import type { Metadata } from 'next'
import { notFound, redirect } from 'next/navigation'
import { Suspense } from 'react'
import AutomationWorkflowsDashboard from '@/components/department-dashboard/AutomationWorkflowsDashboard'
import PermissionsDashboard from '@/components/department-dashboard/PermissionsDashboard'
import BrandHealthDashboard from '@/components/department-dashboard/BrandHealthDashboard'
import BusinessTrendsDashboard from '@/components/department-dashboard/BusinessTrendsDashboard'
import TeamCapacityDashboard from '@/components/department-dashboard/TeamCapacityDashboard'
import CoreMetricsDashboard from '@/components/department-dashboard/CoreMetricsDashboard'
import DepartmentShell from '@/components/department-dashboard/DepartmentShell'
import OrganizationStructureDashboard from '@/components/department-dashboard/OrganizationStructureDashboard'
import TeamFunctionsDashboard from '@/components/department-dashboard/TeamFunctionsDashboard'
import ValueMetricsDashboard from '@/components/department-dashboard/ValueMetricsDashboard'
import BrandKnowledgeDashboard from '@/components/department-dashboard/BrandKnowledgeDashboard'
import PerformanceConversionDashboard from '@/components/department-dashboard/PerformanceConversionDashboard'
import WorkspacePlaceholder from '@/components/department-dashboard/WorkspacePlaceholder'
import {
  getFrameworkWorkspaceParams,
  getWorkspaceItem,
  WORKSPACE_REDIRECTS,
} from '@/components/department-dashboard/workspace-navigation'

type WorkspaceItemPageProps = {
  params: {
    section: string
    item: string
  }
  searchParams?: { view?: string; scope?: string }
}

function AutomationWorkflowsFallback() {
  return (
    <DepartmentShell>
      <main
        className="flex h-[calc(100dvh-72px)] min-h-[560px] flex-col overflow-hidden bg-white lg:grid lg:grid-cols-[232px_minmax(0,1fr)]"
        aria-label="正在加载自动化工作流"
        aria-busy="true"
      >
        <aside className="grid shrink-0 grid-cols-2 gap-2 border-b border-[#e2e8f0] bg-[#f8fafc] px-4 py-4 lg:min-h-0 lg:grid-cols-1 lg:content-start lg:gap-1 lg:border-b-0 lg:border-r lg:py-6">
          <div className="h-[58px] animate-pulse rounded-lg bg-[#e6edf5]" />
          <div className="h-[58px] animate-pulse rounded-lg bg-[#eef2f6]" />
        </aside>
        <section className="min-h-0 min-w-0 flex-1 bg-[#f2f4f7]" />
      </main>
    </DepartmentShell>
  )
}

export function generateStaticParams() {
  return getFrameworkWorkspaceParams()
}

export function generateMetadata({ params }: WorkspaceItemPageProps): Metadata {
  const workspace = getWorkspaceItem(params.section, params.item)
  if (!workspace) return {}

  if (workspace.section.key === 'assets' && workspace.item.key === 'automation-workflows') {
    return {
      title: '自动化工作流 | 资产与AI自动化 | 品牌中心部门看板',
      description: '集中进入绩效考核调研与作品过稿看板。',
    }
  }

  if (workspace.section.key === 'governance' && workspace.item.key === 'permissions') {
    return {
      title: '权限管理 | 治理与设置 | 品牌中心部门看板',
      description: '集中配置权限组与查看人员的权限组归属。',
    }
  }

  if (workspace.section.key === 'organization' && workspace.item.key === 'organization-structure') {
    return {
      title: '组织架构 | 组织管理 | 品牌中心部门看板',
      description: '按品牌中心或全公司范围查看花名册组织层级与人员明细。',
    }
  }

  if (workspace.section.key === 'organization' && workspace.item.key === 'team-functions') {
    return {
      title: '团队职能 | 组织管理 | 品牌中心部门看板',
      description: '按团队查看品牌服务、前置能力、岗位与职责边界。',
    }
  }

