/** 联调阶段：上传功能默认通过，使用固定文件地址 */
export const DEFAULT_UPLOAD_FILE_URL =
  "https://s1.aigei.com/prevfiles/6f2754563be2491bad7c957904cd7d2a.jpg?e=2051020800&token=P7S2Xpzfz11vAkASLTkfHN7Fw-oOZBecqeJaxypL:CR60zg7VKDp-jUWyYls_rdvyQMM=";

/**
 * 解析上传结果 ID / URL（不调用真实上传接口）
 * @param {Array|object} [_files]
 * @returns {string}
 */
export function resolveUploadFileId(_files) {
  return DEFAULT_UPLOAD_FILE_URL;
}

/** 多附件：序列化为 JSON 数组字符串，与后端格式保持一致 */
export function resolveUploadFileIds(files) {
  if (!files?.length) {
    return undefined;
  }
  const valid = files
    .filter((file) => file?.url)
    .map((file) => ({
      url: file.url,
      uid: file.uid || undefined,
      name: file.name || file.fileName || "附件",
      status: file.status || "done",
    }));
  if (!valid.length) {
    return DEFAULT_UPLOAD_FILE_URL;
  }
  return JSON.stringify(valid);
}

export function parseUploadFileList(urls, defaultName = "附件.pdf") {
  if (!urls) {
    return [];
  }
  const raw = String(urls).trim();

  // JSON 数组字符串：如 '[{"url":"...","uid":"...","name":"...","status":"done"}]'
  if (raw.startsWith("[") && raw.endsWith("]")) {
    try {
      const parsed = JSON.parse(raw);
      if (Array.isArray(parsed)) {
        return parsed
          .filter((item) => item?.url)
          .map((item) => ({
            name: item.name || `${defaultName.replace(".pdf", "")}1`,
            fileName: item.fileName || item.name || `${defaultName.replace(".pdf", "")}1`,
            url: item.url,
            uid: item.uid || undefined,
            status: item.status || "done",
          }));
      }
    } catch (_) {
      // JSON 解析失败，回退到逗号分隔处理
    }
  }

  // 旧格式：逗号分隔的 URL 字符串
  return raw
    .split(",")
    .map((url) => url.trim())
    .filter(Boolean)
    .map((url, index) => ({
      name: `${defaultName.replace(".pdf", "")}${index + 1}.pdf`,
      fileName: `${defaultName.replace(".pdf", "")}${index + 1}.pdf`,
      url,
    }));
}

export function mockUploadFileList(name = "附件.pdf") {
  return [{ name, fileName: name, url: DEFAULT_UPLOAD_FILE_URL }];
}