import {
  BarChart3,
  BellRing,
  BookOpenText,
  Download,
  ExternalLink,
  Folders,
  History,
  Image as ImageIcon,
  LayoutDashboard,
  Link2,
  LogOut,
  MessageSquareText,
  Orbit,
  ScrollText,
  Settings,
  Sparkles,
  Tags,
} from 'lucide-react'
import type { ReactNode } from 'react'
import { NavLink } from 'react-router-dom'

import { Badge } from '@/components/ui/badge'
import { Button } from '@/components/ui/button'
import { Separator } from '@/components/ui/separator'
import { buildFrontendUrl } from '@/lib/frontend-url'
import { cn } from '@/lib/utils'

const primaryNav = [
  {
    to: '/',
    label: '概览',
    description: '站点运营总览',
    icon: LayoutDashboard,
  },
  {
    to: '/analytics',
    label: '数据分析',
    description: '搜索词与 AI 问答洞察',
    icon: BarChart3,
  },
  {
    to: '/posts',
    label: '文章',
    description: 'Markdown 内容管理',
    icon: ScrollText,
  },
  {
    to: '/categories',
    label: '分类',
    description: '分类目录与聚合统计',
    icon: Folders,
  },
  {
    to: '/tags',
    label: '标签',
    description: '标签库与引用整理',
    icon: Tags,
  },
  {
    to: '/backups',
    label: '备份',
    description: '全站导出与恢复',
    icon: Download,
  },
  {
    to: '/revisions',
    label: '版本',
    description: '历史快照与一键回滚',
    icon: History,
  },
  {
    to: '/comments',
    label: '评论',
    description: '审核与段落回复',
    icon: MessageSquareText,
  },
  {
    to: '/friend-links',
    label: '友链',
    description: '友链申请与互链管理',
    icon: Link2,
  },
  {
    to: '/reviews',
    label: '评测',
    description: '评测内容库',
    icon: BookOpenText,
  },
  {
    to: '/media',
    label: '媒体库',
    description: '对象存储图片管理',
    icon: ImageIcon,
  },
  {
    to: '/subscriptions',
    label: '订阅',
    description: '邮件 / Webhook 推送',
    icon: BellRing,
  },
  {
    to: '/audit',
    label: '审计',
    description: '后台操作审计日志',
    icon: Settings,
  },
  {
    to: '/settings',
    label: '设置',
    description: '品牌、资料与 AI 配置',
    icon: Settings,
  },
]

export function AppShell({
  children,
  username,
  email,
  authSource,
  authProvider,
  loggingOut,
  canLogout,
  onLogout,
}: {
  children: ReactNode
  username: string | null
  email: string | null
  authSource: string | null
  authProvider: string | null
  loggingOut: boolean
  canLogout: boolean
  onLogout: () => Promise<void>
}) {
  return (
    <div className="min-h-screen bg-background text-foreground">
      <div className="mx-auto flex min-h-screen w-full max-w-[1600px] gap-6 px-4 py-4 lg:px-6 lg:py-6">
        <aside className="hidden w-[310px] shrink-0 lg:block">
          <div className="sticky top-6 overflow-hidden rounded-[2rem] border border-border/70 bg-card/90 shadow-[0_32px_90px_rgba(15,23,42,0.14)] backdrop-blur">
            <div className="space-y-5 p-6">
              <div className="space-y-3">
                <div className="inline-flex items-center gap-2 rounded-full border border-primary/20 bg-primary/10 px-3 py-1 text-[11px] font-semibold uppercase tracking-[0.28em] text-primary">
                  <Orbit className="h-3.5 w-3.5" />
                  Termi 后台
                </div>
                <div className="space-y-2">
                  <h1 className="text-2xl font-semibold tracking-tight">博客系统控制台</h1>
                  <p className="text-sm leading-6 text-muted-foreground">
                    一个独立的 React 管理工作台，用来处理发布、审核、运营以及站内 AI 配置。
                  </p>
                </div>
              </div>

