name: 'Test Build'

on:
  workflow_dispatch:

jobs:
  build-tauri:
    permissions:
      contents: write
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: 'ubuntu-24.04'
            args: ''

    runs-on: ${{ matrix.platform }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: lts/*
          cache: 'npm'

      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy

      - name: Rust cache
        uses: swatinem/rust-cache@v2
        with:
          workspaces: './src-tauri -> target'

      - name: Install system dependencies (Ubuntu)
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libwebkit2gtk-4.1-0 \
            libwebkit2gtk-4.1-dev \
            libjavascriptcoregtk-4.1-0 \
            libjavascriptcoregtk-4.1-dev \
            gir1.2-javascriptcoregtk-4.1 \
            gir1.2-webkit2-4.1 \
            libappindicator3-dev \
            librsvg2-dev \
            patchelf \
            build-essential \
            curl \
            wget \
            file \
            libssl-dev \
            libgtk-3-dev

      - name: Install frontend dependencies
        run: npm ci

      - name: Build Tauri app
        run: npm run tauri build
        env:
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}

      - name: Strip bundled GTK/WebKit/GLib stack, rely on the host's instead
        run: |
          set -euo pipefail
          cd src-tauri/target/release/bundle/appimage
          APPIMAGE=$(ls *.AppImage)
          chmod +x "$APPIMAGE"
          ./"$APPIMAGE" --appimage-extract >/dev/null

          LDCONFIG_CACHE=$(ldconfig -p)
          resolve_lib_path() {
            awk -v lib="$1" '$1==lib {print $NF; exit}' <<< "$LDCONFIG_CACHE"
          }

          # WebKitGTK bundled by the AppImage tooling is pinned to whatever the
          # build image ships, and drifts out of sync with newer host systems
          # (freezes on old bundled WebKit, EGL/DMABUF crashes on some newer
          # ones). The only configuration that's tested clean is deferring the
          # whole GTK/WebKit/GLib stack to the host's own matched libraries, so
          # we compute the full dependency closure from the host side (whatever
          # is actually installed here) and strip every bundled copy that's
          # also part of that closure.
          declare -A EXCLUDE
          for seed in libwebkit2gtk-4.1.so.0 libglib-2.0.so.0 libgio-2.0.so.0 libgobject-2.0.so.0 libgmodule-2.0.so.0; do
            EXCLUDE[$seed]=1
          done

          changed=1
          while [ "$changed" -eq 1 ]; do
            changed=0
            for lib in "${!EXCLUDE[@]}"; do
              hostpath=$(resolve_lib_path "$lib")
              [ -n "$hostpath" ] && [ -e "$hostpath" ] || continue
              deps=$(ldd "$hostpath" 2>/dev/null | grep -oE '[a-zA-Z0-9._+-]+\.so[0-9.]*' | sort -u) || true
              for d in $deps; do
                if [ -z "${EXCLUDE[$d]:-}" ]; then
                  if find squashfs-root/usr/lib -maxdepth 1 -name "${d}*" 2>/dev/null | grep -q .; then
                    EXCLUDE[$d]=1
                    changed=1
                  fi
                fi
              done
            done
          done

          echo "Excluding ${#EXCLUDE[@]} bundled libraries, relying on the host's instead:"
          for lib in "${!EXCLUDE[@]}"; do echo "  $lib"; done | sort

          for lib in "${!EXCLUDE[@]}"; do
            find squashfs-root/usr/lib -maxdepth 1 -name "${lib%.so*}.so*" -delete
          done

          curl -sSL -o appimagetool "https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage"
          chmod +x appimagetool
          rm -f "$APPIMAGE"
          ARCH=x86_64 ./appimagetool --appimage-extract-and-run squashfs-root "$APPIMAGE"
          rm -rf squashfs-root

      - name: Upload AppImage artifact
        uses: actions/upload-artifact@v4
        with:
          name: appimage
          path: src-tauri/target/release/bundle/appimage/*.AppImage
          if-no-files-found: error