const test = require('node:test')
const assert = require('node:assert/strict')

const { getBadgeProgress, getBadgeCelebration } = require('../utils/badge-state')

const badges = [{ days: 3 }, { days: 7 }, { days: 14 }]

test('badge progress remains zero before the first milestone', () => {
  assert.equal(getBadgeProgress(badges, 1), 0)
  assert.equal(getBadgeProgress(badges, 2), 0)
  assert.equal(getBadgeProgress(badges, 3), 4)
})

test('badge celebration keeps prior milestones seen after records are deleted', () => {
  const afterDeletion = getBadgeCelebration([3], [])
  assert.deepEqual(afterDeletion, { newly: [], seen: [3] })

  const afterRetraining = getBadgeCelebration(afterDeletion.seen, [3])
  assert.deepEqual(afterRetraining, { newly: [], seen: [3] })
})

test('badge celebration only reports milestones never seen before', () => {
  assert.deepEqual(getBadgeCelebration([3], [3, 7]), {
    newly: [7],
    seen: [3, 7]
  })
})