#!/usr/bin/env bash
# 在 Windows 侧安装 矮人要塞 免费版 + DFHack（经 WSL 的 /mnt/c 操作，免管理员权限）
#
#   scripts/install-df.sh            安装/校验
#   scripts/install-df.sh --download 重新下载缺的文件
set -euo pipefail

WIN_USER="${WIN_USER:-23518}"
ROOT="/mnt/c/Users/${WIN_USER}/DwarfFortress"
DF_ZIP="df_53_16_win.zip"
DFHACK_ZIP="dfhack-53.16-r2-Windows-64bit.zip"
DF_URL="https://www.bay12games.com/dwarves/${DF_ZIP}"
DFHACK_URL="https://github.com/DFHack/dfhack/releases/download/53.16-r2/${DFHACK_ZIP}"

mkdir -p "$ROOT"
cd "$ROOT"

download() {
  local url="$1" out="$2"
  echo "== 下载 $out"
  for _ in $(seq 1 300); do
    wget -c -q --timeout=30 --tries=2 -O "$out" "$url" && return 0
    sleep 5
  done
  echo "下载失败：$url" >&2
  return 1
}

if [[ "${1:-}" == "--download" ]]; then
  [[ -s "$DF_ZIP" ]] || download "$DF_URL" "$DF_ZIP"
  [[ -s "$DFHACK_ZIP" ]] || download "$DFHACK_URL" "$DFHACK_ZIP"
fi

for f in "$DF_ZIP" "$DFHACK_ZIP"; do
  [[ -s "$f" ]] || { echo "缺少 $f（先跑 --download）" >&2; exit 1; }
  unzip -t "$f" >/dev/null || { echo "$f 已损坏" >&2; exit 1; }
done

echo "== 解压游戏本体"
DF_DIR="$(unzip -Z1 "$DF_ZIP" | head -1 | cut -d/ -f1)"
if [[ ! -d "$DF_DIR" ]]; then
  unzip -q -o "$DF_ZIP"
fi
echo "   游戏目录：$ROOT/$DF_DIR"

echo "== 解压 DFHack（覆盖进游戏目录）"
unzip -q -o "$DFHACK_ZIP" -d "$DF_DIR"

echo "== 校验"
ls -1 "$DF_DIR" | head -20
if [[ -f "$DF_DIR/Dwarf Fortress.exe" ]]; then
  echo "   ✓ 启动器存在：Dwarf Fortress.exe"
else
  echo "   ✗ 未找到 Dwarf Fortress.exe" >&2
fi
if [[ -d "$DF_DIR/dfhack-config" && -d "$DF_DIR/hack" ]]; then
  echo "   ✓ DFHack 已就位（hack/ + dfhack-config/）"
else
  echo "   ✗ DFHack 目录缺失" >&2
fi
echo "$ROOT/$DF_DIR"