$PUBLISH_NAME'."

          echo "Renaming AppImage."
          cp "build/$ARTIFACT_NAME.AppImage" "$PUBLISH_NAME.AppImage"

          echo "Creating version file."
          cp "build/AboutThisBuild.txt" "$PUBLISH_NAME-AppImage-AboutThisBuild.txt"

          echo "Recording publish name."
          echo "PUBLISH_NAME=$PUBLISH_NAME" >> $GITHUB_ENV

      - name: Publish pre-dev artifacts
        uses: softprops/action-gh-release@v2
        if: ${{steps.prepare-publish-pre-dev.outcome == 'success'}}
        with:
          tag_name: pre-dev-github-actions
          repository: Beep6581/RawTherapee
          files: |
            ${{env.PUBLISH_NAME}}.AppImage
            ${{env.PUBLISH_NAME}}-AppImage-AboutThisBuild.txt