#!/usr/bin/env bash
# Terrain-Textur-Sync (Karte t_ab408127): terrain_arrays.res + Thumbnails aus
# dem Client-Klon in den Map-Editor spiegeln (analog tools/sync_models.sh).
# Die CC0-Texturen leben EINMAL im Client-Repo; der Editor lädt sie via
# res://assets/textures/terrain/ (Muster: models/-Ordner mit .gdignore).
#
# Aufruf: aus dem Map-Editor-Repo  →  tools/sync_terrain_tex.sh [--check]
set -u
MODE="sync"
if [ "${1:-}" = "--check" ]; then MODE="check"; fi

DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
CLIENT="${SCOPEDVR_CLIENT_DIR:-}"
for k in "$DIR/../scopedvr-client" "$DIR/../../scopedvr-client"; do
  [ -d "$k/assets/textures/terrain" ] && CLIENT="$(cd "$k" && pwd)" && break
done
if [ -z "$CLIENT" ]; then
  echo "FEHLER: Client-Klon mit assets/textures/terrain nicht gefunden."
  echo "        SCOPEDVR_CLIENT_DIR=/pfad/zum/client setzen oder Klon nach ../scopedvr-client."
  exit 1
fi

DST="$DIR/assets/textures/terrain"
mkdir -p "$DST"
touch "$DST/.gdignore"   # Godot soll die Rohdateien NICHT importieren

changed=0
for f in terrain_arrays.res terrain_thumbs.png terrain_thumbs.json; do
  if ! cmp -s "$CLIENT/assets/textures/terrain/$f" "$DST/$f" 2>/dev/null; then
    if [ "$MODE" = "check" ]; then
      echo "ABWEICHUNG: $f"
      changed=1
    else
      cp -f "$CLIENT/assets/textures/terrain/$f" "$DST/$f"
      echo "kopiert: $f"
      changed=1
    fi
  fi
done

if [ "$MODE" = "check" ]; then
  [ "$changed" -eq 0 ] && echo "--check: terrain-Texturen aktuell (Exit 0)." && exit 0
  echo "--check: terrain-Texturen weichen ab (Exit 1)."
  exit 1
fi
echo "Sync fertig: $DST"
exit 0