import { describe, expect, it } from 'vitest'
import {
  compareAppVersions,
  isPerfPrereleaseAppVersion,
  isPrereleaseAppVersion,
  isValidAppVersion,
  parseCliVersion
} from './app-version'

describe('app version comparison', () => {
  it('compares stable and prerelease versions with semver precedence', () => {
    expect(compareAppVersions('1.4.9', '1.5.0')).toBeLessThan(0)
    expect(compareAppVersions('1.5.0-rc.2', '1.5.0-rc.10')).toBeLessThan(0)
    expect(compareAppVersions('1.5.0-rc.10', '1.5.0')).toBeLessThan(0)
    expect(compareAppVersions('v1.5.0+build.2', '1.5.0+build.9')).toBe(0)
  })

  it('rejects incomplete versions and identifies prereleases', () => {
    expect(isValidAppVersion('1.5')).toBe(false)
    expect(isValidAppVersion('1.5.0')).toBe(true)
    expect(isPrereleaseAppVersion('1.5.0-rc.1')).toBe(true)
    expect(isPrereleaseAppVersion('1.5.0')).toBe(false)
    expect(isPerfPrereleaseAppVersion('1.5.0-rc.1.perf')).toBe(true)
    expect(isPerfPrereleaseAppVersion('1.5.0-rc.1')).toBe(false)
  })
})

describe('parseCliVersion', () => {
  it.each([
    ['2.1.261 (Claude Code)', '2.1.261'],
    ['agy version 1.1.11\n', '1.1.11'],
    ['v1.1.10 (darwin arm64)', '1.1.10'],
    ['1.1.11-rc.1', '1.1.11-rc.1'],
    ['agy 1.2.4+build.7', '1.2.4+build.7']
  ])('reads %j as %s', (output, expected) => {
    expect(parseCliVersion(output)).toBe(expected)
  })

  it.each([
    '',
    'agy',
    'version unknown',
    'agy version 1.1.11.0',
    'agy version 1.1.11-',
    'agy version 1.1.11+',
    null,
    undefined
  ])('returns null for %j', (output) => {
    expect(parseCliVersion(output)).toBeNull()
  })
})