export function createInMemoryHealthDocumentStore() {
  const rowsByUser = new Map();
  let nextId = 1;

  return {
    async list(userId, { limit = 50 } = {}) {
      const rows = rowsByUser.get(String(userId)) ?? [];
      return rows.slice(0, limit);
    },
    async insert(userId, document) {
      if (document?.confirmed !== true) {
        const error = Object.assign(new Error('报告必须确认归档后才能保存'), {
          code: 'health_document_unconfirmed',
        });
        throw error;
      }
      const row = {
        id: nextId++,
        userId: String(userId),
        assetId: document.assetId ?? null,
        imageUrl: document.imageUrl ?? null,
        source: document.source ?? 'manual',
        notes: document.notes ?? null,
        docType: document.docType ?? 'other',
        reportDate: document.reportDate ?? null,
        institution: document.institution ?? null,
        ocrText: document.ocrText ?? null,
        extractedMetrics: document.extractedMetrics ?? [],
        extractionStatus: document.extractionStatus ?? 'pending',
        createdAt: document.createdAt ?? Date.now(),
      };
      const list = rowsByUser.get(row.userId) ?? [];
      list.unshift(row);
      rowsByUser.set(row.userId, list);
      return row;
    },
  };
}

export function parseHealthAssetIdFromUrl(imageUrl = '') {
  const match = String(imageUrl).match(/\/mindspace\/v1\/assets\/([^/?#]+)/);
  return match ? decodeURIComponent(match[1]) : null;
}