import { describe, expect, it } from "bun:test";
import { __filingTaxonomyInternals } from "./filing-taxonomy";

describe("filing taxonomy snapshot normalization", () => {
  it("normalizes legacy snake_case nested snapshot payloads in toSnapshotRecord", () => {
    const record = __filingTaxonomyInternals.toSnapshotRecord({
      id: 1,
      filing_id: 10,
      ticker: "MSFT",
      filing_date: "2026-01-28",
      filing_type: "10-Q",
      parse_status: "ready",
      parse_error: null,
      source: "xbrl_instance",
      parser_engine: "fiscal-xbrl",
      parser_version: "0.1.0",
      taxonomy_regime: "us-gaap",
      fiscal_pack: "core",
      periods: [
        {
          id: "fy-2025",
          filing_id: 10,
          accession_number: "0001",
          filing_date: "2026-01-28",
          period_start: "2025-01-01",
          period_end: "2025-12-31",
          filing_type: "10-Q",
          period_label: "FY 2025",
        },
      ],
      faithful_rows: {
        income: [
          {
            key: "revenue",
            label: "Revenue",
            concept_key: "us-gaap:Revenue",
            qname: "us-gaap:Revenue",
            namespace_uri: "http://fasb.org/us-gaap/2025",
            local_name: "Revenue",
            is_extension: false,
            statement: "income",
            role_uri: "income",
            order: 10,
            depth: 0,
            parent_key: null,
            values: { "fy-2025": 10 },
            units: { "fy-2025": "iso4217:USD" },
            has_dimensions: false,
            source_fact_ids: [1],
          },
        ],
        balance: [],
        cash_flow: [],
        equity: [],
        comprehensive_income: [],
      },
      statement_rows: null,
      surface_rows: {
        income: [
          {
            key: "revenue",
            label: "Revenue",
            category: "revenue",
            template_section: "revenue",
            order: 10,
            unit: "currency",
            values: { "fy-2025": 10 },
            source_concepts: ["us-gaap:Revenue"],
            source_row_keys: ["revenue"],
            source_fact_ids: [1],
            formula_key: null,
            has_dimensions: false,
            resolved_source_row_keys: { "fy-2025": "revenue" },
            statement: "income",
            detail_count: 1,
            resolution_method: "direct",
            confidence: "high",
            warning_codes: ["legacy_surface"],
          },
        ],
        balance: [],
        cash_flow: [],
        equity: [],
        comprehensive_income: [],
      },
      detail_rows: {
        income: {
          revenue: [
            {
              key: "revenue_detail",
              parent_surface_key: "revenue",
              label: "Revenue Detail",
              concept_key: "us-gaap:RevenueDetail",
              qname: "us-gaap:RevenueDetail",
              namespace_uri: "http://fasb.org/us-gaap/2025",
              local_name: "RevenueDetail",
              unit: "iso4217:USD",
              values: { "fy-2025": 10 },
              source_fact_ids: [2],
              is_extension: false,
              dimensions_summary: ["region:americas"],
              residual_flag: false,
            },
          ],
        },
        balance: {},
        cash_flow: {},
        equity: {},
        comprehensive_income: {},
      },
      kpi_rows: [
        {
          key: "cloud_growth",
          label: "Cloud Growth",
          category: "operating_kpi",
          unit: "percent",
          order: 10,
          segment: null,
          axis: null,
          member: null,
          values: { "fy-2025": 0.25 },
          source_concepts: ["msft:CloudGrowth"],
          source_fact_ids: [3],
          provenance_type: "taxonomy",
          has_dimensions: false,
        },
      ],
      computed_definitions: [
        {
          key: "gross_margin",
          label: "Gross Margin",
          category: "margins",
          order: 10,
          unit: "percent",
          computation: {
            type: "ratio",
            numerator: "gross_profit",
            denominator: "revenue",
          },
          supported_cadences: ["annual", "quarterly"],
          requires_external_data: [],
        },
      ],
      derived_metrics: null,
      validation_result: null,
      normalization_summary: {
        surface_row_count: 1,
        detail_row_count: 1,
        kpi_row_count: 1,
        unmapped_row_count: 0,
        material_unmapped_row_count: 0,
        residual_primary_count: 0,
        residual_disclosure_count: 0,
        unsupported_concept_count: 0,
        issuer_overlay_match_count: 0,
        warnings: ["legacy_warning"],
      },
      facts_count: 3,
      concepts_count: 3,
      dimensions_count: 1,
      created_at: "2026-01-28T00:00:00.000Z",
      updated_at: "2026-01-28T00:00:00.000Z",
    } as never);

