import assert from 'node:assert/strict'
import { readFileSync } from 'node:fs'
import test from 'node:test'
import { compile, computed, createSSRApp, h, nextTick, ref, watch } from 'vue'
import { renderToString } from 'vue/server-renderer'
import { parse } from '@vue/compiler-sfc'
import ts from 'typescript'
import { buildCustomerColumnFilterDefs } from '../src/views/crm/customer/columnFilterDefs'
import { stripSelfColumnParams } from '../src/composables/columnFacetContext'
import { buildPathLabelMapFromTreeRoots } from '../src/utils/tree-path'
const filter = 'views/m/crm/customer/CustomerFilters.vue'
const product = 'components/business/product-form-dialog/index.vue'
const cards = [
  'views/m/crm/quote/detail.vue',
  'views/m/crm/contract/detail.vue'
]
function source(file: string) {
  const descriptor = parse(
    readFileSync(new URL('../src/' + file, import.meta.url), 'utf8')
  ).descriptor
  return {
    descriptor,
    ast: ts.createSourceFile(file, descriptor.scriptSetup!.content, ts.ScriptTarget.Latest, true)
  }
}
function functions(
  file: string,
  names: string[],
  bindings: Record<string, any>,
  prelude = ''
): any {
  const { ast } = source(file)
  // Contract's existing loader delegates its identity guard. Execute the real dependencies;
  // omitting them throws ReferenceError inside the loader's intentionally silent catch.
  const methodNames = ['views/m/crm/contract/detail.vue', 'views/m/crm/quote/detail.vue'].includes(file) && names.includes('loadCategoryPaths')
    ? [...names, 'isCurrentLoad', 'currentRecordId']
    : names
  const runtimeBindings = methodNames !== names
    ? { disposed: false, props: { embedded: false }, ...bindings }
    : bindings
  const code = ts.transpile(
    ast.statements
      .filter((n) => ts.isFunctionDeclaration(n) && methodNames.includes(n.name?.text || ''))
      .map((n) => n.getText(ast))
      .join('\n'),
    { target: ts.ScriptTarget.ESNext }
  )
  return new Function(
    ...Object.keys(runtimeBindings),
    `${prelude}\n${code}\nreturn { ${names.map((n) => `${n}: typeof ${n} === 'undefined' ? undefined : ${n}`).join(',')} }`
  )(...Object.values(runtimeBindings))
}
function value(file: string, name: string, bindings: Record<string, any>) {
  const { ast } = source(file)
  const declaration = ast.statements
    .filter(ts.isVariableStatement)
    .flatMap((n) => n.declarationList.declarations)
    .find((n) => n.name.getText(ast) === name)
  assert.ok(declaration, `Missing ${name}`)
  return new Function(
    ...Object.keys(bindings),
    ts.transpile(`return ${declaration.initializer!.getText(ast)}`, {
      target: ts.ScriptTarget.ESNext
    })
  )(...Object.values(bindings))
}
async function render(template: string, bindings: Record<string, any>, components = {}) {
  const compiled = compile(template)
  return renderToString(
    createSSRApp({ components, render: () => compiled.call(bindings, bindings, []) })
  )
}
function filterState(query = {}, context = {}) {
  const defs = ref(buildCustomerColumnFilterDefs(() => [])),
    emitted: any[] = [],
    requests: any[] = [],
    ticks: Array<() => void> = []
  const b: any = {
    defs,
    datetimeDefs: computed(() => defs.value.filter((d) => d.type === 'datetime')),
    props: { query, context, modelValue: true },
    draft: ref({}),
    contextDraft: ref({}),
    error: ref(''),
    nextTick: (f: () => void) => ticks.push(f),
    singleKind: ref('view'),
    numberOpProp: ref(''),
    singleOpen: ref(false),
    apiTime: (s: string) => s.replace('T', ' '),
    emit: (...args: any[]) => emitted.push(args),
    clearFacets: () => {},
    facetKeywords: ref({}),
    facetVersions: {},
    facetContextVersion: 0,
    facetLoading: ref({}),
    enumOpen: ref(false),
    enumProp: ref(''),
    enumRemote: ref(false),
    facets: ref({}),
    enumOptions: ref([]),
    stripSelfColumnParams,
    unwrapRows: (x: any) => x,
    fetchCustomerColumnFacetValues: async (p: any) => {
      requests.push(p)
      return []
    }
  }
  const methods = functions(
    filter,
    [
      'syncFromProps',
      'resetDraft',
      'buildQuery',
