import { readFileSync, readdirSync } from 'node:fs'
import { extname, join, relative } from 'node:path'
import { describe, expect, it } from 'vitest'

const modulesRoot = join(process.cwd(), 'src/modules')

function vueFiles(directory: string): string[] {
  return readdirSync(directory, { withFileTypes: true }).flatMap((entry) => {
    const path = join(directory, entry.name)
    if (entry.isDirectory()) return vueFiles(path)
    return extname(entry.name) === '.vue' ? [path] : []
  })
}

function isPermanentlyReadOnly(tag: string): boolean {
  return (
    /\s(?:disabled|readonly)(?=\s|\/>|>)/.test(tag) ||
    /\s(?:disabled|readonly)=(?:""|'')/.test(tag) ||
    /\s(?::|v-bind:)(?:disabled|readonly)=(?:"true"|'true')/.test(tag)
  )
}

function hasMeaningfulPlaceholder(tag: string): boolean {
  const value = tag.match(/\s(?::|v-bind:)?placeholder\s*=\s*(["'])(.*?)\1/)?.[2]
  return Boolean(value?.trim())
}

describe('正式业务模块输入提示合同', () => {
  it('所有可编辑 el-input 与 el-input-number 都提供 placeholder', () => {
    const violations: string[] = []

    for (const file of vueFiles(modulesRoot)) {
      const source = readFileSync(file, 'utf8').replace(/<!--[\s\S]*?-->/g, (comment) =>
        comment.replace(/[^\n]/g, ' '),
      )
      const openingTag = /<el-input(?:-number)?\b(?:"[^"]*"|'[^']*'|[^'">])*>/g

      for (const match of source.matchAll(openingTag)) {
        const tag = match[0]
        if (isPermanentlyReadOnly(tag)) continue
        if (hasMeaningfulPlaceholder(tag)) continue

        const line = source.slice(0, match.index).split('\n').length
        violations.push(
          `${relative(modulesRoot, file).replaceAll('\\', '/')}:${line} ${tag.replace(/\s+/g, ' ')}`,
        )
      }
    }

    expect(violations, `缺少 placeholder：\n${violations.join('\n')}`).toEqual([])
  })
})