import test from 'node:test'
import assert from 'node:assert/strict'
import { readFileSync } from 'node:fs'
import { compileTemplate, parse } from '@vue/compiler-sfc'

const pages = [
  ['asset-information', 'div', 'PollingStateDialog', 'pollingStateTarget'],
  ['device-list', 'ArtTableFullScreen', 'PollingBatchDialog', 'pollingBatchIds'],
  ['iot-card-management', 'ArtTableFullScreen', 'PollingBatchDialog', 'pollingBatchIds']
]

for (const [page, rootTag, dialogTag, dialogState] of pages) {
  test(`${page} keeps its polling dialog inside one transition-compatible page root`, () => {
    const filename = `src/views/asset-management/${page}/index.vue`
    const { descriptor, errors } = parse(readFileSync(filename, 'utf8'), { filename })
    assert.deepEqual(errors, [])
    const roots = descriptor.template.ast.children.filter((node) => node.type === 1)
    assert.equal(roots.length, 1, 'sibling polling dialogs turn the page into a Fragment')
    assert.equal(roots[0].tag, rootTag, 'preserve the existing page/layout root')

    const dialog = roots[0].children.find((node) => node.type === 1 && node.tag === dialogTag)
    assert.ok(dialog, 'the polling dialog must remain available inside the page root')
    const condition = dialog.props.find((prop) => prop.type === 7 && prop.name === 'if')
    assert.equal(condition?.exp.content, dialogState)
    const close = dialog.props.find(
      (prop) => prop.type === 7 && prop.name === 'on' && prop.arg?.content === 'close'
    )
    assert.equal(close?.exp.content, `${dialogState} = null`)

    // In production, a Fragment root never completes Transition's out-in leave,
    // leaving KeepAlive on a comment placeholder for every subsequent route.
    const compiled = compileTemplate({
      source: descriptor.template.content,
      filename,
      id: page,
      isProd: true,
      compilerOptions: { expressionPlugins: ['typescript'] }
    })
    assert.deepEqual(compiled.errors, [])
    assert.equal(compiled.ast.codegenNode.type, 13, 'the page must compile to a single VNode')
    assert.equal(typeof compiled.ast.codegenNode.tag, 'string', 'never compile a Fragment root')
  })
}

test('the table page layout provides a native element root for route transitions', () => {
  const filename = 'src/components/core/tables/ArtTableFullScreen.vue'
  const { descriptor } = parse(readFileSync(filename, 'utf8'), { filename })
  const roots = descriptor.template.ast.children.filter((node) => node.type === 1)
  assert.equal(roots.length, 1)
  assert.equal(roots[0].tag, 'div')
})