import fs from 'node:fs'
import path from 'node:path'

import type { Page } from '@playwright/test'

import { expect } from './fixtures'

interface DemoSeedRoute {
  path: string
  markerTexts?: string[]
  codes?: string[]
}

interface DemoSeedManifest {
  schemaVersion: number
  seedId: string
  entities: Record<string, Array<{ code?: string; slug?: string; name?: string; category?: string }>>
  e2eRoutes: Record<string, DemoSeedRoute>
}

interface DatasetRequirement {
  label: string
  selector: string
  minItems?: number
  manifestEntityKey?: string
  entityCategory?: string
  markerScopeSelector?: string
}

interface ValueRequirement {
  label: string
  selector: string
  minimumLength?: number
}

interface RouteAcceptance {
  datasets?: DatasetRequirement[]
  values?: ValueRequirement[]
}

export interface NonEmptyEvidence {
  route: string
  seedId: string
  datasets: Array<{
    label: string
    selector: string
    count: number
    manifestEntityKey?: string
    matchedMarker?: string
  }>
  values: Array<{ label: string; selector: string; valueLength: number }>
}

const manifestFilename = () => path.resolve(
  process.env.E2E_DEMO_SEED_MANIFEST?.trim() || '../ai_person_api/scripts/demo_seed_manifest.json',
)

let cachedManifest: DemoSeedManifest | undefined

function demoSeedManifest() {
  if (cachedManifest) return cachedManifest
  const filename = manifestFilename()
  if (!fs.existsSync(filename)) {
    throw new Error(`演示数据清单不存在：${filename}。非空页面验收不允许退回到空数据截图。`)
  }
  const parsed = JSON.parse(fs.readFileSync(filename, 'utf8')) as Partial<DemoSeedManifest>
  if (!parsed.seedId || !parsed.entities || typeof parsed.entities !== 'object'
    || !parsed.e2eRoutes || typeof parsed.e2eRoutes !== 'object') {
    throw new Error(`演示数据清单格式无效：${filename}`)
  }
  cachedManifest = parsed as DemoSeedManifest
  return cachedManifest
}

const tableRows = '.el-table__body-wrapper tbody tr.el-table__row'