      'openSingle',
      'onSingleConfirm',
      'resetAndApply',
      'searchFacet',
      'close'
    ],
    b,
    'let hydrating = false'
  )
  return { b, ...methods, emitted, requests, ticks }
}
const fields = [
  'lastTime',
  'nextTime',
  'dealTime',
  'intoPoolTime',
  'claimTime',
  'protectTime',
  'createTime',
  'updateTime'
]
for (const sortField of fields)
  for (const sortOrder of ['asc', 'desc'])
    test(`customer drops obsolete sort ${sortField}/${sortOrder}`, () => {
      const s = filterState({ sortField, sortOrder, mobile: ' 123 ' })
      s.syncFromProps()
      assert.deepEqual(s.buildQuery(), { mobile: '123' })
      assert.deepEqual(s.emitted, [])
      s.ticks.forEach((f: () => void) => f())
      assert.deepEqual(s.emitted, [])
    })
test('remaining view and number pickers still apply their selected values', () => {
  const s = filterState()
  s.syncFromProps()
  s.openSingle('view')
  s.onSingleConfirm({ selectedValues: ['mine'] })
  assert.equal(s.b.contextDraft.value.viewMode, 'mine')
  s.openSingle('numberOp', 'dealAmount')
  s.onSingleConfirm({ selectedValues: ['gte'] })
  assert.equal(s.b.draft.value.dealAmountOp, 'gte')
  assert.equal(s.b.singleOpen.value, false)
})
test('picker cancel and close do not restore obsolete sort; reset clears; facet strips pagination', async () => {
  const s = filterState({ sortField: 'createTime', sortOrder: 'desc' }, { page: 3, pageSize: 20 })
  s.syncFromProps()
  s.openSingle('view')
  s.b.singleOpen.value = false
  s.close()
  assert.equal(s.buildQuery().sortField, undefined)
  await s.searchFacet('customerName', '')
  for (const key of ['sortField', 'sortOrder', 'page', 'pageSize'])
    assert.equal(s.requests[0][key], undefined)
  assert.equal(s.buildQuery().sortField, undefined)
  s.resetAndApply()
  assert.deepEqual(s.buildQuery(), {})
  assert.deepEqual(s.emitted.at(-2), ['apply', { query: {}, keyword: '', viewMode: 'all' }])
  assert.match(source(filter).descriptor.template!.content, /@cancel="singleOpen = false"/)
})
test('customer filter UI omits sort controls and keeps the view picker', () => {
  const template = source(filter).descriptor.template!.content
  assert.doesNotMatch(template, /排序字段|排序方向|openSingle\('sort/)
  assert.match(template, /openSingle\('view'\)/)
})
const tree = [
  {
    id: 1,
    categoryName: '化工',
    children: [{ id: 2, categoryName: '无机', children: [{ id: 3, categoryName: '同名' }] }]
  },
  { id: '4', categoryName: '其他', children: [{ id: 5, categoryName: '同名' }] }
]
const pathMap = buildPathLabelMapFromTreeRoots(tree, {
  nameKey: 'categoryName',
  idKey: 'id',
  childrenKey: 'children'
})
for (const file of cards) {
  test(`${file} renders paths without changing snapshots`, async () => {
    const categoryPaths = ref(pathMap),
      { displayCategory } = functions(file, ['displayCategory'], { categoryPaths })
    assert.equal(typeof displayCategory, 'function')
    const template = source(file).descriptor.template!.content
    const match =
      template.match(/<van-field[^>]*label="产品分类"[^>]*\/>/) ||
      template.match(
        /<div class="mp-wv-kv(?: [^"]*)?"><span>产品分类<\/span><span>[^]*?<\/span><\/div>/
      )
    assert.ok(match)
    for (const [categoryId, categoryName, expected] of [
      [3, '旧名', '化工 / 无机 / 同名'],
      ['5', '同名', '其他 / 同名'],
      ['unknown', '快照', '快照'],
      ['', '', '—']
    ]) {
      const row = { categoryId, categoryName }
      const html = await render(
        match[0],
        { row, p: row, displayCategory },
        { VanField: { props: ['modelValue'], setup: (p: any) => () => h('span', p.modelValue) } }
      )
      assert.ok(html.includes(expected as string), html)
      assert.deepEqual(row, { categoryId, categoryName })
    }
    categoryPaths.value = new Map()
    assert.equal(displayCategory({ categoryId: 3, categoryName: '快照' }), '快照')
  })
  test(`${file} tree failure is harmless and dialog never fetches`, async () => {
    let calls = 0
    const categoryPaths = ref(new Map())
    const b = {
      categoryPaths,
      isPageVariant: ref(file !== cards[0]),
      categoryRequestSeq: 1,
