import assert from 'node:assert/strict'
import { readFileSync } from 'node:fs'
import test from 'node:test'
import { parse } from '@vue/compiler-sfc'
import ts from 'typescript'
import * as vue from 'vue'
import * as model from '../src/views/pl/quota-cert/model'
import { useClientColumnFilters } from '../src/composables/useClientColumnFilters'
import { usePersistedListColumns } from '../src/composables/usePersistedListColumns'

function deferred() {
  let resolve!: (value: any) => void
  let reject!: (reason: any) => void
  const promise = new Promise<any>((r, j) => {
    resolve = r
    reject = j
  })
  return { promise, resolve, reject }
}
function harness() {
  const reads: string[] = [],
    writes: any[] = [],
    parses: any[] = [],
    messages: string[] = []
  let certData: any = {}
  let saveError = false
  let pendingSave: ReturnType<typeof deferred> | undefined
  let pendingGet: ReturnType<typeof deferred> | undefined
  const user = vue.reactive({ accessToken: 'synthetic', getUserInfo: {} })
  const contractRequests: any[] = []
  const productRequests: any[] = []
  let confirmSwitch = true
  let pendingOptions: ReturnType<typeof deferred> | undefined
  const env = {
    ...Object.fromEntries(
      Object.entries(vue).filter(([key]) => /^[a-zA-Z_$][\w$]*$/.test(key) && key !== 'default')
    ),
    ...model,
    useClientColumnFilters,
    usePersistedListColumns,
    useListTableViewportHeight: () => ({ tableHeight: vue.ref(400) }),
    useRoute: () => ({ query: {} }),
    useUserStore: () => user,
    onMounted: () => {},
    onBeforeUnmount: () => {},
    fetchGetMenuCodes: async () => ({ all: true }),
    ElMessage: {
      warning: (s: string) => messages.push(s),
      success: (s: string) => messages.push(s)
    },
    ElMessageBox: {
      confirm: async () => {
        if (!confirmSwitch) throw new Error('cancel')
      }
    },
    quotaCertApi: {
      contracts: (keyword: string) => {
        const pending = deferred()
        contractRequests.push({ keyword, ...pending })
        return pending.promise
      },
      products: (id: string) => {
        const pending = deferred()
        productRequests.push({ id, ...pending })
        return pending.promise
      },
      certificateContracts: async () => [
        { id: 'old', contractNo: '历史合同', contractName: '真实标签' }
      ],
      list: async (kind: string) => {
        reads.push(kind)
        return pendingOptions ? pendingOptions.promise : []
      },
      get: async (kind: string, id: string) =>
        pendingGet
          ? pendingGet.promise
          : {
              ...model.newCert(kind as any),
              id,
              certNo: 'EXISTING',
              attachmentUrls: 'a.png,b.png',
              ...certData
            },
      save: async (kind: string, body: any, id?: string) => {
        writes.push({ kind, body, id })
        if (saveError) throw new Error('保存失败')
        if (pendingSave) await pendingSave.promise
      },
      recognize: (kind: string, url: string) => {
        const pending = deferred()
        parses.push({ kind, url, ...pending })
        return pending.promise
      }
    }
  }
  const script = parse(
    readFileSync(new URL('../src/views/pl/quota-cert/index.vue', import.meta.url), 'utf8')
  ).descriptor.scriptSetup!.content
  const source = ts.createSourceFile('page.ts', script, ts.ScriptTarget.Latest, true)
  const statements = source.statements.filter((s) => !ts.isImportDeclaration(s))
  const names = statements.flatMap((s) =>
    ts.isVariableStatement(s)
      ? s.declarationList.declarations
          .filter((d) => ts.isIdentifier(d.name))
          .map((d) => d.name.getText(source))
      : ts.isFunctionDeclaration(s) && s.name
        ? [s.name.text]
        : []
  )
  const code = ts.transpile(statements.map((s) => s.getText(source)).join('\n'), {
    target: ts.ScriptTarget.ESNext
  })
  const scope = vue.effectScope()
  const state = scope.run(() =>
    new Function(...Object.keys(env), `${code}; return {${names.join(',')}}`)(...Object.values(env))
  )
  state.formRef.value = { validate: async () => true, clearValidate: () => {} }
  return {
    state,
    user,
    deferSave: () => (pendingSave = deferred()),
    deferGet: () => (pendingGet = deferred()),
    contractRequests,
    productRequests,
    setCert: (value: any) => {
      certData = value
    },
    failSave: () => {
      saveError = true
    },
    reads,
    writes,
    parses,
    messages,
    deferOptions: () => {
      pendingOptions = deferred()
      return pendingOptions
    },
    cancelSwitch: () => {
      confirmSwitch = false
    },
    stop: () => scope.stop()
  }
}

