export type ProtocolSourceAttachmentMeta = {
  label: string
  files: Array<Record<string, unknown>>
}

function normalizeAttachmentFiles(raw: unknown): Array<Record<string, unknown>> {
  if (!Array.isArray(raw)) return []
  return raw.filter((item) => item && typeof item === 'object') as Array<Record<string, unknown>>
}

/** 按来源返回协议级附件标签与文件列表（细胞存储=孕妇健康调查表，科研捐赠=传染病检测报告） */
export function getSourceProtocolAttachment(
  row: Record<string, unknown>
): ProtocolSourceAttachmentMeta {
  const source = String(row.sourceType || 'cell_storage').trim()
  if (source === 'research_donation') {
    return {
      label: '传染病检测报告',
      files: normalizeAttachmentFiles(row.infectiousDiseaseReportAttachmentFiles)
    }
  }
  return {
    label: '孕妇健康调查表',
    files: normalizeAttachmentFiles(row.healthSurveyAttachmentFiles)
  }
}