#!/usr/bin/env bash
# Compila o app desktop (Tauri) e deixa os pacotes em dist-gui/.
#
#   scripts/build-gui.sh linux     # AppImage e .deb
#   scripts/build-gui.sh windows   # instalador NSIS, compilado a partir do Linux
#   scripts/build-gui.sh windows-docker   # o mesmo, num container, sem instalar nada
#
# O updater do Tauri assina cada pacote (createUpdaterArtifacts: true), então
# TAURI_SIGNING_PRIVATE_KEY e TAURI_SIGNING_PRIVATE_KEY_PASSWORD precisam estar
# no ambiente. Sem eles no ambiente, e com uma chave local em ~/.tauri (gerada
# por `tauri signer generate`), este script a carrega sozinho.
#
# O Windows usa cargo-xwin (SDK do Windows baixado na hora) e o NSIS; o Tauri
# documenta isso como compilação cruzada experimental. Precisa de: nsis, lld,
# llvm, clang e `cargo install cargo-xwin`. O .msi não sai daqui (o WiX é só do
# Windows).
set -euo pipefail

cd "$(dirname "$0")/.."
platform=${1:?uso: build-gui.sh <linux|linux-x86_64|linux-aarch64|windows|windows-docker>}
tauri() { npx --yes @tauri-apps/cli@2 "$@"; }

if [ -z "${TAURI_SIGNING_PRIVATE_KEY:-}" ] && [ -f "$HOME/.tauri/guara-updater.key" ]; then
  export TAURI_SIGNING_PRIVATE_KEY="$(cat "$HOME/.tauri/guara-updater.key")"
  [ -f "$HOME/.tauri/guara-updater.pass" ] && export TAURI_SIGNING_PRIVATE_KEY_PASSWORD="$(cat "$HOME/.tauri/guara-updater.pass")"
fi
: "${TAURI_SIGNING_PRIVATE_KEY:?defina TAURI_SIGNING_PRIVATE_KEY (ou gere a chave local com 'tauri signer generate')}"

if [ "$platform" = windows-docker ]; then
  docker volume create guara-cargo >/dev/null
  docker volume create guara-rustup >/dev/null
  mkdir -p dist-gui
  exec docker run --rm -v "$PWD":/src -v guara-cargo:/root/.cargo -v guara-rustup:/root/.rustup \
    -w /src -e HOST_UID="$(id -u)" -e HOST_GID="$(id -g)" \
    -e TAURI_SIGNING_PRIVATE_KEY -e TAURI_SIGNING_PRIVATE_KEY_PASSWORD \
    ubuntu:24.04 bash -c '
      set -e
      export DEBIAN_FRONTEND=noninteractive
      apt-get update -qq
      apt-get install -y -qq curl ca-certificates build-essential pkg-config nsis lld llvm clang nodejs npm unzip >/dev/null
      [ -x /root/.cargo/bin/rustup ] || curl -fsSL https://sh.rustup.rs | sh -s -- -y --profile minimal >/dev/null
      export PATH=/root/.cargo/bin:$PATH
      command -v cargo-xwin >/dev/null || cargo install cargo-xwin --locked
      scripts/build-gui.sh windows
      chown -R "$HOST_UID:$HOST_GID" dist-gui apps/gui/src-tauri/target 2>/dev/null || true'
fi

rm -rf dist-gui
mkdir -p dist-gui
cd apps/gui/src-tauri

[ -f icons/icon.ico ] || tauri icon icons/source.png -o icons

tauri_blob_cache="$HOME/.cache/tauri"
if [ -d /opt/hostedtoolcache ] && [ -w /opt/hostedtoolcache ]; then
  tauri_blob_cache="/opt/hostedtoolcache/tauri-tools"
fi
mkdir -p "$tauri_blob_cache" "$HOME/.cache/tauri"

fetch_cached_tool() {
  local name=$1 url=$2 patch_elf=${3:-0}
  local cached="$tauri_blob_cache/$name"
  if [ ! -s "$cached" ]; then
    local tmp="$cached.tmp.$$"
    curl -fsSL "$url" -o "$tmp"
    if [ "$patch_elf" = 1 ]; then
      dd if=/dev/zero of="$tmp" bs=1 count=3 seek=8 conv=notrunc 2>/dev/null
    fi
    chmod +x "$tmp"
    mv -f "$tmp" "$cached"
  fi
  if [ "$cached" != "$HOME/.cache/tauri/$name" ]; then
    cp -f "$cached" "$HOME/.cache/tauri/$name"
    chmod +x "$HOME/.cache/tauri/$name"
  fi
}

