"use strict";

/**
 * CJS test suite for temporal-hijri.
 *
 * Verifies that the CommonJS build loads and functions correctly via require().
 */

const { describe, it } = require("node:test");
const assert = require("node:assert/strict");
const { Temporal } = require("@js-temporal/polyfill");
const { UaqCalendar, FcnaCalendar, uaqCalendar, fcnaCalendar } = require("./dist/index.cjs");

const isoRamadan = Temporal.PlainDate.from("2023-03-23");

// ── Class and singleton exports ───────────────────────────────────────────────

describe("CJS class exports", () => {
  it("UaqCalendar class loads via require", () => {
    assert(typeof UaqCalendar === "function", "UaqCalendar should be a constructor");
    const cal = new UaqCalendar();
    assert.equal(cal.id, "hijri-uaq");
  });

  it("FcnaCalendar class loads via require", () => {
    assert(typeof FcnaCalendar === "function", "FcnaCalendar should be a constructor");
    const cal = new FcnaCalendar();
    assert.equal(cal.id, "hijri-fcna");
  });

  it("uaqCalendar singleton id", () => {
    assert.equal(uaqCalendar.id, "hijri-uaq");
  });

  it("fcnaCalendar singleton id", () => {
    assert.equal(fcnaCalendar.id, "hijri-fcna");
  });
});

// ── Field accessors ───────────────────────────────────────────────────────────

describe("CJS field accessors", () => {
  it("uaqCalendar.year(2023-03-23) = 1444", () => {
    assert.equal(uaqCalendar.year(isoRamadan), 1444);
  });

  it("uaqCalendar.month(2023-03-23) = 9", () => {
    assert.equal(uaqCalendar.month(isoRamadan), 9);
  });

  it("uaqCalendar.day(2023-03-23) = 1", () => {
    assert.equal(uaqCalendar.day(isoRamadan), 1);
  });
});

// ── dateFromFields ─────────────────────────────────────────────────────────────

describe("CJS dateFromFields", () => {
  it("uaqCalendar.dateFromFields({year:1444, month:9, day:1}) = 2023-03-23", () => {
    const result = uaqCalendar.dateFromFields({ year: 1444, month: 9, day: 1 });
    assert.equal(result.toString(), "2023-03-23");
  });
});

// ── fields() ──────────────────────────────────────────────────────────────────

describe("CJS fields()", () => {
  it("returns the input array unchanged", () => {
    assert.deepEqual(uaqCalendar.fields(["year", "month", "day"]), ["year", "month", "day"]);
  });
});