import { readFileSync } from 'node:fs';
import { describe, expect, it } from 'vitest';

import { buildSidebarTableStatusSQL } from './sidebar/sidebarMetadataLoaders';

const loaderSource = readFileSync(new URL('./sidebar/useSidebarTreeLoaders.tsx', import.meta.url), 'utf8');

describe('Sidebar Dameng table count regression', () => {
  it('keeps oracle-like table metadata schema-aware for schema-grouped sidebars', () => {
    const damengSql = buildSidebarTableStatusSQL({ config: { type: 'dameng' } } as any, 'APP');
    const oracleSql = buildSidebarTableStatusSQL({ config: { type: 'oracle' } } as any, 'APP');

    expect(damengSql).toContain('owner AS schema_name');
    expect(damengSql).toContain('comments AS table_comment');
    expect(damengSql).toContain('COALESCE(t.blocks, 0) * 8192 AS table_size');
    expect(damengSql).not.toContain('all_segments');
    expect(oracleSql).toContain('owner AS schema_name');
    expect(oracleSql).toContain('COALESCE(t.blocks, 0) * 8192 AS table_size');
    expect(oracleSql).not.toContain('all_segments');

    expect(loaderSource).toContain('const tableMetadataMap = new Map<string, SidebarTableMetadataSnapshot & { schemaName?: string }>();');
    expect(loaderSource).toContain('const buildTableMetadataKeys = (rawTableName: string, rawSchemaName = \'\'): string[] => {');
    expect(loaderSource).toContain("getCaseInsensitiveValue(row, ['schema_name', 'SCHEMA_NAME', 'owner', 'OWNER'])");
    expect(loaderSource).toContain('const normalizedSchemaRows = schemaRows');
    expect(loaderSource).toContain('normalizedSchemaRows.length !== 1');
    expect(loaderSource).toContain('schemaName: mappedSchemaName');
  });
});