import test from 'node:test'
import assert from 'node:assert/strict'
import { readFileSync } from 'node:fs'
import vm from 'node:vm'

function setup(confirm, saved = new Map(), scope = 'operator:warehouse') {
  const context = vm.createContext({ reactive: value => value, ReturnLabelConfirmation: {}, PortalHeader: {}, ScanTargetInput: {},
    playSuccessSound() {}, playErrorSound() {}, confirmReturnReceipt: confirm,
    uni: { setStorageSync: (key, value) => saved.set(key, structuredClone(value)), getStorageSync: key => saved.get(key), removeStorageSync: key => saved.delete(key) } })
  const store = readFileSync(new URL('../src/stores/warehouse-work.js', import.meta.url), 'utf8')
  vm.runInContext(store.replace(/^import .*$/mg, '').replace(/export /g, ''), context)
  const page = readFileSync(new URL('../src/pages/return-receipt/return-receipt.vue', import.meta.url), 'utf8')
  const script = page.match(/<script[^>]*>([\s\S]*?)<\/script>/)[1]
  const component = vm.runInContext(script.replace(/^\s*import .*$/mg, '').replace('export default', 'globalThis.component ='), context)
  vm.runInContext(`restoreWarehouseWork(${JSON.stringify(scope)})`, context)
  const instance = Object.assign({}, component.methods, {
    unitType: 'PALLET', palletBoxCount: 1, canConfirm: true, busy: false,
    current: { returnNo: 'RT-TEST', expectedItems: [{ skuCode: 'SKU-TEST', expectedQuantity: 10, receivedQuantity: 0 }] },
    selectedItems: [{ skuCode: 'SKU-TEST' }], photoFileIds: [], trackingNo: ' TRACK-TEST ', startedBy: 'SKU',
    palletCode: ' PLT-TEST ', palletLength: 10, palletWidth: 10, palletHeight: 10, palletWeight: 1,
    quantity: () => 2, boxCount: () => 1
  })
  Object.defineProperty(instance, 'receiptBatch', { get: () => vm.runInContext('warehouseWork.returnReceipt.pendingBatch', context) })
  return instance
}

test('SKU lookup displays all pending order lines while retaining scanned SKU for pallet generation', () => {
  const source = readFileSync(new URL('../src/pages/return-receipt/return-receipt.vue', import.meta.url), 'utf8')
  const script = source.match(/<script[^>]*>([\s\S]*?)<\/script>/)[1]
  const component = vm.runInNewContext(script.replace(/^\s*import .*$/mg, '').replace('export default', 'globalThis.component ='), { ReturnLabelConfirmation: {}, PortalHeader: {}, ScanTargetInput: {} })
  const lines = [{ skuCode: 'SKU-A', expectedQuantity: 6 }, { skuCode: 'SKU-B', expectedQuantity: 4 }]
  const instance = { current: { expectedItems: lines }, selectedSku: 'SKU-A' }
  instance.selectedItems = component.computed.selectedItems.call(instance)
  assert.equal(instance.selectedItems.length, 2)
  assert.equal(instance.selectedItems[1].skuCode, 'SKU-B')
  assert.equal(component.computed.activeSkuCode.call(instance), 'SKU-A')
  instance.selectedSku = ''
  assert.equal(component.computed.activeSkuCode.call(instance), 'SKU-A')
  instance.selectedSku = 'SKU-FROM-PREVIOUS-ORDER'
  assert.equal(component.computed.activeSkuCode.call(instance), 'SKU-A')
})

test('PALLET page submits the required palletCode through the actual confirmation method', async () => {
  const calls = []
  const page = setup(async payload => { calls.push(JSON.parse(JSON.stringify(payload))); return { palletCode: payload.palletCode } })
  await page.confirmReceipt()
  assert.equal(calls.length, 1)
  assert.equal(calls[0].palletCode, 'PLT-TEST')
	assert.equal(calls[0].unitCode, undefined)
	assert.deepEqual(Object.keys(calls[0]).sort(), ['height', 'idempotencyKey', 'items', 'length', 'palletCode', 'returnNo', 'startedBy', 'totalBoxCount', 'trackingNo', 'unitType', 'weight', 'width'].sort())
	assert.equal(calls[0].unitType, 'PALLET')
	assert.equal(calls[0].totalBoxCount, 1)
	assert.deepEqual(Object.keys(calls[0].items[0]).sort(), ['boxCount', 'receivedQuantity', 'skuCode'].sort())
  assert.equal(calls[0].returnNo, 'RT-TEST')
  assert.equal(calls[0].trackingNo, 'TRACK-TEST')
  assert.equal(calls[0].items[0].receivedQuantity, 2)
  assert.ok(calls[0].idempotencyKey)
  assert.equal(page.current, null)
})

