import { describe, it, expect } from "vitest";
import {
  extractText,
  extractStringList,
  isObjectObject,
  normalizeQuizAnswer,
} from "./extract-text";

describe("extractText", () => {
  it("returns empty for object without known fields instead of [object Object]", () => {
    expect(extractText({ foo: "bar" })).toBe("");
    expect(extractText({ task: "Research DNS" })).toBe("Research DNS");
  });

  it("extracts nested assignment objects", () => {
    expect(
      extractText({
        task: "Write a summary",
        steps: ["Open docs", "Take notes"],
      })
    ).toContain("Write a summary");
  });
});

describe("extractStringList", () => {
  it("maps object steps to strings", () => {
    expect(
      extractStringList([{ step: "Read chapter 1" }, "Search Wikipedia"])
    ).toEqual(["Read chapter 1", "Search Wikipedia"]);
  });
});

describe("normalizeQuizAnswer", () => {
  it("maps letter B to index 1", () => {
    const result = normalizeQuizAnswer("B", ["A opt", "B opt", "C opt"]);
    expect(result.answerIndex).toBe(1);
    expect(result.answerText).toBe("B opt");
  });
});

describe("isObjectObject", () => {
  it("detects invalid coerced strings", () => {
    expect(isObjectObject("[object Object]")).toBe(true);
    expect(isObjectObject("real text")).toBe(false);
  });
});