import { describe, expect, it } from 'vitest';
import {
  POLICY_COMPARATOR_CATALOG,
  POLICY_DEPENDENCY_RULESET,
  POLICY_EVALUATION_ENGINE,
  POLICY_RISK_RULESET,
  type PolicyEvaluationResult,
  type PolicyEvaluationRun,
  type StoredPolicyEvaluation
} from '../../src/domain/policy-evaluation';
import {
  createPolicyEvaluationUnifiedResult,
  createPolicyUnifiedResult,
  deriveUnifiedResultFacets,
  queryUnifiedResultItems,
  selectCurrentPolicyEvaluations
} from '../../src/domain/unified-result';

const timestamp = '2026-09-06T10:00:00.000Z';

function evaluationRun(id = 'evaluation-one', baselineAnalysisIds = ['baseline-analysis-one']): PolicyEvaluationRun {
  return {
    version: 1,
    id,
    projectId: 'project-synthetic',
    aggregationRunId: 'aggregation-one',
    environmentProfileId: 'environment-one',
    baselineAnalysisIds,
    evaluator: POLICY_EVALUATION_ENGINE,
    comparatorCatalog: POLICY_COMPARATOR_CATALOG,
    dependencyRules: POLICY_DEPENDENCY_RULESET,
    riskRules: POLICY_RISK_RULESET,
    ruleCatalog: {} as PolicyEvaluationRun['ruleCatalog'],
    status: 'complete',
    resultCount: 1,
    matchCount: 0,
    deviationCount: 1,
    notApplicableCount: 0,
    reviewCount: 0,
    projectedFindingCount: 0,
    diagnosticCodes: [],
    startedAt: timestamp,
    completedAt: timestamp
  };
}

function evaluationResult(
  classification: PolicyEvaluationResult['classification'] = 'confirmed_configured_deviation'
): PolicyEvaluationResult {
  return {
    version: 1,
    id: `result-${classification}`,
    evaluationRunId: 'evaluation-one',
    aggregationStateId: 'state-one',
    baselineAnalysisId: 'baseline-analysis-one',
    baselineId: 'baseline-one',
    baselineLabel: 'Synthetic Windows baseline',
    customerState: 'configured',
    identity: {
      version: 1,
      id: 'gpo-policy-identity-synthetic',
      resolver: { id: 'gpo-technical-registry-target', version: '1.0.0' },
      scope: 'computer',
      target: {
        kind: 'registry-value',
        hive: 'HKEY_LOCAL_MACHINE',
        key: 'Software\\Policies\\Synthetic',
        valueName: 'Enabled'
      },
      admx: { status: 'not-found' }
    },
    classification,
    comparator: {
      version: 1,
      comparator: { kind: 'equality' },
      relation: classification === 'configured_match' ? 'match' : 'different',
      actual: { kind: 'integer', value: '0' },
      baseline: { kind: 'integer', value: '1' },
      diagnosticCodes: []
    },
    baselineState: 'explicit-recommendation',
    contextIds: [],
    ruleIds: [],
    dependencyRuleIds: [],
    riskRuleIds: [],
    observationIds: ['observation-one'],
    backupInstanceIds: ['backup-one'],
    baselineAnalysisIds: ['baseline-analysis-one'],
    baselineSettingIds: ['baseline-setting-one'],
    findingEligibility: 'ineligible',
    effectiveState: 'unknown',
    diagnosticCodes: []
  };
}

describe('GPO unified Result DB projection', () => {
  it('requires configured-value evidence even for previously materialized factory findings', () => {
    const source = { definition: { id: 'definition', title: 'Synthetic setting', description: '', recommendation: '' },
      occurrence: { id: 'occurrence', projectId: 'synthetic', classification: 'confirmed_configured_deviation', outcome: 'fail', createdAt: timestamp },
      comparison: evaluationResult() } as unknown as Parameters<typeof createPolicyUnifiedResult>[0];
    expect(createPolicyUnifiedResult(source)).toMatchObject({ outcomeNormalized: 'fail', isDeviation: true });
    source.comparison!.customerState = 'missing';
    source.comparison!.comparator.actual = undefined;
    expect(createPolicyUnifiedResult(source)).toMatchObject({ outcomeNormalized: 'informational', isDeviation: false });
    delete source.comparison;
    expect(createPolicyUnifiedResult(source)).toMatchObject({ outcomeNormalized: 'not_evaluated', isDeviation: false });
  });