/**
 * 每个正式路由的“有数据”定义。这里只使用页面真实渲染出来的行、卡片和表单值；
 * 不读取前端 store，也不拦截或伪造网络响应。
 */
const routeAcceptance: Record<string, RouteAcceptance> = {
  overview: {
    datasets: [
      { label: '最近智能体', selector: '.overview-agent-list > button', manifestEntityKey: 'agents', markerScopeSelector: '.overview-agent-list' },
      { label: '最近口播视频', selector: '.overview-video-grid > button', manifestEntityKey: 'videos', markerScopeSelector: '.overview-video-grid' },
      // Recent feeds are intentionally ordered by time. Earlier lifecycle
      // tests create real jobs, so durable DEMO jobs may legitimately fall
      // outside the five visible rows; require non-empty real rows here and
      // rely on the run's seed summary for durable-job existence.
      { label: '最近制作任务', selector: '.overview-job-queue > button' },
    ],
  },
  agents: { datasets: [{ label: '智能体列表', selector: 'tbody tr[data-testid^="agent-row-"]', manifestEntityKey: 'agents', markerScopeSelector: '.agent-table-panel' }] },
  'agent-projects': { datasets: [{ label: '智能体组别', selector: tableRows, manifestEntityKey: 'agentProjects', markerScopeSelector: '.projects-panel' }] },
  'chat-history': { datasets: [{ label: '会话记录', selector: tableRows, manifestEntityKey: 'chatSessions', markerScopeSelector: '.history-panel' }] },
  'wake-words': { datasets: [{ label: '唤醒词', selector: tableRows, manifestEntityKey: 'wakeWords', markerScopeSelector: '.wake-panel' }] },
  // 021 迁移会主动清除不可安全转换的旧终端；此页验收 V2 表格容器，
  // 真实终端数据由专用生命周期用例创建、激活并精确清理，不再依赖 demo manifest。
  'remote-control': { datasets: [{ label: '远程终端 V2 表格', selector: '.desktop-terminal-table .el-table' }] },
  'video-create': { datasets: [{ label: '视频制作可选数字形象', selector: '.studio-avatar-list > button' }] },
  videos: {
    datasets: [
      { label: '成片文件夹', selector: '.video-folder-strip > article', manifestEntityKey: 'videoFolders', markerScopeSelector: '.video-folder-strip' },
      { label: '成片视频', selector: '.video-library-grid > .video-library-card', manifestEntityKey: 'videos', markerScopeSelector: '.video-library-grid' },
    ],
  },
  avatars: { datasets: [{ label: '数字形象', selector: '.avatar-grid > .avatar-card', manifestEntityKey: 'avatars', markerScopeSelector: '.avatar-grid' }] },
  'voice-clones': { datasets: [{ label: '声音克隆能力', selector: '.capability-grid > .capability-card', manifestEntityKey: 'capabilities', entityCategory: 'VOICE_CLONE', markerScopeSelector: '.capability-grid' }] },
  'ai-models': { datasets: [{ label: 'AI 模型能力', selector: '.capability-grid > .capability-card', manifestEntityKey: 'capabilities', entityCategory: 'LLM', markerScopeSelector: '.capability-grid' }] },
  'voice-models': { datasets: [{ label: '语音模型能力', selector: '.capability-grid > .capability-card', manifestEntityKey: 'capabilities', entityCategory: 'TTS', markerScopeSelector: '.capability-grid' }] },
  'asr-models': { datasets: [{ label: 'ASR 模型能力', selector: '.capability-grid > .capability-card', manifestEntityKey: 'capabilities', entityCategory: 'ASR', markerScopeSelector: '.capability-grid' }] },
  'scene-materials': { datasets: [{ label: '场景素材', selector: '.capability-grid > .capability-card', manifestEntityKey: 'capabilities', entityCategory: 'SCENE', markerScopeSelector: '.capability-grid' }] },
  knowledge: { datasets: [{ label: '知识库', selector: '.knowledge-base-card', manifestEntityKey: 'knowledgeBases', markerScopeSelector: '.knowledge-library-page' }] },
  'sensitive-words': { datasets: [{ label: '敏感词', selector: tableRows, manifestEntityKey: 'sensitiveWords', markerScopeSelector: '.words-panel' }] },
  'hot-words': { datasets: [{ label: '热词', selector: tableRows, manifestEntityKey: 'hotWords', markerScopeSelector: '.hot-word-panel' }] },
  // This table is server-paginated by newest first for the same reason as the
  // overview queue. The dedicated jobs lifecycle test separately exercises
  // DEMO/created-job search, paging and detail persistence.
  jobs: { datasets: [{ label: '制作任务', selector: '.task-table-v2 tbody > tr' }] },
  tools: { datasets: [{ label: '业务工具', selector: '.tool-grid > .tool-card', manifestEntityKey: 'integrationTools', markerScopeSelector: '.tool-grid' }] },
  users: { datasets: [{ label: '用户', selector: '.users-table .el-table__body-wrapper tbody tr.el-table__row' }] },
  departments: { datasets: [{ label: '部门', selector: '.department-panel .el-table__body-wrapper tbody tr.el-table__row' }] },
  roles: { datasets: [{ label: '角色', selector: '.roles-table .el-table__body-wrapper tbody tr.el-table__row' }] },
  permissions: {
    datasets: [
      { label: '可配置角色', selector: '.role-selector > button' },
      { label: '权限项', selector: '.permission-list > .permission-item' },
    ],
  },
  'settings-general': {
    datasets: [{ label: '基础设置分区', selector: '.system-config-section', minItems: 3 }],
    values: [
      { label: '平台名称', selector: 'input[placeholder="请输入系统名称"]', minimumLength: 2 },
      { label: '平台简称', selector: 'input[placeholder="请输入系统简称"]', minimumLength: 2 },
    ],
  },
  'settings-integrations': {
    datasets: [
      { label: '三方配置状态', selector: '.integration-status-grid > article', minItems: 3 },
      { label: '三方配置业务分区', selector: '.settings-section-card', minItems: 3 },
    ],
  },
  'settings-menus': { datasets: [{ label: '菜单节点', selector: '.menu-name-cell' }] },
  profile: {
    datasets: [{ label: '当前账号角色', selector: '.profile-role-list > span' }],
    values: [{ label: '个人中心账号信息', selector: '.profile-readonly-grid dd', minimumLength: 1 }],
  },
}

