#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
ENV_DIR="$ROOT_DIR/tools/linux-build-env"
BUILD_DIR="$ROOT_DIR/build-linux"
DIST_DIR="$ROOT_DIR/dist-linux"
PACKAGE_ROOT="$DIST_DIR/chengnan-linux-x86_64"
APP_BIN="$PACKAGE_ROOT/bin/chengnan"
LIB_DIR="$PACKAGE_ROOT/lib"
PLUGIN_DIR="$PACKAGE_ROOT/plugins"
QT_CONF="$PACKAGE_ROOT/bin/qt.conf"
ARCHIVE="$DIST_DIR/chengnan-linux-x86_64.tar.gz"

"$ROOT_DIR/scripts/build-linux-binary.sh"

rm -rf "$PACKAGE_ROOT" "$ARCHIVE"
mkdir -p "$PACKAGE_ROOT/bin" "$LIB_DIR" "$PLUGIN_DIR"

"$ENV_DIR/bin/cmake" --install "$BUILD_DIR" --prefix "$PACKAGE_ROOT"

if [[ ! -x "$APP_BIN" ]]; then
  echo "[package] 未找到可执行文件：$APP_BIN" >&2
  exit 1
fi

copy_lib() {
  local lib="$1"
  if [[ -f "$lib" ]]; then
    cp -L -n "$lib" "$LIB_DIR/"
  fi
}

# 只打包项目内二进制环境中的依赖，避免把系统 /lib、/usr/lib 复制进制品。
while IFS= read -r lib; do
  case "$lib" in
    "$ENV_DIR"/*) copy_lib "$lib" ;;
  esac
done < <(LD_LIBRARY_PATH="$ENV_DIR/lib:${LD_LIBRARY_PATH:-}" ldd "$APP_BIN" | awk '/=>/ {print $3}' | sort -u)

# Qt GUI 程序运行需要平台插件；同时带上常用图片格式插件，保证 jpg/png 等格式可打开。
for subdir in platforms imageformats xcbglintegrations platformthemes styles iconengines; do
  if [[ -d "$ENV_DIR/plugins/$subdir" ]]; then
    mkdir -p "$PLUGIN_DIR/$subdir"
    cp -L "$ENV_DIR/plugins/$subdir"/*.so "$PLUGIN_DIR/$subdir/" 2>/dev/null || true
  fi
done

# 平台插件自身还有二级依赖，继续收集项目内环境中的 .so。
if [[ -d "$PLUGIN_DIR" ]]; then
  while IFS= read -r plugin; do
    while IFS= read -r lib; do
      case "$lib" in
        "$ENV_DIR"/*) copy_lib "$lib" ;;
      esac
    done < <(LD_LIBRARY_PATH="$ENV_DIR/lib:$LIB_DIR:${LD_LIBRARY_PATH:-}" ldd "$plugin" | awk '/=>/ {print $3}' | sort -u || true)
  done < <(find "$PLUGIN_DIR" -type f -name '*.so' | sort)
fi

cat > "$QT_CONF" <<'QTCFG'
[Paths]
Plugins = ../plugins
QTCFG

cat > "$PACKAGE_ROOT/run-chengnan.sh" <<'RUNNER'
#!/usr/bin/env bash
set -euo pipefail
APP_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
export LD_LIBRARY_PATH="$APP_DIR/lib:${LD_LIBRARY_PATH:-}"
export QT_PLUGIN_PATH="$APP_DIR/plugins"
exec "$APP_DIR/bin/chengnan" "$@"
RUNNER
chmod +x "$PACKAGE_ROOT/run-chengnan.sh"

if command -v patchelf >/dev/null 2>&1; then
  patchelf --set-rpath '$ORIGIN/../lib' "$APP_BIN" || true
elif [[ -x "$ENV_DIR/bin/patchelf" ]]; then
  "$ENV_DIR/bin/patchelf" --set-rpath '$ORIGIN/../lib' "$APP_BIN" || true
else
  echo "[package] 未找到 patchelf，制品可通过 run-chengnan.sh 设置 LD_LIBRARY_PATH 运行。"
fi

find "$PACKAGE_ROOT" -type f -name '*.so*' -exec chmod 0644 {} +
chmod +x "$APP_BIN"

tar -C "$DIST_DIR" -czf "$ARCHIVE" "$(basename "$PACKAGE_ROOT")"

if [[ ! -s "$ARCHIVE" ]]; then
  echo "[package] 打包失败：$ARCHIVE 为空或不存在" >&2
  exit 1
fi

sha256sum "$ARCHIVE" > "$ARCHIVE.sha256"

echo "[package] 发布包：$ARCHIVE"
echo "[package] 校验文件：$ARCHIVE.sha256"