#!/bin/bash
# After build.sh: the LGPL-only libvlc-all as org.videolan.android:libvlc-all:3.7.6-lgpl (without VLC's
# Lua scripts, which are GPL and unused by NovArc), the licence files of every component built into
# libVLC, and the complete corresponding source (LGPL-2.1 section 6). Output: $ROOT/out
# Run in a throwaway container as root (the build user owns some folders), e.g.
#   docker run --rm -u 0 -v ~/builds/libvlc-lgpl:/build -e ROOT=/build registry.videolan.org/vlc-debian-android:20260610055743 bash /build/package.sh
set -euo pipefail
ROOT="${ROOT:-$HOME/builds/libvlc-lgpl}"
[ -f /.dockerenv ] && git config --global --add safe.directory "*"
OUT="$ROOT/out"
SRC="$ROOT/vlc-android"
VER=3.7.6-lgpl
rm -rf "$OUT" && mkdir -p "$OUT/m2/org/videolan/android/libvlc-all/$VER" "$OUT/licenses" "$OUT/source"

# 1. The package, without assets/lua, under its own version.
python3 - "$ROOT/m2/org/videolan/android/libvlc-all/3.7.6" "$OUT/m2/org/videolan/android/libvlc-all/$VER" "$VER" <<'PY'
import sys, zipfile, pathlib
src, dst, ver = pathlib.Path(sys.argv[1]), pathlib.Path(sys.argv[2]), sys.argv[3]
with zipfile.ZipFile(src / 'libvlc-all-3.7.6.aar') as zin, zipfile.ZipFile(dst / f'libvlc-all-{ver}.aar', 'w', zipfile.ZIP_DEFLATED) as zout:
    for info in zin.infolist():
        if info.filename.startswith('assets/lua/'):
            continue
        zout.writestr(info, zin.read(info.filename))
pom = (src / 'libvlc-all-3.7.6.pom').read_text()
pom = pom.replace('<version>3.7.6</version>', f'<version>{ver}</version>', 1)
(dst / f'libvlc-all-{ver}.pom').write_text(pom)
PY

# 2. Licence files of every component VideoLAN's build compiled in (the contrib source trees, arm64; the
#    same set is built for every ABI). A package that keeps its terms in its README (libjpeg's "LEGAL
#    ISSUES") gets its README. One with nothing at all stops the packaging.
CONTRIB="$SRC/libvlcjni/vlc/contrib/contrib-android-aarch64-linux-android"
for dir in "$CONTRIB"/*/; do
  pkg=$(basename "$dir")
  # Build output, not a package.
  case "$pkg" in lib | bin | include | share) continue ;; esac
  files=$(find "$dir" -maxdepth 2 -type f \( -iname 'COPYING*' -o -iname 'LICENSE*' -o -iname 'LICENCE*' -o -iname 'COPYRIGHT*' -o -iname 'NOTICE*' -o -iname 'AUTHORS' \) | sort)
  [ -z "$files" ] && files=$(find "$dir" -maxdepth 1 -type f -iname 'README*' | sort)
  [ -z "$files" ] && { echo "no licence file in contrib $pkg"; exit 1; }
  mkdir -p "$OUT/licenses/$pkg"
  for f in $files; do cp "$f" "$OUT/licenses/$pkg/$(echo "${f#$dir}" | tr '/' '_')"; done
done
mkdir -p "$OUT/licenses/vlc" "$OUT/licenses/libvlcjni" "$OUT/licenses/libc++" "$OUT/licenses/hrtf"
cp "$SRC/libvlcjni/vlc/COPYING.LIB" "$SRC/libvlcjni/vlc/COPYING" "$SRC/libvlcjni/vlc/AUTHORS" "$OUT/licenses/vlc/"
cp "$SRC/libvlcjni/LICENSE" "$OUT/licenses/libvlcjni/LICENSE"
cp "$SRC/libvlcjni/libvlc/COPYING.LIB" "$OUT/licenses/libvlcjni/COPYING.LIB"
# The NDK's C++ library (libc++_shared.so), LLVM's licence.
cp "$ROOT/extra-licenses/libc++-LICENSE.TXT" "$OUT/licenses/libc++/LICENSE.TXT"
# The spatial audio filter's data file (assets/hrtfs), whose notice is inside it.
strings -n 20 "$SRC/libvlcjni/vlc/share/hrtfs/dodeca_and_7channel_3DSL_HRTF.sofa" | sed -n '/Copyright/,/Boston\|www.gnu.org/p' > "$OUT/licenses/hrtf/NOTICE"
[ -s "$OUT/licenses/hrtf/NOTICE" ] || { echo "no HRTF notice"; exit 1; }
cp "$SRC/libvlcjni/vlc/COPYING.LIB" "$OUT/licenses/hrtf/COPYING.LIB"
# Which version of each component (from the source tarballs it was built from).
ls "$SRC/libvlcjni/vlc/contrib/tarballs" > "$OUT/licenses/TARBALLS.txt"

