import { describe, it } from 'node:test';
import assert from 'node:assert/strict';
import { shared } from 'moroutine';

describe('shared() value shorthand', () => {
  it('shared(0) creates int32 initialized to 0', () => {
    const x = shared(0);
    assert.equal(x.load(), 0);
  });

  it('shared(42) creates int32 initialized to 42', () => {
    const x = shared(42);
    assert.equal(x.load(), 42);
  });

  it('shared(-1) creates int32 initialized to -1', () => {
    const x = shared(-1);
    assert.equal(x.load(), -1);
  });

  it('shared(true) creates bool initialized to true', () => {
    const x = shared(true);
    assert.equal(x.load(), true);
  });

  it('shared(false) creates bool initialized to false', () => {
    const x = shared(false);
    assert.equal(x.load(), false);
  });

  it('shared(0n) creates int64 initialized to 0n', () => {
    const x = shared(0n);
    assert.equal(x.load(), 0n);
  });

  it('shared(99n) creates int64 initialized to 99n', () => {
    const x = shared(99n);
    assert.equal(x.load(), 99n);
  });

  it('shared(value) throws for out-of-range int32', () => {
    assert.throws(() => shared(Number.MAX_SAFE_INTEGER), /out of range|exceeds/i);
    assert.throws(() => shared(2_147_483_648), /out of range|exceeds/i);
    assert.throws(() => shared(-2_147_483_649), /out of range|exceeds/i);
  });

  it('shared(value) throws for non-integer number', () => {
    assert.throws(() => shared(1.5), /out of range|integer/i);
  });

  it('value shorthand in struct schema', () => {
    const point = shared({ x: 10, y: 20 });
    assert.deepEqual(point.load(), { x: 10, y: 20 });
  });

  it('value shorthand in tuple schema', () => {
    const t = shared([1, 2n, true]);
    assert.deepEqual(t.load(), [1, 2n, true]);
  });

  it('mixed descriptors and values in struct', () => {
    const s = shared({ x: 0, y: 0, alive: true });
    assert.deepEqual(s.load(), { x: 0, y: 0, alive: true });
    s.store({ x: 10, y: 20, alive: false });
    assert.deepEqual(s.load(), { x: 10, y: 20, alive: false });
  });
});