import { describe, it, expect } from "vitest";
import { parseCsv } from "./loader";
import * as path from "path";
import * as fs from "fs";

const fixturesDir = path.join(__dirname, "fixtures");

describe("parseCsv - integration: loading two CSV tables from fixtures", () => {
  it("should load user_rev and order_rev tables and resolve orders array with correct length", () => {
    const userCsv = fs.readFileSync(
      path.join(fixturesDir, "user_rev.csv"),
      "utf-8",
    );

    const result = parseCsv(userCsv, {
      emitTypes: false,
      currentFilePath: path.join(fixturesDir, "user_rev.csv"),
    });

    expect(result.data).toHaveLength(2);

    // Alice (u01) should have 1 order
    const aliceOrders = result.data[0].orders as Record<string, unknown>[];
    expect(aliceOrders).toHaveLength(1);
    expect(aliceOrders[0].id).toBe("o01");

    // Bob (u02) should have 0 orders
    const bobOrders = result.data[1].orders as Record<string, unknown>[];
    expect(bobOrders).toHaveLength(0);
  });
});