#!/usr/bin/env bash
# 无头截图取证：装 → 启（可带启动参数）→ 截图 → 修正方向。
#
# 本环境没有 GUI，模拟器帧缓冲恒为竖屏；带 -txLandscape 1 时 app 会经
# requestGeometryUpdate 把「内容」转成横屏（设计基准 iPad Pro 13″ 1366×1024），
# 但帧缓冲仍是竖的，故截完用 sips 转回来，Read 出来才是设计稿的方向。
#
# 用法：
#   scripts/tx-shot.sh /tmp/shot.png                          # 只截当前画面
#   scripts/tx-shot.sh /tmp/shot.png -- -txUIFixture 1 -txLandscape 1   # 重启并带参数
set -euo pipefail

UDID="${TX_UDID:-2EA9055E-4557-4B20-82AF-56A68AC1D454}"
BUNDLE=ai.athom.terminalx
OUT="${1:?usage: tx-shot.sh <out.png> [-- <launch args>]}"
shift || true

if [ "${1:-}" = "--" ]; then
  shift
  APP=$(find ~/Library/Developer/Xcode/DerivedData/TerminalX-*/Build/Products/Debug-iphonesimulator \
        -maxdepth 1 -name TerminalX.app | head -1)
  [ -n "$APP" ] || { echo "TerminalX.app not found — build first" >&2; exit 1; }
  xcrun simctl terminate "$UDID" "$BUNDLE" 2>/dev/null || true
  xcrun simctl install "$UDID" "$APP"
  xcrun simctl launch "$UDID" "$BUNDLE" --args "$@" >/dev/null
  # 等 surface attach + OutputGate flush（tmux/多 pane 场景需要更久）
  sleep "${TX_SETTLE:-6}"
  LANDSCAPE=0
  for a in "$@"; do [ "$a" = "-txLandscape" ] && LANDSCAPE=1; done
else
  LANDSCAPE="${TX_LANDSCAPE:-1}"
fi

xcrun simctl io "$UDID" screenshot "$OUT" >/dev/null 2>&1
if [ "$LANDSCAPE" = "1" ]; then
  sips -r 90 "$OUT" >/dev/null    # landscapeRight 内容 → 正向
fi
sips -g pixelWidth -g pixelHeight "$OUT" | tail -2
echo "wrote $OUT"