// @vitest-environment node
import fs from "node:fs";
import path from "node:path";
import { describe, expect, it } from "vitest";

const sourcePath = path.resolve(process.cwd(), "apps/web/app/components/ui/tables/TableSimple.tsx");

describe("TableSimple render performance", () => {
  it("precomputes repeated table collections outside the row render path", () => {
    const source = fs.readFileSync(sourcePath, "utf8");

    expect(source).toContain("const visibleHeaders = useMemo");
    expect(source).toContain("const firstColumnActions = useMemo");
    expect(source).toContain("const trailingActions = useMemo");
    expect(source).toContain("const selectedRowsSet = useMemo");
    expect(source).not.toContain("actions.filter((f) => f.firstColumn)");
    expect(source).not.toContain("actions.filter((f) => !f.firstColumn)");
    expect(source).not.toContain("headers.filter((f) => !f.hidden)");
    expect(source).not.toContain("selectedRows?.includes(item)");
  });
});