import { describe, expect, it } from "vitest";
import { parseValue } from "./question-birthplace";

describe("QuestionBirthplace parseValue", () => {
  it("parses empty and null values safely", () => {
    expect(parseValue(null)).toEqual({ country: "", city: "" });
    expect(parseValue(undefined)).toEqual({ country: "", city: "" });
    expect(parseValue("")).toEqual({ country: "", city: "" });
  });

  it("parses structured objects", () => {
    expect(parseValue({ country: "Iran", city: "Tehran" })).toEqual({
      country: "Iran",
      city: "Tehran",
    });
    expect(parseValue({ country: "Mashhad", city: "Iran" })).toEqual({
      country: "Iran",
      city: "Mashhad",
    });
    expect(parseValue({ country: "مشهد", city: "ایران" })).toEqual({
      country: "ایران",
      city: "مشهد",
    });
  });

  it("parses standard 'Country, City' strings", () => {
    expect(parseValue("Iran, Tehran")).toEqual({
      country: "Iran",
      city: "Tehran",
    });
    expect(parseValue("ایران, شیراز")).toEqual({
      country: "ایران",
      city: "شیراز",
    });
  });

  it("never swaps country and city even when city equals country name", () => {
    // Country selected as 'Afghanistan' and city typed as 'albania'
    expect(parseValue("Afghanistan, albania")).toEqual({
      country: "Afghanistan",
      city: "albania",
    });

    // Country selected as 'Albania' and city typed as 'Albania'
    expect(parseValue("Albania, Albania")).toEqual({
      country: "Albania",
      city: "Albania",
    });

    // Country selected as 'United States (US)' and city typed as 'Georgia'
    expect(parseValue("United States (US), Georgia")).toEqual({
      country: "United States (US)",
      city: "Georgia",
    });
  });

  it("correctly identifies country and city when formatted as 'City, Country'", () => {
    expect(parseValue("Mashhad, Iran")).toEqual({
      country: "Iran",
      city: "Mashhad",
    });
    expect(parseValue("مشهد، ایران")).toEqual({
      country: "ایران",
      city: "مشهد",
    });
    expect(parseValue("Tehran, IR")).toEqual({
      country: "IR",
      city: "Tehran",
    });
  });

  it("parses single country string", () => {
    expect(parseValue("Iran")).toEqual({
      country: "Iran",
      city: "",
    });
    expect(parseValue("ایران")).toEqual({
      country: "ایران",
      city: "",
    });
    expect(parseValue("Afghanistan")).toEqual({
      country: "Afghanistan",
      city: "",
    });
  });

  it("parses single custom city string without matching country", () => {
    expect(parseValue("Rey")).toEqual({
      country: "",
      city: "Rey",
    });
  });
});