#!/usr/bin/env bash
# Build offline Windows update package (USB stick / closed network).
# Includes runtime sources + vendor wheels/libusb/zadig + apply bat.
# Does NOT require internet on the Windows peer.
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

STAMP="$(date +%Y%m%d-%H%M%S)"
BUILD="$("$ROOT/.venv/bin/python" -c "from juc500_xfer.usb_link import XFER_BUILD; print(XFER_BUILD)" 2>/dev/null || echo unknown)"
OUT_DIR="${1:-$ROOT/dist-offline/juc500-offline-update-${STAMP}}"
ZIP_OUT="${2:-$ROOT/dist-offline/juc500-offline-update-${STAMP}.zip}"

mkdir -p "$OUT_DIR" "$ROOT/dist-offline"

echo "=== Offline Windows update package ==="
echo "XFER_BUILD=$BUILD"
echo "OUT_DIR=$OUT_DIR"

rm -rf "$OUT_DIR"
mkdir -p "$OUT_DIR/juc500_xfer/static" "$OUT_DIR/scripts" "$OUT_DIR/vendor/wheels" "$OUT_DIR/vendor/tools" "$OUT_DIR/docs"

# Runtime Python package (all modules — SmartKMLink lives in usb_link.py)
rsync -a --delete \
  --exclude '__pycache__' --exclude '*.py[cod]' --exclude '.DS_Store' \
  "$ROOT/juc500_xfer/" "$OUT_DIR/juc500_xfer/"

# Launchers / entry
for f in juc500_app.py start.bat start.sh start_win.sh start_both.sh requirements.txt README.md; do
  [[ -f "$ROOT/$f" ]] && cp -f "$ROOT/$f" "$OUT_DIR/$f"
done

# Scripts (bootstrap + apply)
rsync -a --exclude '__pycache__' "$ROOT/scripts/" "$OUT_DIR/scripts/"
cp -f "$ROOT/scripts/apply_offline_update.bat" "$OUT_DIR/apply_offline_update.bat"

# Vendor offline essentials
cp -f "$ROOT/vendor/libusb-1.0.dll" "$OUT_DIR/vendor/libusb-1.0.dll"
cp -f "$ROOT/vendor/wheels/"*.whl "$OUT_DIR/vendor/wheels/" 2>/dev/null || true
[[ -f "$ROOT/vendor/wheels/README.md" ]] && cp -f "$ROOT/vendor/wheels/README.md" "$OUT_DIR/vendor/wheels/"
[[ -f "$ROOT/vendor/README.md" ]] && cp -f "$ROOT/vendor/README.md" "$OUT_DIR/vendor/"
[[ -f "$ROOT/vendor/get-pip.py" ]] && cp -f "$ROOT/vendor/get-pip.py" "$OUT_DIR/vendor/"
if [[ -f "$ROOT/vendor/tools/zadig.exe" ]]; then
  cp -f "$ROOT/vendor/tools/zadig.exe" "$OUT_DIR/vendor/tools/zadig.exe"
fi

# Docs
for f in OFFLINE-WINDOWS.md WINDOWS.md WINDOWS-ACCESS-DENIED.md; do
  [[ -f "$ROOT/docs/$f" ]] && cp -f "$ROOT/docs/$f" "$OUT_DIR/docs/$f"
done

cat >"$OUT_DIR/BUILD.txt" <<EOF
JUC500 offline update
XFER_BUILD=$BUILD
created=$STAMP
SmartKMLink VID:PID=removed — JUC500 only (0711:7500 IF5)

Windows closed-network apply:
  1) Copy this folder (or unzip) to the peer PC via USB stick
  2) Close JUC500 GUI on Windows
  3) Double-click apply_offline_update.bat
     (default DEST=C:\\dev\\juc500 — or: apply_offline_update.bat D:\\path\\juc500)
  4) cd C:\\dev\\juc500 && start.bat
  5) GUI version line must show: $BUILD
  6) JUC500 IF5: vendor\\tools\\zadig.exe → 0711:7500 → MI_05 → WinUSB

Full fresh install (includes embeddable Python):
  ./scripts/make_windows_bundle.sh
EOF

cat >"$OUT_DIR/APPLY-WINDOWS.txt" <<'EOF'
폐쇄망 Windows 11 — 오프라인 업데이트
====================================

1. 이 폴더 전체를 USB로 Windows PC에 복사
2. JUC500 GUI 종료
3. apply_offline_update.bat 실행 (기본 대상 C:\dev\juc500)
4. C:\dev\juc500 에서 start.bat 실행
5. 상단 빌드 태그가 BUILD.txt 의 XFER_BUILD 와 같은지 확인
6. JUC500(0711:7500): vendor\tools\zadig.exe
   → Options → List All Devices → Smart Data Link → Interface 5 (MI_05) → WinUSB

인터넷·pip 설치 불필요. vendor\wheels · libusb · (선택) zadig 포함.
EOF

rm -f "$ZIP_OUT"
(
  cd "$OUT_DIR"
  zip -r -q "$ZIP_OUT" .
)

# Also drop a copy on Desktop for easy USB copy
DESK="$HOME/Desktop/juc500-offline-update-${STAMP}.zip"
cp -f "$ZIP_OUT" "$DESK"

bytes="$(wc -c <"$ZIP_OUT" | tr -d ' ')"
echo "완료: $ZIP_OUT ($bytes bytes)"
echo "Desktop: $DESK"
echo "폴더: $OUT_DIR"
echo "XFER_BUILD=$BUILD"