      detailRequestSeq: 1,
      route: { name: file.includes('/contract/') ? 'MpCrmContractDetail' : 'MpCrmQuoteDetail', path: `/m/crm/${file.includes('/contract/') ? 'contract' : 'quote'}/q`, params: { id: 'q' } },
      fetchCategoryTree: async () => {
        calls++
        throw Error('offline')
      },
      buildPathLabelMapFromTreeRoots
    }
    const { loadCategoryPaths } = functions(file, ['loadCategoryPaths'], b)
    assert.equal(typeof loadCategoryPaths, 'function')
    await loadCategoryPaths(1, 'q')
    assert.equal(calls, file === cards[0] ? 0 : 1)
    b.isPageVariant.value = true
    await loadCategoryPaths(1, 'q')
    assert.equal(categoryPaths.value.size, 0)
  })
}
test('selected category path is page-only; dropdown name and numeric ID preserved', async () => {
  const fragment = source(product).descriptor.template!.content.match(
    /<el-tree-select[^]*?(?:\/>|<\/el-tree-select>)/
  )![0]
  const categoryOptions = ref(tree),
    categoryPaths = value(product, 'categoryPaths', {
      categoryOptions,
      computed,
      buildPathLabelMapFromTreeRoots
    }),
    formData = { categoryId: 3 }
  const ElTreeSelect = {
    props: ['modelValue', 'data'],
    setup:
      (p: any, { slots }: any) =>
      () =>
        h('section', [
          h('div', slots.label?.({ label: '同名', value: p.modelValue }) || '同名'),
          h('aside', p.data[0].categoryName)
        ])
  }
  const page = await render(
    fragment,
    {
      formData,
      categoryOptions: tree,
      categoryPaths: categoryPaths.value,
      categorySnapshot: null,
      isPageVariant: true
    },
    { ElTreeSelect }
  )
  const dialog = await render(
    fragment,
    { formData, categoryOptions: tree, categoryPaths: categoryPaths.value, isPageVariant: false },
    { ElTreeSelect }
  )
  assert.match(page, /化工 \/ 无机 \/ 同名/)
  assert.doesNotMatch(dialog, /化工 \/ 无机/)
  assert.match(page, /<aside>化工<\/aside>/)
  assert.equal(formData.categoryId, 3)
})

for (const file of cards) {
  test(`${file} loads CRM tree and ignores stale detail responses`, async () => {
    const categoryPaths = ref(new Map())
    const b = {
      categoryPaths,
      isPageVariant: ref(true),
      categoryRequestSeq: 2,
      detailRequestSeq: 2,
      route: { name: file.includes('/contract/') ? 'MpCrmContractDetail' : 'MpCrmQuoteDetail', path: `/m/crm/${file.includes('/contract/') ? 'contract' : 'quote'}/current`, params: { id: 'current' } },
      fetchCategoryTree: async () => ({ data: tree }),
      buildPathLabelMapFromTreeRoots
    }
    const { loadCategoryPaths } = functions(file, ['loadCategoryPaths'], b)
    if (file !== cards[0]) {
      await loadCategoryPaths(1, 'current')
      assert.equal(categoryPaths.value.size, 0)
      await loadCategoryPaths(2, 'old')
      assert.equal(categoryPaths.value.size, 0)
    }
    await loadCategoryPaths(2, 'current')
    assert.equal(categoryPaths.value.get('3'), '化工 / 无机 / 同名')
    assert.deepEqual(tree[0].children[0].categoryName, '无机')
    const imports = source(file)
      .ast.statements.filter(ts.isImportDeclaration)
      .map((n) => n.getText())
    assert.ok(
      imports.some((n) => n.includes('fetchCategoryTree') && n.includes('@/api/crm/product'))
    )
  })
}
test('actual hydration watcher emits no empty query; subsequent edit still uses 300ms live apply', async () => {
  const s = filterState({ sortField: 'createTime', sortOrder: 'asc', mobile: '123' })
  const { ast } = source(filter)
  const names = ['syncFromProps', 'resetDraft', 'normalizeSortPair', 'buildQuery']
  const declarations = ast.statements.filter(
    (n) => ts.isFunctionDeclaration(n) && names.includes(n.name?.text || '')
  )
  const live = ast.statements.find(
    (n) =>
      ts.isVariableStatement(n) &&
      n.declarationList.declarations.some((d) => d.name.getText(ast) === 'scheduleLiveApply')
  )!
  const watcher = ast.statements.find(
    (n) =>
      ts.isExpressionStatement(n) &&
      ts.isCallExpression(n.expression) &&
      n.expression.expression.getText(ast) === 'watch' &&
      n.expression.arguments[0].getText(ast).includes('[draft, contextDraft]')
  )!
