#!/bin/bash
# Package pre-built chromium-fourier artifacts into a .deb.
#
# Chromium can't be compiled natively on any available aarch64 runner
# (clang version wall — chromium requires its internal clang fork).
# The build is cross-compiled on CT 220 (data, x86_64 Ryzen 7).
# This script expects the build artifacts to exist at BUILD_DIR
# (default: fetched from CT 220 via SSH).
#
# Sibling Arch package: ../../arch/chromium-fourier/PKGBUILD
set -euo pipefail

PKGVER=148.0.7778.178
EPOCH=1
PKGREL=1
ARCH=arm64

HERE=$(dirname "$(readlink -f "$0")")
export SOURCE_DATE_EPOCH=1779854400  # 2026-05-24 09:00 UTC

BUILD_DIR="${BUILD_DIR:-}"

work=$(mktemp -d)
trap "rm -rf $work" EXIT

if [ -z "$BUILD_DIR" ]; then
    echo "BUILD_DIR not set — fetching artifacts from CT 220 on data..."
    BUILD_DIR="$work/artifacts"
    mkdir -p "$BUILD_DIR"
    ssh root@data "pct exec 220 -- tar -cf - -C /build/chromium/src/out/Default \
        chrome chrome_crashpad_handler \
        libEGL.so libGLESv2.so libvk_swiftshader.so libvulkan.so.1 \
        vk_swiftshader_icd.json \
        chrome_100_percent.pak chrome_200_percent.pak resources.pak \
        v8_context_snapshot.bin snapshot_blob.bin icudtl.dat \
        locales/" | tar -xf - -C "$BUILD_DIR"
fi

ROOT="$work/pkgroot"

install -Dm755 "$BUILD_DIR/chrome"                   "$ROOT/usr/lib/chromium/chromium"
install -Dm755 "$BUILD_DIR/chrome_crashpad_handler"  "$ROOT/usr/lib/chromium/chrome_crashpad_handler"

for so in libEGL.so libGLESv2.so libvk_swiftshader.so libvulkan.so.1; do
    [ -f "$BUILD_DIR/$so" ] && install -Dm755 "$BUILD_DIR/$so" "$ROOT/usr/lib/chromium/$so"
done

for icd in "$BUILD_DIR"/*_icd.json; do
    [ -f "$icd" ] && install -Dm644 "$icd" "$ROOT/usr/lib/chromium/$(basename "$icd")"
done

for f in chrome_100_percent.pak chrome_200_percent.pak resources.pak \
         v8_context_snapshot.bin snapshot_blob.bin icudtl.dat; do
    [ -f "$BUILD_DIR/$f" ] && install -Dm644 "$BUILD_DIR/$f" "$ROOT/usr/lib/chromium/$f"
done

if [ -d "$BUILD_DIR/locales" ]; then
    install -dm755 "$ROOT/usr/lib/chromium/locales"
    cp -r "$BUILD_DIR/locales/"* "$ROOT/usr/lib/chromium/locales/"
fi

install -dm755 "$ROOT/usr/bin"
cat > "$ROOT/usr/bin/chromium-fourier" <<'LAUNCHER'
#!/bin/bash
USER_HANDLES_VULKAN=0
for arg in "$@"; do
  case "$arg" in
    --use-vulkan*|--enable-features=*Vulkan*|--disable-features=*Vulkan*|--use-angle=vulkan*)
      USER_HANDLES_VULKAN=1
      break
      ;;
  esac
done

vulkan_default=()
if [ "$USER_HANDLES_VULKAN" = 0 ]; then
  vulkan_default=(--disable-features=Vulkan)
fi

exec /usr/lib/chromium/chromium \
  --ozone-platform=wayland \
  --use-gl=angle --use-angle=gles \
  --enable-features=AcceleratedVideoDecoder \
  "${vulkan_default[@]}" \
  "$@"
LAUNCHER
chmod 0755 "$ROOT/usr/bin/chromium-fourier"

mkdir -p "$ROOT/usr/share/doc/chromium-fourier" "$ROOT/DEBIAN"
install -Dm644 "$HERE/debian/copyright" \
    "$ROOT/usr/share/doc/chromium-fourier/copyright"
install -Dm644 "$HERE/debian/changelog" \
    "$ROOT/usr/share/doc/chromium-fourier/changelog.Debian"
gzip -9 -n "$ROOT/usr/share/doc/chromium-fourier/changelog.Debian"

ISIZE=$(du -sk "$ROOT" | awk '{print $1}')
cat > "$ROOT/DEBIAN/control" <<EOF
Package: chromium-fourier
Version: ${EPOCH}:${PKGVER}-${PKGREL}
Section: web
Priority: optional
Architecture: ${ARCH}
Installed-Size: ${ISIZE}
Depends: libasound2,
         libatk-bridge2.0-0,
         libatk1.0-0,
         libcairo2,
         libcups2,
         libdbus-1-3,
         libdrm2,
         libexpat1,
         libfontconfig1,
         libfreetype6,
         libgbm1,
         libglib2.0-0,
         libgtk-3-0,
         libnspr4,
         libnss3,
         libpango-1.0-0,
         libpulse0,
         libva2,
         libwayland-client0,
         libx11-6,
         libxcb1,
         libxkbcommon0,
         libpipewire-0.3-0,
         fonts-liberation,
         v4l-utils
Provides: www-browser
Conflicts: chromium
Maintainer: Markus Fritsche <mfritsche@reauktion.de>
Homepage: https://www.chromium.org/
Description: Chromium with V4L2 HW video decode for Rockchip (Wayland + mainline)
 Chromium ${PKGVER} with three patches enabling V4L2 hardware video
 decoding on mainline Linux / Wayland for Rockchip SoCs (RK3566 hantro,
 RK3588 VDPU381).
 .
 Cross-compiled from x86_64 using chromium's bundled clang (upstream
 LLVM cannot compile chromium). Runtime target is aarch64.
 .
 Patches: enable-v4l2-decoder-default, wayland-allow-direct-egl-gles2,
 nv12-external-oes-on-modifier-external-only.
 .
 Launcher at /usr/bin/chromium-fourier defaults to Wayland + ANGLE/GLES
 with Vulkan disabled (panvk on RK3566 breaks V4L2 dispatch).
EOF

DEB_OUT="chromium-fourier_${EPOCH}%3a${PKGVER}-${PKGREL}_${ARCH}.deb"
dpkg-deb --root-owner-group --build "$ROOT" "$HERE/$DEB_OUT"
echo "built: $HERE/$DEB_OUT"