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

import { readIsHatti, writeIsHatti } from './is-hatti-settings'

describe('AITURK iş hattı settings', () => {
  it('defaults to the recommended rule and reads older files the way the bridge does', () => {
    expect(readIsHatti(null)).toEqual({ secim: 'onerilen', talimat: '' })
    expect(readIsHatti('{"aiturk_hat":{"enabled":false}}').secim).toBe('kapali')
    expect(readIsHatti('{"aiturk_hat":{"talimat":"x"}}')).toEqual({ secim: 'ozel', talimat: 'x' })
    expect(readIsHatti('bozuk').secim).toBe('onerilen')
  })

  it('writes only aiturk_hat and keeps everything else', () => {
    const raw = '{"port":8795,"aiturk_hat":{"enabled":false,"komut":"k"}}'
    const out = JSON.parse(writeIsHatti(raw, { secim: 'buyuk', talimat: '' }))
    expect(out).toEqual({ port: 8795, aiturk_hat: { komut: 'k', secim: 'buyuk', talimat: '' } })
  })

  it('rejects an empty custom text and unknown choices', () => {
    expect(() => writeIsHatti(null, { secim: 'ozel', talimat: '  ' })).toThrow()
    expect(() => writeIsHatti(null, { secim: 'x', talimat: '' })).toThrow()
    expect(() => writeIsHatti('{bozuk', { secim: 'onerilen', talimat: '' })).toThrow()
  })
})