#!/usr/bin/env bash
# Compile le plugin, configure le serveur de dev, puis lance Hytale.
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$ROOT"

JAVA_HOME="/usr/lib/jvm/java-25-openjdk"
export JAVA_HOME
export PATH="$JAVA_HOME/bin:$PATH"

GRADLE_PROPS="$ROOT/gradle.properties"
HYTALE_PROPS="$ROOT/hytale.properties"
GRADLE_ARGS=()

read_property() {
  local file="$1"
  local key="$2"
  if [[ -f "$file" ]]; then
    grep -E "^${key}=" "$file" 2>/dev/null | tail -1 | cut -d= -f2- | tr -d '\r' || true
  fi
}

find_assets_zip() {
  local home="$1"
  [[ -z "$home" || ! -d "$home" ]] && return 1

  local candidates=(
    "$home/install/release/package/game/latest/Assets.zip"
    "$home/Assets.zip"
  )
  local path
  for path in "${candidates[@]}"; do
    if [[ -f "$path" && -s "$path" ]]; then
      echo "$path"
      return 0
    fi
  done

  find "$home" -name "Assets.zip" -size +1M 2>/dev/null | head -1
}

detect_hytale_home() {
  local candidates=(
    "${HYTALE_HOME:-}"
    "$(read_property "$HYTALE_PROPS" "hytale.home_path")"
    "$(read_property "$GRADLE_PROPS" "hytale.home_path")"
    "$HOME/.var/app/com.hypixel.HytaleLauncher/data/Hytale"
    "$HOME/.local/share/Hytale"
    "$HOME/AppData/Roaming/Hytale"
  )
  local candidate assets
  for candidate in "${candidates[@]}"; do
    [[ -z "$candidate" ]] && continue
    assets="$(find_assets_zip "$candidate" || true)"
    if [[ -n "$assets" ]]; then
      echo "$candidate"
      return 0
    fi
  done
  return 1
}

ensure_hytale_home_path() {
  local home
  home="$(detect_hytale_home || true)"

  if [[ -z "$home" ]]; then
    echo "Erreur: Assets.zip introuvable (fichier vide ou installation absente)." >&2
    echo "" >&2
    echo "Le serveur a besoin des assets du jeu Hytale. Configurez le chemin :" >&2
    echo "" >&2
    echo "  cp hytale.properties.example hytale.properties" >&2
    echo "  # puis éditez hytale.home_path=/chemin/vers/Hytale" >&2
    echo "" >&2
    echo "  Ou : export HYTALE_HOME=/chemin/vers/Hytale" >&2
    echo "  Ou : ajoutez hytale.home_path=... dans gradle.properties" >&2
    echo "" >&2
    echo "Le dossier doit contenir install/.../Assets.zip (via le launcher Hytale)." >&2
    exit 1
  fi

  local assets
  assets="$(find_assets_zip "$home")"
  echo "Hytale: $home"
  echo "Assets: $assets"

  GRADLE_ARGS+=("-Phytale.home_path=$home")

  if [[ ! -f "$HYTALE_PROPS" ]] || [[ "$(read_property "$HYTALE_PROPS" "hytale.home_path")" != "$home" ]]; then
    echo "hytale.home_path=$home" > "$HYTALE_PROPS"
    echo "Enregistré dans hytale.properties"
  fi
}

reset_devserver_if_needed() {
  if [[ "${HYTALE_RESET_DEVSERVER:-}" == "1" && -d "$ROOT/devserver" ]]; then
    echo "HYTALE_RESET_DEVSERVER=1 : suppression de devserver/"
    rm -rf "$ROOT/devserver"
  fi
}

run_gradle() {
  "$ROOT/gradlew" --stop 2>/dev/null || true
  "$ROOT/gradlew" "${GRADLE_ARGS[@]}" "$@"
}

if [[ ! -d "$JAVA_HOME" ]]; then
  echo "Erreur: JDK introuvable: $JAVA_HOME" >&2
  exit 1
fi

echo "JAVA_HOME=$JAVA_HOME ($("$JAVA_HOME/bin/java" -version 2>&1 | head -1))"
ensure_hytale_home_path
reset_devserver_if_needed

echo "Configuration du serveur de dev..."
run_gradle setupServer

echo "Compilation..."
run_gradle build

echo "Démarrage du serveur (logs: devserver/logs/)..."
exec "$ROOT/gradlew" "${GRADLE_ARGS[@]}" runServer