function markerCandidates(manifest: DemoSeedManifest, entityKey: string, category?: string) {
  const entities = manifest.entities?.[entityKey]
  if (!Array.isArray(entities)) throw new Error(`演示数据清单缺少 entities.${entityKey}`)
  const selected = category ? entities.filter((item) => item.category === category) : entities
  const candidates = selected.flatMap((item) => [item.name, item.code, item.slug])
    .map((item) => String(item || '').trim())
    .filter(Boolean)
  if (!candidates.length) throw new Error(`演示数据清单 entities.${entityKey}${category ? `(${category})` : ''} 没有可用 name/code/slug`)
  return candidates
}

async function renderedCount(page: Page, selector: string) {
  return page.locator(selector).evaluateAll((elements) => elements.filter((element) => {
    const style = getComputedStyle(element)
    const bounds = element.getBoundingClientRect()
    return style.display !== 'none' && style.visibility !== 'hidden'
      && bounds.width > 0 && bounds.height > 0 && element.getClientRects().length > 0
  }).length)
}

export function hasNonEmptyAcceptance(route: string) {
  return Boolean(routeAcceptance[route])
}

export async function expectRouteHasNonEmptyData(page: Page, route: string): Promise<NonEmptyEvidence> {
  const acceptance = routeAcceptance[route]
  if (!acceptance) throw new Error(`正式路由 ${route} 没有配置非空页面验收规则`)
  const needsManifest = Boolean(acceptance.datasets?.some((item) => item.manifestEntityKey))
  const manifest = needsManifest ? demoSeedManifest() : undefined
  const evidence: NonEmptyEvidence = { route, seedId: manifest?.seedId || 'iam-or-static-config', datasets: [], values: [] }

  for (const requirement of acceptance.datasets || []) {
    const minimum = requirement.minItems ?? 1
    await expect.poll(
      () => renderedCount(page, requirement.selector),
      { timeout: 30_000, message: `${route} / ${requirement.label} 必须显示至少 ${minimum} 条真实数据` },
    ).toBeGreaterThanOrEqual(minimum)
    const count = await renderedCount(page, requirement.selector)
    let matchedMarker: string | undefined

    if (requirement.manifestEntityKey && manifest) {
      const candidates = markerCandidates(manifest, requirement.manifestEntityKey, requirement.entityCategory)
      const scope = page.locator(requirement.markerScopeSelector || 'main').first()
      await expect(scope, `${route} / ${requirement.label} 的数据容器没有渲染`).toBeVisible()
      await expect.poll(async () => {
        const content = await scope.innerText()
        matchedMarker = candidates.find((candidate) => content.includes(candidate))
        return matchedMarker || ''
      }, {
        timeout: 30_000,
        message: `${route} / ${requirement.label} 必须展示 manifest 中的持久化演示数据，不能只依赖临时测试数据`,
      }).not.toBe('')
    }

    evidence.datasets.push({
      label: requirement.label,
      selector: requirement.selector,
      count,
      manifestEntityKey: requirement.manifestEntityKey,
      matchedMarker,
    })
  }

  for (const requirement of acceptance.values || []) {
    const locator = page.locator(requirement.selector).first()
    await expect(locator, `${route} / ${requirement.label} 控件没有渲染`).toBeVisible({ timeout: 30_000 })
    await expect.poll(async () => {
      const raw = await locator.evaluate((element) => element instanceof HTMLInputElement || element instanceof HTMLTextAreaElement
        ? element.value
        : element.textContent || '')
      return raw.trim().length
    }, {
      timeout: 30_000,
      message: `${route} / ${requirement.label} 不允许为空`,
    }).toBeGreaterThanOrEqual(requirement.minimumLength ?? 1)
    const raw = await locator.evaluate((element) => element instanceof HTMLInputElement || element instanceof HTMLTextAreaElement
      ? element.value
      : element.textContent || '')
    evidence.values.push({ label: requirement.label, selector: requirement.selector, valueLength: raw.trim().length })
  }

  return evidence
}