import assert from 'node:assert/strict';
import test from 'node:test';
import { createInMemoryHealthObservationStore } from './health-observation-store.mjs';
import { createInMemoryHealthObservationDraftStore } from './health-observation-draft-store.mjs';
import { createHealthObservationService } from './health-observation-service.mjs';
import { createHealthObservationDraftService } from './health-observation-draft-service.mjs';
import { normalizeHealthDocumentOcr, parseHealthDocumentOcrJson } from './health-document-ocr.mjs';
import { buildHealthAgentContext, wrapHealthAgentUserMessage } from './health-agent-context.mjs';
import { hashHealthImageBuffer } from './health-image-hash.mjs';

test('hashHealthImageBuffer is stable for same bytes', () => {
  const buffer = Buffer.from('health-image-bytes');
  assert.equal(hashHealthImageBuffer(buffer), hashHealthImageBuffer(buffer));
});

test('draft service dedups by sourceRef and commits after confirm', async () => {
  const observationStore = createInMemoryHealthObservationStore();
  const draftStore = createInMemoryHealthObservationDraftStore();
  const observationService = createHealthObservationService({ store: observationStore });
  const draftService = createHealthObservationDraftService({ draftStore, observationService });
  const userId = 'u1';
  const sourceRef = 'sha256-deadbeef';

  const extraction = {
    ok: true,
    metricSet: 'heart_rate',
    values: { hr: 72 },
    lowConfidence: false,
  };

  const draft1 = await draftService.saveExtractionDraft(userId, {
    extraction,
    sourceRef,
    channel: 'h5',
  });
  const draft2 = await draftService.saveExtractionDraft(userId, {
    extraction,
    sourceRef,
    channel: 'h5',
  });
  assert.equal(draft1.draftKey, draft2.draftKey);

  const result = await draftService.commitDraft(userId, draft1.draftKey, { source: 'photo' });
  assert.equal(result.observations.length, 1);
  assert.equal(result.observations[0].metricType, 'hr');
  assert.equal(result.observations[0].sourceRef, sourceRef);
});

test('normalizeHealthDocumentOcr parses lab metrics', () => {
  const parsed = parseHealthDocumentOcrJson(
    '{"doc_type":"lab","report_date":"2026-08-01","institution":"市医院","title":"血常规","metrics":[{"name":"WBC","value":"6.2","unit":"10^9/L","flag":""}],"summary":"血常规报告","confidence":0.9}',
  );
  const normalized = normalizeHealthDocumentOcr(parsed);
  assert.equal(normalized.ok, true);
  assert.equal(normalized.extractedMetrics.length, 1);
  assert.equal(normalized.extractionStatus, 'partial');
});

test('buildHealthAgentContext wraps assess summary', () => {
  const now = Date.parse('2026-09-02T08:00:00+08:00');
  const observations = [];
  for (let i = 0; i < 8; i += 1) {
    const day = new Date(now - i * 86400000);
    observations.push({
      confirmed: true,
      observedAt: day.getTime(),
      metricType: 'bp_systolic',
      valueNum: 120 + i,
      unit: 'mmHg',
      context: 'morning',
      source: 'manual',
      qualityFlag: 'ok',
    });
  }
  const context = buildHealthAgentContext(observations, { now });
  assert.match(context, /健康档案摘要/);
  const wrapped = wrapHealthAgentUserMessage(context, '最近怎么样？');
  assert.match(wrapped, /最近怎么样/);
});