feat: add ticket booking domain model

src/pages-service/tickets/model.test.mjs

@@ -0,0 +1,165 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+
+import {
+  TICKET_VIEWS,
+  applyRefund,
+  calculateAge,
+  calculateBookingTotals,
+  calculateRefundAmount,
+  createBookingDraft,
+  createPaidOrder,
+  isTravelerEligible,
+  popViewHistory,
+  validateBooking,
+} from './model.mjs'
+
+const adultProduct = {
+  id: 'adult',
+  name: '成人票',
+  salePrice: 160,
+  reservation: {
+    maxQuantity: 5,
+  },
+  ageRule: {
+    min: 18,
+    max: 59,
+  },
+  entitlements: [
+    {
+      id: 'adult-ticket',
+      name: '成人门票',
+      allocation: 120,
+      third_party: true,
+    },
+    {
+      id: 'shuttle',
+      name: '摆渡车',
+      allocation: 40,
+      self: true,
+    },
+  ],
+}
+
+const eligibleTraveler = {
+  id: 't-1',
+  name: '林晓',
+  idType: '身份证',
+  idNumber: '110101199001020010',
+}
+
+test('exposes the ticket views', () => {
+  assert.deepEqual(TICKET_VIEWS, {
+    HOME: 'home',
+    DETAIL: 'detail',
+    BOOKING: 'booking',
+    TRAVELERS: 'travelers',
+    PAID: 'paid',
+    ORDERS: 'orders',
+    ORDER_DETAIL: 'orderDetail',
+    REFUND: 'refundApply',
+    REFUND_RESULT: 'refundResult',
+    CREDENTIALS: 'credentials',
+  })
+})
+
+test('calculates age from a mainland ID at the visit date', () => {
+  assert.equal(calculateAge('110101196001010010', '2026-08-01'), 66)
+  assert.equal(calculateAge('110101201001020010', '2026-01-01'), 15)
+})
+
+test('checks traveler eligibility against an age rule', () => {
+  const traveler = {
+    idType: '身份证',
+    idNumber: '110101201001020010',
+  }
+
+  assert.equal(isTravelerEligible(traveler, { ageRule: { min: 6, max: 17 } }, '2026-08-01'), true)
+  assert.equal(isTravelerEligible(traveler, { ageRule: { min: 60, max: 120 } }, '2026-08-01'), false)
+})
+
+test('calculates booking totals including selected insurance', () => {
+  assert.deepEqual(calculateBookingTotals(adultProduct, 2, true, 5), {
+    productAmount: 320,
+    insuranceAmount: 10,
+    paidAmount: 330,
+  })
+})
+
+test('validates booking draft fields and selected travelers in order', () => {
+  const draft = createBookingDraft(adultProduct)
+  const incompleteTraveler = { id: 't-1', idType: '身份证', idNumber: '' }
+  const childTraveler = { id: 't-1', name: '小林', idType: '身份证', idNumber: '110101201001020010' }
+
+  assert.equal(validateBooking({ product: adultProduct, draft, travelers: [] }), '请选择使用日期')
+
+  const completeDraft = {
+    ...draft,
+    visitDate: '2026-08-01',
+    timeSlot: '08:00—09:30',
+    quantity: 1,
+    travelerIds: ['t-1'],
+    contactName: '林晓',
+    phone: '13800138000',
+  }
+
+  assert.equal(validateBooking({ product: adultProduct, draft: { ...completeDraft, timeSlot: '' }, travelers: [eligibleTraveler] }), '请选择使用场次')
+  assert.equal(validateBooking({ product: adultProduct, draft: { ...completeDraft, quantity: 0 }, travelers: [eligibleTraveler] }), '购买数量无效')
+  assert.equal(validateBooking({ product: adultProduct, draft: { ...completeDraft, travelerIds: [] }, travelers: [eligibleTraveler] }), '请选择足够数量的出行人')
+  assert.equal(validateBooking({ product: adultProduct, draft: { ...completeDraft, quantity: 2, travelerIds: ['t-1', 't-1'] }, travelers: [eligibleTraveler] }), '请选择足够数量的出行人')
+  assert.equal(validateBooking({ product: adultProduct, draft: completeDraft, travelers: [incompleteTraveler] }), '请完善出行人实名信息')
+  assert.equal(validateBooking({ product: adultProduct, draft: completeDraft, travelers: [childTraveler] }), '出行人年龄不符合票种要求')
+  assert.equal(validateBooking({ product: adultProduct, draft: { ...completeDraft, phone: '123' }, travelers: [eligibleTraveler] }), '请填写正确的联系人和手机号')
+  assert.equal(validateBooking({ product: adultProduct, draft: completeDraft, travelers: [eligibleTraveler] }), '')
+})
+
+test('creates a paid order with entitlements and credentials', () => {
+  const order = createPaidOrder({
+    product: adultProduct,
+    draft: {
+      ...createBookingDraft(adultProduct),
+      visitDate: '2026-08-01',
+      timeSlot: '08:00—09:30',
+      travelerIds: ['t-1'],
+      contactName: '林晓',
+      phone: '13800138000',
+      insuranceSelected: true,
+    },
+    travelers: [eligibleTraveler],
+    now: new Date('2026-07-30T10:00:00+08:00'),
+  })
+
+  assert.equal(order.status, 'paid')
+  assert.equal(order.paidAmount, 165)
+  assert.equal(order.entitlements.length, 2)
+  assert.match(order.gateCredential.qrToken, /^GATE-/)
+  assert.equal(order.logs[0].message, '订单支付成功')
+})
+
+test('applies refunds and pops view history without mutation', () => {
+  const order = createPaidOrder({
+    product: adultProduct,
+    draft: {
+      ...createBookingDraft(adultProduct),
+      visitDate: '2026-08-01',
+      timeSlot: '08:00—09:30',
+      travelerIds: ['t-1'],
+      contactName: '林晓',
+      phone: '13800138000',
+    },
+    travelers: [eligibleTraveler],
+  })
+  const entitlementId = order.entitlements[0].id
+  const history = ['home', 'detail', 'booking']
+
+  assert.equal(calculateRefundAmount(order, [entitlementId]), 120)
+
+  const result = applyRefund(order, [entitlementId], '行程有变', new Date('2026-07-30T10:01:00+08:00'))
+  assert.equal(result.order.status, 'refunding')
+  assert.equal(result.refund.amount, 120)
+  assert.equal(result.order.entitlements[0].status, 'refunding')
+  assert.deepEqual(applyRefund(result.order, [entitlementId], '重复申请').refund.entitlementIds, [])
+  assert.deepEqual(popViewHistory(history), { view: 'booking', history: ['home', 'detail'] })
+  assert.deepEqual(history, ['home', 'detail', 'booking'])
+  assert.deepEqual(popViewHistory([]), { view: 'home', history: [] })
+})