import { ALL_VENDORS, getVendorConfig } from '../vendors';

describe('vendor configs', () => {
  it('exposes all five vendors', () => {
    expect(ALL_VENDORS).toEqual(['sls', 'cls', 'tls', 'lts', 'bls']);
  });

  it.each(ALL_VENDORS)('vendor %s has the required fields populated', (vendor) => {
    const cfg = getVendorConfig(vendor);
    expect(cfg.id).toBe(vendor);
    expect(cfg.label).toBeTruthy();
    // Shared search keywords must always be present.
    expect(cfg.searchKeywords).toEqual(expect.arrayContaining(['AND', 'OR', 'NOT']));
    // Every vendor must support `:` as a field-assign operator.
    expect(cfg.fieldAssignOperators).toContain(':');
    // SQL keyword & function lists should not be empty.
    expect(cfg.sqlKeywords.length).toBeGreaterThan(10);
    expect(cfg.sqlFunctions.length).toBeGreaterThan(0);
    // Standard SQL keywords every dialect supports.
    expect(cfg.sqlKeywords).toEqual(expect.arrayContaining(['SELECT', 'FROM', 'WHERE', 'GROUP', 'BY']));
    // COUNT should be present everywhere.
    expect(cfg.sqlFunctions.map((f) => f.name)).toContain('COUNT');
  });

  it('LTS and BLS additionally accept `=` as a field-assign operator', () => {
    expect(getVendorConfig('lts').fieldAssignOperators).toContain('=');
    expect(getVendorConfig('bls').fieldAssignOperators).toContain('=');
  });

  it('SLS exposes its dialect-specific builtin fields', () => {
    const sls = getVendorConfig('sls');
    const names = (sls.searchBuiltinFields ?? []).map((f) => f.name);
    expect(names).toEqual(expect.arrayContaining(['__topic__', '__source__']));
  });

  it('LTS exposes the _exists_ builtin field for existence search', () => {
    const lts = getVendorConfig('lts');
    const names = (lts.searchBuiltinFields ?? []).map((f) => f.name);
    expect(names).toContain('_exists_');
  });
});