import { describe, expect, it } from 'bun:test';
import { parseXbrlInstance } from '@/lib/server/taxonomy/xbrl-parser';

const SAMPLE_XBRL = `
<xbrli:xbrl xmlns:xbrli="http://www.xbrl.org/2003/instance"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:us-gaap="http://fasb.org/us-gaap/2024"
  xmlns:dei="http://xbrl.sec.gov/dei/2024">
  <xbrli:context id="c1">
    <xbrli:period>
      <xbrli:startDate>2025-01-01</xbrli:startDate>
      <xbrli:endDate>2025-12-31</xbrli:endDate>
    </xbrli:period>
  </xbrli:context>
  <xbrli:context id="c2">
    <xbrli:entity>
      <xbrli:segment>
        <xbrldi:explicitMember dimension="us-gaap:StatementBusinessSegmentsAxis">us-gaap:ConsolidatedGroupMember</xbrldi:explicitMember>
      </xbrli:segment>
    </xbrli:entity>
    <xbrli:period>
      <xbrli:instant>2025-12-31</xbrli:instant>
    </xbrli:period>
  </xbrli:context>
  <xbrli:unit id="u1">
    <xbrli:measure>iso4217:USD</xbrli:measure>
  </xbrli:unit>
  <us-gaap:Revenues contextRef="c1" unitRef="u1" decimals="-6">1,234</us-gaap:Revenues>
  <us-gaap:Assets contextRef="c2" unitRef="u1" decimals="-6">5,678</us-gaap:Assets>
  <dei:EntityRegistrantName contextRef="c1">Acme Corp</dei:EntityRegistrantName>
</xbrli:xbrl>
`;

describe('xbrl instance parser', () => {
  it('parses contexts, units, numeric facts, dimensions, and concept keys', () => {
    const parsed = parseXbrlInstance(SAMPLE_XBRL, 'abc_htm.xml');

    expect(parsed.contexts.c1?.periodStart).toBe('2025-01-01');
    expect(parsed.contexts.c1?.periodEnd).toBe('2025-12-31');
    expect(parsed.contexts.c2?.periodInstant).toBe('2025-12-31');
    expect(parsed.contexts.c2?.dimensions.length).toBe(1);
    expect(parsed.units.u1?.measure).toBe('iso4217:USD');

    expect(parsed.facts.length).toBe(2);
    const revenueFact = parsed.facts.find((fact) => fact.localName === 'Revenues');
    const assetsFact = parsed.facts.find((fact) => fact.localName === 'Assets');

    expect(revenueFact?.conceptKey).toBe('http://fasb.org/us-gaap/2024#Revenues');
    expect(revenueFact?.isDimensionless).toBe(true);
    expect(revenueFact?.value).toBe(1234);
    expect(revenueFact?.sourceFile).toBe('abc_htm.xml');

    expect(assetsFact?.conceptKey).toBe('http://fasb.org/us-gaap/2024#Assets');
    expect(assetsFact?.isDimensionless).toBe(false);
    expect(assetsFact?.dimensions[0]).toEqual({
      axis: 'us-gaap:StatementBusinessSegmentsAxis',
      member: 'us-gaap:ConsolidatedGroupMember'
    });
  });
});