# 3. The complete corresponding source: vlc-android at its tag, libvlcjni and VLC at the exact commits,
#    the contrib source tarballs (in two archives: each object in the download bucket is at most 300 MiB),
#    NovArc's one change to the build script, and the build commands.
git -C "$SRC" archive --format=tar --prefix=vlc-android/ HEAD | xz -T4 > "$OUT/source/vlc-android-libvlc-3.7.6.tar.xz"
git -C "$SRC/libvlcjni" archive --format=tar --prefix=libvlcjni/ HEAD | xz -T4 > "$OUT/source/libvlcjni-$(git -C "$SRC/libvlcjni" rev-parse --short HEAD).tar.xz"
git -C "$SRC/libvlcjni/vlc" archive --format=tar --prefix=vlc/ HEAD | xz -T4 > "$OUT/source/vlc-$(git -C "$SRC/libvlcjni/vlc" rev-parse --short HEAD).tar.xz"
(
  cd "$SRC/libvlcjni/vlc/contrib"
  ls -S tarballs > /tmp/all
  : > /tmp/p1; : > /tmp/p2; s1=0; s2=0
  while read -r f; do
    sz=$(stat -c %s "tarballs/$f")
    if [ "$s1" -le "$s2" ]; then echo "tarballs/$f" >> /tmp/p1; s1=$((s1 + sz)); else echo "tarballs/$f" >> /tmp/p2; s2=$((s2 + sz)); fi
  done < /tmp/all
  tar -cf - -T /tmp/p1 | xz -T4 > "$OUT/source/vlc-contrib-tarballs.part1.tar.xz"
  tar -cf - -T /tmp/p2 | xz -T4 > "$OUT/source/vlc-contrib-tarballs.part2.tar.xz"
)
cp "$ROOT/libvlcjni-novarc.patch" "$ROOT/patch-blacklist.sh" "$ROOT/license-audit.py" "$ROOT/build.sh" "$ROOT/package.sh" "$OUT/source/"
{
  echo "libVLC for NovArc IPTV Player (Android), LGPL-only build"
  echo
  echo "vlc-android:  $(git -C "$SRC" describe --tags) $(git -C "$SRC" rev-parse HEAD)"
  echo "libvlcjni:    $(git -C "$SRC/libvlcjni" rev-parse HEAD)"
  echo "vlc:          $(git -C "$SRC/libvlcjni/vlc" rev-parse HEAD)"
  echo "Images:       registry.videolan.org/vlc-debian-android:20260610055743 (arm64, x86_64)"
  echo "              registry.videolan.org/vlc-debian-android-3.0:20260701183656 (armeabi-v7a, x86)"
  echo
  echo "How it's built (build.sh does all of it):"
  echo " - VideoLAN's own build: vlc-android's buildsystem/compile.sh -l -a <abi> -m2 <repo> release --license a"
  echo "   (VLC's contribs built from these source tarballs in their LGPLv2 + ad-clauses mode), then"
  echo "   GRADLE_ABI=ALL ./gradlew -p libvlcjni publishToMavenLocal."
  echo " - NovArc's one change (libvlcjni-novarc.patch, made by patch-blacklist.sh): 16 VLC modules whose source"
  echo "   is GPL rather than LGPL are added to the module list VideoLAN's script already leaves out: lua,"
  echo "   access_realrtsp, headphone_channel_mixer, mono, dummy, file_logger, syslog, vod_rtsp, stream_out_rtp,"
  echo "   stream_out_cycle, dolby_surround_decoder, hqdn3d, rotate, deinterlace, i420_rgb_mmx, zvbi."
  echo "   license-audit.py lists the licence of every VLC source file and header compiled into a build (from"
  echo "   the build's dependency files): none is GPL in this one."
  echo "   VLC's and the components' own source is unchanged."
  echo " - package.sh: assets/lua/ (VLC's GPL Lua scripts) removed from the AAR; version 3.7.6-lgpl."
  echo
  echo "To rebuild (or build your own libvlc.so to replace the app's):"
  echo " 1. Extract vlc-android-libvlc-3.7.6.tar.xz here (vlc-android/), libvlcjni-*.tar.xz into"
  echo "    vlc-android/ (vlc-android/libvlcjni/), vlc-*.tar.xz into vlc-android/libvlcjni/ (…/libvlcjni/vlc/),"
  echo "    and both vlc-contrib-tarballs.part*.tar.xz into vlc-android/libvlcjni/vlc/contrib/ (they hold"
  echo "    contrib/tarballs/, so no download is needed)."
  echo " 2. Make each tree a git repository (git init; git add -A; git commit -m src) — VideoLAN's scripts"
  echo "    expect them — and apply libvlcjni-novarc.patch in vlc-android/libvlcjni (git apply)."
  echo " 3. Run build.sh (Docker with the images above): it builds the four ABIs and publishes the AAR."
} > "$OUT/source/README.txt"
(cd "$OUT" && find m2 -type f -exec sha256sum {} \; > SHA256SUMS && sha256sum source/* >> SHA256SUMS)
chmod -R a+rwX "$OUT"
du -sh "$OUT"/* | sort -h