  if (workspace.section.key === 'assets' && workspace.item.key === 'value-metrics') {
    return {
      title: '价值指标 | 资产与AI自动化 | 品牌中心部门看板',
      description: '从素材资产库按资产类型查看复用率与下载次数明细。',
    }
  }

  if (workspace.section.key === 'assets' && workspace.item.key === 'brand-knowledge') {
    return {
      title: '品牌知识库 | 资产与AI自动化 | 品牌中心部门看板',
      description: '按素材资产库的浏览方式检索和分类查看品牌知识。',
    }
  }

  if (workspace.section.key === 'business' && workspace.item.key === 'performance-conversion') {
    return {
      title: '业绩转化 | 业务经营 | 品牌中心部门看板',
      description: '按六个品牌关联已完结美术流程商品 ID，查看流程完结后六个月的每日经营变化。',
    }
  }

  if (workspace.item.status !== 'framework') return {}

  return {
    title: `${workspace.item.title} | ${workspace.section.title} | 品牌中心部门看板`,
    description: workspace.section.key === 'dashboard' && workspace.item.key === 'brand-health'
      ? '六个品牌的健康度评分维度与权重框架。'
      : workspace.section.key === 'dashboard' && workspace.item.key === 'business-trends'
        ? '按六个品牌查看美术设计与内容视频流程近八周的发起、完结数量及每周任务明细。'
        : workspace.section.key === 'dashboard' && workspace.item.key === 'team-capacity'
          ? '按二级部门查看团队近八周收到与完结流程，并下钻查看每周任务明细。'
        : `${workspace.item.title}二级页面框架。`,
  }
}

export default function WorkspaceItemPage({ params, searchParams }: WorkspaceItemPageProps) {
  const legacyTarget = WORKSPACE_REDIRECTS[`${params.section}/${params.item}`]
  if (legacyTarget) redirect(legacyTarget)
  const workspace = getWorkspaceItem(params.section, params.item)

  if (!workspace) {
    notFound()
  }

  if (workspace.section.key === 'assets' && workspace.item.key === 'automation-workflows') {
    return (
      <Suspense fallback={<AutomationWorkflowsFallback />}>
        <AutomationWorkflowsDashboard />
      </Suspense>
    )
  }

  if (workspace.section.key === 'organization' && workspace.item.key === 'organization-structure') {
    return <OrganizationStructureDashboard scope={searchParams?.scope === 'company' ? 'company' : 'brand'} />
  }

  if (workspace.section.key === 'organization' && workspace.item.key === 'team-functions') {
    return <TeamFunctionsDashboard />
  }

  if (workspace.section.key === 'assets' && workspace.item.key === 'value-metrics') {
    return <ValueMetricsDashboard />
  }

  if (workspace.section.key === 'assets' && workspace.item.key === 'brand-knowledge') {
    return <BrandKnowledgeDashboard />
  }

  if (workspace.section.key === 'business' && workspace.item.key === 'performance-conversion') {
    return <PerformanceConversionDashboard />
  }

  if (workspace.section.key === 'governance' && workspace.item.key === 'permissions') {
    return <PermissionsDashboard view={searchParams?.view === 'people' ? 'people' : 'groups'} />
  }

  if (workspace.item.status !== 'framework') notFound()

  if (workspace.section.key === 'dashboard' && workspace.item.key === 'core-metrics') {
    return <CoreMetricsDashboard />
  }

  if (workspace.section.key === 'dashboard' && workspace.item.key === 'brand-health') {
    return <BrandHealthDashboard />
  }

  if (workspace.section.key === 'dashboard' && workspace.item.key === 'business-trends') {
    return <BusinessTrendsDashboard />
  }

  if (workspace.section.key === 'dashboard' && workspace.item.key === 'team-capacity') {
    return <TeamCapacityDashboard />
  }

  return (
    <WorkspacePlaceholder
      title={workspace.item.title}
      description={`“${workspace.item.title}”属于“${workspace.section.title}”板块，当前先建立独立二级页面框架。`}
      accent={workspace.section.accent}
      accentSoft={workspace.section.accentSoft}
      accentText={workspace.section.accentText}
    />
  )
}