import { describe, expect, it } from 'vitest';

import {
  buildMySQLCompatibleViewMetadataSqls,
  isSidebarViewTableType,
  normalizeSidebarViewMetadataEntry,
  normalizeSidebarViewName,
  resolveSidebarMetadataDialect,
} from './sidebarMetadata';

describe('sidebarMetadata', () => {
  it('normalizes MySQL-compatible view names without schema prefixes', () => {
    expect(normalizeSidebarViewName('mysql', 'SYSDBA', 'SYSDBA', 'SYSDBA.V_ACCOUNT')).toBe('V_ACCOUNT');
  });

  it('keeps MySQL-compatible view schema metadata after display-name normalization', () => {
    expect(normalizeSidebarViewMetadataEntry('mysql', 'SYSDBA', 'SYSDBA', 'SYSDBA.V_ACCOUNT')).toEqual({
      viewName: 'V_ACCOUNT',
      schemaName: 'SYSDBA',
    });
    expect(normalizeSidebarViewMetadataEntry('mysql', 'GDB_APP', 'SYSDBA', 'V_ACCOUNT')).toEqual({
      viewName: 'V_ACCOUNT',
      schemaName: 'SYSDBA',
    });
  });

  it('falls back to the current database when MySQL-compatible view rows omit schema metadata', () => {
    expect(normalizeSidebarViewMetadataEntry('mysql', 'information_schema', '', 'CHARACTER_SETS')).toEqual({
      viewName: 'CHARACTER_SETS',
      schemaName: 'information_schema',
    });
  });

  it('uses MySQL metadata queries for custom MySQL-compatible domestic drivers', () => {
    expect(resolveSidebarMetadataDialect('goldendb')).toBe('mysql');
    expect(resolveSidebarMetadataDialect('custom', 'gdb')).toBe('mysql');
    expect(resolveSidebarMetadataDialect('custom', 'goldendb')).toBe('mysql');
    expect(resolveSidebarMetadataDialect('custom', 'greatdb')).toBe('mysql');
    expect(resolveSidebarMetadataDialect('custom', 'doris')).toBe('mysql');
  });

  it('accepts MySQL-compatible view type variants returned by domestic databases', () => {
    expect(isSidebarViewTableType(undefined)).toBe(true);
    expect(isSidebarViewTableType('VIEW')).toBe(true);
    expect(isSidebarViewTableType('SYSTEM VIEW')).toBe(true);
    expect(isSidebarViewTableType('BASE VIEW')).toBe(true);
    expect(isSidebarViewTableType('BASE TABLE')).toBe(false);
    expect(isSidebarViewTableType('MATERIALIZED VIEW')).toBe(false);
  });

  it('adds SHOW FULL TABLES view-only fallbacks for MySQL-compatible databases', () => {
    expect(buildMySQLCompatibleViewMetadataSqls('GDB_APP')).toEqual(expect.arrayContaining([
      "SHOW FULL TABLES FROM `GDB_APP` WHERE Table_type = 'VIEW'",
      "SHOW FULL TABLES WHERE Table_type = 'VIEW'",
    ]));
  });
});