test('type changes immediately while options load and stale options cannot enter a later form', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    const options = h.deferOptions()
    const switching = s.changeFormKind('transport')
    assert.equal(s.formKind.value, 'transport')
    await s.changeFormKind('purchase')
    options.resolve([{ id: 'old-option' }])
    await switching
    assert.equal(s.formKind.value, 'purchase')
    assert.deepEqual(s.purchases.value, [])
  } finally {
    h.stop()
  }
})

test('new form type changes without closing dialog or changing the list, and drives save', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    assert.equal(s.formKind?.value, 'purchase')
    await s.changeFormKind('transport')
    assert.equal(s.formKind.value, 'transport')
    assert.equal(s.kind.value, 'purchase')
    assert.equal(s.formVisible.value, true)
    assert.ok(s.formFields.value.some(([key]: string[]) => key === 'shipperName'))
    assert.ok(!s.formFields.value.some(([key]: string[]) => key === 'buyerName'))
    s.form.value.shipperName = '合成托运单位'
    await s.save()
    assert.equal(h.writes[0].kind, 'transport')
    assert.equal(h.writes[0].body.shipperName, '合成托运单位')
    assert.equal(h.writes[0].body.buyerName, undefined)
    assert.equal(s.kind.value, 'transport')
  } finally {
    h.stop()
  }
})

test('switch clears old certificate data after confirmation, preserving attachments and mode', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.form.value.certNo = 'PURCHASE-1'
    s.form.value.entryMode = 'image_parse'
    s.form.value.attachmentUrls = 'one.png'
    s.form.value.remark = '保留备注'
    await s.changeFormKind('transport')
    assert.equal(s.form.value.certNo, '')
    assert.equal(s.form.value.attachmentUrls, 'one.png')
    assert.equal(s.form.value.entryMode, 'image_parse')
    assert.equal(s.form.value.remark, '保留备注')
    assert.equal(s.form.value.buyerName, undefined)
  } finally {
    h.stop()
  }
})

test('cancel type switch and existing certificate edit preserve data and original type', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.form.value.certNo = 'KEEP'
    h.cancelSwitch()
    s.selectedFormKind.value = 'transport'
    await s.changeFormKind('transport')
    assert.equal(s.formKind.value, 'purchase')
    assert.equal(s.selectedFormKind.value, 'purchase')
    assert.equal(s.form.value.certNo, 'KEEP')
    await s.edit({ id: 'existing' })
    await s.changeFormKind('transport')
    assert.equal(s.formKind.value, 'purchase')
    assert.equal(s.form.value.attachmentUrls, 'a.png,b.png')
  } finally {
    h.stop()
  }
})

test('single attachment is automatically selected, parsing uses form type and preserves manual edits', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    await s.changeFormKind('transport')
    s.form.value.attachmentUrls = 'one.png'
    await vue.nextTick()
    assert.equal(s.recognitionImage.value, 'one.png')
    s.form.value.certNo = 'MANUAL'
    s.edited.add('certNo')
    const parsing = s.recognize()
    assert.equal(h.parses.length, 1)
    assert.equal(h.parses[0].kind, 'transport')
    assert.equal(h.parses[0].url, 'one.png')
    h.parses[0].resolve({
      candidates: { certNo: 'OCR', shipperName: '合成托运单位' },
      invalidFields: {}
    })
    await parsing
    assert.equal(s.form.value.certNo, 'MANUAL')
    assert.equal(s.form.value.shipperName, '合成托运单位')
  } finally {
    h.stop()
  }
})