test('parcel signing allows an empty code but still rejects quantities above the remaining amount', async () => {
  const source = readFileSync(new URL('../src/pages/return-receipt/return-receipt.vue', import.meta.url), 'utf8')
  const component = vm.runInNewContext(source.match(/<script[^>]*>([\s\S]*?)<\/script>/)[1].replace(/^\s*import .*$/mg, '').replace('export default', 'globalThis.component ='), { ReturnLabelConfirmation: {}, PortalHeader: {}, ScanTargetInput: {} })
  const state = { current: {}, selectedItems: [{ skuCode: 'A' }], receiptQuantity: 2, unitType: 'PARCEL', boxRows: [{ items: { A: 2 } }], remaining: () => 3 }
  assert.equal(component.computed.canConfirm.call(state), true)
  state.boxRows[0].items.A = 4
  assert.equal(component.computed.canConfirm.call(state), false)
  const calls = []
  const page = setup(async payload => { calls.push(payload); return { unitType: 'PARCEL' } })
  page.unitType = 'PARCEL'; page.unitCode = ''; page.trackingNo = ''; page.boxRows = [{ items: { 'SKU-TEST': 2 } }]
  await page.confirmReceipt()
  assert.equal(calls.length, 1)
  assert.equal(calls[0].trackingNo, undefined)
  assert.equal(calls[0].unitCode, undefined)
  assert.equal(calls[0].palletCode, undefined)
})

test('parcel waybill is submitted as trackingNo and leaves unitCode for the server', async () => {
  const calls = []
  const page = setup(async payload => { calls.push(payload); return { unitType: 'PARCEL' } })
  page.unitType = 'PARCEL'; page.unitCode = ' sf561626 '; page.trackingNo = 'stale-from-pallet'; page.boxRows = [{ items: { 'SKU-TEST': 2 } }]
  await page.confirmReceipt()
  assert.equal(calls[0].trackingNo, 'sf561626')
  assert.equal(calls[0].unitCode, undefined)
  assert.equal(calls[0].palletCode, undefined)
})

test('batch waybill scans stay on the single parcel waybill input', () => {
  const page = setup(async () => ({}))
  page.unitType = 'PARCEL'; page.activeTarget = 'unit'; page.palletCode = ''
  page.handleScan('WAYBILL-ONE')
  assert.equal(page.unitCode, 'WAYBILL-ONE'); assert.equal(page.palletCode, '')
  assert.equal(page.activeTarget, 'unit')
  page.handleScan('WAYBILL-CORRECTED')
  assert.equal(page.unitCode, 'WAYBILL-CORRECTED')
})

test('parcel rows must be nonempty and summed quantities cannot exceed the order remainder', () => {
  const source = readFileSync(new URL('../src/pages/return-receipt/return-receipt.vue', import.meta.url), 'utf8')
  const component = vm.runInNewContext(source.match(/<script[^>]*>([\s\S]*?)<\/script>/)[1].replace(/^\s*import .*$/mg, '').replace('export default', 'globalThis.component ='), { ReturnLabelConfirmation: {}, PortalHeader: {}, ScanTargetInput: {} })
  const state = { current: {}, selectedItems: [{ skuCode: 'A' }], receiptQuantity: 4, unitType: 'PARCEL', boxRows: [{ items: { A: 2 } }, { items: { A: 2 } }], remaining: () => 3 }
  assert.equal(component.computed.canConfirm.call(state), false)
  state.remaining = () => 5
  assert.equal(component.computed.canConfirm.call(state), true)
  state.boxRows[1].items = {}
  assert.equal(component.computed.canConfirm.call(state), false)
})