    expect(record.periods[0]).toMatchObject({
      filingId: 10,
      accessionNumber: "0001",
      filingDate: "2026-01-28",
      periodStart: "2025-01-01",
      periodEnd: "2025-12-31",
      periodLabel: "FY 2025",
    });
    expect(record.faithful_rows.income[0]).toMatchObject({
      conceptKey: "us-gaap:Revenue",
      namespaceUri: "http://fasb.org/us-gaap/2025",
      localName: "Revenue",
      roleUri: "income",
      parentKey: null,
      hasDimensions: false,
      sourceFactIds: [1],
    });
    expect(record.surface_rows.income[0]).toMatchObject({
      templateSection: "revenue",
      sourceConcepts: ["us-gaap:Revenue"],
      sourceRowKeys: ["revenue"],
      sourceFactIds: [1],
      formulaKey: null,
      hasDimensions: false,
      resolvedSourceRowKeys: { "fy-2025": "revenue" },
      detailCount: 1,
      resolutionMethod: "direct",
      warningCodes: ["legacy_surface"],
    });
    expect(record.detail_rows.income.revenue?.[0]).toMatchObject({
      parentSurfaceKey: "revenue",
      conceptKey: "us-gaap:RevenueDetail",
      namespaceUri: "http://fasb.org/us-gaap/2025",
      sourceFactIds: [2],
      dimensionsSummary: ["region:americas"],
      residualFlag: false,
    });
    expect(record.kpi_rows[0]).toMatchObject({
      sourceConcepts: ["msft:CloudGrowth"],
      sourceFactIds: [3],
      provenanceType: "taxonomy",
      hasDimensions: false,
    });
    expect(record.computed_definitions).toEqual([
      {
        key: "gross_margin",
        label: "Gross Margin",
        category: "margins",
        order: 10,
        unit: "percent",
        computation: {
          type: "ratio",
          numerator: "gross_profit",
          denominator: "revenue",
        },
        supported_cadences: ["annual", "quarterly"],
        requires_external_data: [],
      },
    ]);
    expect(record.normalization_summary).toEqual({
      surfaceRowCount: 1,
      detailRowCount: 1,
      kpiRowCount: 1,
      unmappedRowCount: 0,
      materialUnmappedRowCount: 0,
      residualPrimaryCount: 0,
      residualDisclosureCount: 0,
      unsupportedConceptCount: 0,
      issuerOverlayMatchCount: 0,
      warnings: ["legacy_warning"],
    });
  });

  it("keeps mixed camelCase and snake_case payloads compatible", () => {
    const normalized =
      __filingTaxonomyInternals.normalizeFilingTaxonomySnapshotPayload({
        periods: [
          {
            id: "fy-2025",
            filingId: 10,
            accessionNumber: "0001",
            filingDate: "2026-01-28",
            periodStart: "2025-01-01",
            periodEnd: "2025-12-31",
            filingType: "10-K",
            periodLabel: "FY 2025",
          },
        ],
        faithful_rows: {
          income: [
            {
              key: "revenue",
              label: "Revenue",
              conceptKey: "us-gaap:Revenue",
              qname: "us-gaap:Revenue",
              namespaceUri: "http://fasb.org/us-gaap/2025",
              localName: "Revenue",
              isExtension: false,
              statement: "income",
              roleUri: "income",
              order: 10,
              depth: 0,
              parentKey: null,
              values: { "fy-2025": 10 },
              units: { "fy-2025": "iso4217:USD" },
              hasDimensions: false,
              sourceFactIds: [1],
            },
          ],
          balance: [],
          cash_flow: [],
          equity: [],
          comprehensive_income: [],
        },
        statement_rows: null,
        surface_rows: {
          income: [
            {
              key: "revenue",
              label: "Revenue",
              category: "revenue",
              order: 10,
              unit: "currency",
              values: { "fy-2025": 10 },
              source_concepts: ["us-gaap:Revenue"],
              source_row_keys: ["revenue"],
              source_fact_ids: [1],
              formula_key: null,
              has_dimensions: false,
              resolved_source_row_keys: { "fy-2025": "revenue" },
            },
          ],
          balance: [],
          cash_flow: [],
          equity: [],
          comprehensive_income: [],
        },
        detail_rows: {
          income: {
            revenue: [
              {
                key: "revenue_detail",
                parentSurfaceKey: "revenue",
                label: "Revenue Detail",
                conceptKey: "us-gaap:RevenueDetail",
                qname: "us-gaap:RevenueDetail",
                namespaceUri: "http://fasb.org/us-gaap/2025",
                localName: "RevenueDetail",
                unit: "iso4217:USD",
                values: { "fy-2025": 10 },
                sourceFactIds: [2],
                isExtension: false,
                dimensionsSummary: [],
                residualFlag: false,
              },
            ],
          },
          balance: {},
          cash_flow: {},
          equity: {},
          comprehensive_income: {},
        },
        kpi_rows: [],
        computed_definitions: [
          {
            key: "revenue_yoy",
            label: "Revenue YoY",
            category: "growth",
            order: 20,
            unit: "percent",
            computation: {
              type: "yoy_growth",
              source: "revenue",
            },
            supportedCadences: ["annual"],
            requiresExternalData: [],
          },
        ],
        normalization_summary: {
          surfaceRowCount: 1,
          detail_row_count: 1,
          kpiRowCount: 0,
          unmapped_row_count: 0,
          materialUnmappedRowCount: 0,
          residualPrimaryCount: 0,
          residualDisclosureCount: 0,
          unsupportedConceptCount: 0,
          issuerOverlayMatchCount: 0,
          warnings: [],
        },
      });

    expect(normalized.periods[0]?.filingId).toBe(10);
    expect(normalized.surface_rows.income[0]?.sourceConcepts).toEqual([
      "us-gaap:Revenue",
    ]);
    expect(normalized.detail_rows.income.revenue?.[0]?.parentSurfaceKey).toBe(
      "revenue",
    );
    expect(normalized.normalization_summary).toEqual({
      surfaceRowCount: 1,
      detailRowCount: 1,
      kpiRowCount: 0,
      unmappedRowCount: 0,
      materialUnmappedRowCount: 0,
      residualPrimaryCount: 0,
      residualDisclosureCount: 0,
      unsupportedConceptCount: 0,
      issuerOverlayMatchCount: 0,
      warnings: [],
    });
    expect(normalized.computed_definitions).toEqual([
      {
        key: "revenue_yoy",
        label: "Revenue YoY",
        category: "growth",
        order: 20,
        unit: "percent",
        computation: {
          type: "yoy_growth",
          source: "revenue",
        },
        supported_cadences: ["annual"],
        requires_external_data: [],
      },
    ]);
  });
});