  it('does not treat missing recommendations or inconsistent customer evidence as misconfiguration', () => {
    for (const patch of [
      { customerState: 'missing' },
      { customerState: 'unknown' },
      { baselineState: 'catalog-gap' },
      { diagnosticCodes: ['policy-evaluation-baseline-consensus-conflict'] },
    ]) {
      const value = Object.assign(evaluationResult(), patch);
      expect(createPolicyEvaluationUnifiedResult(evaluationRun(), value).isDeviation).toBe(false);
    }
    const value = evaluationResult();
    value.comparator.actual = { kind: 'none' };
    expect(createPolicyEvaluationUnifiedResult(evaluationRun(), value).isDeviation).toBe(false);
    value.comparator.actual = { kind: 'integer', value: '0' };
    value.comparator.baseline = { kind: 'text', value: '' };
    expect(createPolicyEvaluationUnifiedResult(evaluationRun(), value).isDeviation).toBe(false);
  });

  it('keeps missing settings and review-only conflicts out of Deviation without hiding them', () => {
    const missing = evaluationResult();
    missing.customerState = 'missing';
    missing.comparator.actual = undefined;
    const before = JSON.stringify(missing);
    const item = createPolicyEvaluationUnifiedResult(evaluationRun(), missing);
    expect(item).toMatchObject({
      outcomeNormalized: 'informational', isDeviation: false, policyCustomerState: 'missing',
      policyClassification: 'not-configured'
    });
    expect(queryUnifiedResultItems([item], { deviation: true }).total).toBe(0);
    expect(queryUnifiedResultItems([item], { deviation: false }).total).toBe(1);
    expect(JSON.stringify(missing)).toBe(before);
    const conflict = evaluationResult('review_required');
    conflict.diagnosticCodes = ['policy-evaluation-baseline-consensus-conflict'];
    expect(createPolicyEvaluationUnifiedResult(evaluationRun(), conflict)).toMatchObject({
      outcomeNormalized: 'warning', isDeviation: false, policyClassification: 'conflict'
    });
  });

  it('exposes a failed baseline comparison as a normal GPO deviation without inventing severity', () => {
    const item = createPolicyEvaluationUnifiedResult(evaluationRun(), evaluationResult(), {
      assessmentId: 'assessment-one',
      importArtifactId: 'artifact-one',
      snapshotId: 'snapshot-one'
    });

    expect(item).toMatchObject({
      resultProjectionId: 'policy-evaluation-comparison:result-confirmed_configured_deviation',
      sourceKind: 'policy-evaluation',
      sourceTool: 'GPOs',
      assessmentId: 'assessment-one',
      outcomeNormalized: 'fail',
      resultType: 'policy_deviation',
      isDeviation: true,
      severityNormalized: 'unknown',
      policyBaselineLabel: 'Synthetic Windows baseline',
      policyComparisonRelation: 'different',
      policyCustomerState: 'configured',
      policyClassification: 'misconfigured',
      categories: [expect.objectContaining({ categoryLabel: 'GPOs', sourceTool: 'GPOs' })]
    });
    expect(queryUnifiedResultItems([item], { sourceTool: ['GPOs'], deviation: true }).total).toBe(1);
    expect(deriveUnifiedResultFacets([item]).facets.find(facet => facet.id === 'sourceTool')?.values)
      .toContainEqual({ value: 'GPOs', label: 'GPOs', count: 1 });
  });

  it('maps matching comparisons to Passed and selects the fullest current run per snapshot', () => {
    const passed = createPolicyEvaluationUnifiedResult(evaluationRun(), evaluationResult('configured_match'));
    expect(passed).toMatchObject({ outcomeNormalized: 'pass', isDeviation: false, policyClassification: 'match' });

    const sparse = { version: 1, run: evaluationRun('evaluation-sparse', ['baseline-analysis-one']), results: [], evidence: [] } as StoredPolicyEvaluation;
    const full = {
      version: 1,
      run: { ...evaluationRun('evaluation-full', ['baseline-analysis-one', 'baseline-analysis-two']), completedAt: '2026-09-06T09:00:00.000Z' },
      results: [], evidence: []
    } as StoredPolicyEvaluation;
    const obsolete = {
      version: 1,
      run: { ...evaluationRun('evaluation-obsolete', ['a', 'b', 'c']), evaluator: { ...POLICY_EVALUATION_ENGINE, version: '0.0.0' } },
      results: [], evidence: []
    } as unknown as StoredPolicyEvaluation;

    expect(selectCurrentPolicyEvaluations([sparse, full, obsolete]).map(record => record.run.id)).toEqual(['evaluation-full']);
  });
});