import { beforeEach, describe, expect, it, mock } from 'bun:test';

import type { FinancialStatementKind } from '@/lib/types';
import type { TaxonomyHydrationInput, TaxonomyHydrationResult } from '@/lib/server/taxonomy/types';

function createStatementRecord<T>(factory: () => T): Record<FinancialStatementKind, T> {
  return {
    income: factory(),
    balance: factory(),
    cash_flow: factory(),
    equity: factory(),
    comprehensive_income: factory()
  };
}

function createHydrationResult(): TaxonomyHydrationResult {
  return {
    filing_id: 1,
    ticker: 'TEST',
    filing_date: '2025-12-31',
    filing_type: '10-K',
    parse_status: 'ready',
    parse_error: null,
    source: 'xbrl_instance_with_linkbase',
    parser_engine: 'fiscal-xbrl',
    parser_version: '0.1.0',
    taxonomy_regime: 'us-gaap',
    fiscal_pack: 'core',
    periods: [],
    faithful_rows: createStatementRecord(() => []),
    statement_rows: createStatementRecord(() => []),
    surface_rows: createStatementRecord(() => []),
    detail_rows: createStatementRecord(() => ({})),
    kpi_rows: [],
    contexts: [],
    derived_metrics: null,
    validation_result: null,
    facts_count: 0,
    concepts_count: 0,
    dimensions_count: 0,
    assets: [],
    concepts: [],
    facts: [],
    metric_validations: [],
    normalization_summary: {
      surfaceRowCount: 0,
      detailRowCount: 0,
      kpiRowCount: 0,
      unmappedRowCount: 0,
      materialUnmappedRowCount: 0,
      warnings: ['rust_warning']
    }
  };
}

const mockHydrateFromSidecar = mock(async () => createHydrationResult());
mock.module('@/lib/server/taxonomy/parser-client', () => ({
  hydrateFilingTaxonomySnapshotFromSidecar: mockHydrateFromSidecar
}));

describe('taxonomy engine rust path', () => {
  beforeEach(() => {
    mockHydrateFromSidecar.mockClear();
  });

  it('returns sidecar output directly from the Rust sidecar', async () => {
    const { hydrateFilingTaxonomySnapshot } = await import('@/lib/server/taxonomy/engine');

    const input: TaxonomyHydrationInput = {
      filingId: 1,
      ticker: 'TEST',
      cik: '0000000001',
      accessionNumber: '0000000001-25-000001',
      filingDate: '2025-12-31',
      filingType: '10-K',
      filingUrl: 'https://www.sec.gov/Archives/edgar/data/1/000000000125000001/',
      primaryDocument: 'test-20251231.htm'
    };

    const result = await hydrateFilingTaxonomySnapshot(input);

    expect(mockHydrateFromSidecar).toHaveBeenCalledTimes(1);
    expect(result.parser_engine).toBe('fiscal-xbrl');
    expect(result.normalization_summary.warnings).toEqual(['rust_warning']);
  });
});