import { describe, expect, it } from 'vitest';
import { defaultReview } from '../../src/domain/review';
import { makeSheet } from '../../src/importers/sheet-factory';
import { createSnapshot, parseSnapshot } from '../../src/persistence/snapshot-store';

const dataset = {
  fileName: 'synthetic.csv',
  fileSize: 42,
  lastModified: 1234,
  format: 'CSV',
  rawText: 'Name;Severity\nA;High',
  sheets: [makeSheet('CSV', [['Name', 'Severity'], ['A', 'High']], 'Name;Severity\nA;High', 'synthetic.csv')],
  profileId: 'generic',
  scanTool: 'Tabular Data'
};

describe('snapshot store', () => {
  it('round-trips a version 2 snapshot', () => {
    const snapshot = createSnapshot(dataset, { finding1: { ...defaultReview(), include: true } }, {
      now: () => new Date('2026-07-17T10:00:00.000Z')
    });
    expect(snapshot.createdAt).toBe('2026-07-17T10:00:00.000Z');
    expect(parseSnapshot(JSON.stringify(snapshot))).toEqual(snapshot);
  });

  it('imports legacy exxTableReader snapshots and normalizes the app name', () => {
    const snapshot = createSnapshot(dataset, {});
    expect(parseSnapshot(JSON.stringify({ ...snapshot, app: 'exxTableReader' }))?.app).toBe('ASSESSOR');
  });

  it('rejects unsupported snapshot versions', () => {
    const snapshot = createSnapshot(dataset, {});
    expect(parseSnapshot(JSON.stringify({ ...snapshot, version: 1 }))).toBeNull();
  });

  it('rejects structurally incomplete snapshot data', () => {
    expect(parseSnapshot(JSON.stringify({
      app: 'ASSESSOR',
      kind: 'snapshot',
      version: 2,
      dataset: { fileName: 'broken', profileId: 'generic', sheets: [] }
    }))).toBeNull();
  });
});