test('one submission signs multiple mixed-SKU parcels sharing one waybill and independent labels', async () => {
  const calls = []
  const page = setup(async request => {
    calls.push(JSON.parse(JSON.stringify(request)))
    return { unitType: 'PARCEL', labels: [{ cartonMark: `RP-${calls.length}`, printableHtml: 'label' }], fullyMatched: false }
  })
  page.unitType = 'PARCEL'; page.unitCode = ' WAYBILL-BATCH '; page.trackingNo = 'stale'; page.selectedItems = [{ skuCode: 'SKU-TEST' }, { skuCode: 'SKU-B' }]
  page.boxRows = [{ items: { 'SKU-TEST': 1, 'SKU-B': 2 } }, { items: { 'SKU-TEST': 3 } }]
  await page.confirmReceipt()
  assert.equal(calls.length, 2)
  assert.deepEqual(calls[0].items, [{ skuCode: 'SKU-TEST', receivedQuantity: 1 }, { skuCode: 'SKU-B', receivedQuantity: 2 }])
  assert.deepEqual(calls[1].items, [{ skuCode: 'SKU-TEST', receivedQuantity: 3 }])
  assert.equal(calls[0].trackingNo, 'WAYBILL-BATCH'); assert.equal(calls[1].trackingNo, 'WAYBILL-BATCH')
  assert.notEqual(calls[0].idempotencyKey, calls[1].idempotencyKey)
  assert.deepEqual(Array.from(page.result.labels, row => row.cartonMark), ['RP-1', 'RP-2'])
})

test('failed multi-parcel batch resumes immutable requests without re-signing a successful parcel', async () => {
  const saved = new Map(), calls = []
  let failSecond = true
  const confirm = async request => {
    calls.push(JSON.parse(JSON.stringify(request)))
    if (request.items[0].receivedQuantity === 2 && failSecond) throw new Error('response lost')
    return { unitType: 'PARCEL', labels: [{ cartonMark: `RP-${request.items[0].receivedQuantity}`, printableHtml: 'label' }], fullyMatched: false }
  }
  const page = setup(confirm, saved)
  page.unitType = 'PARCEL'; page.unitCode = 'WAYBILL-BATCH'; page.boxRows = [{ items: { 'SKU-TEST': 1 } }, { items: { 'SKU-TEST': 2 } }]
  await page.confirmReceipt()
  assert.equal(page.receiptBatch.entries[0].result.labels[0].cartonMark, 'RP-1')
  failSecond = false
  const restored = setup(confirm, saved)
  await restored.confirmReceipt()
  assert.equal(calls.length, 3)
  assert.equal(calls[1].idempotencyKey, calls[2].idempotencyKey)
  assert.deepEqual(calls[1], calls[2])
  assert.equal(restored.result.labels.length, 2)
})

test('partial receipt continues the same order with fresh pallet measurements', async () => {
  const page = setup(async () => ({}))
  page.finishReceipt([{ fullyMatched: false }])
  assert.equal(page.result.continuationReturnNo, 'RT-TEST')
  let reopened
  page.openOrderValue = async returnNo => { reopened = returnNo; page.current = { returnNo } }
  await page.nextReceipt()
  assert.equal(reopened, 'RT-TEST')
  assert.equal(page.result, null)
  assert.equal(page.palletLength, '')
  assert.equal(page.palletWeight, '')
})

test('PALLET response failure keeps the draft and same idempotency key for retry', async () => {
  const calls = []
  const page = setup(async payload => { calls.push(JSON.parse(JSON.stringify(payload))); throw new Error('Response lost') })
  await page.confirmReceipt()
  assert.equal(page.current.returnNo, 'RT-TEST')
  assert.equal(page.busy, false)
  assert.equal(page.error.message, 'Response lost')
  await page.confirmReceipt()
  assert.equal(calls.length, 2)
  assert.equal(calls[0].idempotencyKey, calls[1].idempotencyKey)
})

test('continue signing returns to SKU scanning and accepts a fresh scan', () => {
  const page = setup(async () => ({}))
  page.finishReceipt([{ fullyMatched: false }])
  page.lookupCode = 'PREVIOUS-SKU'
  page.selectedSku = 'PREVIOUS-SKU'
  page.palletCheck = { palletCode: 'PLT-TEST' }
  page.photoFileIds = ['previous-photo']
  page.busy = true
  page.continueScanning()
  assert.ok(page.result)
  page.busy = false
  page.continueScanning()
  assert.equal(page.result, null)
  assert.equal(page.current, null)
  assert.equal(page.candidates, null)
  assert.equal(page.activeTarget, 'lookup')
  assert.equal(page.entryMode, 'SKU')
  assert.equal(page.lookupCode, '')
  assert.equal(page.selectedSku, '')
  assert.equal(page.palletCheck, null)
  assert.equal(page.palletLength, '')
  assert.equal(page.photoFileIds.length, 0)
  let scanned
  page.lookup = value => { scanned = value }
  page.handleScan('NEXT-SKU')
  assert.equal(scanned, 'NEXT-SKU')
  assert.equal(page.lookupCode, 'NEXT-SKU')
})