test('missing, removed, multiple new attachments and uploads in progress never start parsing', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    const empty = s.recognize()
    assert.equal(h.parses.length, 0)
    await empty
    s.form.value.attachmentUrls = 'one.png'
    await vue.nextTick()
    s.form.value.attachmentUrls = ''
    await vue.nextTick()
    assert.equal(s.recognitionImage.value, '')
    await s.recognize()
    s.form.value.attachmentUrls = 'one.png,two.png'
    s.recognitionImage.value = 'one.png'
    await s.recognize()
    s.form.value.attachmentUrls = 'one.png'
    s.certAttachments.value = { hasUploading: () => true }
    await s.recognize()
    assert.equal(h.parses.length, 0)
    await s.save()
    assert.equal(h.writes.length, 0)
  } finally {
    h.stop()
  }
})

test('closed or switched forms reject delayed recognition results', async () => {
  for (const action of ['close', 'switch']) {
    const h = harness(),
      s = h.state
    try {
      await s.edit()
      s.form.value.attachmentUrls = 'one.png'
      await vue.nextTick()
      const parsing = s.recognize()
      assert.equal(h.parses.length, 1)
      if (action === 'close') {
        s.formVisible.value = false
        await s.edit()
      } else await s.changeFormKind('transport')
      h.parses[0].resolve({ candidates: { certNo: 'OLD' }, invalidFields: {} })
      await parsing
      assert.equal(s.form.value.certNo, '')
      assert.equal(s.recognizing.value, false)
    } finally {
      h.stop()
    }
  }
})

test('多合同一次保存且失败保留输入；受限可见关系只展示并省略提交', async () => {
  const h = harness(),
    s = h.state
  const bindings = [
    {
      id: 'b',
      contractId: 'old',
      linkStatus: 'inactive',
      remark: '保留',
      orderNum: 4,
      products: [
        {
          id: 'scope',
          contractProductId: 'p',
          scopeStatus: 'inactive',
          remark: '范围',
          orderNum: 2
        }
      ]
    }
  ]
  try {
    h.setCert({ contractBindings: bindings, bindingsEditable: true })
    await s.edit({ id: 'existing' })
    assert.deepEqual(s.form.value.contractBindings, bindings)
    assert.equal(s.bindingContracts.value[0].contractNo, '历史合同')
    s.addContractBinding('new')
    assert.equal(s.form.value.contractBindings.length, 2)
    h.failSave()
    await assert.rejects(s.save(), /保存失败/)
    assert.equal(h.writes.length, 1)
    assert.equal(h.writes[0].body.contractBindings[0].products[0].id, 'scope')
    assert.equal(s.formVisible.value, true)
    assert.equal(s.form.value.contractBindings.length, 2)
    s.formVisible.value = false
    h.setCert({ contractBindings: bindings, bindingsEditable: false })
    await s.edit({ id: 'limited' })
    s.addContractBinding('forbidden')
    assert.equal(s.form.value.contractBindings.length, 1)
    await assert.rejects(s.save())
    assert.equal('contractBindings' in h.writes[1].body, false)
  } finally {
    h.stop()
  }
})

test('产品勾选往返保留原范围ID；关闭重开后拒绝旧合同和产品请求', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.addContractBinding('c')
    h.productRequests[0].resolve([{ id: 'p' }, { id: 'p2' }])
    await vue.nextTick()
    s.form.value.contractBindings[0].products = [
      { id: 'scope', contractProductId: 'p', scopeStatus: 'inactive' }
    ]
    s.setBindingProducts(0, ['p', 'p2'])
    assert.equal(s.form.value.contractBindings[0].products[0].id, 'scope')
    assert.equal(s.form.value.contractBindings[0].products[0].scopeStatus, 'inactive')
    const search = s.searchBindingContracts('old')
    const products = s.loadBindingProducts('c')
    s.formVisible.value = false
    await s.edit()
    h.contractRequests.at(-1).resolve([{ id: 'stale', contractNo: '旧合同' }])
    h.productRequests.forEach((r) => r.resolve([{ id: 'stale', productName: '旧产品' }]))
    await Promise.all([search, products])
    assert.deepEqual(s.bindingContracts.value, [])
    assert.deepEqual(s.bindingProducts.value, {})
  } finally {
    h.stop()
  }
})