case "$platform" in
  linux|linux-aarch64)
    bundle="${CARGO_TARGET_DIR:-target}/release/bundle"
    rm -rf "$bundle/appimage" "$bundle/deb"
    tauri build --bundles appimage,deb
    cp "$bundle"/appimage/*.AppImage "$bundle"/deb/*.deb ../../../dist-gui/
    cp "$bundle"/appimage/*.AppImage.sig ../../../dist-gui/ 2>/dev/null || true
    ;;
  linux-x86_64)
    if [ "$(uname -m)" = x86_64 ]; then
      bundle="${CARGO_TARGET_DIR:-target}/release/bundle"
      rm -rf "$bundle/appimage" "$bundle/deb"
      tauri build --bundles appimage,deb
    else
      rustup target add x86_64-unknown-linux-gnu >/dev/null
      mkdir -p /tmp/x86_64-cross-tools "$HOME/.cache/tauri"
      cat >/tmp/x86_64-cross-tools/ldd <<'EOF'
#!/usr/bin/env bash
exec qemu-x86_64 /lib64/ld-linux-x86-64.so.2 --list "$@"
EOF
      chmod +x /tmp/x86_64-cross-tools/ldd
      ln -sf /usr/bin/x86_64-linux-gnu-strip /tmp/x86_64-cross-tools/strip
      for tool_rel in glib-2.0/gio-querymodules gdk-pixbuf-2.0/gdk-pixbuf-query-loaders libgtk-3-0t64/gtk-query-immodules-3.0 libgtk-3-0/gtk-query-immodules-3.0; do
        if [ -x "/usr/lib/x86_64-linux-gnu/$tool_rel" ]; then
          tname=$(basename "$tool_rel")
          printf '#!/usr/bin/env bash\nexec qemu-x86_64 "/usr/lib/x86_64-linux-gnu/%s" "$@"\n' "$tool_rel" >"/tmp/x86_64-cross-tools/$tname"
          chmod +x "/tmp/x86_64-cross-tools/$tname"
        fi
      done
      fetch_cached_tool "linuxdeploy-07333c6-aarch64.AppImage" \
        "https://github.com/tauri-apps/binary-releases/releases/download/linuxdeploy-07333c6/linuxdeploy-aarch64.AppImage" 1
      fetch_cached_tool "linuxdeploy-plugin-appimage.AppImage" \
        "https://github.com/linuxdeploy/linuxdeploy-plugin-appimage/releases/download/continuous/linuxdeploy-plugin-appimage-aarch64.AppImage" 1
      fetch_cached_tool "runtime-x86_64" \
        "https://github.com/AppImage/type2-runtime/releases/download/continuous/runtime-x86_64" 0
      cat >"$HOME/.cache/tauri/linuxdeploy-07333c6-x86_64.AppImage" <<'EOF'
#!/usr/bin/env bash
export ARCH=x86_64
export NO_STRIP=true
export APPIMAGE_EXTRACT_AND_RUN=1
export LDAI_RUNTIME_FILE="$HOME/.cache/tauri/runtime-x86_64"
export LD_GTK_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu
export DEB_HOST_MULTIARCH=x86_64-linux-gnu
export PKG_CONFIG_ALLOW_CROSS=1
export PKG_CONFIG_LIBDIR=/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/share/pkgconfig
export PATH="/tmp/x86_64-cross-tools:$PATH"
exec "$HOME/.cache/tauri/linuxdeploy-07333c6-aarch64.AppImage" "$@"
EOF
      chmod +x "$HOME/.cache/tauri/linuxdeploy-07333c6-x86_64.AppImage"
      export PKG_CONFIG_ALLOW_CROSS=1
      export PKG_CONFIG_LIBDIR=/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/share/pkgconfig
      export CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-linux-gnu-gcc
      export CC_x86_64_unknown_linux_gnu=x86_64-linux-gnu-gcc
      export CXX_x86_64_unknown_linux_gnu=x86_64-linux-gnu-g++
      bundle="${CARGO_TARGET_DIR:-target}/x86_64-unknown-linux-gnu/release/bundle"
      rm -rf "$bundle/appimage" "$bundle/deb"
      tauri build --target x86_64-unknown-linux-gnu --bundles appimage,deb
    fi
    cp "$bundle"/appimage/*.AppImage "$bundle"/deb/*.deb ../../../dist-gui/
    cp "$bundle"/appimage/*.AppImage.sig ../../../dist-gui/ 2>/dev/null || true
    ;;
  windows)
    rustup target add x86_64-pc-windows-msvc >/dev/null
    bundle="${CARGO_TARGET_DIR:-target}/x86_64-pc-windows-msvc/release/bundle/nsis"
    rm -rf "$bundle"
    tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc --bundles nsis
    cp "$bundle"/*-setup.exe ../../../dist-gui/
    cp "$bundle"/*-setup.exe.sig ../../../dist-gui/ 2>/dev/null || true
    ;;
  *) echo "plataforma desconhecida: $platform" >&2; exit 2 ;;
esac

ls -1 ../../../dist-gui