  let pending: () => void | undefined
  const bindings = {
    ...s.b,
    rangeError: value(filter, 'rangeError', { ...s.b, computed }),
    nextTick,
    watch: (...args: any[]) => {
      return (watch as any)(...args)
    },
    useDebounceFn: (fn: () => void, delay: number) => {
      assert.equal(delay, 300)
      return () => {
        pending = fn
      }
    }
  }
  const code = ts.transpile(
    [
      'let hydrating = false',
      ...declarations.map((n) => n.getText(ast)),
      live.getText(ast),
      'const stop = ' + watcher.getText(ast),
      'return { syncFromProps, stop }'
    ].join('\n'),
    { target: ts.ScriptTarget.ESNext }
  )
  const methods = new Function(...Object.keys(bindings), code)(...Object.values(bindings))
  methods.syncFromProps()
  await nextTick()
  assert.equal(pending, undefined)
  assert.deepEqual(s.emitted, [])
  s.b.draft.value.mobile = '456'
  await nextTick()
  assert.ok(pending)
  pending!()
  assert.deepEqual(s.emitted.at(-1), [
    'apply',
    {
      query: { mobile: '456' },
      keyword: '',
      viewMode: 'all'
    }
  ])
  methods.stop()
})

test('page product edit keeps matching category snapshot when tree fails; no stale names or payload additions', async () => {
  const categoryOptions = ref<any[]>([])
  const categoryPaths = value(product, 'categoryPaths', {
    categoryOptions,
    computed,
    buildPathLabelMapFromTreeRoots
  })
  const categorySnapshot = ref<{ id: string; name: string } | null>(null)
  const props = { productId: 'product-A' }
  const formData: any = {}
  let response: any = {
    id: 'product-A',
    productName: '产品',
    categoryId: 'cat3',
    categoryName: '原叶名'
  }
  const payloads: any[] = []
  const b = {
    props,
    formData,
    categoryOptions,
    categoryPaths,
    categorySnapshot,
    isPageVariant: ref(true),
    dialogLoading: ref(false),
    fetchCategoryTree: async () => {
      throw Error('tree unavailable')
    },
    fetchProductDetail: async () => ({ data: response }),
    ElMessage: { error: () => assert.fail('detail must not fail'), success: () => {} },
    emit: () => {},
    visible: ref(true),
    formRef: ref({ validate: async () => true }),
    productImagesUploadRef: ref(null),
    submitLoading: ref(false),
    isEdit: ref(true),
    fetchUpdateProduct: async (p: any) => {
      payloads.push(p)
      return { data: p }
    }
  }
  const methods = functions(
    product,
    ['handleOpen', 'loadCategoryOptions', 'resetFormData', 'submitForm'],
    b
  )
  const fragment = source(product).descriptor.template!.content.match(
    /<el-tree-select[^]*?(?:\/>|<\/el-tree-select>)/
  )![0]
  const ElTreeSelect = {
    props: ['modelValue'],
    setup:
      (p: any, { slots }: any) =>
      () =>
        h(
          'span',
          slots.label?.({ value: p.modelValue, label: p.modelValue }) || String(p.modelValue)
        )
  }
  const label = () =>
    render(
      fragment,
      {
        ...b,
        categoryOptions: categoryOptions.value,
        categoryPaths: categoryPaths.value,
        categorySnapshot: categorySnapshot.value,
        isPageVariant: b.isPageVariant.value
      },
      { ElTreeSelect }
    )
  await methods.handleOpen()
  assert.deepEqual(categoryOptions.value, [])
  assert.match(await label(), /原叶名/)
  assert.equal(formData.categoryId, 'cat3')
  assert.equal(formData.categoryName, undefined)
  await methods.submitForm()
  assert.equal(payloads[0].categoryId, 'cat3')
  assert.equal(payloads[0].categoryName, undefined)
  assert.equal(payloads[0].categorySnapshot, undefined)
  formData.categoryId = 'cat4'
  assert.doesNotMatch(await label(), /原叶名/)
  formData.categoryId = ''
  assert.doesNotMatch(await label(), /原叶名/)
  methods.resetFormData()
  formData.categoryId = 'cat3'
  assert.doesNotMatch(await label(), /原叶名/)
  props.productId = 'product-B'
  response = { id: 'product-B', categoryId: 'cat3', categoryName: '新会话名称' }
  await methods.handleOpen()
  assert.match(await label(), /新会话名称/)
  assert.doesNotMatch(await label(), /原叶名/)
  props.productId = ''
  await methods.handleOpen()
  formData.categoryId = 'cat3'
  assert.doesNotMatch(await label(), /新会话名称/)
  b.isPageVariant.value = false
  props.productId = 'product-B'
  await methods.handleOpen()
  assert.match(await label(), /cat3/)
  assert.doesNotMatch(await label(), /新会话名称/)
})