#!/usr/bin/env bash
set -euo pipefail

repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
package_version="${WO_PACKAGE_VERSION:-$(sed -n 's/^version = "\([^"]*\)"/\1/p' "$repo_root/Cargo.toml" | head -n1)}"
package_arch="$(dpkg --print-architecture)"
build_root="${WO_DEB_BUILD_ROOT:-$repo_root/target/ubuntu-package}"
stage="$build_root/root"
deb="$build_root/wo_${package_version}_${package_arch}.deb"

for tool in cargo bun dpkg dpkg-deb; do
  command -v "$tool" >/dev/null 2>&1 || {
    echo "Missing build tool: $tool" >&2
    exit 1
  }
done

if [[ ! -d "$repo_root/comraw" ]]; then
  echo "Missing comraw source tree at $repo_root/comraw" >&2
  exit 1
fi

echo "Building Wo release binaries"
(cd "$repo_root" && cargo build --release --locked --bins)

echo "Building Electron app and native DMA-BUF addon"
(cd "$repo_root/electron" && bun install --frozen-lockfile && bun run build && bun run build-native)

echo "Building comraw"
(cd "$repo_root/comraw" && bun install --frozen-lockfile)
rm -rf "$repo_root/comraw/node_modules/@wl-wo/wo-types"
mkdir -p "$repo_root/comraw/node_modules/@wl-wo"
cp -a "$repo_root/electron/types" "$repo_root/comraw/node_modules/@wl-wo/wo-types"
(cd "$repo_root/comraw" && bun run build)

rm -rf "$stage"
install -d "$stage/DEBIAN" "$stage/usr/bin" "$stage/usr/lib/wo/bin" \
  "$stage/usr/lib/wo/electron" "$stage/usr/lib/wo/electron-runtime" \
  "$stage/usr/lib/wo/comraw" "$stage/usr/share/wayland-sessions" \
  "$stage/usr/share/xdg-desktop-portal/portals" "$stage/usr/share/dbus-1/services" \
  "$stage/usr/share/doc/wo"

install -m755 "$repo_root/target/release/wo" "$stage/usr/lib/wo/bin/wo"
install -m755 "$repo_root/target/release/wo-portal" "$stage/usr/bin/wo-portal"
install -m755 "$repo_root/target/release/xdg-desktop-portal-wo" "$stage/usr/bin/xdg-desktop-portal-wo"

install -m755 "$repo_root/electron/node_modules/electron/dist/electron" \
  "$stage/usr/lib/wo/electron-runtime/electron"
cp -a "$repo_root/electron/node_modules/electron/dist/." "$stage/usr/lib/wo/electron-runtime/"
cp -a "$repo_root/electron/dist" "$stage/usr/lib/wo/electron/"
cp -a "$repo_root/electron/native" "$stage/usr/lib/wo/electron/"
cp -a "$repo_root/comraw/dist" "$stage/usr/lib/wo/comraw/"

cat > "$stage/usr/bin/wo" <<'EOF'
#!/bin/sh
export WO_DATA_DIR=/usr/lib/wo
export WO_ELECTRON_PATH=/usr/lib/wo/electron-runtime/electron
export WO_ELECTRON_APP_DIR=/usr/lib/wo/electron
exec /usr/lib/wo/bin/wo "$@"
EOF
chmod 755 "$stage/usr/bin/wo"

install -m644 "$repo_root/packaging/wayland-sessions/wo.desktop" \
  "$stage/usr/share/wayland-sessions/wo.desktop"
install -m644 "$repo_root/packaging/portals/wo.portal" \
  "$stage/usr/share/xdg-desktop-portal/portals/wo.portal"
install -m644 "$repo_root/packaging/dbus-services/org.freedesktop.impl.portal.desktop.wo.service" \
  "$stage/usr/share/dbus-1/services/org.freedesktop.impl.portal.desktop.wo.service"
install -m644 "$repo_root/config.example.toml" "$stage/usr/share/doc/wo/config.example.toml"

sed -e "s/@VERSION@/$package_version/" -e "s/@ARCH@/$package_arch/" \
  "$repo_root/packaging/ubuntu/control.in" > "$stage/DEBIAN/control"
dpkg-deb --build --root-owner-group "$stage" "$deb"
echo "Built $deb"