function basename(path) {
  if (!path) return "";
  const normalized = String(path).replace(/\\/g, "/");
  const idx = normalized.lastIndexOf("/");
  return idx >= 0 ? normalized.slice(idx + 1) : normalized;
}

/**
 * 上传单个文件到统一文件服务
 * POST /main/file/uploadFile?module=...
 * 表单字段名：multiPartFile
 *
 * 选图后立刻调用此接口，调用方负责在 UI 上跟踪每张图的状态。
 */
export function uploadAttachment(filePath, moduleName = "hr_attendance") {
  const uploadUrl = `${Vue.prototype.apiUrl}/main/file/uploadFile?module=${encodeURIComponent(
    moduleName
  )}`;
  return new Promise((resolve, reject) => {
    if (!filePath) {
      reject(new Error("缺少文件路径"));
      return;
    }
    const token = uni.getStorageSync("token");
    const userInfo = uni.getStorageSync("userInfo") || {};
    uni.uploadFile({
      url: uploadUrl,
      filePath,
      name: "multiPartFile",
      header: token
        ? {
            "zoomwin-token": token,
            Authorization: token,
            "zoomwin-sid": userInfo.sessionId || "",
          }
        : { platform: "wxapp" },
      success: (response) => {
        let body = response.data;
        if (typeof body === "string") {
          try {
            body = JSON.parse(body);
          } catch (error) {
            reject(new Error("文件上传响应解析失败"));
            return;
          }
        }
        if (response.statusCode < 200 || response.statusCode >= 300) {
          reject(new Error((body && body.message) || `文件上传失败（${response.statusCode}）`));
          return;
        }
        if (body && body.code !== undefined && Number(body.code) !== 0) {
          reject(new Error(body.message || "文件上传失败"));
          return;
        }
        const data = body && body.data;
        if (!data || data.id === undefined || data.id === null) {
          reject(new Error("文件上传响应缺少主键"));
          return;
        }
        resolve(data);
      },
      fail: (error) => reject(new Error(error.errMsg || "文件上传失败")),
    });
  });
}

export { basename as attachmentBasename };