test('移除后重选同一合同保留主关联和产品范围身份', async () => {
  const h = harness(),
    s = h.state
  try {
    h.setCert({
      contractBindings: [
        {
          id: 'binding',
          contractId: 'old',
          linkStatus: 'inactive',
          products: [{ id: 'scope', contractProductId: 'p', scopeStatus: 'inactive' }]
        }
      ]
    })
    await s.edit({ id: 'cert' })
    s.removeContractBinding(0)
    s.addContractBinding('old')
    assert.equal(s.form.value.contractBindings[0].id, 'binding')
    assert.equal(s.form.value.contractBindings[0].products[0].id, 'scope')
  } finally {
    h.stop()
  }
})

test('后发合同搜索覆盖先发，租户切换使保存和读取旧结果失效', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    const first = s.searchBindingContracts('first'),
      second = s.searchBindingContracts('second')
    h.contractRequests[1].resolve([{ id: 'second', contractNo: 'SECOND', contractName: '' }])
    await second
    h.contractRequests[0].resolve([{ id: 'first', contractNo: 'FIRST', contractName: '' }])
    await first
    assert.equal(s.bindingContracts.value[0].id, 'second')
    const pending = h.deferSave()
    const saving = s.save()
    await vue.nextTick()
    h.user.accessToken = ''
    pending.resolve({})
    await saving
    assert.equal(h.messages.includes('证件已保存'), false)
    assert.equal(s.formVisible.value, false)
    const get = h.deferGet(),
      editing = s.edit({ id: 'old' })
    h.user.getUserInfo = { tenantNo: 'other' }
    get.resolve({ ...model.newCert('purchase'), contractBindings: [] })
    await editing
    assert.equal(s.formVisible.value, false)
  } finally {
    h.stop()
  }
})

test('新增多合同连同证面成功提交一次，移除全部提交明确空集合', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.addContractBinding('one')
    s.addContractBinding('two')
    h.productRequests[0].resolve([{ id: 'p1' }])
    h.productRequests[1].resolve([{ id: 'p2' }])
    await vue.nextTick()
    s.setBindingProducts(0, ['p1'])
    s.setBindingProducts(1, ['p2'])
    s.form.value.certNo = 'MULTI'
    await s.save()
    assert.equal(h.writes.length, 1)
    assert.equal(h.writes[0].body.certNo, 'MULTI')
    assert.deepEqual(
      h.writes[0].body.contractBindings.map((b: any) => b.contractId),
      ['one', 'two']
    )
    assert.equal(s.formVisible.value, false)
    h.setCert({ contractBindings: [{ id: 'b', contractId: 'one', products: [] }] })
    await s.edit({ id: 'existing' })
    s.removeContractBinding(0)
    await s.save()
    assert.deepEqual(h.writes[1].body.contractBindings, [])
  } finally {
    h.stop()
  }
})

test('同合同产品后发请求优先，移除重加使移除前请求失效', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.addContractBinding('c')
    const second = s.loadBindingProducts('c')
    h.productRequests[1].resolve([{ id: 'new', productName: '新产品' }])
    await second
    h.productRequests[0].resolve([{ id: 'old', productName: '旧产品' }])
    await vue.nextTick()
    assert.equal(s.bindingProducts.value.c[0].id, 'new')
    const old = s.loadBindingProducts('c')
    s.removeContractBinding(0)
    s.addContractBinding('c')
    h.productRequests[2].resolve([{ id: 'removed', productName: '移除前' }])
    await old
    assert.equal(s.bindingProducts.value.c, undefined)
    assert.equal(s.bindingProductLoading.value.c, true)
    h.productRequests[3].resolve([{ id: 'readded', productName: '重加后' }])
    await vue.nextTick()
    assert.equal(s.bindingProducts.value.c[0].id, 'readded')
  } finally {
    h.stop()
  }
})

test('产品加载失败可再次展开重试，加载中不能改选择', async () => {
  const h = harness(),
    s = h.state
  try {
    await s.edit()
    s.addContractBinding('c')
    h.productRequests[0].reject(new Error('network'))
    await vue.nextTick()
    await vue.nextTick()
    assert.equal(s.bindingProductLoading.value.c, false)
    const retry = s.loadBindingProducts('c')
    s.setBindingProducts(0, ['invalid'])
    assert.deepEqual(s.form.value.contractBindings[0].products, [])
    h.productRequests[1].resolve([{ id: 'p', productName: '产品' }])
    await retry
    s.setBindingProducts(0, ['p'])
    assert.equal(s.form.value.contractBindings[0].products[0].contractProductId, 'p')
  } finally {
    h.stop()
  }
})