import assert from 'node:assert/strict'
import test from 'node:test'
import { ApiNetworkError, StaleSessionError } from '../src/api/errors'
import { invalidateSession } from '../src/api/authSession'
import { bindMeMutationApply, resetMeMutationQueueForTests, runMeMutation } from '../src/api/meMutationQueue'
import { formatCoinTenths, nextShown, previousShown, revealPeriods } from '../src/modules/gold-land/lesson/growthTable'

const periods = [1000, 1100, 1210, 1331]

test('period reveal can move forward and back without changing amounts', () => {
  const snapshot = periods.join(',')
  let shown = 1
  assert.deepEqual(revealPeriods(periods, shown), [1000])
  shown = nextShown(shown, periods.length)
  shown = nextShown(shown, periods.length)
  shown = nextShown(shown, periods.length)
  assert.deepEqual(revealPeriods(periods, shown), periods)
  shown = previousShown(shown)
  assert.equal(revealPeriods(periods, shown).at(-1), 1210)
  assert.equal(periods.join(','), snapshot)
  assert.equal(formatCoinTenths(1331), '۱۳۳٫۱')
  assert.equal(formatCoinTenths(1210), '۱۲۱')
  assert.equal(formatCoinTenths(1300), '۱۳۰')
})

test('review keeps the chosen answer and a failed submit does not apply me', async () => {
  let answer = '120'
  answer = '121'
  resetMeMutationQueueForTests()
  let applied = 0
  bindMeMutationApply(() => {
    applied += 1
    return true
  })
  await assert.rejects(() => runMeMutation(async () => {
    throw new ApiNetworkError()
  }), ApiNetworkError)
  assert.equal(answer, '121')
  await assert.rejects(() => runMeMutation(async () => {
    invalidateSession()
    return { me: { user: { coins: 9 } } }
  }), StaleSessionError)
  assert.equal(applied, 0)
  assert.equal(answer, '121')
})