import { describe, expect, it } from 'vitest';

import { checkApiVersion, HOST_API_VERSION, isApiVersionSupported } from './api-version';

describe('checkApiVersion', () => {
  it('accepts a supported major', () => {
    const result = checkApiVersion('1');
    expect(result).toEqual({ compatible: true, version: 1 });
  });

  it('rejects a non-numeric version with a reason', () => {
    const result = checkApiVersion('1.0');
    expect(result.compatible).toBe(false);
    expect(result.version).toBeNull();
    expect(result.reason).toMatch(/whole-number major/i);
  });

  it('rejects a version above the host range', () => {
    const result = checkApiVersion('2', { min: 1, max: 1 });
    expect(result.compatible).toBe(false);
    expect(result.version).toBe(2);
    expect(result.reason).toMatch(/outside the supported range 1–1/);
  });

  it('rejects a version below the host range', () => {
    const result = checkApiVersion('1', { min: 2, max: 3 });
    expect(result.compatible).toBe(false);
    expect(result.reason).toMatch(/outside the supported range 2–3/);
  });

  it('accepts any major inside a wider host range', () => {
    expect(checkApiVersion('2', { min: 1, max: 3 }).compatible).toBe(true);
  });
});

describe('isApiVersionSupported', () => {
  it('mirrors checkApiVersion as a boolean', () => {
    expect(isApiVersionSupported(String(HOST_API_VERSION))).toBe(true);
    expect(isApiVersionSupported('99')).toBe(false);
  });
});