#!/usr/bin/env bash
# Erzeugt aus dem gepatchten Ghostty-Template eine eigenständige, pro-Projekt
# konfigurierte macOS-App: eigene Bundle-ID (eigenes Dock-Icon + ⌘-Tab),
# eigenes Icon, eigene Ghostty-Config (working-directory, command, Farben, Font).
#
# Beispiel:
#   ./make-ghostty-app.sh misc \
#       --icon ~/claude-projects/misc/misc-icon.png \
#       --workdir ~/claude-projects/misc \
#       --command ~/.local/bin/claude \
#       --bg 2b0a3d --fg ffd000 --font "Courier New" --font-size 18
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TEMPLATE="$SCRIPT_DIR/ghostty-template/Ghostty.app"
PB=/usr/libexec/PlistBuddy

# --- Defaults ---
NAME=""
BUNDLE_ID=""
ICON=""
WORKDIR=""
COMMAND_LINE=""
THEME=""
BG=""
FG=""
FONT=""
FONT_SIZE=""
OUT_DIR="$HOME/Applications"
CFG_BASE="$HOME/.config-ghostty"

usage() { grep '^#' "$0" | sed 's/^# \?//'; exit 1; }

[[ $# -ge 1 ]] || usage
NAME="$1"; shift
while [[ $# -gt 0 ]]; do
  case "$1" in
    --id)        BUNDLE_ID="$2"; shift 2;;
    --icon)      ICON="$2"; shift 2;;
    --workdir)   WORKDIR="$2"; shift 2;;
    --command)   COMMAND_LINE="$2"; shift 2;;
    --theme)     THEME="$2"; shift 2;;
    --bg)        BG="$2"; shift 2;;
    --fg)        FG="$2"; shift 2;;
    --font)      FONT="$2"; shift 2;;
    --font-size) FONT_SIZE="$2"; shift 2;;
    --out)       OUT_DIR="$2"; shift 2;;
    *) echo "Unbekannte Option: $1" >&2; usage;;
  esac
done

[[ -d "$TEMPLATE" ]] || { echo "Template fehlt: $TEMPLATE (erst rebuild-template.sh laufen lassen)" >&2; exit 1; }
: "${BUNDLE_ID:=com.mitchellh.ghostty.$NAME}"
APP="$OUT_DIR/Ghostty-$NAME.app"
CFG="$CFG_BASE/$NAME"

# Pfade expandieren (~)
WORKDIR="${WORKDIR/#\~/$HOME}"
ICON="${ICON/#\~/$HOME}"
COMMAND_LINE="${COMMAND_LINE/#\~/$HOME}"

echo ">> Baue $APP (id=$BUNDLE_ID)"

# --- 1. Template kopieren ---
mkdir -p "$OUT_DIR"
pkill -9 -f "$APP/Contents/MacOS" 2>/dev/null || true
sleep 1
rm -rf "$APP"
cp -R "$TEMPLATE" "$APP"

# --- 2. Icon (PNG -> .icns für statisch + PNG fürs Dock-Tile) ---
if [[ -n "$ICON" ]]; then
  [[ -f "$ICON" ]] || { echo "Icon nicht gefunden: $ICON" >&2; exit 1; }
  TMP_ISET="$(mktemp -d)/icon.iconset"; mkdir -p "$TMP_ISET"
  for s in 16 32 128 256 512; do
    sips -z $s $s       "$ICON" --out "$TMP_ISET/icon_${s}x${s}.png"    >/dev/null
    sips -z $((s*2)) $((s*2)) "$ICON" --out "$TMP_ISET/icon_${s}x${s}@2x.png" >/dev/null
  done
  iconutil -c icns "$TMP_ISET" -o "$APP/Contents/Resources/Ghostty.icns"
  cp "$ICON" "$APP/Contents/Resources/DockIcon.png"   # laufendes Dock-Tile (Plugin-Patch)
  rm -rf "$(dirname "$TMP_ISET")"
fi

# --- 3. Info.plist: Identität + Config-Pfad ---
PL="$APP/Contents/Info.plist"
$PB -c "Set :CFBundleIdentifier $BUNDLE_ID" "$PL"
$PB -c "Set :CFBundleName Ghostty-$NAME" "$PL" 2>/dev/null || $PB -c "Add :CFBundleName string Ghostty-$NAME" "$PL"
$PB -c "Delete :CFBundleIconName" "$PL" 2>/dev/null || true   # sonst gewinnt Assets.car (Geist)
$PB -c "Delete :LSEnvironment" "$PL" 2>/dev/null || true
$PB -c "Add :LSEnvironment dict" "$PL"
$PB -c "Add :LSEnvironment:XDG_CONFIG_HOME string $CFG" "$PL"

# --- 4. Ghostty-Config schreiben ---
mkdir -p "$CFG/ghostty"
{
  [[ -n "$WORKDIR" ]]      && echo "working-directory = $WORKDIR"
  [[ -n "$COMMAND_LINE" ]] && echo "command = $COMMAND_LINE"
  [[ -n "$COMMAND_LINE" ]] && echo "wait-after-command = true"
  [[ -n "$THEME" ]]        && echo "theme = $THEME"
  [[ -n "$BG" ]]           && echo "background = $BG"
  [[ -n "$FG" ]]           && echo "foreground = $FG"
  [[ -n "$FONT" ]]         && echo "font-family = $FONT"
  [[ -n "$FONT_SIZE" ]]    && echo "font-size = $FONT_SIZE"
} > "$CFG/ghostty/config"

# --- 5. ad-hoc signieren ---
codesign --force --deep --sign - "$APP" >/dev/null

echo ">> Fertig: $APP"
echo "   Config: $CFG/ghostty/config"
echo "   Starten: open -n \"$APP\""