#!/bin/bash
# Baut ein Drag-and-drop-DMG: RemminaMac.app + Programme-Symlink.
# Nur Bordmittel (hdiutil). Usage: ./scripts/build-dmg.sh [version]
set -euo pipefail
VERSION="${1:-0.1.0}"
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
DIST="$ROOT/dist"
APP="$DIST/RemminaMac.app"
VOL="RemminaMac $VERSION"
RW_DMG="$DIST/.rw.RemminaMac-$VERSION.dmg"
FINAL_DMG="$DIST/RemminaMac-$VERSION-macos-arm64.dmg"

echo "[build-dmg] Version: $VERSION"
[ -d "$APP" ] || { echo "[build-dmg] $APP fehlt — erst ./scripts/build-app.sh $VERSION"; exit 1; }

rm -f "$RW_DMG" "$FINAL_DMG"
# 1. Beschreibbares DMG mit App + Programme-Link erzeugen
hdiutil create -volname "$VOL" -srcfolder "$APP" -ov -format UDRW "$RW_DMG" > /dev/null
MOUNT="$(hdiutil attach -readwrite -nobrowse "$RW_DMG" | grep -E '/Volumes/' | sed 's/.*\/Volumes\//\/Volumes\//')"
echo "[build-dmg] Gemountet: $MOUNT"
ln -s /Applications "$MOUNT/Programme" || true
ln -s /Applications "$MOUNT/Applications" || true
# Optionales Fenster-Layout (schlägt headless ggf. fehl — nicht fatal)
osascript <<OSA || true
tell application "Finder"
  tell disk "$VOL"
    open
    set current view of container window to icon view
    set toolbar visible of container window to false
    set the bounds of container window to {100, 100, 640, 420}
    delay 1
  end tell
end tell
OSA
hdiutil detach "$MOUNT" > /dev/null
# 2. Komprimieren + Checksumme
hdiutil convert "$RW_DMG" -format UDZO -imagekey zlib-level=9 -o "$FINAL_DMG" > /dev/null
rm -f "$RW_DMG"
shasum -a 256 "$FINAL_DMG" > "$FINAL_DMG.sha256"

echo "[build-dmg] Fertig:"
ls -lh "$FINAL_DMG" "$FINAL_DMG.sha256"
cat "$FINAL_DMG.sha256"
hdiutil imageinfo "$FINAL_DMG" 2>/dev/null | grep -E 'Format|Size' | head -n 4 || true