import assert from 'node:assert/strict'
import { test } from 'node:test'
import {
  addRecord,
  advanceMockResults,
  createInitialState,
  formatTime,
  markRead,
  recognizePhotos,
  students,
  validateUpload
} from '../src/data/workbench.ts'

const photo = (id) => ({ id, path: '', name: id, demo: true })
const metadata = { name: '测试卷', year: '2026', paperType: '模拟', province: '浙江省' }

test('appending and deleting photos retains question edits and renumbers pages', () => {
  const first = recognizePhotos([photo('a'), photo('b')])
  first[0].content = '修改后的题干'
  first[0].options[0] = '修改后的选项'
  first[0].isWrong = true
  first[0].tags.push('几何')
  const appended = recognizePhotos([photo('a'), photo('b'), photo('c')], first)
  assert.equal(appended.length, 9)
  assert.equal(appended[0].content, '修改后的题干')
  assert.equal(appended[0].options[0], '修改后的选项')
  assert.equal(appended[0].isWrong, true)
  assert.ok(appended[0].tags.includes('几何'))
  const removed = recognizePhotos([photo('b'), photo('c')], appended)
  assert.equal(removed.length, 6)
  assert.equal(removed[0].page, 1)
  assert.equal(removed[3].page, 2)
  assert.deepEqual(
    removed.map((q) => q.num),
    [1, 2, 3, 4, 5, 6]
  )
})

test('required fields and student identity work across different classes with identical names', () => {
  assert.notEqual(students[0].id, students[3].id)
  assert.equal(students[0].name, students[3].name)
  assert.equal(validateUpload('mistakes', [photo('a')], [], metadata), '请先关联学生')
  assert.equal(validateUpload('mistakes', [photo('a')], [students[0], students[3]], metadata), '')
  for (const field of ['name', 'year', 'paperType', 'province'])
    assert.ok(validateUpload('papers', [photo('a')], [], { ...metadata, [field]: '' }))
  assert.equal(validateUpload('answers', [], [], metadata), '请先添加照片')
})

test('submission, approval and explanation completion are idempotent and survive serialization', () => {
  const now = Date.now()
  let state = createInitialState()
  const record = {
    id: 'new-paper',
    kind: 'papers',
    ...metadata,
    photos: [photo('a')],
    questions: recognizePhotos([photo('a')]),
    students: [],
    submittedAt: new Date(now).toISOString(),
    reviewStatus: 'pending'
  }
  state = addRecord(state, record)
  assert.equal(addRecord(state, record), state)
  assert.equal(state.records[0].reviewStatus, 'pending')
  state = JSON.parse(JSON.stringify(state))
  const complete = advanceMockResults(state, now + 21000)
  assert.equal(complete.records[0].reviewStatus, 'approved')
  assert.equal(complete.notices.filter((n) => n.id === 'approved-new-paper').length, 1)
  assert.equal(
    complete.explanations.find((v) => v.status === 'waiting'),
    undefined
  )
  assert.equal(advanceMockResults(complete, now + 30000), complete)
  assert.equal(state.records[0].reviewStatus, 'pending', 'previous state must remain immutable')
})

test('opening an explanation synchronizes its message badge, while unrelated notices stay unread', () => {
  const initial = createInitialState()
  const read = markRead(initial, initial.explanations[0].id)
  assert.equal(read.explanations[0].unread, false)
  assert.equal(read.notices[0].unread, false)
  assert.equal(read.notices[1].unread, true)
  const all = markRead(read)
  assert.ok(all.notices.every((n) => !n.unread))
  assert.ok(all.explanations.every((v) => !v.unread))
})

test('China time display stays stable across device timezones', () => {
  assert.equal(formatTime('2026-10-26T01:05:00Z'), '2026/10/26 09:05')
  assert.equal(formatTime('invalid'), '待同步')
})