#!/usr/bin/env bash
# Pack the Metin2 asset tree into build/export/assets.zip for the mobile builds.
#
# The APK/IPA is code-only (assets are gitignored and can't go in res://). The
# zip is mounted at runtime by AssetPack.ensure() -> res://assets/... and read
# through godot::FileAccess (all C++ asset IO now goes through it).
#
#   ./pack-assets.sh          # bake index + zip -0 (store, no compression)
#
# Deploy:
#   Android:  adb push build/export/assets.zip /sdcard/Android/data/org.internal.mtgodotpoc/files/
#   iOS:      ios-deploy --bundle_id org.internal.mtgodotpoc --upload build/export/assets.zip --to Documents/
#   desktop:  not needed (loose assets/ is used directly)
set -euo pipefail
cd "$(dirname "$0")"

GODOT="${GODOT:-godot}"
OUT="build/export/assets.zip"

if [ ! -d assets ]; then
	echo "no ./assets — nothing to pack" >&2
	exit 1
fi

# 1. refresh the AssetResolver index (baked; device can't std::filesystem-scan a pack)
"$GODOT" --headless --path project --script bake_asset_index.gd || {
	echo "asset_index bake failed" >&2; exit 1; }

# 2. zip -0 (store): DDS/gr2 barely compress and we want fast random access from
#    FileAccess; -X drops extra file attrs. Paths stay assets/... bgm/... so they
#    mount as res://assets/... res://bgm/...
mkdir -p build/export
rm -f "$OUT"
zip -0 -r -X "$OUT" assets bgm \
	-x '*/.git/*' -x '*.DS_Store' -x 'assets/.gdignore'

SZ=$(du -h "$OUT" | cut -f1)
N=$(unzip -l "$OUT" | tail -1 | awk '{print $2}')
echo
echo ">> $OUT  ($SZ, $N entries)"
echo ">> Android:  adb push $OUT /sdcard/Android/data/org.internal.mtgodotpoc/files/"