              <Separator />

              <nav className="space-y-2">
                {primaryNav.map((item) => {
                  const Icon = item.icon

                  return (
                    <NavLink
                      key={item.to}
                      to={item.to}
                      end={item.to === '/'}
                      className={({ isActive }) =>
                        cn(
                          'group flex items-start gap-3 rounded-2xl border px-4 py-3 transition-all',
                          isActive
                            ? 'border-primary/30 bg-primary/10 shadow-[0_12px_30px_rgba(37,99,235,0.14)]'
                            : 'border-transparent bg-background/50 hover:border-border/80 hover:bg-accent/55',
                        )
                      }
                    >
                      {({ isActive }) => (
                        <>
                          <div
                            className={cn(
                              'mt-0.5 flex h-10 w-10 items-center justify-center rounded-xl border',
                              isActive
                                ? 'border-primary/25 bg-primary/12 text-primary'
                                : 'border-border/80 bg-secondary text-muted-foreground',
                            )}
                          >
                            <Icon className="h-4 w-4" />
                          </div>
                          <div className="min-w-0 flex-1">
                            <div className="font-medium">{item.label}</div>
                            <p className="mt-1 text-sm leading-6 text-muted-foreground">
                              {item.description}
                            </p>
                          </div>
                        </>
                      )}
                    </NavLink>
                  )
                })}
              </nav>

              <Separator />

              <div className="rounded-[1.7rem] border border-border/70 bg-background/65 p-5">
                <div className="flex items-center justify-between gap-3">
                  <div>
                    <p className="text-xs uppercase tracking-[0.24em] text-muted-foreground">
                      工作台状态
                    </p>
                    <p className="mt-1 text-sm text-muted-foreground">
                      核心后台流程统一运行在当前独立管理端。
                    </p>
                  </div>
                  <Badge variant="success">运行中</Badge>
                </div>
                <div className="mt-4 grid gap-2">
                  <div className="rounded-2xl border border-border/60 bg-card/70 px-4 py-3 text-sm text-muted-foreground">
                    前台站点与后台管理保持解耦。
                  </div>
                  <div className="rounded-2xl border border-border/60 bg-card/70 px-4 py-3 text-sm text-muted-foreground">
                    后端继续作为统一认证与数据层。
                  </div>
                </div>
              </div>
            </div>
          </div>
        </aside>

        <div className="min-w-0 flex-1 space-y-6">
          <header className="sticky top-4 z-20 rounded-[1.8rem] border border-border/70 bg-card/80 px-5 py-4 shadow-[0_20px_60px_rgba(15,23,42,0.1)] backdrop-blur">
            <div className="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
              <div className="space-y-2">
                <div className="inline-flex items-center gap-2 rounded-full bg-secondary px-3 py-1 text-[11px] font-semibold uppercase tracking-[0.24em] text-secondary-foreground">
                  <Sparkles className="h-3.5 w-3.5" />
                  新版管理工作台
                </div>
                <div>
                  <p className="text-sm text-muted-foreground">
                    当前登录：{username ?? 'admin'}
                  </p>
                  <p className="text-xs uppercase tracking-[0.18em] text-muted-foreground">
                    {authProvider ?? 'React + shadcn/ui 基础架构'}
                  </p>
                  {email ? (
                    <p className="text-xs text-muted-foreground">{email}</p>
                  ) : authSource ? (
                    <p className="text-xs text-muted-foreground">认证来源：{authSource}</p>
                  ) : null}
                </div>
              </div>

              <div className="flex gap-2 overflow-x-auto lg:hidden">
                {primaryNav.map((item) => (
                  <NavLink
                    key={item.to}
                    to={item.to}
                    end={item.to === '/'}
                    className={({ isActive }) =>
                      cn(
                        'rounded-full border px-3 py-2 text-sm whitespace-nowrap transition-colors',
                        isActive
                          ? 'border-primary/30 bg-primary/10 text-primary'
                          : 'border-border/70 bg-background/60 text-muted-foreground',
                      )
                    }
                  >
                    {item.label}
                  </NavLink>
                ))}
              </div>

              <div className="flex flex-wrap items-center gap-3">
                <Button variant="outline" asChild>
                  <a href={buildFrontendUrl('/')} target="_blank" rel="noreferrer">
                    <ExternalLink className="h-4 w-4" />
                    打开前台
                  </a>
                </Button>
                <Button
                  variant="ghost"
                  onClick={() => void onLogout()}
                  disabled={loggingOut || !canLogout}
                  title={canLogout ? undefined : '当前会话由前置 SSO / 代理控制'}
                >
                  <LogOut className="h-4 w-4" />
                  {canLogout ? (loggingOut ? '退出中...' : '退出登录') : 'SSO 受代理保护'}
                </Button>
              </div>
            </div>
          </header>

          <main>{children}</main>
        </div>
      </div>
    </div>
  )
}